STM8S105C4/6 STM8S105K4/6 STM8S105S4/6 Access line, 16 MHz STM8S 8-bit MCU, up to 32 Kbyte Flash, integrated EEPROM, 10-bit ADC, timers, UART, SPI, I²C Datasheet - production data Features Core  16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline LQFP48 (7x7mm) LQFP44 (10x10mm) LQFP32 (7x7mm)  Extended instruction set Memories (cid:22)(cid:21)  Program memory: up to 32 Kbyte Flash; data retention 20 years at 55 °C after 10 kcycle (cid:20) UFQFPN32 (5x5mm) SDIP32 400ml  Data memory: up to 1 Kbyte true data EEPROM; endurance 300 kcycle  2x16-bit general purpose timer, with 2+3 CAPCOM channels (IC, OC or PWM)  RAM: up to 2 Kbyte  8-bit basic timer with 8-bit prescaler Clock, reset and supply management  Auto wake-up timer  2.95 to 5.5 V operating voltage  Window watchdog and independent watchdog timers  Flexible clock control, 4 master clock sources – Low power crystal resonator oscillator Communication interfaces – External clock input  UART with clock output for synchronous – Internal, user-trimmable 16 MHz RC operation, SmartCard, IrDA, LIN master mode – Internal low-power 128 kHz RC  SPI interface up to 8 Mbit/s  Clock security system with clock monitor  I2C interface up to 400 kbit/s  Power management: – Low-power modes (wait, active-halt, halt) Analog to digital converter (ADC) – Switch-off peripheral clocks individually  10-bit, ±1 LSB ADC with up to 10 multiplexed  Permanently active, low-consumption power- channels, scan mode and analog watchdog on and power-down reset I/Os Interrupt management  Up to 38 I/Os on a 48-pin package including   Nested interrupt controller with 32 interrupts 16 high sink outputs  Up to 37 external interrupts on 6 vectors  Highly robust I/O design, immune against current injection Timers Unique ID  Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time  96-bit unique key for each device insertion and flexible synchronization September 2015 DocID14771 Rev 15 1/121 This is information on a product in full production. www.st.com

Contents STM8S105x4/6 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 Central processing unit STM8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Single wire interface module (SWIM) and debug module (DM) . . . . . . . . 14 4.3 Interrupt controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4 Flash program and data EEPROM memory . . . . . . . . . . . . . . . . . . . . . . . 14 4.5 Clock controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.6 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.7 Watchdog timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.8 Auto wakeup counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.9 Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.10 TIM1 - 16-bit advanced control timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.11 TIM2, TIM3 - 16-bit general purpose timers . . . . . . . . . . . . . . . . . . . . . . . 18 4.12 TIM4 - 8-bit basic timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.13 Analog-to-digital converter (ADC1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.14 Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.14.1 UART2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.14.2 SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.14.3 I2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5 Pinout and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.1 Alternate function remapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6 Memory and register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.1 Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.2 Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.2.1 I/O port hardware register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.2.2 General hardware register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2/121 DocID14771 Rev 15

STM8S105x4/6 Contents 6.2.3 CPU/SWIM/debug module/interrupt controller registers . . . . . . . . . . . . 42 7 Interrupt vector mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8 Option byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 8.1 Alternate function remapping bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 9 Unique ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 10 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1 Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1.1 Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1.2 Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1.3 Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1.4 Typical current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 10.1.5 Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 10.1.6 Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 10.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 10.3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 10.3.1 VCAP external capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 10.3.2 Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 10.3.3 External clock sources and timing characteristics . . . . . . . . . . . . . . . . . 66 10.3.4 Internal clock sources and timing characteristics . . . . . . . . . . . . . . . . . 69 10.3.5 Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 10.3.6 I/O port pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 10.3.7 Typical output level curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 10.3.8 Reset pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 10.3.9 SPI serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 10.3.10 I2C interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 10.3.11 10-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 10.3.12 EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 11 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 11.1 LQFP48 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 11.2 LQFP44 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 11.3 LQFP32 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 11.4 UFQFPN32 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 DocID14771 Rev 15 3/121 4

Contents STM8S105x4/6 11.5 SDIP32 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 12 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 12.1 Reference document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 12.2 Selecting the product temperature range . . . . . . . . . . . . . . . . . . . . . . . . 107 13 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 13.1 STM8S105 FASTROM microcontroller option list . . . . . . . . . . . . . . . . . 109 14 STM8 development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 14.1 Emulation and in-circuit debugging tools . . . . . . . . . . . . . . . . . . . . . . . . .113 14.1.1 STice key features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 14.2 Software tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 14.2.1 STM8 toolset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 14.2.2 C and assembly toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 14.3 Programming tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 15 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 4/121 DocID14771 Rev 15

STM8S105x4/6 List of tables List of tables Table 1. STM8S105x4/6 access line features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 2. Peripheral clock gating bit assignments in CLK_PCKENR1/2 registers. . . . . . . . . . . . . . . 16 Table 3. TIM timer features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 4. Legend/abbreviations for pin description tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 5. STM8S105x4/6 pin description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Table 6. Flash, data EEPROM and RAM boundary address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table 7. I/O port hardware register map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table 8. General hardware register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Table 9. CPU/SWIM/debug module/interrupt controller registers. . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Table 10. Interrupt mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Table 11. Option byte. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Table 12. Option byte description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Table 13. Alternate function remapping bits [7:0] of OPT2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Table 14. Unique ID registers (96 bits). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Table 15. Voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Table 16. Current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Table 17. Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Table 18. General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Table 19. Operating conditions at power-up/power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Table 20. Total current consumption with code execution in run mode at V = 5 V. . . . . . . . . . . . . 57 DD Table 21. Total current consumption with code execution in run mode at V = 3.3 V . . . . . . . . . . . 58 DD Table 22. Total current consumption in wait mode at V = 5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 DD Table 23. Total current consumption in wait mode at V = 3.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . 59 DD Table 24. Total current consumption in active halt mode at V = 5 V . . . . . . . . . . . . . . . . . . . . . . . 59 DD Table 25. Total current consumption in active halt mode at V = 3.3 V. . . . . . . . . . . . . . . . . . . . . . 60 DD Table 26. Total current consumption in halt mode at V = 5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 DD Table 27. Total current consumption in halt mode at V = 3.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 DD Table 28. Wakeup times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Table 29. Total current consumption and timing in forced reset state . . . . . . . . . . . . . . . . . . . . . . . . 61 Table 30. Peripheral current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Table 31. HSE user external clock characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Table 32. HSE oscillator characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Table 33. HSI oscillator characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Table 34. LSI oscillator characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Table 35. RAM and hardware registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Table 36. Flash program memory/data EEPROM memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Table 37. I/O static characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Table 38. Output driving current (standard ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Table 39. Output driving current (true open drain ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Table 40. Output driving current (high sink ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Table 41. NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Table 42. SPI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Table 43. I2C characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Table 44. ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Table 45. ADC accuracy with R < 10 k, V = 5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 AIN DDA Table 46. ADC accuracy with R < 10 k, V = 3.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 AIN DDA Table 47. EMS data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Table 48. EMI data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 DocID14771 Rev 15 5/121 6

List of tables STM8S105x4/6 Table 49. ESD absolute maximum ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Table 50. Electrical sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Table 51. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package  mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Table 52. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package  mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Table 53. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package  mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Table 54. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat  package mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Table 55. SDIP32 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Table 56. Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Table 57. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 6/121 DocID14771 Rev 15

STM8S105x4/6 List of figures List of figures Figure 1. STM8S105x4/6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2. Flash memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 3. LQFP48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 4. LQFP44 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 5. UFQFPN32/LQFP32 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 6. SDIP32 pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 7. Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 8. Supply current measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Figure 9. Pin loading conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Figure 10. Pin input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Figure 11. f versus V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 CPUmax DD Figure 12. External capacitor C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 EXT Figure 13. Typ I vs. V HSE user external clock, f = 16 MHz . . . . . . . . . . . . . . . . . . . . 62 DD(RUN) DD CPU Figure 14. Typ I vs. f HSE user external clock, V = 5 V . . . . . . . . . . . . . . . . . . . . . . . . 63 DD(RUN) CPU DD Figure 15. Typ I vs. V HSI RC osc, f = 16 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 DD(RUN) DD CPU Figure 16. Typ I vs. V HSE external clock, f = 16 MHz . . . . . . . . . . . . . . . . . . . . . . . . . 64 DD(WFI) DD CPU Figure 17. Typ I vs. f HSE external clock, V = 5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 DD(WFI) CPU DD Figure 18. Typ I vs. V HSI RC osc., f = 16 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 DD(WFI) DD CPU Figure 19. HSE external clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Figure 20. HSE oscillator circuit diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Figure 21. Typical HSI accuracy @ V = 5 V vs 5 temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 DD Figure 22. Typical HSI frequency variation vs V @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . 70 DD Figure 23. Typical LSI frequency variation vs V @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . 71 DD Figure 24. Typical V and V vs V @ 4 temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 IL IH DD Figure 25. Typical pull-up current vs V @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 DD Figure 26. Typical pull-up resistance vs VDD @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Figure 27. Typ. V @ V = 3.3 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 OL DD Figure 28. Typ. V @ V = 5.0 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 OL DD Figure 29. Typ. V @ V = 3.3 V (true open drain ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 OL DD Figure 30. Typ. V @ V = 5.0 V (true open drain ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 OL DD Figure 31. Typ. V @ V = 3.3 V (high sink ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 OL DD Figure 32. Typ. V @ V = 5.0 V (high sink ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 OL DD Figure 33. Typ. V - V @ V = 3.3 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 DD OH DD Figure 34. Typ. V - V @ V = 5.0 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 DD OH DD Figure 35. Typ. V - V @ V = 3.3 V (high sink ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 DD OH DD Figure 36. Typ. V - V @ V = 5.0 V (high sink ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 DD OH DD Figure 37. Typical NRST V and V vs V @ 4 temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 IL IH DD Figure 38. Typical NRST pull-up resistance R vs V @ 4 temperatures. . . . . . . . . . . . . . . . . . . . 79 PU DD Figure 39. Typical NRST pull-up current I vs V @ 4 temperatures. . . . . . . . . . . . . . . . . . . . . . . . 79 pu DD Figure 40. Recommended reset pin protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Figure 41. SPI timing diagram where slave mode and CPHA = 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Figure 42. SPI timing diagram where slave mode and CPHA = 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Figure 43. SPI timing diagram - master mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Figure 44. Typical application with I2C bus and timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Figure 45. ADC accuracy characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Figure 46. Typical application with ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Figure 47. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package outline . . . . . . . . . . . . . . . . . . . 91 Figure 48. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package  DocID14771 Rev 15 7/121 8

List of figures STM8S105x4/6 recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Figure 49. LQFP48 marking example (package top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Figure 50. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package outline . . . . . . . . . . . . . . . . . 94 Figure 51. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package  recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Figure 52. LQFP44 marking example (package top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Figure 53. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package outline . . . . . . . . . . . . . . . . . . . 98 Figure 54. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package  recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Figure 55. LQFP32 marking example (package top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Figure 56. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat  package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Figure 57. UFQFPN32 - 32-pin, 5 x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat  package recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Figure 58. UFQFPN32 marking example (package top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Figure 59. SDIP32 package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Figure 60. SDIP32 marking example (package top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Figure 61. STM8S105x4/6 access line ordering information scheme(1) . . . . . . . . . . . . . . . . . . . . . . 108 8/121 DocID14771 Rev 15

STM8S105x4/6 Introduction 1 Introduction This datasheet contains the description of the device features, pinout, electrical characteristics, mechanical data and ordering information.  For complete information on the STM8S microcontroller memory, registers and peripherals, please refer to the STM8S microcontroller family reference manual (RM0016).  For information on programming, erasing and protection of the internal Flash memory please refer to the STM8S Flash programming manual (PM0051).  For information on the debug and SWIM (single wire interface module) refer to the STM8 SWIM communication protocol and debug module user manual (UM0470).  For information on the STM8 core, please refer to the STM8 CPU programming manual (PM0044). DocID14771 Rev 15 9/121 21

Description STM8S105x4/6 2 Description The STM8S105x4/6 access line 8-bit microcontrollers offer from 16 to 32 Kbyte Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family reference manual (RM0016) refers to devices in this family as medium-density. All devices of the STM8S105x4/6 access line provide the following benefits: reduced system cost, performance and robustness, short development cycles, and product longevity. The system cost is reduced thanks to an integrated true data EEPROM for up to 300 k write/erase cycles and a high system integration level with internal clock oscillators, watchdog and brown-out reset. Device performance is ensured by a 16 MHz CPU clock frequency and enhanced characteristics which include robust I/O, independent watchdogs (with a separate clock source), and a clock security system. Short development cycles are guaranteed due to application scalability across common family product architecture with compatible pinout, memory map and modular peripherals. Product longevity is ensured in the STM8S family thanks to their advanced core which is made in a state-of-the-art technology for applications with 2.95 V to 5.5 V operating supply. Full documentation is offered as well as a wide choice of development tools. 10/121 DocID14771 Rev 15

STM8S105x4/6 Description Table 1. STM8S105x4/6 access line features Device STM8S105C6 STM8S105C4 STM8S105S6 STM8S105S4 STM8S105K6 STM8S105K4 Pin count 48 48 44 44 32 32 Maximum number of 38 38 34 34 25 25 GPIOs Ext. Interrupt 35 35 31 31 23 23 pins Timer CAPCOM 9 9 8 8 8 8 channels Timer complementar 3 3 3 3 3 3 y outputs A/D Converter 10 10 9 9 7 7 channels High sink I/Os 16 16 15 15 12 12 Medium density Flash 32K 16K 32K 16K 32K 16K Program memory (byte) Data EEPROM 1024 1024 1024 1024 1024 1024 (bytes) RAM (bytes) 2K 2K 2K 2K 2K 2K Advanced control timer (TIM1), General-purpose timers (TIM2 and TIM3), Basic timer (TIM4) SPI, Peripheral set I2C, UART, Window WDG, Independent WDG, ADC DocID14771 Rev 15 11/121 21

Block diagram STM8S105x4/6 3 Block diagram Figure 1. STM8S105x4/6 block diagram (cid:53)(cid:72)(cid:86)(cid:72)(cid:87)(cid:3)(cid:69)(cid:79)(cid:82)(cid:70)(cid:78) (cid:59)(cid:55)(cid:36)(cid:47)(cid:3)(cid:20)(cid:16)(cid:20)(cid:25)(cid:3)(cid:48)(cid:43)(cid:93) (cid:38)(cid:79)(cid:82)(cid:70)(cid:78)(cid:3)(cid:70)(cid:82)(cid:81)(cid:87)(cid:85)(cid:82)(cid:79)(cid:79)(cid:72)(cid:85) (cid:53)(cid:72)(cid:86)(cid:72)(cid:87) (cid:53)(cid:72)(cid:86)(cid:72)(cid:87) (cid:53)(cid:38)(cid:3)(cid:76)(cid:81)(cid:87)(cid:17)(cid:3)(cid:20)(cid:25)(cid:3)(cid:48)(cid:43)(cid:93) (cid:39)(cid:72)(cid:87)(cid:72)(cid:70)(cid:87)(cid:82)(cid:85) (cid:51)(cid:50)(cid:53) (cid:37)(cid:50)(cid:53) (cid:53)(cid:38)(cid:3)(cid:76)(cid:81)(cid:87)(cid:17)(cid:3)(cid:20)(cid:21)(cid:27)(cid:3)(cid:78)(cid:43)(cid:93) (cid:38)(cid:79)(cid:82)(cid:70)(cid:78)(cid:3)(cid:87)(cid:82)(cid:3)(cid:83)(cid:72)(cid:85)(cid:76)(cid:83)(cid:75)(cid:72)(cid:85)(cid:68)(cid:79)(cid:86)(cid:3)(cid:68)(cid:81)(cid:71)(cid:3)(cid:70)(cid:82)(cid:85)(cid:72) (cid:58)(cid:76)(cid:81)(cid:71)(cid:82)(cid:90) (cid:54)(cid:55)(cid:48)(cid:27)(cid:3) (cid:58)(cid:39)(cid:42) (cid:70)(cid:82)(cid:85)(cid:72) (cid:44)(cid:81)(cid:71)(cid:72)(cid:83)(cid:72)(cid:81)(cid:71)(cid:72)(cid:81)(cid:87)(cid:3)(cid:58)(cid:39)(cid:42) (cid:54)(cid:76)(cid:81)(cid:74)(cid:79)(cid:72)(cid:3)(cid:90)(cid:76)(cid:85)(cid:72) (cid:39)(cid:72)(cid:69)(cid:88)(cid:74)(cid:18)(cid:54)(cid:58)(cid:44)(cid:48) (cid:56)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:22)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72) (cid:71)(cid:72)(cid:69)(cid:88)(cid:74)(cid:3)(cid:76)(cid:81)(cid:87)(cid:72)(cid:85)(cid:73)(cid:17) (cid:51)(cid:85)(cid:82)(cid:74)(cid:85)(cid:68)(cid:80) (cid:41)(cid:79)(cid:68)(cid:86)(cid:75) (cid:20)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72) (cid:71)(cid:68)(cid:87)(cid:68)(cid:3)(cid:40)(cid:40)(cid:51)(cid:53)(cid:50)(cid:48) (cid:86) (cid:88) (cid:69) (cid:23)(cid:19)(cid:19)(cid:3)(cid:46)(cid:69)(cid:76)(cid:87)(cid:18)(cid:86) (cid:44)(cid:21)(cid:38) (cid:68)(cid:87)(cid:68)(cid:3) (cid:56)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72) (cid:71) (cid:53)(cid:36)(cid:48) (cid:71)(cid:3) (cid:81) (cid:68) (cid:86)(cid:3) (cid:27)(cid:3)(cid:48)(cid:69)(cid:76)(cid:87)(cid:18)(cid:86) (cid:54)(cid:51)(cid:44) (cid:72)(cid:86) (cid:37)(cid:82)(cid:82)(cid:87)(cid:3)(cid:53)(cid:50)(cid:48) (cid:71)(cid:85) (cid:71) (cid:36) (cid:56)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:23)(cid:3)(cid:38)(cid:36)(cid:51)(cid:38)(cid:50)(cid:48)(cid:3) (cid:48)(cid:68)(cid:86)(cid:87)(cid:72)(cid:85)(cid:18)(cid:86)(cid:79)(cid:68)(cid:89)(cid:72)(cid:3) (cid:20)(cid:25)(cid:16)(cid:69)(cid:76)(cid:87)(cid:3)(cid:68)(cid:71)(cid:89)(cid:68)(cid:81)(cid:70)(cid:72)(cid:71) (cid:70)(cid:75)(cid:68)(cid:81)(cid:81)(cid:72)(cid:79)(cid:86)(cid:3)(cid:14)(cid:3)(cid:22)(cid:3) (cid:68)(cid:88)(cid:87)(cid:82)(cid:86)(cid:92)(cid:81)(cid:70)(cid:75)(cid:85)(cid:82) (cid:56)(cid:36)(cid:53)(cid:55)(cid:21) (cid:70)(cid:82)(cid:81)(cid:87)(cid:85)(cid:82)(cid:79)(cid:3)(cid:87)(cid:76)(cid:80)(cid:72)(cid:85)(cid:3)(cid:11)(cid:55)(cid:48)(cid:20)(cid:12)(cid:3)(cid:3) (cid:70)(cid:82)(cid:80)(cid:83)(cid:79)(cid:72)(cid:80)(cid:72)(cid:81)(cid:87)(cid:68)(cid:85)(cid:92)(cid:3) (cid:47)(cid:44)(cid:49)(cid:3)(cid:80)(cid:68)(cid:86)(cid:87)(cid:72)(cid:85) (cid:82)(cid:88)(cid:87)(cid:83)(cid:88)(cid:87)(cid:86) (cid:54)(cid:51)(cid:44)(cid:3)(cid:72)(cid:80)(cid:88)(cid:79)(cid:17) (cid:20)(cid:25)(cid:16)(cid:69)(cid:76)(cid:87)(cid:3)(cid:74)(cid:72)(cid:81)(cid:72)(cid:85)(cid:68)(cid:79)(cid:3)(cid:83)(cid:88)(cid:85)(cid:83)(cid:82)(cid:86)(cid:72) (cid:56)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:24)(cid:3)(cid:38)(cid:36)(cid:51)(cid:38)(cid:50)(cid:48) (cid:87)(cid:76)(cid:80)(cid:72)(cid:85)(cid:3)(cid:11)(cid:55)(cid:44)(cid:48)(cid:21)(cid:15)(cid:3)(cid:55)(cid:44)(cid:48)(cid:22)(cid:12) (cid:70)(cid:75)(cid:68)(cid:81)(cid:81)(cid:72)(cid:79)(cid:86) (cid:27)(cid:16)(cid:69)(cid:76)(cid:87)(cid:3)(cid:69)(cid:68)(cid:86)(cid:76)(cid:70)(cid:3)(cid:87)(cid:76)(cid:80)(cid:72)(cid:85) (cid:56)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:20)(cid:19) (cid:36)(cid:39)(cid:38)(cid:20) (cid:11)(cid:55)(cid:44)(cid:48)(cid:23)(cid:12) (cid:70)(cid:75)(cid:68)(cid:81)(cid:81)(cid:72)(cid:79)(cid:86) (cid:20)(cid:18)(cid:21)(cid:18)(cid:23)(cid:3)(cid:78)(cid:43)(cid:93) (cid:36)(cid:58)(cid:56)(cid:3)(cid:87)(cid:76)(cid:80)(cid:72)(cid:85) (cid:37)(cid:72)(cid:72)(cid:83)(cid:72)(cid:85) (cid:69)(cid:72)(cid:72)(cid:83) (cid:48)(cid:54)(cid:89)(cid:22)(cid:27)(cid:22)(cid:19)(cid:22)(cid:57)(cid:20) 12/121 DocID14771 Rev 15

STM8S105x4/6 Product overview 4 Product overview The following section provides an overview of the basic features of the device functional modules and peripherals. For more detailed information please refer to the corresponding family reference manual (RM0016). 4.1 Central processing unit STM8 The 8-bit STM8 core is designed for code efficiency and performance. It contains 6 internal registers which are directly addressable in each execution context, 20 addressing modes including indexed indirect and relative addressing and 80 instructions. Architecture and registers  Harvard architecture,  3-stage pipeline,  32-bit wide program memory bus - single cycle fetching for most instructions,  X and Y 16-bit index registers - enabling indexed addressing modes with or without offset and read-modify-write type data manipulations,  8-bit accumulator,  24-bit program counter - 16-Mbyte linear memory space,  16-bit stack pointer - access to a 64 K-level stack,  8-bit condition code register - 7 condition flags for the result of the last instruction. Addressing  20 addressing modes,  Indexed indirect addressing mode for look-up tables located anywhere in the address space,  Stack pointer relative addressing mode for local variables and parameter passing. Instruction set  80 instructions with 2-byte average instruction size,  Standard data movement and logic/arithmetic functions,  8-bit by 8-bit multiplication,  16-bit by 8-bit and 16-bit by 16-bit division,  Bit manipulation,  Data transfer between stack and accumulator (push/pop) with direct stack access,  Data transfer using the X and Y registers or direct memory-to-memory transfers. DocID14771 Rev 15 13/121 21

Product overview STM8S105x4/6 4.2 Single wire interface module (SWIM) and debug module (DM) The single wire interface module and debug module permits non-intrusive, real-time in- circuit debugging and fast memory programming. SWIM Single wire interface module for direct access to the debug module and memory programming. The interface can be activated in all device operation modes. The maximum data transmission speed is 145 bytes/ms. Debug module The non-intrusive debugging module features a performance close to a full-featured emulator. Beside memory and peripherals, also CPU operation can be monitored in real- time by means of shadow registers.  R/W to RAM and peripheral registers in real-time  R/W access to all resources by stalling the CPU  Breakpoints on all program-memory instructions (software breakpoints)  Two advanced breakpoints, 23 predefined configurations 4.3 Interrupt controller  Nested interrupts with three software priority levels,  32 interrupt vectors with hardware priority,  Up to 37 external interrupts on 6 vectors including TLI,  Trap and reset interrupts 4.4 Flash program and data EEPROM memory  Up to 32 Kbyte of Flash program single voltage Flash memory,  Up to 1 Kbyte true data EEPROM,  Read while write: writing in data memory possible while executing code in program memory,  User option byte area. Write protection (WP) Write protection of Flash program memory and data EEPROM is provided to avoid unintentional overwriting of memory that could result from a user software malfunction. There are two levels of write protection. The first level is known as MASS (memory access security system). MASS is always enabled and protects the main Flash program memory, data EEPROM and option bytes. To perform in-application programming (IAP), this write protection can be removed by writing a MASS key sequence in a control register. This allows the application to write to data EEPROM, modify the contents of main program memory or the device option bytes. A second level of write protection, can be enabled to further protect a specific area of memory known as UBC (user boot code). Refer to the figure below. 14/121 DocID14771 Rev 15

STM8S105x4/6 Product overview The size of the UBC is programmable through the UBC option byte, in increments of 1 page (512 byte) by programming the UBC option byte in ICP mode. This divides the program memory into two areas:  Main program memory: up to 32 Kbyte minus UBC  User-specific boot code (UBC): Configurable up to 32 Kbyte The UBC area remains write-protected during in-application programming. This means that the MASS keys do not unlock the UBC area. It protects the memory used to store the boot program, specific code libraries, reset and interrupt vectors, the reset routine and usually the IAP and communication routines. Figure 2. Flash memory organization (cid:39)(cid:68)(cid:87)(cid:68)(cid:3)(cid:80)(cid:72)(cid:80)(cid:82)(cid:85)(cid:92)(cid:3)(cid:68)(cid:85)(cid:72)(cid:68)(cid:3)(cid:11)(cid:3)(cid:20)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:12) (cid:39)(cid:68)(cid:87)(cid:68) (cid:40)(cid:40)(cid:51)(cid:53)(cid:50)(cid:48) (cid:80)(cid:72)(cid:80)(cid:82)(cid:85)(cid:92) (cid:50)(cid:83)(cid:87)(cid:76)(cid:82)(cid:81)(cid:3)(cid:69)(cid:92)(cid:87)(cid:72)(cid:86) (cid:51)(cid:85)(cid:82)(cid:74)(cid:85)(cid:68)(cid:80)(cid:80)(cid:68)(cid:69)(cid:79)(cid:72)(cid:3)(cid:68)(cid:85)(cid:72)(cid:68)(cid:3) (cid:56)(cid:37)(cid:38)(cid:3)(cid:68)(cid:85)(cid:72)(cid:68) (cid:73)(cid:85)(cid:82)(cid:80)(cid:3)(cid:20)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:3) (cid:53)(cid:72)(cid:80)(cid:68)(cid:76)(cid:81)(cid:86)(cid:3)(cid:90)(cid:85)(cid:76)(cid:87)(cid:72)(cid:3)(cid:83)(cid:85)(cid:82)(cid:87)(cid:72)(cid:70)(cid:87)(cid:72)(cid:71)(cid:3)(cid:71)(cid:88)(cid:85)(cid:76)(cid:81)(cid:74)(cid:3)(cid:44)(cid:36)(cid:51) (cid:11)(cid:21)(cid:3)(cid:73)(cid:76)(cid:85)(cid:86)(cid:87)(cid:3)(cid:83)(cid:68)(cid:74)(cid:72)(cid:86)(cid:12)(cid:3)(cid:88)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3) (cid:22)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:3)(cid:11)(cid:20)(cid:3)(cid:83)(cid:68)(cid:74)(cid:72)(cid:3)(cid:86)(cid:87)(cid:72)(cid:83)(cid:12) (cid:48)(cid:72)(cid:71)(cid:76)(cid:88)(cid:80)(cid:16)(cid:3)(cid:71)(cid:72)(cid:81)(cid:86)(cid:76)(cid:87)(cid:92)(cid:3) (cid:41)(cid:79)(cid:68)(cid:86)(cid:75)(cid:3)(cid:83)(cid:85)(cid:82)(cid:74)(cid:85)(cid:68)(cid:80)(cid:3) (cid:80)(cid:72)(cid:80)(cid:82)(cid:85)(cid:92)(cid:3) (cid:11)(cid:88)(cid:83)(cid:3)(cid:87)(cid:82)(cid:3)(cid:22)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:12) (cid:51)(cid:85)(cid:82)(cid:74)(cid:85)(cid:68)(cid:80)(cid:3)(cid:80)(cid:72)(cid:80)(cid:82)(cid:85)(cid:92)(cid:3)(cid:68)(cid:85)(cid:72)(cid:68)(cid:3) (cid:58)(cid:85)(cid:76)(cid:87)(cid:72)(cid:3)(cid:68)(cid:70)(cid:70)(cid:72)(cid:86)(cid:86)(cid:3)(cid:83)(cid:82)(cid:86)(cid:86)(cid:76)(cid:69)(cid:79)(cid:72)(cid:3)(cid:73)(cid:82)(cid:85)(cid:3)(cid:44)(cid:36)(cid:51) (cid:48)(cid:54)(cid:89)(cid:22)(cid:27)(cid:22)(cid:19)(cid:23)(cid:57)(cid:20) Read-out protection (ROP) The read-out protection blocks reading and writing the Flash program memory and data EEPROM memory in ICP mode (and debug mode). Once the read-out protection is activated, any attempt to toggle its status triggers a global erase of the program and data memory. Even if no protection can be considered as totally unbreakable, the feature provides a very high level of protection for a general purpose microcontroller. DocID14771 Rev 15 15/121 21

Product overview STM8S105x4/6 4.5 Clock controller The clock controller distributes the system clock (fMASTER) coming from different oscillators to the core and the peripherals. It also manages clock gating for low power modes and ensures clock robustness. Features  Clock prescaler: to get the best compromise between speed and current consumption the clock frequency to the CPU and peripherals can be adjusted by a programmable prescaler.  Safe clock switching: clock sources can be changed safely on the fly in run mode through a configuration register. The clock signal is not switched until the new clock source is ready. The design guarantees glitch-free switching.  Clock management: to reduce power consumption, the clock controller can stop the clock to the core, individual peripherals or memory.  Master clock sources: four different clock sources can be used to drive the master clock: – 1-16 MHz high-speed external crystal (HSE) – Up to 16 MHz high-speed user-external clock (HSE user-ext) – 16 MHz high-speed internal RC oscillator (HSI) – 128 kHz low-speed internal RC (LSI)  Startup clock: After reset, the microcontroller restarts by default with an internal 2 MHz clock (HSI/8). The prescaler ratio and clock source can be changed by the application program as soon as the code execution starts.  Clock security system (CSS): This feature can be enabled by software. If an HSE clock failure occurs, the internal RC (16 MHz/8) is automatically selected by the CSS and an interrupt can optionally be generated.  Configurable main clock output (CCO): This outputs an external clock for use by the application. Tab l e 2. Peripheral clock gating bit assignments in CLK_PCKENR1/2 registers Peripheral Peripheral Peripheral Peripheral Bit Bit Bit Bit clock clock clock clock PCKEN17 TIM1 PCKEN13 UART2 PCKEN27 Reserved PCKEN23 ADC PCKEN16 TIM3 PCKEN12 Reserved PCKEN26 Reserved PCKEN22 AWU PCKEN15 TIM2 PCKEN11 SPI PCKEN25 Reserved PCKEN21 Reserved PCKEN14 TIM4 PCKEN10 I2C PCKEN24 Reserved PCKEN20 Reserved 16/121 DocID14771 Rev 15

STM8S105x4/6 Product overview 4.6 Power management For efficient power management, the application can be put in one of four different low- power modes. You can configure each mode to obtain the best compromise between lowest power consumption, fastest start-up time and available wakeup sources.  Wait mode: In this mode, the CPU is stopped, but peripherals are kept running. The wakeup is performed by an internal or external interrupt or reset.  Active halt mode with regulator on: In this mode, the CPU and peripheral clocks are stopped. An internal wakeup is generated at programmable intervals by the auto wake up unit (AWU). The main voltage regulator is kept powered on, so current consumption is higher than in active halt mode with regulator off, but the wakeup time is faster. Wakeup is triggered by the internal AWU interrupt, external interrupt or reset.  Active halt mode with regulator off: This mode is the same as active halt with regulator on, except that the main voltage regulator is powered off, so the wake up time is slower.  Halt mode: In this mode the microcontroller uses the least power. The CPU and peripheral clocks are stopped, the main voltage regulator is powered off. Wakeup is triggered by external event or reset. 4.7 Watchdog timers The watchdog system is based on two independent timers providing maximum security to the applications. Activation of the watchdog timers is controlled by option bytes or by software. Once activated, the watchdogs cannot be disabled by the user program without performing a reset. Window watchdog timer The window watchdog is used to detect the occurrence of a software fault, usually generated by external interferences or by unexpected logical conditions, which cause the application program to abandon its normal sequence. The window function can be used to trim the watchdog behavior to match the application perfectly. The application software must refresh the counter before time-out and during a limited time window. A reset is generated in two situations: 1. Timeout: At 16 MHz CPU clock the time-out period can be adjusted between 75 µs up to 64 ms. 2. Refresh out of window: The downcounter is refreshed before its value is lower than the one stored in the window register. Independent watchdog timer The independent watchdog peripheral can be used to resolve processor malfunctions due to hardware or software failures. It is clocked by the 128 kHz LSI internal RC clock source, and thus stays active even in case of a CPU clock failure DocID14771 Rev 15 17/121 21

Product overview STM8S105x4/6 The IWDG time base spans from 60 µs to 1 s. 4.8 Auto wakeup counter  Used for auto wakeup from active halt mode,  Clock source: Internal 128 kHz internal low frequency RC oscillator or external clock,  LSI clock can be internally connected to TIM1 input capture channel 1 for calibration. 4.9 Beeper The beeper function outputs a signal on the BEEP pin for sound generation. The signal is in the range of 1, 2 or 4 kHz. The beeper output port is only available through the alternate function remap option bit AFR7. 4.10 TIM1 - 16-bit advanced control timer This is a high-end timer designed for a wide range of control applications. With its complementary outputs, dead-time control and center-aligned PWM capability, the field of applications is extended to motor control, lighting and half-bridge driver  16-bit up, down and up/down autoreload counter with 16-bit prescaler  Four independent capture/compare channels (CAPCOM) configurable as input capture, output compare, PWM generation (edge and center aligned mode) and single pulse mode output  Synchronization module to control the timer with external signals  Break input to force the timer outputs into a defined state  Three complementary outputs with adjustable dead time  Encoder mode  Interrupt sources: 3 x input capture/output compare, 1 x overflow/update, 1 x break 4.11 TIM2, TIM3 - 16-bit general purpose timers  16-bit auto reload (AR) up-counter  15-bit prescaler adjustable to fixed power of 2 ratios 1…32768  Timers with 3 or 2 individually configurable capture/compare channels  PWM mode  Interrupt sources: 2 or 3 x input capture/output compare, 1 x overflow/update 18/121 DocID14771 Rev 15

STM8S105x4/6 Product overview 4.12 TIM4 - 8-bit basic timer  8-bit auto reload, adjustable prescaler ratio to any power of 2 from 1 to 128  Clock source: CPU clock  Interrupt source: 1 x overflow/update Table 3. TIM timer features Timer Counter Counting CAPCOM Complementary Ext. Timer Prescaler synchronization/ size (bits) mode channels outputs trigger chaining Any integer TIM1 16 from 1 to Up/down 4 3 Yes 65536 Any power TIM2 16 of 2 from 1 Up 3 0 No to 32768 No Any power TIM3 16 of 2 from 1 Up 2 0 No to 32768 Any power TIM4 8 of 2 from 1 Up 0 0 No to 128 4.13 Analog-to-digital converter (ADC1) The STM8S105x4/6 products contain a 10-bit successive approximation A/D converter (ADC1) with up to 10 multiplexed input channels and the following main features:  Input voltage range: 0 to VDD  Conversion time: 14 clock cycles  Single and continuous and buffered continuous conversion modes  Buffer size (n x 10 bits) where n = number of input channels  Scan mode for single and continuous conversion of a sequence of channels  Analog watchdog capability with programmable upper and lower thresholds  Analog watchdog interrupt  External trigger input  Trigger from TIM1 TRGO  End of conversion (EOC) interrupt Note: Additional AIN12 analog input is not selectable in ADC scan mode or with analog watchdog. Values converted from AIN12 are stored only into the ADC_DRH/ADC_DRL registers. DocID14771 Rev 15 19/121 21

Product overview STM8S105x4/6 4.14 Communication interfaces The following communication interfaces are implemented:  UART1: Full feature UART, synchronous mode, SPI master mode, Smartcard mode, IrDA mode, single wire mode, LIN2.1 master capability  SPI: Full and half-duplex, 8 Mbit/s  I²C: Up to 400 kbit/s 4.14.1 UART2 Main features  1 Mbit/s full duplex SCI  SPI emulation  High precision baud rate generator  Smartcard emulation  IrDA SIR encoder decoder  LIN master mode  LIN slave mode Asynchronous communication (UART mode)  Full duplex communication - NRZ standard format (mark/space)  Programmable transmit and receive baud rates up to 1 Mbit/s (fCPU/16) and capable of following any standard baud rate regardless of the input frequency  Separate enable bits for transmitter and receiver  Two receiver wakeup modes: – Address bit (MSB) – Idle line (interrupt)  Transmission error detection with interrupt generation  Parity control Synchronous communication  Full duplex synchronous transfers  SPI master operation  8-bit data communication  Maximum speed: 1 Mbit/s at 16 MHz (fCPU/16) LIN master mode  Emission: Generates 13-bit synch. break frame  Reception: Detects 11-bit break frame 20/121 DocID14771 Rev 15

STM8S105x4/6 Product overview LIN slave mode  Autonomous header handling - one single interrupt per valid message header  Automatic baud rate synchronization - maximum tolerated initial clock deviation ±15%  Synch delimiter checking  11-bit LIN synch break detection - break detection always active  Parity check on the LIN identifier field  LIN error management  Hot plugging support 4.14.2 SPI  Maximum speed: 8 Mbit/s (fMASTER/2) both for master and slave  Full duplex synchronous transfers  Simplex synchronous transfers on two lines with a possible bidirectional data line  Master or slave operation - selectable by hardware or software  CRC calculation  1 byte Tx and Rx buffer  Slave/master selection input pin 4.14.3 I2C  I²C master features: – Clock generation – Start and stop generation  I²C slave features: – Programmable I2C address detection – Stop bit detection  Generation and detection of 7-bit/10-bit addressing and general call  Supports different communication speeds: – Standard speed (up to 100 kHz) – Fast speed (up to 400 kHz) DocID14771 Rev 15 21/121 21

Pinout and pin description STM8S105x4/6 5 Pinout and pin description Table 4. Legend/abbreviations for pin description tables Type I= Input, O = Output, S = Power supply Input CM = CMOS Level Output HS = High sink O1 = Slow (up to 2 MHz) O2 = Fast (up to 10 MHz) Output speed O3 = Fast/slow programmability with slow as default state after reset O4 = Fast/slow programmability with fast as default state after reset float = floating, Input wpu = weak pull-up Port and control T = True open drain, configuration Output OD = Open drain, PP = Push pull Bold X (pin state after internal reset release). Reset state Unless otherwise specified, the pin state is the same during the reset phase and after the internal reset release. 22/121 DocID14771 Rev 15

STM8S105x4/6 Pinout and pin description Figure 3. LQFP48 pinout (cid:50)(cid:64) (cid:38) (cid:38) (cid:66) (cid:46) (cid:47) (cid:38) (cid:37)(cid:40)(cid:40)(cid:51)(cid:64)(cid:3) (cid:36)(cid:39)(cid:38)(cid:66)(cid:40)(cid:55)(cid:53)(cid:64)(cid:3) (cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:22)(cid:64)(cid:3) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:37)(cid:46)(cid:44)(cid:49)(cid:64)(cid:3)(cid:62) (cid:26)(cid:18)(cid:55)(cid:47)(cid:44)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:64) (cid:25)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:53)(cid:59) (cid:24)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:55)(cid:59) (cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62) (cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62) 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(cid:23)(cid:27) (cid:23)(cid:26) (cid:23)(cid:25) (cid:23)(cid:24) (cid:23)(cid:23) (cid:23)(cid:22) (cid:23)(cid:21) (cid:23)(cid:20) (cid:23)(cid:19) (cid:22)(cid:28) (cid:22)(cid:27) (cid:22)(cid:26) (cid:49)(cid:53)(cid:54)(cid:55) (cid:20) (cid:22)(cid:25) (cid:51)(cid:42)(cid:20) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49)(cid:18)(cid:51)(cid:36)(cid:20) (cid:21) (cid:22)(cid:24) (cid:51)(cid:42)(cid:19) (cid:50)(cid:54)(cid:38)(cid:50)(cid:56)(cid:55)(cid:18)(cid:51)(cid:36)(cid:21) (cid:22) (cid:22)(cid:23) (cid:51)(cid:38)(cid:26)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:44)(cid:54)(cid:50) (cid:57)(cid:54)(cid:54)(cid:44)(cid:50)(cid:66)(cid:20) (cid:23) (cid:22)(cid:22) (cid:51)(cid:38)(cid:25)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:50)(cid:54)(cid:44)(cid:3) (cid:57)(cid:54)(cid:54) (cid:24) (cid:22)(cid:21) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50)(cid:66)(cid:21) (cid:57)(cid:38)(cid:36)(cid:51) (cid:25) (cid:22)(cid:20) (cid:57)(cid:54)(cid:54)(cid:44)(cid:50)(cid:66)(cid:21) (cid:57)(cid:39)(cid:39) (cid:26) (cid:22)(cid:19) (cid:51)(cid:38)(cid:24)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:54)(cid:38)(cid:46) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50)(cid:66)(cid:20) (cid:27) (cid:21)(cid:28) (cid:51)(cid:38)(cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:3) (cid:62)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:20)(cid:64)(cid:3)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:22)(cid:18)(cid:51)(cid:36)(cid:22) (cid:28) (cid:21)(cid:27) (cid:51)(cid:38)(cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22)(cid:3) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:23) (cid:20)(cid:19) (cid:21)(cid:26) (cid:51)(cid:38)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:24)(cid:3) (cid:20)(cid:20) (cid:21)(cid:25) (cid:51)(cid:38)(cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:38)(cid:46)(cid:3) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:25) (cid:20)(cid:21) (cid:21)(cid:24) (cid:51)(cid:40)(cid:24)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:49)(cid:54)(cid:54) (cid:20)(cid:22) (cid:20)(cid:23) (cid:20)(cid:24) (cid:20)(cid:25) (cid:20)(cid:26) (cid:20)(cid:27) (cid:20)(cid:28) (cid:21)(cid:19) (cid:21)(cid:20) (cid:21)(cid:21) (cid:21)(cid:22)(cid:21)(cid:23) (cid:57)(cid:39)(cid:39)(cid:36) (cid:57)(cid:54)(cid:54)(cid:36) (cid:36)(cid:44)(cid:49)(cid:26)(cid:18)(cid:51)(cid:37)(cid:26) (cid:36)(cid:44)(cid:49)(cid:25)(cid:18)(cid:51)(cid:37)(cid:25) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:39)(cid:36)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:24)(cid:18)(cid:51)(cid:37)(cid:24)(cid:3)(cid:62)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:38)(cid:47)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:23)(cid:18)(cid:51)(cid:37)(cid:23)(cid:3) (cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:40)(cid:55)(cid:53)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:22)(cid:18)(cid:51)(cid:37)(cid:22) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22)(cid:49)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:21)(cid:18)(cid:51)(cid:37)(cid:21) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21)(cid:49)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:20)(cid:18)(cid:51)(cid:37)(cid:20) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:49)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:19)(cid:18)(cid:51)(cid:37)(cid:19) (cid:36)(cid:44)(cid:49)(cid:27)(cid:18)(cid:51)(cid:40)(cid:26)(cid:36)(cid:44)(cid:49)(cid:28)(cid:18)(cid:51)(cid:40)(cid:25) (cid:62) (cid:62) (cid:62) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:19)(cid:24)(cid:57)(cid:20) 1. (HS) high sink capability. 2. (T) True open drain (P-buffer and protection diode to V not implemented). DD 3. [ ] alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a duplication of the function). DocID14771 Rev 15 23/121 30

Pinout and pin description STM8S105x4/6 Figure 4. LQFP44 pinout (cid:50)(cid:64)(cid:3) (cid:38) (cid:38) (cid:66) (cid:46) (cid:47) (cid:38) (cid:37)(cid:40)(cid:40)(cid:51)(cid:64)(cid:3) (cid:36)(cid:39)(cid:38)(cid:66)(cid:40)(cid:55)(cid:53)(cid:64)(cid:3)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:22)(cid:64) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:37)(cid:46)(cid:44)(cid:49)(cid:64)(cid:3)(cid:62) (cid:26)(cid:18)(cid:55)(cid:47)(cid:44)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:64) (cid:25)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:53)(cid:59) (cid:24)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:55)(cid:59) (cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62) (cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62) (cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:58)(cid:44)(cid:48)(cid:3)(cid:19)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62) (cid:19)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:38)(cid:47)(cid:46)(cid:66)(cid:38)(cid:38)(cid:50)(cid:20)(cid:3)(cid:11)(cid:55)(cid:12)(cid:18)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:38)(cid:47) (cid:21)(cid:3)(cid:11)(cid:55)(cid:12)(cid:18)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:39)(cid:36) (cid:39) (cid:39) (cid:39) (cid:39) (cid:39)(cid:39) (cid:39)(cid:39) (cid:40)(cid:40) (cid:40) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51)(cid:51) (cid:51)(cid:51) (cid:51)(cid:51) (cid:51) (cid:23)(cid:23) (cid:23)(cid:22) (cid:23)(cid:21) (cid:23)(cid:20) (cid:23)(cid:19) (cid:22)(cid:28) (cid:22)(cid:27) (cid:22)(cid:26) (cid:22)(cid:25) (cid:22)(cid:24) (cid:22)(cid:23) (cid:49)(cid:53)(cid:54)(cid:55) (cid:20) (cid:22)(cid:22) (cid:51)(cid:42)(cid:20) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49)(cid:18)(cid:51)(cid:36)(cid:20) (cid:21) (cid:22)(cid:21) (cid:51)(cid:42)(cid:19) (cid:50)(cid:54)(cid:38)(cid:50)(cid:56)(cid:55)(cid:18)(cid:51)(cid:36)(cid:21) (cid:22) (cid:22)(cid:20) (cid:51)(cid:38)(cid:26)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:44)(cid:54)(cid:50) (cid:57)(cid:54)(cid:54)(cid:44)(cid:50)(cid:66)(cid:20) (cid:23) (cid:22)(cid:19) (cid:51)(cid:38)(cid:25)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:50)(cid:54)(cid:44) (cid:57)(cid:54)(cid:54) (cid:24) (cid:21)(cid:28) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50)(cid:66)(cid:21) (cid:57)(cid:38)(cid:36)(cid:51) (cid:25) (cid:21)(cid:27) (cid:57)(cid:54)(cid:54)(cid:44)(cid:50)(cid:66)(cid:21) (cid:57)(cid:39)(cid:39) (cid:26) (cid:21)(cid:26) (cid:51)(cid:38)(cid:24)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:54)(cid:38)(cid:46) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50)(cid:66)(cid:20) (cid:27) (cid:21)(cid:25) (cid:51)(cid:38)(cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:23) (cid:28) (cid:21)(cid:24) (cid:51)(cid:38)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:24) (cid:20)(cid:19) (cid:21)(cid:23) (cid:51)(cid:38)(cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:38)(cid:46) (cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:36)(cid:25) (cid:20)(cid:20) (cid:21)(cid:22) (cid:51)(cid:40)(cid:24)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:49)(cid:54)(cid:54) (cid:20)(cid:21) (cid:20)(cid:22) (cid:20)(cid:23) (cid:20)(cid:24) (cid:20)(cid:25) (cid:20)(cid:26) (cid:20)(cid:27) (cid:20)(cid:28) (cid:21)(cid:19) (cid:21)(cid:20) (cid:21)(cid:21) (cid:36) (cid:36) (cid:26) (cid:25) (cid:24) (cid:23) (cid:22) (cid:21) (cid:20) (cid:19) (cid:25) (cid:39) (cid:54) (cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:40) (cid:39) (cid:54) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:57) (cid:57) (cid:26)(cid:18) (cid:25)(cid:18) (cid:24)(cid:18) (cid:23)(cid:18) (cid:22)(cid:18) (cid:21)(cid:18) (cid:20)(cid:18) (cid:19)(cid:18) (cid:28)(cid:18) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:64)(cid:3) (cid:47)(cid:64)(cid:3) (cid:53)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:39) (cid:38) (cid:55) (cid:22) (cid:21) (cid:20) (cid:54) (cid:54) (cid:40) (cid:43) (cid:43) (cid:43) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66) (cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:62) (cid:62) (cid:62) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:19)(cid:25)(cid:57)(cid:20) 1. (HS) high sink capability. 2. (T) True open drain (P-buffer and protection diode to V not implemented). DD 3. [ ] alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a duplication of the function). 24/121 DocID14771 Rev 15

STM8S105x4/6 Pinout and pin description Figure 5. UFQFPN32/LQFP32 pinout (cid:50)(cid:64) (cid:38) (cid:38) (cid:66) (cid:46) (cid:47) (cid:38) (cid:37)(cid:40)(cid:40)(cid:51)(cid:64) (cid:36)(cid:39)(cid:38)(cid:66)(cid:40)(cid:55)(cid:53)(cid:64) (cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:22)(cid:64) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:37)(cid:46)(cid:44)(cid:49)(cid:64)(cid:3)(cid:62) (cid:26)(cid:18)(cid:55)(cid:47)(cid:44)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:64) (cid:25)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:53)(cid:59) (cid:24)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:55)(cid:59) (cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62) (cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62) (cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62) (cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:58)(cid:44)(cid:48) (cid:19)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62) (cid:39) (cid:39) (cid:39) (cid:39) (cid:39) (cid:39) (cid:39) (cid:39) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:22)(cid:21) (cid:22)(cid:20) (cid:22)(cid:19) (cid:21)(cid:28) (cid:21)(cid:27) (cid:21)(cid:26) (cid:21)(cid:25) (cid:21)(cid:24) (cid:49)(cid:53)(cid:54)(cid:55) (cid:20) (cid:21)(cid:23) (cid:51)(cid:38)(cid:26)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:44)(cid:54)(cid:50) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49)(cid:18)(cid:51)(cid:36)(cid:20) (cid:21) (cid:21)(cid:22) (cid:51)(cid:38)(cid:25)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:50)(cid:54)(cid:44) (cid:50)(cid:54)(cid:38)(cid:50)(cid:56)(cid:55)(cid:18)(cid:51)(cid:36)(cid:21) (cid:22) (cid:21)(cid:21) (cid:51)(cid:38)(cid:24)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:54)(cid:38)(cid:46) (cid:57)(cid:54)(cid:54) (cid:23) (cid:21)(cid:20) (cid:51)(cid:38)(cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:3) (cid:57)(cid:38)(cid:36)(cid:51) (cid:24) (cid:21)(cid:19) (cid:51)(cid:38)(cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22)(cid:3) (cid:57)(cid:39)(cid:39) (cid:25) (cid:20)(cid:28) (cid:51)(cid:38)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50) (cid:26) (cid:20)(cid:27) (cid:51)(cid:38)(cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:38)(cid:46)(cid:3) (cid:36)(cid:44)(cid:49)(cid:20)(cid:21)(cid:18)(cid:51)(cid:41)(cid:23) (cid:27) (cid:20)(cid:26) (cid:51)(cid:40)(cid:24)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:49)(cid:54)(cid:54) (cid:28) (cid:20)(cid:19) (cid:20)(cid:20) (cid:20)(cid:21) (cid:20)(cid:22) (cid:20)(cid:23) (cid:20)(cid:24)(cid:20)(cid:25) (cid:36) (cid:36)(cid:24) (cid:23) (cid:22) (cid:21) (cid:20) (cid:19) (cid:39) (cid:54)(cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:37) (cid:39) (cid:54)(cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:51) (cid:57) (cid:57)(cid:24)(cid:18) (cid:23)(cid:18) (cid:22)(cid:18) (cid:21)(cid:18) (cid:20)(cid:18) (cid:19)(cid:18) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:49) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:44) (cid:36)(cid:64)(cid:3) (cid:47)(cid:64)(cid:3) (cid:53)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:49)(cid:64)(cid:3) (cid:39) (cid:38) (cid:55) (cid:22) (cid:21) (cid:20) (cid:54) (cid:54) (cid:40) (cid:43) (cid:43) (cid:43) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66) (cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38) (cid:62) (cid:62) (cid:62) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:19)(cid:26)(cid:57)(cid:20) 1. (HS) high sink capability. 2. [ ] alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a duplication of the function). DocID14771 Rev 15 25/121 30

Pinout and pin description STM8S105x4/6 Figure 6. SDIP32 pinout (cid:36)(cid:39)(cid:38)(cid:66)(cid:40)(cid:55)(cid:53)(cid:18)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:21)(cid:18)(cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:39)(cid:22) (cid:20) (cid:22)(cid:21) (cid:51)(cid:39)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:20)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:22)(cid:64) (cid:62)(cid:37)(cid:40)(cid:40)(cid:51)(cid:64)(cid:3)(cid:55)(cid:44)(cid:48)(cid:21)(cid:66)(cid:38)(cid:43)(cid:20)(cid:18)(cid:11)(cid:43)(cid:54)(cid:12)(cid:3)(cid:51)(cid:39)(cid:23) (cid:21) (cid:22)(cid:20) (cid:51)(cid:39)(cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:58)(cid:44)(cid:48) (cid:22) (cid:22)(cid:19) (cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:55)(cid:59)(cid:18)(cid:51)(cid:39)(cid:24) (cid:51)(cid:39)(cid:19)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:22)(cid:66)(cid:38)(cid:43)(cid:21)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:37)(cid:46)(cid:44)(cid:49)(cid:64)(cid:3)(cid:62)(cid:38)(cid:47)(cid:46)(cid:66)(cid:38)(cid:38)(cid:50)(cid:64) (cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:53)(cid:59)(cid:18)(cid:51)(cid:39)(cid:25) (cid:23) (cid:21)(cid:28) (cid:51)(cid:38)(cid:26)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:44)(cid:54)(cid:50) (cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23)(cid:64)(cid:3)(cid:55)(cid:47)(cid:44)(cid:18)(cid:51)(cid:39)(cid:26) (cid:24) (cid:21)(cid:27) (cid:51)(cid:38)(cid:25)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:48)(cid:50)(cid:54)(cid:44) (cid:49)(cid:53)(cid:54)(cid:55) (cid:25) (cid:21)(cid:26) (cid:51)(cid:38)(cid:24)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:54)(cid:38)(cid:46) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49)(cid:18)(cid:51)(cid:36)(cid:20) (cid:26) (cid:21)(cid:25) (cid:51)(cid:38)(cid:23)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:23) (cid:50)(cid:54)(cid:38)(cid:50)(cid:56)(cid:55)(cid:18)(cid:51)(cid:36)(cid:21) (cid:27) (cid:21)(cid:24) (cid:51)(cid:38)(cid:22)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22) (cid:57)(cid:54)(cid:54) (cid:28) (cid:21)(cid:23) (cid:51)(cid:38)(cid:21)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21) (cid:57)(cid:38)(cid:36)(cid:51) (cid:20)(cid:19) (cid:21)(cid:22) (cid:51)(cid:38)(cid:20)(cid:3)(cid:11)(cid:43)(cid:54)(cid:12)(cid:18)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:18)(cid:56)(cid:36)(cid:53)(cid:55)(cid:21)(cid:66)(cid:38)(cid:46) (cid:57)(cid:39)(cid:39) (cid:20)(cid:20) (cid:21)(cid:21) (cid:51)(cid:40)(cid:24)(cid:18)(cid:54)(cid:51)(cid:44)(cid:66)(cid:49)(cid:54)(cid:54) (cid:57)(cid:39)(cid:39)(cid:44)(cid:50) (cid:20)(cid:21) (cid:21)(cid:20) (cid:51)(cid:37)(cid:19)(cid:18)(cid:36)(cid:44)(cid:49)(cid:19)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:20)(cid:49)(cid:64) (cid:36)(cid:44)(cid:49)(cid:20)(cid:21)(cid:18)(cid:51)(cid:41)(cid:23) (cid:20)(cid:22) (cid:21)(cid:19) (cid:51)(cid:37)(cid:20)(cid:18)(cid:36)(cid:44)(cid:49)(cid:20)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:21)(cid:49)(cid:64) (cid:57)(cid:39)(cid:39)(cid:36) (cid:20)(cid:23) (cid:20)(cid:28) (cid:51)(cid:37)(cid:21)(cid:18)(cid:36)(cid:44)(cid:49)(cid:21)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:38)(cid:43)(cid:22)(cid:49)(cid:64) (cid:20)(cid:24) (cid:20)(cid:27) (cid:57)(cid:54)(cid:54)(cid:36) (cid:51)(cid:37)(cid:22)(cid:18)(cid:36)(cid:44)(cid:49)(cid:22)(cid:3)(cid:62)(cid:55)(cid:44)(cid:48)(cid:20)(cid:66)(cid:40)(cid:55)(cid:53)(cid:64) (cid:62)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:39)(cid:36)(cid:64)(cid:3)(cid:36)(cid:44)(cid:49)(cid:24)(cid:18)(cid:51)(cid:37)(cid:24) (cid:20)(cid:25) (cid:20)(cid:26) (cid:51)(cid:37)(cid:23)(cid:18)(cid:36)(cid:44)(cid:49)(cid:23)(cid:62)(cid:3)(cid:44)(cid:21)(cid:38)(cid:66)(cid:54)(cid:38)(cid:47)(cid:64) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:19)(cid:27)(cid:57)(cid:20) 1. (HS) high sink capability. 2. (T) True open drain (P-buffer and protection diode to V not implemented). DD 3. [ ] alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a duplication of the function). Table 5. STM8S105x4/6 pin description Pin number Input Output 2 Alternate 3 N Main function P pt Default LQFP48 LQFP44 P32/UFQF SDIP32 Pin name Type Floating wpu xt. interru High sink Speed OD PP fur(neacsftteeitor) n afultnecrntiaotne [roeabpmftitteia]orp n F E Q L 1 1 1 6 NRST I/O - X - - - - Reset - Resonato 2 2 2 7 PA1/ OSC IN I/O X X - - O1 X X Port A1 r/ crystal in Resonato PA2/ OSC 3 3 3 8 I/O X X - - O1 X X Port A1 r/ crystal OUT in 4 4 - - VSSIO_1 S - - - - - - - I/O ground - 5 5 4 9 VSS S - - - - - - - Digital ground - 1.8 V regulator 6 6 5 10 VCAP S - - - - - - - - capacitor 26/121 DocID14771 Rev 15

STM8S105x4/6 Pinout and pin description Table 5. STM8S105x4/6 pin description (continued) Pin number Input Output 2 Alternate 3 N Main function P pt Default LQFP48 LQFP44 P32/UFQF SDIP32 Pin name Type Floating wpu xt. interru High sink Speed OD PP fur(neacsftteeitor) n afultnecrntiaotne [roeabpmftitteia]orp n F E Q L 7 7 6 11 VDD S - - - - - - - Digital power supply - 8 8 7 12 VDDIO_1 S - - - - - - - I/O power supply - TIM3_ PA3/ TIM2_CH3 Timer 2 - 9 - - - I/O X X X - O1 X X Port A3 CH1 [TIM3_CH1] channel 3 [AFR1] 10 9 - - PA4 I/O X X X HS O3 X X Port A4 - - 11 10 - - PA5 I/O X X X HS O3 X X Port A5 - - 12 11 - - PA6 I/O X X X HS O3 X X Port A6 - - Analog - - 8 13 PF4/ AIN12(1) I/O X X - - O1 X X Port F4 input - 12(2) 13 12 9 14 VDDA S - - - - - - - Analog power supply - 14 13 10 15 VSSA S - - - - - - - Analog ground - Analog 15 14 - - PB7/ AIN7 I/O X X X - O1 X X Port B7 - input 7 Analog 16 15 - - PB6/ AIN6 I/O X X X - O1 X X Port B6 - input 6 I PB5/ AIN5 Analog 17 16 11 16 I/O X X X - O1 X X Port B5 2C_SDA [I2C_ SDA] input 5 [AFR6] PB4/ AIN4 Analog I2C_SCL 18 17 12 17 I/O X X X - O1 X X Port B4 [I2C_SCL] input 4 [AFR6] PB3/ AIN3 Analog TIM1_ET 19 18 13 18 I/O X X X - O1 X X Port B3 [TIM1_ETR] input 3 R [AFR5] TIM1_CH PB2/ AIN2 Analog 20 19 14 19 I/O X X X - O1 X X Port B2 3N [TIM1_CH3N] input 2 [AFR5] TIM1_CH PB1/ AIN1 Analog 21 20 15 20 I/O X X X - O1 X X Port B1 2N [TIM1_CH2N] input 1 [AFR5] TIM1_CH PB0/ AIN0 Analog 22 21 16 21 I/O X X X - O1 X X Port B0 1N [TIM1_CH1N] input 0 [AFR5] Analog 23 - - - PE7/ AIN8 I/O X X X - O1 X X Port E7 - input 8 DocID14771 Rev 15 27/121 30

Pinout and pin description STM8S105x4/6 Table 5. STM8S105x4/6 pin description (continued) Pin number Input Output 2 Alternate 3 N Main function P pt Default LQFP48 LQFP44 P32/UFQF SDIP32 Pin name Type Floating wpu xt. interru High sink Speed OD PP fur(neacsftteeitor) n afultnecrntiaotne [roeabpmftitteia]orp n F E Q L Analog 24 22 - - PE6/ AIN9 I/O X X X - O1 X X Port E6 - input 9(3) SPI master/ 25 23 17 22 PE5/ SPI_NSS I/O X X X - O1 X X Port E5 - slave select Timer 1 - PC1/ channel 26 24 18 23 TIM1_CH1/ I/O X X X HS O3 X X Port C1 1/ UART2 - UART2_CK synchron ous clock PC2/ Timer 1- 27 25 19 24 I/O X X X HS O3 X X Port C2 - TIM1_CH2 channel 2 PC3/ Timer 1 - 28 26 20 25 I/O X X X HS O3 X X Port C3 - TIM1_CH3 channel 3 PC4/ Timer 1 - 29 - 21 26 I/O X X X HS O3 X X Port C4 - TIM1_CH4 channel 4 30 27 22 27 PC5/ SPI_SCK I/O X X HS O3 X X Port C5 SPI clock - 31 28 - - VSSIO_2 S - - - - - - - I/O ground - 32 29 - - VDDIO_2 S - - - - - - - I/O power supply - SPI master 33 30 23 28 PC6/ SPI_MOSI I/O X X X HS O3 X X Port C6 - out/slave in SPI PC7/ SPI_ 34 31 24 29 I/O X X X HS O3 X X Port C7 master in/ - MISO slave out 35 32 - - PG0 I/O X X - - O1 X X Port G0 - - 36 33 - - PG1 I/O X X - - O1 X X Port G1 - - Timer 1 - PE3/ 37 - - - I/O X X X - O1 X X Port E3 break - TIM1_BKIN input T 38 34 - - PE2/ I 2C_ SDA I/O X - X - O1 - Port E2 I 2C data - (4) T 39 35 - - PE1/ I2C_ SCL I/O X - X - O1 - Port E1 I 2C clock - (4) 28/121 DocID14771 Rev 15

STM8S105x4/6 Pinout and pin description Table 5. STM8S105x4/6 pin description (continued) Pin number Input Output 2 Alternate 3 N Main function P pt Default LQFP48 LQFP44 P32/UFQF SDIP32 Pin name Type Floating wpu xt. interru High sink Speed OD PP fur(neacsftteeitor) n afultnecrntiaotne [roeabpmftitteia]orp n F E Q L Configura 40 36 - - PE0/ CLK_CCO I/O X X X HS O3 X X Port E0 ble clock - output TIM1_BK PD0/ IN TIM3_CH2 Timer 3 - 41 37 25 30 I/O X X X HS O3 X X Port D0 [AFR3]/ [TIM1_BKIN] channel 2 CLK_CC [CLK_CCO] O [AFR2] SWIM 42 38 26 31 PD1/ SWIM(5) I/O X X X X HS O4 X Port D1 data - interface PD2/ Timer 3 - TIM2_CH 43 39 27 32 TIM3_CH1 I/O X X X HS O3 X X Port D2 channel 1 3 [AFR1] [TIM2_CH3] PD3/ Timer 2 - ADC_ET 44 40 28 1 TIM2_CH2 I/O X X X HS O3 X X Port D3 channel 2 R [AFR0] [ADC_ETR] PD4/ BEEP Timer 2 - 45 41 29 2 TIM2_CH1 I/O X X X HS O3 X X Port D4 output channel 1 [BEEP] [AFR7] UART2 PD5/ 46 42 30 3 I/O X X X - O1 X X Port D5 data - UART2_TX transmit UART2 PD6/ 47 43 31 4 I/O X X X - O1 X X Port D6 data - UART2_RX receive PD7/ TLI Top level TIM1_CH 48 44 32 5 I/O X X X - O1 X X Port D7 [TIM1_CH4 interrupt 4 [AFR4] 1. A pull-up is applied to PF4 during the reset phase. This pin is input floating after reset release. 2. AIN12 is not selectable in ADC scan mode or with analog watchdog. 3. In 44-pin package, AIN9 cannot be used by ADC scan mode. 4. In the open-drain output column, ‘T’ defines a true open-drain I/O (P-buffer, weak pull-up and protection diode to V are DD not implemented). 5. The PD1 pin is in input pull-up during the reset phase and after internal reset release. DocID14771 Rev 15 29/121 30

Pinout and pin description STM8S105x4/6 5.1 Alternate function remapping As shown in the rightmost column of the pin description table, some alternate functions can be remapped at different I/O ports by programming one of eight AFR (alternate function remap) option bits. When the remapping option is active, the default alternate function is no longer available. To use an alternate function, the corresponding peripheral must be enabled in the peripheral registers. Alternate function remapping does not effect GPIO capabilities of the I/O ports (see the GPIO section of the family reference manual, RM0016). 30/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map 6 Memory and register map 6.1 Memory map Figure 7. Memory map (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:19)(cid:19)(cid:19)(cid:19) (cid:53)(cid:36)(cid:48) (cid:11)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:12) (cid:24)(cid:20)(cid:21)(cid:3)(cid:69)(cid:92)(cid:87)(cid:72)(cid:3)(cid:86)(cid:87)(cid:68)(cid:70)(cid:78) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:19)(cid:26)(cid:41)(cid:41) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:19)(cid:19)(cid:19) (cid:20)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:3)(cid:71)(cid:68)(cid:87)(cid:68)(cid:3)(cid:40)(cid:40)(cid:51)(cid:53)(cid:50)(cid:48) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:22)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:23)(cid:19)(cid:19) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:26)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:27)(cid:19)(cid:19) (cid:50)(cid:83)(cid:87)(cid:76)(cid:82)(cid:81)(cid:3)(cid:69)(cid:92)(cid:87)(cid:72)(cid:86) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:27)(cid:26)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:28)(cid:19)(cid:19) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:23)(cid:41)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:24)(cid:19)(cid:19)(cid:19) (cid:42)(cid:51)(cid:44)(cid:50)(cid:3)(cid:68)(cid:81)(cid:71)(cid:3)(cid:83)(cid:72)(cid:85)(cid:76)(cid:83)(cid:75)(cid:17)(cid:3)(cid:85)(cid:72)(cid:74)(cid:17) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:24)(cid:26)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:24)(cid:27)(cid:19)(cid:19) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:24)(cid:41)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:25)(cid:19)(cid:19)(cid:19) (cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:3)(cid:69)(cid:82)(cid:82)(cid:87)(cid:3)(cid:53)(cid:50)(cid:48) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:25)(cid:26)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:25)(cid:27)(cid:19)(cid:19) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:26)(cid:40)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:26)(cid:41)(cid:19)(cid:19) (cid:38)(cid:51)(cid:56)(cid:18)(cid:54)(cid:58)(cid:44)(cid:48)(cid:18)(cid:71)(cid:72)(cid:69)(cid:88)(cid:74)(cid:18)(cid:44)(cid:55)(cid:38) (cid:85)(cid:72)(cid:74)(cid:76)(cid:86)(cid:87)(cid:72)(cid:85)(cid:86) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:26)(cid:41)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:27)(cid:19)(cid:19)(cid:19) (cid:22)(cid:21)(cid:3)(cid:76)(cid:81)(cid:87)(cid:72)(cid:85)(cid:85)(cid:88)(cid:83)(cid:87)(cid:3)(cid:89)(cid:72)(cid:70)(cid:87)(cid:82)(cid:85)(cid:86) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:27)(cid:19)(cid:26)(cid:41) (cid:41)(cid:79)(cid:68)(cid:86)(cid:75)(cid:3)(cid:83)(cid:85)(cid:82)(cid:74)(cid:85)(cid:68)(cid:80)(cid:3)(cid:80)(cid:72)(cid:80)(cid:82)(cid:85)(cid:92) (cid:11)(cid:20)(cid:25)(cid:3)(cid:87)(cid:82)(cid:3)(cid:22)(cid:21)(cid:3)(cid:46)(cid:69)(cid:92)(cid:87)(cid:72)(cid:12) (cid:19)(cid:91)(cid:19)(cid:19)(cid:3)(cid:41)(cid:41)(cid:41)(cid:41) (cid:19)(cid:91)(cid:19)(cid:20)(cid:3)(cid:19)(cid:19)(cid:19)(cid:19) (cid:53)(cid:72)(cid:86)(cid:72)(cid:85)(cid:89)(cid:72)(cid:71) (cid:19)(cid:91)(cid:19)(cid:21)(cid:3)(cid:26)(cid:41)(cid:41)(cid:41) (cid:48)(cid:54)(cid:89)(cid:22)(cid:27)(cid:22)(cid:19)(cid:27)(cid:57)(cid:20) The following table lists the boundary addresses for each memory size. The top of the stack is at the RAM end address in each case. DocID14771 Rev 15 31/121 50

Memory and register map STM8S105x4/6 Table 6. Flash, data EEPROM and RAM boundary address Memory area Size (byte) Start address End address 32 K 0x00 8000 0x00 FFFF Flash program memory 16 K 0x00 8000 0x00 BFFF RAM 2 K 0x00 0000 0x00 07FF Data EEPROM 1024 0x00 4000 0x00 43FF 6.2 Register map 6.2.1 I/O port hardware register map Table 7. I/O port hardware register map Address Block Register label Register name Reset status 0x00 5000 PA_ODR Port A data output latch register 0x00 0x00 5001 PA_IDR Port A input pin value register 0xXX(1) 0x00 5002 Port A PA_DDR Port A data direction register 0x00 0x00 5003 PA_CR1 Port A control register 1 0x00 0x00 5004 PA_CR2 Port A control register 2 0x00 0x00 5005 PB_ODR Port B data output latch register 0x00 0x00 5006 PB_IDR Port B input pin value register 0xXX(1) 0x00 5007 Port B PB_DDR Port B data direction register 0x00 0x00 5008 PB_CR1 Port B control register 1 0x00 0x00 5009 PB_CR2 Port B control register 2 0x00 0x00 500A PC_ODR Port C data output latch register 0x00 0x00 500B PB_IDR Port C input pin value register 0xXX(1) 0x00 500C Port C PC_DDR Port C data direction register 0x00 0x00 500D PC_CR1 Port C control register 1 0x00 0x00 500E PC_CR2 Port C control register 2 0x00 0x00 500F PD_ODR Port D data output latch register 0x00 0x00 5010 PD_IDR Port D input pin value register 0xXX(1) 0x00 5011 Port D PD_DDR Port D data direction register 0x00 0x00 5012 PD_CR1 Port D control register 1 0x02 0x00 5013 PD_CR2 Port D control register 2 0x00 32/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 7. I/O port hardware register map (continued) Address Block Register label Register name Reset status 0x00 5014 PE_ODR Port E data output latch register 0x00 0x00 5015 PE_IDR Port E input pin value register 0xXX(1) 0x00 5016 Port E PE_DDR Port E data direction register 0x00 0x00 5017 PE_CR1 Port E control register 1 0x00 0x00 5018 PE_CR2 Port E control register 2 0x00 0x00 5019 PF_ODR Port F data output latch register 0x00 0x00 501A PF_IDR Port F input pin value register 0xXX(1) 0x00 501B Port F PF_DDR Port F data direction register 0x00 0x00 501C PF_CR1 Port F control register 1 0x00 0x00 501D PF_CR2 Port F control register 2 0x00 0x00 501E PG_ODR Port G data output latch register 0x00 0x00 501F PG_IDR Port G input pin value register 0xXX(1) 0x00 5020 Port G PG_DDR Port G data direction register 0x00 0x00 5021 PG_CR1 Port G control register 1 0x00 0x00 5022 PG_CR2 Port G control register 2 0x00 0x00 5023 PH_ODR Port H data output latch register 0x00 0x00 5024 PH_IDR Port H input pin value register 0xXX(1) 0x00 5025 Port H PH_DDR Port H data direction register 0x00 0x00 5026 PH_CR1 Port H control register 1 0x00 0x00 5027 PH_CR2 Port H control register 2 0x00 0x00 5028 PI_ODR Port I data output latch register 0x00 0x00 5029 PI_IDR Port I input pin value register 0xXX(1) 0x00 502A Port I PI_DDR Port I data direction register 0x00 0x00 502B PI_CR1 Port I control register 1 0x00 0x00 502C PI_CR2 Port I control register 2 0x00 1. Depends on the external circuitry. DocID14771 Rev 15 33/121 50

Memory and register map STM8S105x4/6 6.2.2 General hardware register map Table 8. General hardware register map Address Block Register label Register name Reset status 0x00 5050 to 0x00 5059 Reserved area (10 byte) 0x00 505A FLASH_CR1 Flash control register 1 0x00 0x00 505B FLASH_CR2 Flash control register 2 0x00 Flash complementary control 0x00 505C FLASH_NCR2 0xFF register 2 Flash 0x00 505D FLASH _FPR Flash protection register 0x00 Flash complementary 0x00 505E FLASH _NFPR 0xFF protection register Flash in-application 0x00 505F FLASH _IAPSR 0x00 programming status register 0x00 5060 to 0x00 5061 Reserved area (2 byte) Flash program memory 0x00 5062 Flash FLASH _PUKR 0x00 unprotection register 0x00 5063 Reserved area (1 byte) Data EEPROM unprotection 0x00 5064 Flash FLASH _DUKR 0x00 register 0x00 5065 to 0x00 509F Reserved area (59 byte) External interrupt control 0x00 50A0 EXTI_CR1 0x00 register 1 ITC External interrupt control 0x00 50A1 EXTI_CR2 0x00 register 2 0x00 50A2 to 0x00 50B2 Reserved area (17 byte) 0x00 50B3 RST RST_SR Reset status register 0xXX(1) 0x00 50B4 to 0x00 50BF Reserved area (12 byte) 0x00 50C0 CLK_ICKR Internal clock control register 0x01 CLK 0x00 50C1 CLK_ECKR External clock control register 0x00 0x00 50C2 Reserved area (1 byte) 34/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 50C3 CLK_CMSR Clock master status register 0xE1 0x00 50C4 CLK_SWR Clock master switch register 0xE1 0x00 50C5 CLK_SWCR Clock switch control register 0xXX 0x00 50C6 CLK_CKDIVR Clock divider register 0x18 Peripheral clock gating 0x00 50C7 CLK_PCKENR1 0xFF register 1 0x00 50C8 CLK CLK_CSSR Clock security system register 0x00 Configurable clock control 0x00 50C9 CLK_CCOR 0x00 register Peripheral clock gating 0x00 50CA CLK_PCKENR2 0xFF register 2 HSI clock calibration trimming 0x00 50CC CLK_HSITRIMR 0x00 register 0x00 50CD CLK_SWIMCCR SWIM clock control register 0bXXXX XXX0 0x00 50CE to 0x00 50D0 Reserved area (3 byte) 0x00 50D1 WWDG_CR WWDG control register 0x7F WWDG 0x00 50D2 WWDG_WR WWDR window register 0x7F 0x00 50D3 to 00 50DF Reserved area (13 byte) 0x00 50E0 IWDG_KR IWDG key register 0xXX(2) 0x00 50E1 IWDG IWDG_PR IWDG prescaler register 0x00 0x00 50E2 IWDG_RLR IWDG reload register 0xFF 0x00 50E3 to 0x00 50EF Reserved area (13 byte) 0x00 50F0 AWU_CSR1 AWU control/status register 1 0x00 AWU asynchronous prescaler 0x00 50F1 AWU_APR 0x3F AWU buffer register AWU timebase selection 0x00 50F2 AWU_TBR 0x00 register 0x00 50F3 BEEP BEEP_CSR BEEP control/status register 0x1F 0x00 50F4 to 0x00 50FF Reserved area (12 byte) 0x00 5200 SPI_CR1 SPI control register 1 0x00 0x00 5201 SPI_CR2 SPI control register 2 0x00 0x00 5202 SPI_ICR SPI interrupt control register 0x00 0x00 5203 SPI_SR SPI status register 0x02 SPI 0x00 5204 SPI_DR SPI data register 0x00 0x00 5205 SPI_CRCPR SPI CRC polynomial register 0x07 0x00 5206 SPI_RXCRCR SPI Rx CRC register 0xFF 0x00 5207 SPI_TXCRCR SPI Tx CRC register 0xFF DocID14771 Rev 15 35/121 50

Memory and register map STM8S105x4/6 Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 5208 to 0x00 520F Reserved area (8 byte) 0x00 5210 I2C_CR1 I2C control register 1 0x00 0x00 5211 I2C_CR2 I2C control register 2 0x00 0x00 5212 I2C_FREQR I2C frequency register 0x00 0x00 5213 I2C_OARL I2C Own address register low 0x00 I2C Own address register 0x00 5214 I2C_OARH 0x00 high 0x00 5215 Reserved 0x00 5216 I2C_DR I2C data register 0x00 0x00 5217 I2C I2C_SR1 I2C status register 1 0x00 0x00 5218 I2C_SR2 I2C status register 2 0x00 0x00 5219 I2C_SR3 I2C status register 3 0x0X 0x00 521A I2C_ITR I2C interrupt control register 0x00 0x00 521B I2C_CCRL I2C Clock control register low 0x00 0x00 521C I2C_CCRH I2C Clock control register high 0x00 0x00 521D I2C_TRISER I2C TRISE register 0x02 I2C packet error checking 0x00 521E I2C_PECR 0x00 register 0x00 521F to 0x00 522F Reserved area (17 byte) 0x00 5230 to 0x00 523F Reserved area (6 byte) 0x00 5240 UART2_SR UART2 status register 0xC0 0x00 5241 UART2_DR UART2 data register 0xXX 0x00 5242 UART2_BRR1 UART2 baud rate register 1 0x00 0x00 5243 UART2_BRR2 UART2 baud rate register 2 0x00 0x00 5244 UART2_CR1 UART2 control register 1 0x00 0x00 5245 UART2_CR2 UART2 control register 2 0x00 UART2 0x00 5246 UART2_CR3 UART2 control register 3 0x00 0x00 5247 UART2_CR4 UART2 control register 4 0x00 0x00 5248 UART2_CR5 UART2 control register 5 0x00 0x00 5249 UART2_CR6 UART2 control register 6 0x00 0x00 524A UART2_GTR UART2 guard time register 0x00 0x00 524B UART2_PSCR UART2 prescaler register 0x00 0x00 524C to 0x00 524F Reserved area (4 byte) 36/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 5250 TIM1_CR1 TIM1 control register 1 0x00 0x00 5251 TIM1_CR2 TIM1 control register 2 0x00 TIM1 slave mode control 0x00 5252 TIM1_SMCR 0x00 register 0x00 5253 TIM1_ETR TIM1 external trigger register 0x00 0x00 5254 TIM1_IER TIM1 interrupt enable register 0x00 0x00 5255 TIM1_SR1 TIM1 status register 1 0x00 0x00 5256 TIM1_SR2 TIM1 status register 2 0x00 TIM1 event generation 0x00 5257 TIM1_EGR 0x00 register TIM1 capture/compare mode 0x00 5258 TIM1_CCMR1 0x00 register 1 TIM1 capture/compare mode 0x00 5259 TIM1_CCMR2 0x00 register 2 TIM1 capture/compare mode 0x00 525A TIM1_CCMR3 0x00 register 3 TIM1 capture/compare mode 0x00 525B TIM1_CCMR4 0x00 register 4 TIM1 capture/compare enable 0x00 525C TIM1_CCER1 0x00 register 1 TIM1 TIM1 capture/compare enable 0x00 525D TIM1_CCER2 0x00 register 2 0x00 525E TIM1_CNTRH TIM1 counter high 0x00 0x00 525F TIM1_CNTRL TIM1 counter low 0x00 0x00 5260 TIM1_PSCRH TIM1 prescaler register high 0x00 0x00 5261 TIM1_PSCRL TIM1 prescaler register low 0x00 0x00 5262 TIM1_ARRH TIM1 auto-reload register high 0xFF 0x00 5263 TIM1_ARRL TIM1 auto-reload register low 0xFF TIM1 repetition counter 0x00 5264 TIM1_RCR 0x00 register TIM1 capture/compare 0x00 5265 TIM1_CCR1H 0x00 register 1 high TIM1 capture/compare 0x00 5266 TIM1_CCR1L 0x00 register 1 low TIM1 capture/compare 0x00 5267 TIM1_CCR2H 0x00 register 2 high TIM1 capture/compare 0x00 5268 TIM1_CCR2L 0x00 register 2 low TIM1 capture/compare 0x00 5269 TIM1_CCR3H 0x00 register 3 high DocID14771 Rev 15 37/121 50

Memory and register map STM8S105x4/6 Table 8. General hardware register map (continued) Address Block Register label Register name Reset status TIM1 capture/compare 0x00 526A TIM1_CCR3L 0x00 register 3 low TIM1 capture/compare 0x00 526B TIM1_CCR4H 0x00 register 4 high 0x00 526C TIM1 TIM1_CCR4L TIM1 capture/compare 0x00 register 4 low 0x00 526D TIM1_BKR TIM1 break register 0x00 0x00 526E TIM1_DTR TIM1 dead-time register 0x00 0x00 526F TIM1_OISR TIM1 output idle state register 0x00 0x00 5270 to 0x00 52FF Reserved area (147 byte) 38/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 5300 TIM2_CR1 TIM2 control register 1 0x00 0x00 5301 TIM2_IER TIM2 Interrupt enable register 0x00 0x00 5302 TIM2_SR1 TIM2 status register 1 0x00 0x00 5303 TIM2_SR2 TIM2 status register 2 0x00 TIM2 event generation 0x00 5304 TIM2_EGR 0x00 register TIM2 capture/compare mode 0x00 5305 TIM2_CCMR1 0x00 register 1 TIM2 capture/compare mode 0x00 5306 TIM2_CCMR2 0x00 register 2 TIM2 capture/compare mode 0x00 5307 TIM2_CCMR3 0x00 register 3 TIM2 capture/compare enable 0x00 5308 TIM2_CCER1 0x00 register 1 TIM2 capture/compare enable 0x00 5309 TIM2_CCER2 0x00 register 2 0x00 530A TIM2_CNTRH TIM2 counter high 0x00 0x00 530B TIM2 TIM2_CNTRL TIM2 counter low 0x00 0x00 530C TIM2_PSCR IM2 prescaler register 0x00 0x00 530D TIM2_ARRH TIM2 auto-reload register high 0xFF 0x00 530E TIM2_ARRL TIM2 auto-reload register low 0xFF TIM2 capture/compare 0x00 530F TIM2_CCR1H 0x00 register 1 high TIM2 capture/compare 0x00 5310 TIM2_CCR1L 0x00 register 1 low TIM2 capture/compare reg. 2 0x00 5311 TIM2_CCR2H 0x00 high TIM2 capture/compare 0x00 5312 TIM2_CCR2L 0x00 register 2 low TIM2 capture/compare 0x00 5313 TIM2_CCR3H 0x00 register 3 high TIM2 capture/compare 0x00 5314 TIM2_CCR3L 0x00 register 3 low 0x00 5315 to 0x00 531F Reserved area (11 byte) DocID14771 Rev 15 39/121 50

Memory and register map STM8S105x4/6 Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 5320 TIM3_CR1 TIM3 control register 1 0x00 0x00 5321 TIM3_IER TIM3 Interrupt enable register 0x00 0x00 5322 TIM3_SR1 TIM3 status register 1 0x00 0x00 5323 TIM3_SR2 TIM3 status register 2 0x00 TIM3 event generation 0x00 5324 TIM3_EGR 0x00 register TIM3 capture/compare mode 0x00 5325 TIM3_CCMR1 0x00 register 1 TIM3 capture/compare mode 0x00 5326 TIM3_CCMR2 0x00 register 2 TIM3 capture/compare enable 0x00 5327 TIM3_CCER1 0x00 register 1 0x00 5328 TIM3 TIM3_CNTRH TIM3 counter high 0x00 0x00 5329 TIM3_CNTRL TIM3 counter low 0x00 0x00 532A TIM3_PSCR TIM3 prescaler register 0x00 0x00 532B TIM3_ARRH TIM3 auto-reload register high 0xFF 0x00 532C TIM3_ARRL TIM3 auto-reload register low 0xFF TIM3 capture/compare 0x00 532D TIM3_CCR1H 0x00 register 1 high TIM3 capture/compare 0x00 532E TIM3_CCR1L 0x00 register 1 low TIM3 capture/compare reg. 2 0x00 532F TIM3_CCR2H 0x00 high TIM3 capture/compare 0x00 5330 TIM3_CCR2L 0x00 register 2 low 0x00 5331 to 0x00 533F Reserved area (15 byte) 0x00 5340 TIM4_CR1 TIM4 control register 1 0x00 0x00 5341 TIM4_IER TIM4 interrupt enable register 0x00 0x00 5342 TIM4_SR TIM4 status register 0x00 TIM4 event generation 0x00 5343 TIM4 TIM4_EGR 0x00 register 0x00 5344 TIM4_CNTR TIM4 counter 0x00 0x00 5345 TIM4_PSCR TIM4 prescaler register 0x00 0x00 5346 TIM4_ARR TIM4 auto-reload register 0xFF 0x00 5347 to 0x00 53DF Reserved area (153 byte) 0x00 53E0 to 0x00 53F3 ADC1 ADC_DBxR ADC data buffer registers 0x00 0x00 53F4 to 0x00 53FF Reserved area (12 byte) 40/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 8. General hardware register map (continued) Address Block Register label Register name Reset status 0x00 5400 ADC_CSR ADC control/status register 0x00 0x00 5401 ADC_CR1 ADC configuration register 1 0x00 0x00 5402 ADC_CR2 ADC configuration register 2 0x00 0x00 5403 ADC_CR3 ADC configuration register 3 0x00 0x00 5404 ADC_DRH ADC data register high 0xXX 0x00 5405 ADC_DRL ADC data register low 0xXX ADC Schmitt trigger disable 0x00 5406 ADC_TDRH 0x00 register high ADC Schmitt trigger disable 0x00 5407 ADC_TDRL 0x00 register low ADC high threshold register 0x00 5408 ADC_HTRH 0x03 high ADC1 cont’d ADC high threshold register 0x00 5409 ADC_HTRL 0xFF low ADC low threshold register 0x00 540A ADC_LTRH 0x00 high ADC low threshold register 0x00 540B ADC_LTRL 0x00 low ADC analog watchdog status 0x00 540C ADC_AWSRH 0x00 register high ADC analog watchdog status 0x00 540D ADC_AWSRL 0x00 register low ADC analog watchdog control 0x00 540E ADC _AWCRH 0x00 register high ADC analog watchdog control 0x00 540F ADC_AWCRL 0x00 register low 0x00 5410 to 0x00 57FF Reserved area (1008 byte) 1. Depends on the previous reset source. 2. Write-only register. DocID14771 Rev 15 41/121 50

Memory and register map STM8S105x4/6 6.2.3 CPU/SWIM/debug module/interrupt controller registers Table 9. CPU/SWIM/debug module/interrupt controller registers Reset Address Block Register label Register name status 0x00 7F00 A Accumulator 0x00 0x00 7F01 PCE Program counter extended 0x00 0x00 7F02 PCH Program counter high 0x00 0x00 7F03 PCL Program counter low 0x00 0x00 7F04 XH X index register high 0x00 0x00 7F05 CPU(1) XL X index register low 0x00 0x00 7F06 YH Y index register high 0x00 0x00 7F07 YL Y index register low 0x00 0x00 7F08 SPH Stack pointer high 0x03 0x00 7F09 SPL Stack pointer low 0xFF 0x00 7F0A CCR Condition code register 0x28 0x00 7F0B to 0x00 7F5F Reserved area (85 byte) Global configuration 0x00 7F60 CPU CFG_GCR 0x00 register Interrupt software priority 0x00 7F70 ITC_SPR1 0xFF register 1 Interrupt software priority 0x00 7F71 ITC_SPR2 0xFF register 2 Interrupt software priority 0x00 7F72 ITC_SPR3 0xFF register 3 Interrupt software priority 0x00 7F73 ITC_SPR4 0xFF register 4 ITC Interrupt software priority 0x00 7F74 ITC_SPR5 0xFF register 5 Interrupt software priority 0x00 7F75 ITC_SPR6 0xFF register 6 Interrupt software priority 0x00 7F76 ITC_SPR7 0xFF register 7 Interrupt software priority 0x00 7F77 ITC_SPR8 0xFF register 8 0x00 7F78 to 0x00 7F79 Reserved area (2 byte) SWIM control status 0x00 7F80 SWIM SWIM_CSR 0x00 register 0x00 7F81 to 0x00 7F8F Reserved area (15 byte) 42/121 DocID14771 Rev 15

STM8S105x4/6 Memory and register map Table 9. CPU/SWIM/debug module/interrupt controller registers (continued) Reset Address Block Register label Register name status DM breakpoint 1 register 0x00 7F90 DM_BK1RE 0xFF extended byte DM breakpoint 1 register 0x00 7F91 DM_BK1RH 0xFF high byte DM breakpoint 1 register 0x00 7F92 DM_BK1RL 0xFF low byte DM breakpoint 2 register 0x00 7F93 DM_BK2RE 0xFF extended byte DM breakpoint 2 register 0x00 7F94 DM_BK2RH 0xFF high byte DM DM breakpoint 2 register 0x00 7F95 DM_BK2RL 0xFF low byte DM debug module control 0x00 7F96 DM_CR1 0x00 register 1 DM debug module control 0x00 7F97 DM_CR2 0x00 register 2 DM debug module 0x00 7F98 DM_CSR1 0x10 control/status register 1 DM debug module 0x00 7F99 DM_CSR2 0x00 control/status register 2 0x00 7F9A DM_ENFCTR DM enable function register 0xFF 0x00 7F9B to 0x00 7F9F Reserved area (5 byte) 1. Accessible by debug module only. DocID14771 Rev 15 43/121 50

Interrupt vector mapping STM8S105x4/6 7 Interrupt vector mapping Table 10. Interrupt mapping Wakeup from Wakeup from IRQ no. Source block Description Vector address halt mode active-halt mode - RESET Reset Yes Yes 0x00 8000 - TRAP Software interrupt - - 0x00 8004 External top level 0 TLI - - 0x00 8008 interrupt Auto wake up from 1 AWU - Yes 0x00 800C halt 2 CLK Clock controller - - 0x00 8010 Port A external 3 EXTI0 Yes(1) Yes(1) 0x00 8014 interrupts Port B external 4 EXTI1 Yes Yes 0x00 8018 interrupts Port C external 5 EXTI2 Yes Yes 0x00 801C interrupts Port D external 6 EXTI3 Yes Yes 0x00 8020 interrupts Port E external 7 EXTI4 Yes Yes 0x00 8024 interrupts 8 Reserved - - - 0x00 8028 9 Reserved - - - 0x00 802C 10 SPI End of transfer Yes Yes 0x00 8030 TIM1 update/ overflow/ 11 TIM1 - - 0x00 8034 underflow/ trigger/ break TIM1 capture/ 12 TIM1 - - 0x00 8038 compare TIM2 update/ 13 TIM2 - - 0x00 803C overflow TIM2 capture/ 14 TIM2 - - 0x00 8040 compare TIM3 update/ 15 TIM3 - - 0x00 8044 overflow TIM3 capture/ 16 TIM3 - - 0x00 8048 compare 17 Reserved - - - 0x00 804C 18 Reserved - - - 0x00 8050 19 I2C I2C interrupt Yes Yes 0x00 8054 44/121 DocID14771 Rev 15

STM8S105x4/6 Interrupt vector mapping Table 10. Interrupt mapping (continued) Wakeup from Wakeup from IRQ no. Source block Description Vector address halt mode active-halt mode 20 UART2 Tx complete - - 0x00 8058 Receive register 21 UART2 - - 0x00 805C DATA FULL ADC1 end of 22 ADC1 conversion/ analog - - 0x00 8060 watchdog interrupt TIM4 update/ 23 TIM4 - - 0x00 8064 overflow 24 Flash EOP/WR_PG_DIS - - 0x00 8068 0x00 806C to Reserved 0x00 807C 1. Except PA1. DocID14771 Rev 15 45/121 50

Option byte STM8S105x4/6 8 Option byte Option byte contain configurations for device hardware features as well as the memory protection of the device. They are stored in a dedicated block of the memory. Except for the ROP (read-out protection) byte, each option byte has to be stored twice, in a regular form (OPTx) and a complemented one (NOPTx) for redundancy. Option byte can be modified in ICP mode (via SWIM) by accessing the EEPROM address shown in the table below. Option byte can also be modified ‘on the fly’ by the application in IAP mode, except the ROP option that can only be modified in ICP mode (via SWIM). Refer to the STM8S Flash programming manual (PM0051) and STM8 SWIM communication protocol and debug module user manual (UM0470) for information on SWIM programming procedures. Table 11. Option byte Option Option bits Factory Option Addr. byte default name no. 7 6 5 4 3 2 1 0 setting Read-out 0x4800 protection OPT0 ROP [7:0] 0x00 (ROP) 0x4801 User boot OPT1 UBC [7:0] 0x00 code (UBC) 0x4802 NOPT1 NUBC [7:0] 0xFF 0x4803 Alternate OPT2 AFR7 AFR6 AFR5 AFR4 AFR3 AFR2 AFR1 AFR0 0x00 function 0x4804 remapping NOPT2 NAFR7 NAFR6 NAFR5 NAFR4 NAFR3 NAFR2 NAFR1 NAFR0 0xFF (AFR) HSI IWDG WWDG WWDG 0x4805h OPT3 Reserved LSI _ EN 0x00 TRIM _HW _HW _HALT Misc. option NHSI NLSI NIWDG NWWDG NWWG 0x4806 NOPT3 Reserved 0xFF TRIM _ EN _HW _HW _HALT CKAWU 0x4807 OPT4 Reserved EXT CLK PRS C1 PRS C0 0x00 SEL Clock option NEXT NCKA 0x4808 NOPT4 Reserved NPRSC1 NPR SC0 0xFF CLK WUSEL 0x4809 HSE clock OPT5 HSECNT [7:0] 0x00 startup 0x480A NOPT5 NHSECNT [7:0] 0xFF 0x480B OPT6 Reserved 0x00 Reserved 0x480C NOPT6 Reserved 0xFF 0x480D OPT7 Reserved 0x00 Reserved 0x480E NOPT7 Reserved 0xFF 0x480F - Reserved - Reserved 0x48FD - Reserved - 46/121 DocID14771 Rev 15

STM8S105x4/6 Option byte Table 11. Option byte (continued) Option Option bits Factory Option Addr. byte default name no. 7 6 5 4 3 2 1 0 setting 0x487E OPTBL BL[7:0] 0x00 Bootloader 0x487F NOPTBL NBL[7:0] 0xFF Table 12. Option byte description Option byte no. Description ROP[7:0] Memory readout protection (ROP) 0xAA: Enable readout protection (write access via SWIM protocol) OPT0 Note: Refer to the family reference manual (RM0016) section on Flash/EEPROM memory readout protection for details. UBC[7:0] User boot code area 0x00: no UBC, no write-protection 0x01: Page 0 to 1 defined as UBC, memory write-protected 0x02: Page 0 to 3 defined as UBC, memory write-protected 0x03: Page 0 to 4 defined as UBC, memory write-protected OPT1 ... 0x3E: Pages 0 to 63 defined as UBC, memory write-protected Other values: Reserved Note: Refer to the family reference manual (RM0016) section on Flash write protection for more details. AFR[7:0] Refer to the following table for the description of the alternate function OPT2 remapping description of bits [7:2]. HSITRIM: High speed internal clock trimming register size 0: 3-bit trimming supported in CLK_HSITRIMR register 1: 4-bit trimming supported in CLK_HSITRIMR register LSI_EN: Low speed internal clock enable 0: LSI clock is not available as CPU clock source 1: LSI clock is available as CPU clock source IWDG_HW: Independent watchdog OPT3 0: IWDG Independent watchdog activated by software 1: IWDG Independent watchdog activated by hardware WWDG_HW: Window watchdog activation 0: WWDG window watchdog activated by software 1: WWDG window watchdog activated by hardware WWDG_HALT: Window watchdog reset on halt 0: No reset generated on halt if WWDG active 1: Reset generated on halt if WWDG active DocID14771 Rev 15 47/121 50

Option byte STM8S105x4/6 Table 12. Option byte description (continued) Option byte no. Description EXTCLK: External clock selection 0: External crystal connected to OSCIN/OSCOUT 1: External clock signal on OSCIN CKAWUSEL: Auto wake-up unit/clock 0: LSI clock source selected for AWU OPT4 1: HSE clock with prescaler selected as clock source for AWU PRSC[1:0] AWU clock prescaler 0x: 16 MHz to 128 kHz prescaler 10: 8 MHz to 128 kHz prescaler 11: 4 MHz to 128 kHz prescaler HSECNT[7:0]: HSE crystal oscillator stabilization time 0x00: 2048 HSE cycles OPT5 0xB4: 128 HSE cycles 0xD2: 8 HSE cycles 0xE1: 0.5 HSE cycles OPT6 Reserved OPT7 Reserved BL[7:0]: Bootloader option byte For STM8S products, this option is checked by the boot ROM code after reset. Depending on the content of addresses 0x487E, 0x487F, and 0x8000 (reset vector), the CPU jumps to the bootloader or to the reset vector. Refer OPTBL to the UM0560 (STM8L/S bootloader manual) for more details. For STM8L products, the bootloader option bytes are on addresses 0xXXXX and 0xXXXX+1 (2 byte). These option bytes control whether the bootloader is active or not. For more details, refer to the UM0560 (STM8L/S bootloader manual) for more details. 48/121 DocID14771 Rev 15

STM8S105x4/6 Option byte 8.1 Alternate function remapping bits Table 13. Alternate function remapping bits [7:0] of OPT2 Option byte no. Description(1) AFR7 Alternate function remapping option 7 0: AFR7 remapping option inactive: Default alternate functions.(2) 1: Port D4 alternate function = BEEP. AFR6 Alternate function remapping option 6 0: AFR6 remapping option inactive: Default alternate function.(2) 1: Port B5 alternate function = I2C_SDA; port B4 alternate function = I2C_SCL. AFR5 Alternate function remapping option 5 0: AFR5 remapping option inactive: Default alternate function.(2) 1: Port B3 alternate function = TIM1_ETR; port B2 alternate function = TIM1_NCC3; port B1 alternate function = TIM1_CH2N; port B0 alternate function = TIM1_CH1N. AFR4 Alternate function remapping option 4 0: AFR4 remapping option inactive: Default alternate functions.(2) OPT2 1: Port D7 alternate function = TIM1_CH4. AFR3 Alternate function remapping option 3 0: AFR3 remapping option inactive: Default alternate function.(2) 1: Port D0 alternate function = TIM1_BKIN. AFR2 Alternate function remapping option 2 0: AFR2 remapping option inactive: Default alternate functions.(2) 1: Port D0 alternate function = CLK_CCO. Note: AFR2 option has priority over AFR3 if both are activated. AFR1 Alternate function remapping option 1 0: AFR1 remapping option inactive: Default alternate functions.(2) 1: Port A3 alternate function = TIM3_CH1; port D2 alternate function TIM2_CH3 AFR0 Alternate function remapping option 0 0: AFR0 remapping option inactive: Default alternate functions.(2) 1: Port D3 alternate function = ADC_ETR. 1. Do not use more than one remapping option in the same port. 2. Refer to STM8S105x4/6 pin descriptions. DocID14771 Rev 15 49/121 50

Unique ID STM8S105x4/6 9 Unique ID The devices feature a 96-bit unique device identifier which provides a reference number that is unique for any device and in any context. The 96 bits of the identifier can never be altered by the user. The unique device identifier can be read in single byte and may then be concatenated using a custom algorithm. The unique device identifier is ideally suited:  For use as serial numbers  For use as security keys to increase the code security in the program memory while using and combining this unique ID with software cryptographic primitives and protocols before programming the internal memory.  To activate secure boot processes Table 14. Unique ID registers (96 bits) Content Address Unique ID bits description 7 6 5 4 3 2 1 0 0x48CD X co-ordinate on U_ID[7:0] the wafer 0x48CE U_ID[15:8] 0x48CF Y co-ordinate on U_ID[23:16] 0x48D0 the wafer U_ID[31:24] 0x48D1 Wafer number U_ID[39:32] 0x48D2 U_ID[47:40] 0x48D3 U_ID[55:48] 0x48D4 U_ID[63:56] 0x48D5 Lot number U_ID[71:64] 0x48D6 U_ID[79:72] 0x48D7 U_ID[87:80] 0x48D8 U_ID[95:88] 50/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10 Electrical characteristics 10.1 Parameter conditions Unless otherwise specified, all voltages are referred to V . SS 10.1.1 Minimum and maximum values Unless otherwise specified the minimum and maximum values are guaranteed in the worst conditions of ambient temperature, supply voltage and frequencies by tests in production on 100% of the devices with an ambient temperature at T = 25 °C, and T = T (given by A A Amax the selected temperature range). Data based on characterization results, design simulation and/or technology characteristics are indicated in the table footnotes and are not tested in production. Based on characterization, the minimum and maximum values refer to sample tests and represent the mean value plus or minus three times the standard deviation (mean ± 3 Σ). 10.1.2 Typical values Unless otherwise specified, typical data are based on T = 25 °C, V = 5.0 V. They are A DD given only as design guidelines and are not tested. Typical ADC accuracy values are determined by characterization of a batch of samples from a standard diffusion lot over the full temperature range, where 95% of the devices have an error less than or equal to the value indicated (mean ± 2 Σ). 10.1.3 Typical curves Unless otherwise specified, all typical curves are given only as design guidelines and are not tested. 10.1.4 Typical current consumption For typical current consumption measurements, VDD, VDDIO and VDDA are connected together in the configuration shown in the following figure. Figure 8. Supply current measurement conditions (cid:24)(cid:3)(cid:57)(cid:3)(cid:82)(cid:85)(cid:3)(cid:22)(cid:17)(cid:22)(cid:3)(cid:57) (cid:36) (cid:57) (cid:39)(cid:39) (cid:57) (cid:39)(cid:39)(cid:36) (cid:57) (cid:39)(cid:39)(cid:44)(cid:50) (cid:57) (cid:54)(cid:54) (cid:57) (cid:54)(cid:54)(cid:36) (cid:57) (cid:54)(cid:54)(cid:44)(cid:50) (cid:48)(cid:54)(cid:89)(cid:22)(cid:27)(cid:22)(cid:19)(cid:28)(cid:57)(cid:20) DocID14771 Rev 15 51/121 90

Electrical characteristics STM8S105x4/6 10.1.5 Loading capacitor The loading conditions used for pin parameter measurement are shown in Figure 9. Figure 9. Pin loading conditions (cid:54)(cid:55)(cid:48)(cid:27)(cid:54)(cid:3)(cid:51)(cid:44)(cid:49) (cid:24)(cid:19)(cid:3)(cid:83)(cid:41) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:27)(cid:19)(cid:57)(cid:20) 10.1.6 Pin input voltage The input voltage measurement on a pin of the device is described in Figure 10. Figure 10. Pin input voltage (cid:54)(cid:55)(cid:48)(cid:27)(cid:54)(cid:3)(cid:51)(cid:44)(cid:49) (cid:57) (cid:44)(cid:49) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:27)(cid:20)(cid:57)(cid:20) 52/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10.2 Absolute maximum ratings Stresses above those listed as ‘absolute maximum ratings’ may cause permanent damage to the device. This is a stress rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Table 15. Voltage characteristics Symbol Ratings Min Max Unit V - V Supply voltage (including V V )(1) -0.3 6.5 V DDx SS DDA and DDIO Input voltage on true open drain pins (PE1, PE2)(2) VSS - 0.3 6.5 V V IN Input voltage on any other pin(2) VSS - 0.3 VDD + 0.3 |V - V | Variations between different power pins - 50 DDx DD mV |V - V | Variations between all the different ground pins - 50 SSx SS see Absolute maximum ratings V Electrostatic discharge voltage (electrical sensitivity) on ESD page 89 1. All power (V ) and ground (V ) pins must always be connected to the external power supply DD SS 2. I must never be exceeded. This is implicitly insured if V maximum is respected. If V maximum INJ(PIN) IN IN cannot be respected, the injection current must be limited externally to the I value. A positive INJ(PIN) injection is induced by V > V while a negative injection is induced by V < V . For true open-drain IN DD IN SS pads, there is no positive injection current, and the corresponding V maximum must always be respected IN Table 16. Current characteristics Symbol Ratings Max.(1) Unit I Total current into V power lines (source)(2) 100 mA VDD DD I Total current out of V ground lines (sink)(1) 80 VSS SS Output current sunk by any I/O and control pin 20 I IO Output current source by any I/Os and control pin -20 Total output current sourced (sum of all I/O and control pins) 200 for devices with two V pins(3) DDIO Total output current sourced (sum of all I/O and control pins) 100 for devices with one V pin(3) DDIO ΣI IO Total output current sunk (sum of all I/O and control pins) for 160 devices with two V pins(3) SSIO Total output current sunk (sum of all I/O and control pins) for 80 devices with one V pin(3) SSIO Injected current on NRST pin ±4 I (4) (5) Injected current on OSCIN pin ±4 INJ(PIN) Injected current on any other pin(6) ±4 ΣI (4) Total injected current (sum of all I/O and control pins)(6) ±20 INJ(PIN) 1. Data based on characterization results, not tested in production. 2. All power (V V ,V ) and ground (V V V ) pins must always be connected to the external DD, DDIO DDA SS, SSIO, SSA supply. DocID14771 Rev 15 53/121 90

Electrical characteristics STM8S105x4/6 3. I/O pins used simultaneously for high current source/sink must be uniformly spaced around the package between the VDDIO/VSSIO pins. 4. I must never be exceeded. This condition is implicitly insured if V maximum is respected. If V INJ(PIN) IN IN maximum cannot be respected, the injection current must be limited externally to the I value. A INJ(PIN) positive injection is induced by V > V while a negative injection is induced by V < V . For true open- IN DD IN SS drain pads, there is no positive injection current allowed and the corresponding V maximum must always IN be respected. 5. Negative injection disturbs the analog performance of the device. See note in Section: TIM2, TIM3 - 16-bit general purpose timers. 6. When several inputs are submitted to a current injection, the maximum ΣI is the absolute sum of the INJ(PIN) positive and negative injected currents (instantaneous values). These results are based on characterization with ΣI maximum current injection on four I/O port pins of the device. INJ(PIN) Table 17. Thermal characteristics Symbol Ratings Value Unit T Storage temperature range 65 to 150 STG °C T Maximum junction temperature 150 J 10.3 Operating conditions The device must be used in operating conditions that respect the parameters described in the table below. In addition, full account must be taken of all physical capacitor characteristics and tolerances. Table 18. General operating conditions Symbol Parameter Conditions Min Max Unit f Internal CPU clock frequency - 0 16 MHz CPU V V Standard operating voltage - 2.95 5.5 V DD/ DDIO C : capacitance of external EXT - 470 3300 nF capacitor V (1) CAP ESR of external capacitor - 0.3 Ω at 1 MHz(2) ESL of external capacitor - 15 nH 44- and 48-pin devices, with output on eight standard ports, two high sink - 443 ports and two open Power dissipation at TA = 85 °C drain ports PD(3) for suffix 6 or TA= 125° C for simultaneously(4) mW suffix 3 32-pin package, with output on eight standard ports and - 360 two high sink ports simultaneously(4) 54/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Table 18. General operating conditions (continued) Symbol Parameter Conditions Min Max Unit Ambient temperature for suffix Maximum power T -40 85 A 6 version dissipation Ambient temperature for suffix Maximum power TA 3 version dissipation -40 125 °C Suffix 6 version -40 105 T Junction temperature range J Suffix 3 version -40 130 1. Care should be taken when selecting the capacitor, due to its tolerance, as well as the parameter dependency on temperature, DC bias and frequency in addition to other factors. The parameter maximum value must be respected for the full application range. 2. This frequency of 1 MHz as a condition for V parameters is given by design of internal regulator. CAP 3. To calculate PDmax(TA), use the formula PDmax=(TJmax- TA)/JA (see Section 12: Thermal characteristics) with the value for TJmax given in the previous table and the value for JA given in Section 12: Thermal characteristics. 4. See Section 12: Thermal characteristics. Figure 11. f versus V CPUmax DD (cid:73) (cid:3)(cid:11)(cid:48)(cid:43)(cid:93)(cid:12) (cid:38)(cid:51)(cid:56) (cid:41)(cid:88)(cid:81)(cid:70)(cid:87)(cid:76)(cid:82)(cid:81)(cid:68)(cid:79)(cid:76)(cid:87)(cid:92)(cid:3) (cid:81)(cid:82)(cid:87)(cid:3) (cid:74)(cid:88)(cid:68)(cid:85)(cid:68)(cid:81)(cid:87)(cid:72)(cid:72)(cid:71)(cid:3)(cid:76)(cid:81)(cid:3) (cid:1005)(cid:1010) (cid:87)(cid:75)(cid:76)(cid:86)(cid:3)(cid:68)(cid:85)(cid:72)(cid:68) (cid:1005)(cid:1006) (cid:41)(cid:88)(cid:81)(cid:70)(cid:87)(cid:76)(cid:82)(cid:81)(cid:68)(cid:79)(cid:76)(cid:87)(cid:92)(cid:3)(cid:74)(cid:88)(cid:68)(cid:85)(cid:68)(cid:81)(cid:87)(cid:72)(cid:72)(cid:71) (cid:35)(cid:55) (cid:3)(cid:16)(cid:23)(cid:19)(cid:3)(cid:87)(cid:82)(cid:3)(cid:20)(cid:21)(cid:24)(cid:3)(cid:131)(cid:38)(cid:3)(cid:3) (cid:36) (cid:1012) (cid:1008) (cid:1004) (cid:21)(cid:17)(cid:28)(cid:24) (cid:23)(cid:17)(cid:19) (cid:24)(cid:17)(cid:19) (cid:24)(cid:17)(cid:24) (cid:54)(cid:88)(cid:83)(cid:83)(cid:79)(cid:92)(cid:3)(cid:89)(cid:82)(cid:79)(cid:87)(cid:68)(cid:74)(cid:72) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:25)(cid:28)(cid:57)(cid:20) Table 19. Operating conditions at power-up/power-down Symbol Parameter Conditions Min Typ Max Unit VDD rise time rate - 2(1) -  t µs/V VDD VDD fall time rate - 2(1) -  t Reset release delay V rising - - 1.7(1) ms TEMP DD DocID14771 Rev 15 55/121 90

Electrical characteristics STM8S105x4/6 Table 19. Operating conditions at power-up/power-down (continued) Symbol Parameter Conditions Min Typ Max Unit Power-on reset V - 2.65 2.8 2.95 IT+ threshold V Brown-out reset V - 2.58 2.65 2.88 IT- threshold Brown-out reset V - - 70 - mV HYS(BOR) hysteresis 1. Guaranteed by design, not tested in production. 56/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10.3.1 VCAP external capacitor The stabilization for the main regulator is achieved by connecting an external capacitor C to the V pin. C is specified in Table 18. Care should be taken to limit the series EXT CAP EXT inductance to less than 15 nH. Figure 12. External capacitor C EXT (cid:38) (cid:40)(cid:54)(cid:47) (cid:40)(cid:54)(cid:53) (cid:53)(cid:47)(cid:72)(cid:68)(cid:78) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:27)(cid:27)(cid:57)(cid:20) 1. ESR is the equivalent series resistance and ESL is the equivalent inductance. 10.3.2 Supply current characteristics The current consumption is measured as illustrated in Figure 10: Pin input voltage. Total current consumption in run mode Table 20. Total current consumption with code execution in run mode at V = 5 V DD Symbol Parameter Conditions Typ Max(1) Unit HSE crystal osc. (16 MHz) 3.2 - HSE user ext. clock f = f = 16 MHz 2.6 3.2 CPU MASTER (16 MHz) Supply HSI RC osc. (16 MHz) 2.5 3.2 current in Run mode, HSE user ext. clock I 1.6 2.2 mA DD(RUN) code f = f /128 = 125 kHz (16 MHz) CPU MASTER executed HSI RC osc. (16 MHz) 1.3 2.0 from RAM f = f /128 = CPU MASTER HSI RC osc. (16 MHz/8) 0.75 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.55 - HSE crystal osc. (16 MHz) 7.7 - HSE user ext. clock f = f = 16 MHz 7.0 8.0 CPU MASTER (16 MHz) Supply current in HSI RC osc. (16 MHz) 7.0 8.0 IDD(RUN) Rcoudne m ode, fCPU = fMASTER = 2 MHz HSI RC osc. (16 MHz/8)(2) 1.5 - mA executed f = f /128 = 125 kHz HSI RC osc. (16 MHz) 1.35 2.0 CPU MASTER from Flash f = f /128 = CPU MASTER HSI RC osc. (16 MHz/8) 0.75 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.6 - 1. Data based on characterization results, not tested in production. 2. Default clock configuration measured with all peripherals off. DocID14771 Rev 15 57/121 90

Electrical characteristics STM8S105x4/6 Table 2 1. Total current consumption with code execution in run mode at V = 3.3 V DD Symbol Parameter Conditions Typ Max(1) Unit HSE crystal osc. (16 MHz) 2.8 - HSE user ext. clock f = f = 16 MHz 2.6 3.2 CPU MASTER (16 MHz) Supply HSI RC osc. (16 MHz) 2.5 3.2 current in Run mode, HSE user ext. clock I 1.6 2.2 mA DD(RUN) code f = f /128 = 125 kHz (16 MHz) CPU MASTER executed HSI RC osc. (16 MHz) 1.3 2.0 from RAM f = f /128 = CPU MASTER HSI RC osc. (16 MHz/8) 0.75 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.55 - HSE crystal osc. (16 MHz) 7.3 - HSE user ext. clock f = f = 16 MHz 7.0 8.0 CPU MASTER (16 MHz) Supply current in HSI RC osc. (16 MHz) 7.0 8.0 IDD(RUN) Rcoudne m ode, fCPU = fMASTER = 2 MHz HSI RC osc. (16 MHz/8)(2) 1.5 - mA executed f = f /128 = 125 kHz HSI RC osc. (16 MHz) 1.35 2.0 CPU MASTER from Flash f = f /128 = CPU MASTER HSI RC osc. (16 MHz/8) 0.75 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.6 - 1. Data based on characterization results, not tested in production. 2. Default clock configuration measured with all peripherals off. Total current consumption in wait mode Table 22. Total current consumption in wait mode at V = 5 V DD Symbol Parameter Conditions Typ Max(1) Unit HSE crystal osc. (16 MHz) 2.15 - HSE user ext. clock f = f = 16 MHz 1.55 2.0 CPU MASTER (16 MHz) Supply HSI RC osc. (16 MHz) 1.5 1.9 I current in mA DD(WFI) f = f /128 = 125 kHz HSI RC osc. (16 MHz) 1.3 - wait mode CPU MASTER f = f /s128 = CPU MASTER HSI RC osc. (16 MHz/8)(2) 0.7 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.5 - 1. Data based on characterization results, not tested in production. 2. Default clock configuration measured with all peripherals off. 58/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Table 23. Total current consumption in wait mode at V = 3.3 V DD Symbol Parameter Conditions Typ Max(1) Unit HSE crystal osc. (16 MHz) 1.75 - HSE user ext. clock f = f = 16 MHz 1.55 2.0 CPU MASTER (16 MHz) Supply HSI RC osc. (16 MHz) 1.5 1.9 I current in mA DD(WFI) f = f /128 = 125 kHz HSI RC osc. (16 MHz) 1.3 - wait mode CPU MASTER f = f /s128 = CPU MASTER HSI RC osc. (16 MHz/8)(2) 0.7 - 15.625 kHz fCPU = fMASTER = 128 kHz LSI RC osc. (128 kHz) 0.5 - 1. Data based on characterization results, not tested in production. 2. Default clock configuration measured with all peripherals off. Total current consumption in active halt mode Table 24. Total current consumption in active halt mode at V = 5 V DD Conditions Main Max at Max at Symbol Parameter Typ Unit voltage Flash mode(3) Clock source 85 °C(1) 85 °C(1) regulator (MVR)(2) HSE crystal osc. Operating mode 1080 - - (16 MHz) Operating mode LSI RC osc. (128 kHz) 200 320 400 On Supply Power down HSE crystal osc. 1030 - - current in mode (16 MHz) I µA DD(AH) active halt Power down mode LSI RC osc. (128 kHz) 140 270 350 mode Operating mode LSI RC osc. (128 kHz) 68 120 220 Off Power down LSI RC osc. (128 kHz) 12 60 150 mode 1. Data based on characterization results, not tested in production. 2. Configured by the REGAH bit in the CLK_ICKR register. 3. Configured by the AHALT bit in the FLASH_CR1 register. DocID14771 Rev 15 59/121 90

Electrical characteristics STM8S105x4/6 Table 25. Total current consumption in active halt mode at V = 3.3 V DD Conditions Main Max at Max at Symbol Parameter Typ Unit voltage Flash mode(3) Clock source 85 °C(1) 85 °C(1) regulator (MVR)(2) HSE crystal osc. Operating mode 680 - - (16 MHz) Operating mode LSI RC osc. (128 kHz) 200 320 400 Supply On Power down HSE crystal osc. 630 - - current in mode (16 MHz) I µA DD(AH) active halt Power down mode LSI RC osc. (128 kHz) 140 270 350 mode Operating mode LSI RC osc. (128 kHz) 66 120 220 Off Power down LSI RC osc. (128 kHz) 10 60 150 mode 1. Data based on characterization results, not tested in production. 2. Configured by the REGAH bit in the CLK_ICKR register. 3. Configured by the AHALT bit in the FLASH_CR1 register. Total current consumption in halt mode Table 26. Total current consumption in halt mode at V = 5 V DD Max at Max at Symbol Parameter Conditions Typ Unit 85 °C(1) 85 °C(1) Flash in operating mode, HSI 62 90 150 Supply current in halt clock after wakeup I µA DD(H) mode Flash in power-down mode, 6.5 25 80 HSI clock after wakeup 1. Data based on characterization results, not tested in production. Table 27. Total current consumption in halt mode at V = 3.3 V DD Max at Max at Symbol Parameter Conditions Typ Unit 85 °C(1) 85 °C(1) Flash in operating mode, HSI 60 90 150 Supply current in halt clock after wakeup I µA DD(H) mode Flash in power-down mode, 4.5 20 80 HSI clock after wakeup 1. Data based on characterization results, not tested in production. 60/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Low power mode wakeup times Table 28. Wakeup times Symbol Parameter Conditions Typ Max(1) Unit Wakeup time from wait tWU(WFI) mode to run mode(2) 0 to 16 MHz - See note(3) Wakeup time from run t f = f = 16 MHz 0.56 - WU(WFI) mode(2) CPU MASTER Flash in Wakeup time active halt MVR voltage HSI (after tWU(AH) mode to run mode(2) regulator on(4) ompoedrea(t5in)g wakeup) 1(6) 2(6) Flash in Wakeup time active halt MVR voltage HSI (after tWU(AH) mode to run mode(2) regulator off(4) ompoedrea(t5in)g wakeup) 3(6) - µs Flash in Wakeup time active halt MVR voltage HSI (after tWU(AH) mode to run mode(2) regulator off(4) ompoedrea(t5in)g wakeup) 48(6) - Flash in Wakeup time active halt MVR voltage HSI (after tWU(AH) mode to run mode(2) regulator off(4) pmoowdeer(-5d)own wakeup) 50(6) - Wakeup time from halt t Flash in operating mode(5) 52 - WU(H) mode to run mode(2) Wakeup time from halt t Flash in power-down mode(5) 54 - WU(H) mode to run mode(2) 1. Data based on characterization results, not tested in production. 2. Measured from interrupt event to interrupt vector fetch 3. t = 2 x 1/f + 67 x 1/f WU(WFI) master CPU 4. Configured by the REGAH bit in the CLK_ICKR register. 5. Configured by the AHALT bit in the FLASH_CR1 register. 6. Plus 1 LSI clock depending on synchronization. Total current consumption and timing in forced reset state Table 29. Total current consumption and timing in forced reset state Symbol Parameter Conditions Typ Max(1) Unit Supply current in reset VDD = 5 V 500 - I µA DD(R) state(2) V = 3.3 V 400 - DD Reset pin release to t - - 150 µs RESETBL vector fetch 1. Data guaranteed by design, not tested in production. 2. Characterized with all I/Os tied to V . SS Current consumption of on-chip peripherals Subject to general operating conditions for V and T . DD A DocID14771 Rev 15 61/121 90

Electrical characteristics STM8S105x4/6 HSI internal RC/f = f = 16 MHz, V = 5 V CPU MASTER DD Table 30. Peripheral current consumption Symbol Parameter Typ Unit I TIM1 supply current(1) 230 DD(TIM1) I TIM2 supply current(1) 115 DD(TIM2) I TIM3 supply current(1) 90 DD(TIM3) I TIM4 supply current(1) 30 DD(TIM4) µA I UART2 supply current (2) 110 DD(UART2) I SPI supply current (2) 45 DD(SPI) I I2C supply current(2) 65 DD(I2C) I ADC1 supply current when converting(3) 955 DD(ADC1) 1. Data based on a differential I measurement between reset configuration and timer counter running at DD 16 MHz. No IC/OC programmed (no I/O pads toggling). Not tested in production. 2. Data based on a differential IDD measurement between the on-chip peripheral when kept under reset and not clocked and the on-chip peripheral when clocked and not kept under reset. No I/O pads toggling. Not tested in production. 3. Data based on a differential IDD measurement between reset configuration and continuous A/D conversions. Not tested in production. Current consumption curves The following figures show typical current consumption measured with code executing in RAM. Figure 13. Typ I vs. V HSE user external clock, f = 16 MHz DD(RUN) DD CPU 62/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Figure 14. Typ I vs. f HSE user external clock, V = 5 V DD(RUN) CPU DD Figure 15. Typ I vs. V HSI RC osc, f = 16 MHz DD(RUN) DD CPU DocID14771 Rev 15 63/121 90

Electrical characteristics STM8S105x4/6 Figure 16. Typ I vs. V HSE external clock, f = 16 MHz DD(WFI) DD CPU Figure 17. Typ I vs. f HSE external clock, V = 5 V DD(WFI) CPU DD 64/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Figure 18. Typ I vs. V HSI RC osc., f = 16 MHz DD(WFI) DD CPU DocID14771 Rev 15 65/121 90

Electrical characteristics STM8S105x4/6 10.3.3 External clock sources and timing characteristics HSE user external clock Subject to general operating conditions for V and T . DD A Table 31. HSE user external clock characteristics Symbol Parameter Conditions Min Max Unit User external clock f - 0 16 MHz HSE_ext source frequency OSCIN input pin high V (1) - 0.7 x V V + 0.3 V HSEH level voltage DD DD V OSCIN input pin low V (1) - V 0.3 x V HSEL level voltage SS DD OSCIN input leakage I V < V < V -1 +1 µA LEAK_HSE current SS IN DD 1. Data based on characterization results, not tested in production. Figure 19. HSE external clock source (cid:43)(cid:54)(cid:40)(cid:43) (cid:43)(cid:54)(cid:40)(cid:47) (cid:73)(cid:43)(cid:54)(cid:40) (cid:40)(cid:91)(cid:87)(cid:72)(cid:85)(cid:81)(cid:68)(cid:79)(cid:3)(cid:70)(cid:79)(cid:82)(cid:70)(cid:78) (cid:86)(cid:82)(cid:88)(cid:85)(cid:70)(cid:72) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49) (cid:54)(cid:55)(cid:48)(cid:27) (cid:48)(cid:54)(cid:22)(cid:25)(cid:23)(cid:27)(cid:28)(cid:57)(cid:21) 66/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics HSE crystal/ceramic resonator oscillator The HSE clock can be supplied with a 1 to 16 MHz crystal/ceramic resonator oscillator. All the information given in this paragraph is based on characterization results with specified typical external components. In the application, the resonator and the load capacitors have to be placed as close as possible to the oscillator pins in order to minimize output distortion and startup stabilization time. Refer to the crystal resonator manufacturer for more details (frequency, package, accuracy...). Table 32. HSE oscillator characteristics Symbol Parameter Conditions Min Typ Max Unit External high speed f - 1 - 16 MHz HSE oscillator frequency R Feedback resistor - - 220 - k F Recommended load C(1) - - - 20 pF capacitance(2) C = 20 pF 6 (start up) - - HSE oscillator power fOSC = 16 MHz 1.6 (stabilized)(3) I mA DD(HSE) consumption C = 10 pF 6 (start up) - - f = 16 MHz 1.2 (stabilized)(3) OSC Oscillator g - 5 - - mA/V m transconductance t (4) Startup time V is stabilized - 1 - ms SU(HSE) DD 1. C is approximately equivalent to 2 x crystal Cload. 2. The oscillator selection can be optimized in terms of supply current using a high quality resonator with small Rm value. Refer to crystal manufacturer for more details 3. Data based on characterization results, not tested in production. 4. t is the start-up time measured from the moment it is enabled (by software) to a stabilized 16 MHz oscillation is SU(HSE) reached. This value is measured for a standard crystal resonator and it can vary significantly with the crystal manufacturer. DocID14771 Rev 15 67/121 90

Electrical characteristics STM8S105x4/6 Figure 20. HSE oscillator circuit diagram (cid:53)(cid:80) (cid:73) (cid:3)(cid:87)(cid:82)(cid:3)(cid:3)(cid:70)(cid:82)(cid:85)(cid:72) (cid:43)(cid:54)(cid:40) (cid:38) (cid:47)(cid:80) (cid:50) (cid:53)(cid:41) (cid:38) (cid:38)(cid:80) (cid:47)(cid:20) (cid:50)(cid:54)(cid:38)(cid:44)(cid:49) (cid:74)(cid:80) (cid:53)(cid:72)(cid:86)(cid:82)(cid:81)(cid:68)(cid:87)(cid:82)(cid:85) (cid:38)(cid:82)(cid:81)(cid:86)(cid:88)(cid:80)(cid:83)(cid:87)(cid:76)(cid:82)(cid:81) (cid:70)(cid:82)(cid:81)(cid:87)(cid:85)(cid:82)(cid:79) (cid:53)(cid:72)(cid:86)(cid:82)(cid:81)(cid:68)(cid:87)(cid:82)(cid:85) (cid:50)(cid:54)(cid:38)(cid:50)(cid:56)(cid:55) (cid:38) (cid:47)(cid:21) (cid:54)(cid:55)(cid:48)(cid:27) (cid:48)(cid:54)(cid:22)(cid:25)(cid:23)(cid:28)(cid:19)(cid:57)(cid:22) HSE oscillator critical g equation m g = 2f 2R 2Co+C2 mcrit HSE m R : Notional resistance (see crystal specification) m L : Notional inductance (see crystal specification) m C : Notional capacitance (see crystal specification) m Co: Shunt capacitance (see crystal specification) C = C = C: Grounded external capacitance L1 L2 g »g m mcrit 68/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10.3.4 Internal clock sources and timing characteristics Subject to general operating conditions for V and T . DD A High speed internal RC oscillator (HSI) Table 33. HSI oscillator characteristics Symbol Parameter Conditions Min Typ Max Unit f Frequency - - 16 - MHz HSI User-trimmed with CLK_HSITRIMR register for Accuracy of HSI oscillator - - 1(2) given V and T DD A conditions(1) V V, ACCHS TAD D 25 °C(3) -1.0 - 1.0 % HSI oscillator accuracy V = 5 V,  DD -2.0 - 2.0 (factory calibrated) -25°C T  85 °C A 2.95 V V  5.5 V,  DD -3.0(3) - 3.0(3) -40°C T  125 °C A HSI oscillator wakeup t - - - 1.0(2) µs su(HSI) time including calibration HSI oscillator power I - - 170 250(3) µA DD(HSI) consumption 1. Refer to application note. 2. Guaranteed by design, not tested in production. 3. Data based on characterization results, not tested in production. Figure 21. Typical HSI accuracy @ V = 5 V vs 5 temperatures DD DocID14771 Rev 15 69/121 90

Electrical characteristics STM8S105x4/6 Figure 22. Typical HSI frequency variation vs V @ 4 temperatures DD 70/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Low speed internal RC oscillator (LSI) Subject to general operating conditions for V and T . DD A Table 34. LSI oscillator characteristics Symbol Parameter Conditions Min Typ Max Unit f Frequency - 110 128 150 kHz LSI t LSI oscillator wakeup time - - - 7(1) µs su(LSI) IDD(LSI) LSI oscillator power consumption - - 5 - µA 1. Guaranteed by design, not tested in production. Figure 23. Typical LSI frequency variation vs V @ 4 temperatures DD DocID14771 Rev 15 71/121 90

Electrical characteristics STM8S105x4/6 10.3.5 Memory characteristics RAM and hardware registers Table 35. RAM and hardware registers Symbol Parameter Conditions Min Unit V Data retention mode(1) Halt mode (or reset) V (2) V RM IT-max 1. Minimum supply voltage without losing data stored in RAM (in halt mode or under reset) or in hardware registers (only in halt mode). Guaranteed by design, not tested in production. 2. Refer to Section 10.3: Operating conditions for the value of V . IT-max Flash program memory/data EEPROM memory Table 36. Flash program memory/data EEPROM memory Symbol Parameter Conditions Min(1) Typ Max Unit Operating voltage  V f ≤ 16 MHz 2.95 - 5.5 V DD (all modes, execution/write/erase) CPU Standard programming time (including erase) for byte/word/block  - - 6 6.6 t (1 byte/4 byte/128 byte) prog ms Fast programming time for 1 block  - - 3 3.33 (128 byte) t Erase time for 1 block (128 byte) - - 3 3.33 erase Erase/write cycles  T = +85 °C 10k - - N (program memory)(2) A cycle RW Erase/write cycles (data memory)(2) T = +125 °C 300k 1M - A Data retention (program and data memory) after 10k erase/write cycles T = 55 °C 20 - - RET at T = +55 °C A t year RET Data retention (data memory) after 300k erase/write cycles at  T = 85 °C 1 - - RET T = +125°C A Supply current (Flash programming or I - - 2 - mA DD erasing for 1 to 128 byte) 1. Data based on characterization results, not tested in production. 2. The physical granularity of the memory is 4 byte, so cycling is performed on 4 byte even when a write/erase operation addresses a single byte. 72/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10.3.6 I/O port pin characteristics General characteristics Subject to general operating conditions for V and T unless otherwise specified. All DD A unused pins must be kept at a fixed voltage, using the output mode of the I/O for example or an external pull-up or pull-down resistor. Table 37. I/O static characteristics Symbol Parameter Conditions Min Typ Max Unit V Input low level voltage -0.3 V - 0.3 x V IL DD V V Input high level voltage V = 5 V 0.7 x V - V + 0.3 V IH DD DD DD V Hysteresis(1) - 700 - mV hys R Pull-up resistor V = 5 V, V = V 30 55 80 k pu DD IN SS Fast I/Os - - 35(2) Rise and fall time Load = 50 pF t , t ns R F (10% - 90%) Standard and high sink I/Os - - 125(2) Load = 50 pF Fast I/Os - - 20(2) Rise and fall time Load = 20 pF t , t ns R F (10% - 90%) Standard and high sink I/Os - - 50(2) Load = 20 pF Digital input leakage I V V V - - ±1(3) µA lkg current SS IN DD Analog input leakage I V V V - - ±250(3) nA lkg ana current SS IN DD Leakage current in I Injection current ±4 mA - - ±1(3) µA lkg(inj) adjacent I/O 1. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested in production. 2. Data guaranteed by design. 3. Data based on characterization results, not tested in production DocID14771 Rev 15 73/121 90

Electrical characteristics STM8S105x4/6 Figure 24. Typical V and V vs V @ 4 Figure 25. Typical pull-up current vs V @ 4 IL IH DD DD temperatures temperatures Figure 26. Typical pull-up resistance vs VDD @ 4 temperatures (cid:16)(cid:23)(cid:19)(cid:219)(cid:38) (cid:25)(cid:19) (cid:21)(cid:24)(cid:219)(cid:38) (cid:27)(cid:24)(cid:219)(cid:38) (cid:24)(cid:24) (cid:20)(cid:21)(cid:24)(cid:219)(cid:38) (cid:58)(cid:64) (cid:159) (cid:62) (cid:24)(cid:19) (cid:72)(cid:3) (cid:70) (cid:81) (cid:68) (cid:86)(cid:87) (cid:23)(cid:24) (cid:86)(cid:76) (cid:72) (cid:83)(cid:3)(cid:85) (cid:23)(cid:19) (cid:88) (cid:88)(cid:79)(cid:79)(cid:16) (cid:51) (cid:22)(cid:24) (cid:22)(cid:19) (cid:21)(cid:17)(cid:24) (cid:22) (cid:22)(cid:17)(cid:24) (cid:23) (cid:23)(cid:17)(cid:24) (cid:24) (cid:24)(cid:17)(cid:24) (cid:25) (cid:57)(cid:39)(cid:39)(cid:3)(cid:62)(cid:57)(cid:64) (cid:48)(cid:54)(cid:22)(cid:26)(cid:23)(cid:22)(cid:23)(cid:57)(cid:20) Table 38. Output driving current (standard ports) Symbol Parameter Conditions Min Max Unit Output low level with 8 IIO= 10 mA, - 2.0 pins sunk V = 5 V DD V OL Output low level with 4 IIO= 4 mA, - 1.0(1) pins sunk V = 3.3 V DD V Output high level with 8 IIO= 10 mA, 2.4 - pins sourced V = 5 V DD V OH Output high level with 4 IIO= 4 mA, 2.0(1) - pins sourced V = 3.3 V DD 1. Data based on characterization results, not tested in production 74/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Table 39. Output driving current (true open drain ports) Symbol Parameter Conditions Min Max Unit Output low level with 2 IIO= 10 mA, - 1.0 pins sunk V = 5 V DD V OL Output low level with 2 IIO= 10 mA, - 1.5(1) V pins sunk V = 3.3 V DD V Output high level with 2 IIO= 10 mA, - 2.0(1) OH pins sourced V = 5 V DD 1. Data based on characterization results, not tested in production Table 40. Output driving current (high sink ports) Symbol Parameter Conditions Min Max Unit Output low level with 8 IIO= 10 mA, - 0.9 pins sunk V = 5 V DD I = 10 mA, V IO - 1.1(1) OL Output low level with 4 VDD = 3.3 V pins sunk I = 20 mA, IO - 1.6(1) V = 5 V DD V Output high level with 8 IIO= 10 mA, 3.8 - pins sourced V = 5 V DD I = 10 mA, V IO 1.9(1) - OH Output high level with 4 VDD = 3.3 V pins sourced I = 20 mA, IO 2.9(1) - V = 5 V DD 1. Data based on characterization results, not tested in production. 10.3.7 Typical output level curves The following figures show the typical output level curves measured with the output on a single pin. Figure 27. Typ. V @ V = 3.3 V (standard Figure 28. Typ. V @ V = 5.0 V (standard OL DD OL DD ports) ports) DocID14771 Rev 15 75/121 90

Electrical characteristics STM8S105x4/6 Figure 29. Typ. V @ V = 3.3 V (true open Figure 30. Typ. V @ V = 5.0 V (true open OL DD OL DD drain ports) drain ports) Figure 31. Typ. V @ V = 3.3 V (high sink Figure 32. Typ. V @ V = 5.0 V (high sink OL DD OL DD ports) ports) 76/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Figure 33. Typ. V V @ V = 3.3 V Figure 34. Typ. V V @ V = 5.0 V DD - OH DD DD - OH DD (standard ports) (standard ports) Figure 35. Typ. V V @ V = 3.3 V (high Figure 36. Typ. V V @ V = 5.0 V (high DD - OH DD DD - OH DD sink ports) sink ports) DocID14771 Rev 15 77/121 90

Electrical characteristics STM8S105x4/6 10.3.8 Reset pin characteristics Subject to general operating conditions for V and T unless otherwise specified. DD A Table 41. NRST pin characteristics Symbol Parameter Conditions Min Typ Max Unit VIL(NRST) NRST input low level voltage(1) - -0.3 - 0.3 x VDD VIH(NRST) NRST input high level voltage(1) IOL= 2 mA 0.7 x VDD - VDD+ 0.3 V V NRST output low level voltage(1) I = 3 mA - - 0.5 OL(NRST) OL R NRST pull-up resistor(2) - 30 55 80 k PU(NRST) t NRST input filtered pulse(3) - - - 75 IFP(NRST) ns t NRST Input not filtered pulse(3) - 500 - - INFP(NRST) t NRST output pulse(3) - 20 - - µs OP(NRST) 1. Data based on characterization results, not tested in production. 2. The R pull-up equivalent resistor is based on a resistive transistor. PU 3. Data guaranteed by design, not tested in production. Figure 37. Typical NRST V and V vs V @ 4 temperatures IL IH DD 78/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Figure 38. Typical NRST pull-up resistance R vs V @ 4 temperatures PU DD Figure 39. Typical NRST pull-up current I vs V @ 4 temperatures pu DD The reset network shown in Figure 40 protects the device against parasitic resets. The user must ensure that the level on the NRST pin can go below VIL(NRST) max (see Table 41: NRST pin characteristics), otherwise the reset is not taken into account internally. For power consumption sensitive applications, the external reset capacitor value can be reduced to limit the charge/discharge current. If NRST signal is used to reset external circuitry, attention must be taken to the charge/discharge time of the external capacitor to fulfill the external devices reset timing conditions. Minimum recommended capacity is 100 nF. DocID14771 Rev 15 79/121 90

Electrical characteristics STM8S105x4/6 Figure 40. Recommended reset pin protection (cid:57) (cid:54)(cid:55)(cid:48)(cid:27) (cid:39)(cid:39) (cid:53) (cid:51)(cid:56) (cid:40)(cid:91)(cid:87)(cid:72)(cid:85)(cid:81)(cid:68)(cid:79)(cid:3) (cid:85)(cid:72)(cid:86)(cid:72)(cid:87)(cid:3) (cid:49)(cid:53)(cid:54)(cid:55) (cid:41)(cid:76)(cid:79)(cid:87)(cid:72)(cid:85) (cid:70)(cid:76)(cid:85)(cid:70)(cid:88)(cid:76)(cid:87)(cid:3)(cid:3) (cid:19)(cid:17)(cid:20)(cid:3)(cid:541)(cid:41) (cid:11)(cid:50)(cid:83)(cid:87)(cid:76)(cid:82)(cid:81)(cid:68)(cid:79)(cid:12) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:28)(cid:20)(cid:57)(cid:20) 10.3.9 SPI serial peripheral interface Unless otherwise specified, the parameters given in Table 42 are derived from tests performed under ambient temperature, f frequency and V supply voltage MASTER DD conditions. t = 1/f . MASTER MASTER Refer to I/O port characteristics for more details on the input/output alternate function characteristics (NSS, SCK, MOSI, MISO). Table 42. SPI characteristics Symbol Parameter Conditions(1) Min Max Unit Master mode 0 8 f SCK SPI clock frequency MHz 1/tc(SCK) Slave mode 0 6 80/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Table 42. SPI characteristics (continued) Symbol Parameter Conditions(1) Min Max Unit t ) SPI clock rise and fall Capacitive load:  r(SCK - 25 t time C = 30 pF f(SCK) t (2) NSS setup time Slave mode 4 * t - su(NSS) MASTER t (2) NSS hold time Slave mode 70 - h(NSS) t (2) w(SCKH) SCK high and low time Master mode t /2 - 15 t /2 + 15 t (2) SCK SCK w(SCKL) t (2) Master mode 5 - su(MI) Data input setup time tsu(SI)(2) Slave mode 5 - t (2) Master mode 7 - h(MI) Data input hold time th(SI)(2) Slave mode 10 - ns t (2)(3) Data output access time Slave mode - 3* t a(SO) MASTER t (2)(4) Data output disable time Slave mode 25 - dis(SO) Slave mode t (2) Data output valid time - 73 v(SO) (after enable edge) Master mode (after t (2) Data output valid time - 36 v(MO) enable edge) Slave mode (after t (2) 28 - h(SO) enable edge) Data output hold time Master mode (after t (2) 12 - h(MO) enable edge) 1. Parameters are given by selecting 10 MHz I/O output frequency. 2. Values based on design simulation and/or characterization results, and not tested in production. 3. Min time is for the minimum time to drive the output and the max time is for the maximum time to validate the data. 4. Min time is for the minimum time to invalidate the output and the max time is for the maximum time to put the data in Hi-Z. DocID14771 Rev 15 81/121 90

Electrical characteristics STM8S105x4/6 Figure 41. SPI timing diagram where slave mode and CPHA = 0 (cid:49)(cid:54)(cid:54)(cid:3)(cid:76)(cid:81)(cid:83)(cid:88)(cid:87) (cid:87)(cid:54)(cid:56)(cid:11)(cid:49)(cid:54)(cid:54)(cid:12) (cid:87)(cid:70)(cid:11)(cid:54)(cid:38)(cid:46)(cid:12) (cid:87)(cid:75)(cid:11)(cid:49)(cid:54)(cid:54)(cid:12) (cid:88)(cid:87) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:19) (cid:38)(cid:46)(cid:3)(cid:44)(cid:81)(cid:83) (cid:38)(cid:38)(cid:51)(cid:51)(cid:50)(cid:43)(cid:36)(cid:47)(cid:32)(cid:32)(cid:19)(cid:19) (cid:87)(cid:87)(cid:90)(cid:90)(cid:11)(cid:11)(cid:54)(cid:54)(cid:38)(cid:38)(cid:46)(cid:46)(cid:43)(cid:47)(cid:12)(cid:12) (cid:54) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:20) (cid:87)(cid:68)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:57)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:75)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:87)(cid:85)(cid:73)(cid:11)(cid:11)(cid:54)(cid:54)(cid:38)(cid:38)(cid:46)(cid:46)(cid:12)(cid:12) (cid:87)(cid:71)(cid:76)(cid:86)(cid:11)(cid:54)(cid:50)(cid:12) (cid:48)(cid:44)(cid:54)(cid:50) (cid:48)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:37)(cid:44)(cid:55)(cid:25)(cid:3)(cid:50)(cid:56)(cid:55) (cid:47)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:50)(cid:56)(cid:55)(cid:51)(cid:56)(cid:55) (cid:87)(cid:86)(cid:88)(cid:11)(cid:54)(cid:44)(cid:12) (cid:48)(cid:50)(cid:54)(cid:44) (cid:48)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:37)(cid:44)(cid:55)(cid:20)(cid:3)(cid:44)(cid:49) (cid:47)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:44)(cid:49)(cid:51)(cid:56)(cid:55) (cid:87)(cid:75)(cid:11)(cid:54)(cid:44)(cid:12) (cid:68)(cid:76)(cid:20)(cid:23)(cid:20)(cid:22)(cid:23)(cid:70) 1. Measurement points are at CMOS levels: 0.3 VDD and 0.7 VDD. Figure 42. SPI timing diagram where slave mode and CPHA = 1 (cid:49)(cid:54)(cid:54)(cid:3)(cid:76)(cid:81)(cid:83)(cid:88)(cid:87) (cid:87)(cid:54)(cid:56)(cid:11)(cid:49)(cid:54)(cid:54)(cid:12) (cid:87)(cid:70)(cid:11)(cid:54)(cid:38)(cid:46)(cid:12) (cid:87)(cid:75)(cid:11)(cid:49)(cid:54)(cid:54)(cid:12) (cid:88)(cid:87) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:20) (cid:83) (cid:81) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:19) (cid:38)(cid:46)(cid:3)(cid:76) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:20) (cid:87)(cid:87)(cid:90)(cid:90)(cid:11)(cid:11)(cid:54)(cid:54)(cid:38)(cid:38)(cid:46)(cid:46)(cid:47)(cid:43)(cid:12)(cid:12) (cid:54) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:20) (cid:87)(cid:89)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:75)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:85)(cid:11)(cid:54)(cid:38)(cid:46)(cid:12) (cid:87)(cid:71)(cid:76)(cid:86)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:68)(cid:11)(cid:54)(cid:50)(cid:12) (cid:87)(cid:73)(cid:11)(cid:54)(cid:38)(cid:46)(cid:12) (cid:48)(cid:44)(cid:54)(cid:50) (cid:48)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:37)(cid:44)(cid:55)(cid:25)(cid:3)(cid:50)(cid:56)(cid:55) (cid:47)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:50)(cid:56)(cid:55)(cid:51)(cid:56)(cid:55) (cid:87)(cid:86)(cid:88)(cid:11)(cid:54)(cid:44)(cid:12) (cid:87)(cid:75)(cid:11)(cid:54)(cid:44)(cid:12) (cid:48)(cid:50)(cid:54)(cid:44) (cid:44)(cid:49)(cid:51)(cid:56)(cid:55) (cid:48)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:37)(cid:44)(cid:55)(cid:3)(cid:20)(cid:3)(cid:44)(cid:49) (cid:47)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:68)(cid:76)(cid:20)(cid:23)(cid:20)(cid:22)(cid:24)(cid:69) 1. Measurement points are at CMOS levels: 0.3 VDD and 0.7 VDD. 82/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics Figure 43. SPI timing diagram - master mode (cid:43)(cid:76)(cid:74)(cid:75) (cid:49)(cid:54)(cid:54)(cid:3)(cid:76)(cid:81)(cid:83)(cid:88)(cid:87) (cid:87)(cid:70)(cid:11)(cid:54)(cid:38)(cid:46)(cid:12) (cid:88)(cid:87) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:19) (cid:83) (cid:88)(cid:87) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:19) (cid:50) (cid:46)(cid:3) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:19) (cid:54)(cid:38) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:20) (cid:88)(cid:87) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:20) (cid:83) (cid:88)(cid:87) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:19) (cid:50) (cid:46)(cid:3) (cid:38)(cid:51)(cid:43)(cid:36)(cid:32)(cid:20) (cid:54)(cid:38) (cid:38)(cid:51)(cid:50)(cid:47)(cid:32)(cid:20) (cid:87)(cid:86)(cid:88)(cid:11)(cid:48)(cid:44)(cid:12) (cid:87)(cid:87)(cid:90)(cid:90)(cid:11)(cid:11)(cid:54)(cid:54)(cid:38)(cid:38)(cid:46)(cid:46)(cid:43)(cid:47)(cid:12)(cid:12) (cid:87)(cid:87)(cid:85)(cid:73)(cid:11)(cid:11)(cid:54)(cid:54)(cid:38)(cid:38)(cid:46)(cid:46)(cid:12)(cid:12) (cid:48)(cid:44)(cid:54)(cid:50) (cid:48)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:37)(cid:44)(cid:55)(cid:25)(cid:3)(cid:44)(cid:49) (cid:47)(cid:54)(cid:37)(cid:3)(cid:44)(cid:49) (cid:44)(cid:49)(cid:51)(cid:56)(cid:55) (cid:87)(cid:75)(cid:11)(cid:48)(cid:44)(cid:12) (cid:48)(cid:50)(cid:54)(cid:44) (cid:48)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:37)(cid:44)(cid:55)(cid:20)(cid:3)(cid:50)(cid:56)(cid:55) (cid:47)(cid:54)(cid:37)(cid:3)(cid:50)(cid:56)(cid:55) (cid:50)(cid:56)(cid:55)(cid:51)(cid:56)(cid:55) (cid:87)(cid:89)(cid:11)(cid:48)(cid:50)(cid:12) (cid:87)(cid:75)(cid:11)(cid:48)(cid:50)(cid:12) (cid:68)(cid:76)(cid:20)(cid:23)(cid:20)(cid:22)(cid:25)(cid:70) 1. Measurement points are at CMOS levels: 0.3 VDD and 0.7 VDD. DocID14771 Rev 15 83/121 90

Electrical characteristics STM8S105x4/6 10.3.10 I2C interface characteristics Table 43. I2C characteristics Standard mode I2C Fast mode I2C(1) Symbol Parameter Unit Min(2) Max(2) Min(2) Max(2) t SCL clock low time 4.7 - 1.3 - w(SCLL) µs t SCL clock high time 4.0 - 0.6 - w(SCLH) t SDA setup time 250 - 100 - su(SDA) th(SDA) SDA data hold time 0(3) - 0(4) 900(3) tr(SDA) SDA and SCL rise time - 1000 - 300 ns t (V = 3 to 5.5 V) r(SCL) DD t SDA and SCL fall time f(SDA) - 300 - 300 t (V = 3 to 5.5 V) f(SCL) DD t START condition hold time 4.0 - 0.6 - h(STA) t Repeated START condition setup time 4.7 - 0.6 - su(STA) t STOP condition setup time 4.0 - 0.6 - µs su(STO) STOP to START condition time  t 4.7 - 1.3 - w(STO:STA) (bus free) C Capacitive load for each bus line - 400 - 400 pF b 1. f , must be at least 8 MHz to achieve max fast I2C speed (400 kHz) MASTER 2. Data based on standard I2C protocol requirement, not tested in production 3. The maximum hold time of the start condition has only to be met if the interface does not stretch the low time 4. The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the undefined region of the falling edge of SCL Figure 44. Typical application with I2C bus and timing diagram (cid:57) (cid:57) (cid:39)(cid:39) (cid:39)(cid:39) (cid:54)(cid:55)(cid:48)(cid:27) (cid:23)(cid:17)(cid:26)(cid:3)(cid:78)(cid:159)(cid:3) (cid:23)(cid:17)(cid:26)(cid:3)(cid:78)(cid:159)(cid:3) (cid:20)(cid:19)(cid:19)(cid:3)(cid:159)(cid:3) (cid:54)(cid:39)(cid:36) (cid:44)(cid:21)(cid:38)(cid:3)(cid:69)(cid:88)(cid:86) (cid:20)(cid:19)(cid:19)(cid:3)(cid:159)(cid:3) (cid:54)(cid:38)(cid:47) (cid:53)(cid:72)(cid:83)(cid:72)(cid:68)(cid:87)(cid:72)(cid:71) (cid:86)(cid:87)(cid:68)(cid:85)(cid:87) (cid:54)(cid:55)(cid:36)(cid:53)(cid:55) (cid:87)(cid:86)(cid:88)(cid:11)(cid:54)(cid:55)(cid:36)(cid:12) (cid:87)(cid:90)(cid:11)(cid:54)(cid:55)(cid:50)(cid:29)(cid:54)(cid:55)(cid:36)(cid:12) (cid:54)(cid:55)(cid:36)(cid:53)(cid:55) (cid:54)(cid:39)(cid:36) (cid:87)(cid:73)(cid:11)(cid:54)(cid:39)(cid:36)(cid:12) (cid:87)(cid:85)(cid:11)(cid:54)(cid:39)(cid:36)(cid:12) (cid:87)(cid:86)(cid:88)(cid:11)(cid:54)(cid:39)(cid:36)(cid:12) (cid:87)(cid:75)(cid:11)(cid:54)(cid:39)(cid:36)(cid:12) (cid:54)(cid:55)(cid:50)(cid:51) (cid:54)(cid:38)(cid:47) (cid:87)(cid:75)(cid:11)(cid:54)(cid:55)(cid:36)(cid:12) (cid:87)(cid:90)(cid:11)(cid:54)(cid:38)(cid:47)(cid:43)(cid:12) (cid:87)(cid:90)(cid:11)(cid:54)(cid:38)(cid:47)(cid:47)(cid:12) (cid:87)(cid:85)(cid:11)(cid:54)(cid:38)(cid:47)(cid:12) (cid:87)(cid:73)(cid:11)(cid:54)(cid:38)(cid:47)(cid:12) (cid:87)(cid:86)(cid:88)(cid:11)(cid:54)(cid:55)(cid:50)(cid:12) (cid:48)(cid:54)(cid:89)(cid:22)(cid:25)(cid:23)(cid:28)(cid:21)(cid:57)(cid:20) 84/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 10.3.11 10-bit ADC characteristics Subject to general operating conditions for V , f , and T unless otherwise DDA MASTER A specified. Table 44. ADC characteristics Symbol Parameter Conditions Min Typ Max Unit V = 2.95 to 5.5 V 1 - 4 DD f ADC clock frequency MHz ADC V = 4.5 to 5.5 V 1 - 6 DD V Analog supply - 3.0 - 5.5 DDA VREF+ Positive reference voltage - 2.75(1) - VDDA V VREF- Negative reference voltage - VSSA - 0.5(1) - VSSA - VDDA V Conversion voltage range(2) Devices with V AIN external VREF- - VREF+ V /V REF+ REF- Internal sample and hold C - - 3 - pF ADC capacitor f = 4 MHz - 0.75 - t (2) Minimum sampling time ADC µs S f = 6 MHz - 0.5 - ADC t Wakeup time from standby - - 7.0 - µs STAB f = 4 MHz 3.5 µs Minimum total conversion time ADC t (including sampling time, 10- f = 6 MHz 2.33 µs CONV ADC bit resolution) - 14 1/f ADC 1. Data guaranteed by design, not tested in production. 2. During the sample time, the sampling capacitance, C (3 pF max), can be charged/discharged by the AIN external source. The internal resistance of the analog source must allow the capacitance to reach its final voltage level within t After the end of the sample time t , changes of the analog input voltage have no S. S effect on the conversion result. Values for the sample clock t depend on programming. S DocID14771 Rev 15 85/121 90

Electrical characteristics STM8S105x4/6 Table 45. ADC accuracy with R < 10 k, V = 5 V AIN DDA Symbol Parameter Conditions Typ Max(1) Unit fADC = 2 MHz 1.0 2.5 |ET| Total unadjusted error(2) fADC = 4 MHz 1.4 3.0 fADC = 6 MHz 1.6 3.5 fADC = 2 MHz 0.6 2.0 |EO| Offset error(2) fADC = 4 MHz 1.1 2.5 fADC = 6 MHz 1.2 2.5 fADC = 2 MHz 0.2 2.0 |EG| Gain error(2) fADC = 4 MHz 0.6 2.5 LSB fADC = 6 MHz 0.8 2.5 fADC = 2 MHz 0.7 1.5 |ED| Differential linearity error(2) fADC = 4 MHz 0.7 1.5 fADC = 6 MHz 0.8 1.5 fADC = 2 MHz 0.6 1.5 |EL| Integral linearity error(2) fADC = 4 MHz 0.6 1.5 fADC = 6 MHz 0.6 1.5 1. Data based on characterization results, not tested in production. 2. ADC accuracy vs. negative injection current: Injecting negative current on any of the analog input pins should be avoided as this significantly reduces the accuracy of the conversion being performed on another analog input. It is recommended to add a Schottky diode (pin to ground) to standard analog pins which may potentially inject negative current. Any positive injection current within the limits specified for I and INJ(PIN) I in Section 10.3.6 does not affect the ADC accuracy. INJ(PIN) Table 46. ADC accuracy with R < 10 k, V = 3.3 V AIN DDA Symbol Parameter Conditions Typ Max(1) Unit fADC = 2 MHz 1.1 2.0 |E | Total unadjusted error(2) T fADC = 4 MHz 1.6 2.5 fADC = 2 MHz 0.7 1.5 |E | Offset error(2) O fADC = 4 MHz 1.3 2.0 fADC = 2 MHz 0.2 1.5 |E | Gain error(2) LSB G fADC = 4 MHz 0.5 2.0 fADC = 2 MHz 0.7 1.0 |E | Differential linearity error(2) D fADC = 4 MHz 0.7 1.0 fADC = 2 MHz 0.6 1.5 |E | Integral linearity error(2) L fADC = 4 MHz 0.6 1.5 1. Data based on characterization results, not tested in production. 86/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 2. ADC accuracy vs. negative injection current: Injecting negative current on any of the analog input pins should be avoided as this significantly reduces the accuracy of the conversion being performed on another analog input. It is recommended to add a Schottky diode (pin to ground) to standard analog pins which may potentially inject negative current. Any positive injection current within the limits specified for I and INJ(PIN) I in Section 10.3.6 does not affect the ADC accuracy. INJ(PIN) Figure 45. ADC accuracy characteristics EG 1023 V –V 1022 DDA SSA 1LSB =----------------------------------------- 1021 IDEAL 1024 (2) 7 ET (3) (1) 6 5 EO EL 4 3 ED 2 1 1LSBIDEAL 0 1 2 3 4 5 6 7 1021102210231024 VSSA VDDA 1. Example of an actual transfer curve 2. The ideal transfer curve 3. End point correlation line E = Total unadjusted error: maximum deviation between the actual and the ideal transfer curves. T E = Offset error: deviation between the first actual transition and the first ideal one. O E = Gain error: deviation between the last ideal transition and the last actual one. G E = Differential linearity error: maximum deviation between actual steps and the ideal one. D E = Integral linearity error: maximum deviation between any actual transition and the end point correlation L line. Figure 46. Typical application with ADC (cid:115)(cid:24)(cid:24) (cid:94)(cid:100)(cid:68)(cid:1012) (cid:57) (cid:55) (cid:57)(cid:36)(cid:44)(cid:49) (cid:53)(cid:36)(cid:44)(cid:49) (cid:4)(cid:47)(cid:69)(cid:454) (cid:19)(cid:17)(cid:25)(cid:3)(cid:57) (cid:20)(cid:19)(cid:16)(cid:69)(cid:76)(cid:87)(cid:3)(cid:36)(cid:18)(cid:39) (cid:70)(cid:82)(cid:81)(cid:89)(cid:72)(cid:85)(cid:86)(cid:76)(cid:82)(cid:81) (cid:57) (cid:38)(cid:36)(cid:44)(cid:49) (cid:19)(cid:17)(cid:55)(cid:25)(cid:3)(cid:57) (cid:1094)(cid:44)(cid:47)(cid:3)(cid:1005)(cid:3)(cid:1106)(cid:4) (cid:38)(cid:36)(cid:39)(cid:38) (cid:48)(cid:54)(cid:89)(cid:22)(cid:27)(cid:22)(cid:19)(cid:19)(cid:57)(cid:20) 1. Legend: R = external resistance, C = capacitors, C = internal sample and hold capacitor. AIN AIN samp DocID14771 Rev 15 87/121 90

Electrical characteristics STM8S105x4/6 10.3.12 EMC characteristics Susceptibility tests are performed on a sample basis during product characterization. Functional EMS (electromagnetic susceptibility) While executing a simple application (toggling 2 LEDs through I/O ports), the product is stressed by two electromagnetic events until a failure occurs (indicated by the LEDs).  ESD: Electrostatic discharge (positive and negative) is applied on all pins of the device until a functional disturbance occurs. This test conforms with the IEC 61000-4-2 standard.  FTB: A burst of fast transient voltage (positive and negative) is applied to V and V DD SS through a 100 pF capacitor, until a functional disturbance occurs. This test conforms with the IEC 61000-4-4 standard. A device reset allows normal operations to be resumed. The test results are given in the table below based on the EMS levels and classes defined in application note AN1709 (EMC design guide for STM microcontrollers). Designing hardened software to avoid noise problems EMC characterization and optimization are performed at component level with a typical application environment and simplified MCU software. It should be noted that good EMC performance is highly dependent on the user application and the software in particular. Therefore it is recommended that the user applies EMC software optimization and prequalification tests in relation with the EMC level requested for his application. Software recommendations The software flowchart must include the management of runaway conditions such as:  Corrupted program counter  Unexpected reset  Critical data corruption (control registers...) Prequalification trials Most of the common failures (unexpected reset and program counter corruption) can be recovered by applying a low state on the NRST pin or the oscillator pins for 1 second. To complete these trials, ESD stress can be applied directly on the device, over the range of specification values. When unexpected behavior is detected, the software can be hardened to prevent unrecoverable errors occurring. See application note AN1015 (Software techniques for improving microcontroller EMC performance). Table 47. EMS data Symbol Parameter Conditions Level/class V 5 V, T 25 °C,  DD A Voltage limits to be applied on any I/O pin VFESD to induce a functional disturbance fMASTER 16 MHz (HSI clock), 2/B(1) Conforms to IEC 1000-4-2 Fast transient voltage burst limits to be VDD 5 V, TA25 °C,  VEFTB applied through 100 pF on VDD and VSS fMASTER 16 MHz (HSI clock), 4/A(1) pins to induce a functional disturbance Conforms to IEC 1000-4-4 88/121 DocID14771 Rev 15

STM8S105x4/6 Electrical characteristics 1. Data obtained with HSI clock configuration, after applying the hardware recommendations described in AN2860 (EMC guidelines for STM8S microcontrollers). Electromagnetic interference (EMI) Based on a simple application running on the product (toggling 2 LEDs through the I/O ports), the product is monitored in terms of emission. This emission test is in line with the norm IEC 61967-2 which specifies the board and the loading of each pin. Table 48. EMI data Conditions Max f /f (1) Symbol Parameter HSE CPU Unit Monitored General conditions frequency band 8 MHz/ 8 MHz/ 8 MHz 16 MHz 0.1 MHz to 30 MHz 13 14 V 5 V,  DD Peak level TA 25 °C,  30 MHz to 130 MHz 23 19 dBµV S LQFP48 package. EMI Conforming to  130 MHz to 1 GHz -4.0 -4.0 IEC 61967-2 EMI level EMI level 2.0 1.5 - 1. Data based on characterization results, not tested in production. Absolute maximum ratings (electrical sensitivity) Based on two different tests (ESD, DLU and LU) using specific measurement methods, the product is stressed to determine its performance in terms of electrical sensitivity. For more details, refer to the application note AN1181. Electrostatic discharge (ESD) Electrostatic discharges (a positive then a negative pulse separated by 1 second) are applied to the pins of each sample according to each pin combination. The sample size depends on the number of supply pins in the device (3 parts x (n+1) supply pin). One model can be simulated: Human body model. This test conforms to the JESD22-A114A/A115A standard. For more details, refer to the application note AN1181. Table 49. ESD absolute maximum ratings Maximum Symbol Ratings Conditions Class Unit value(1) Electrostatic discharge voltage T 25°C, conforming to V A A 2000 ESD(HBM) (Human body model) JESD22-A114 V Electrostatic discharge voltage T  25°C, conforming to V A IV 1000 ESD(CDM) (Charge device model) SD22-C101 1. Data based on characterization results, not tested in production DocID14771 Rev 15 89/121 90

Electrical characteristics STM8S105x4/6 Static latch-up Two complementary static tests are required on 10 parts to assess the latch-up performance.  A supply overvoltage (applied to each power supply pin), and  A current injection (applied to each input, output and configurable I/O pin) are performed on each sample. This test conforms to the EIA/JESD 78 IC latch-up standard. For more details, refer to the application note AN1181. Table 50. Electrical sensitivities Symbol Parameter Conditions Class(1) T 25 °C A LU Static latch-up class T 85 °C A A T 125 °C A 1. Class description: A Class is an STMicroelectronics internal specification. All its limits are higher than the JEDEC specifications, that means when a device belongs to class A it exceeds the JEDEC standard. B class strictly covers all the JEDEC criteria (international standard). 90/121 DocID14771 Rev 15

STM8S105x4/6 Package information 11 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 11.1 LQFP48 package information Figure 47. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package outline (cid:51)(cid:37)(cid:33)(cid:52)(cid:41)(cid:46)(cid:39) (cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:35) (cid:18) (cid:33)(cid:33) (cid:17) (cid:33) (cid:67) (cid:16)(cid:14)(cid:18)(cid:21)(cid:0)(cid:77)(cid:77) (cid:39)(cid:33)(cid:53)(cid:39)(cid:37)(cid:0)(cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:67)(cid:67)(cid:67) (cid:35) (cid:36) (cid:43) (cid:17) (cid:44) (cid:33) (cid:36)(cid:17) (cid:44)(cid:17) (cid:36)(cid:19) (cid:19)(cid:22) (cid:18)(cid:21) (cid:19)(cid:23) (cid:18)(cid:20) (cid:66) (cid:37)(cid:19) (cid:37)(cid:17) (cid:37) (cid:20)(cid:24) (cid:17)(cid:19) (cid:48)(cid:41)(cid:46)(cid:0)(cid:17) (cid:41)(cid:36)(cid:37)(cid:46)(cid:52)(cid:41)(cid:38)(cid:41)(cid:35)(cid:33)(cid:52)(cid:41)(cid:47)(cid:46) (cid:17) (cid:17)(cid:18) (cid:69) (cid:21)(cid:34)(cid:63)(cid:45)(cid:37)(cid:63)(cid:54)(cid:18) 1. Drawing is not to scale. DocID14771 Rev 15 91/121 107

Package information STM8S105x4/6 Table 51. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package mechanical data millimeters inches(1) Symbol Min Typ Max Min Typ Max A - - 1.600 - - 0.0630 A1 0.050 - 0.150 0.0020 - 0.0059 A2 1.350 1.400 1.450 0.0531 0.0551 0.0571 b 0.170 0.220 0.270 0.0067 0.0087 0.0106 c 0.090 - 0.200 0.0035 - 0.0079 D 8.800 9.000 9.200 0.3465 0.3543 0.3622 D1 6.800 7.000 7.200 0.2677 0.2756 0.2835 D3 - 5.500 - - 0.2165 - E 8.800 9.000 9.200 0.3465 0.3543 0.3622 E1 6.800 7.000 7.200 0.2677 0.2756 0.2835 E3 - 5.500 - - 0.2165 - e - 0.500 - - 0.0197 - L 0.450 0.600 0.750 0.0177 0.0236 0.0295 L1 - 1.000 - - 0.0394 - k 0° 3.5° 7° 0° 3.5° 7° ccc - - 0.080 - - 0.0031 1. Values in inches are converted from mm and rounded to 4 decimal digits. 92/121 DocID14771 Rev 15

STM8S105x4/6 Package information Figure 48. LQFP48 - 48-pin, 7 x 7 mm low-profile quad flat package recommended footprint (cid:16)(cid:14)(cid:21)(cid:16) (cid:17)(cid:14)(cid:18)(cid:16) (cid:16)(cid:14)(cid:19)(cid:16) (cid:19)(cid:22) (cid:18)(cid:21) (cid:19)(cid:23) (cid:18)(cid:20) (cid:16)(cid:14)(cid:18)(cid:16) (cid:23)(cid:14)(cid:19)(cid:16) (cid:25)(cid:14)(cid:23)(cid:16) (cid:21)(cid:14)(cid:24)(cid:16) (cid:23)(cid:14)(cid:19)(cid:16) (cid:20)(cid:24) (cid:17)(cid:19) (cid:17) (cid:17)(cid:18) (cid:17)(cid:14)(cid:18)(cid:16) (cid:21)(cid:14)(cid:24)(cid:16) (cid:25)(cid:14)(cid:23)(cid:16) (cid:65)(cid:73)(cid:17)(cid:20)(cid:25)(cid:17)(cid:17)(cid:68) 1. Dimensions are expressed in millimeters. Device marking The following figure gives an example of topside marking orientation versus pin 1 identifier location. Figure 49. LQFP48 marking example (package top view) (cid:51)(cid:85)(cid:82)(cid:71)(cid:88)(cid:70)(cid:87)(cid:3) (cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81)(cid:11)(cid:20)(cid:12) (cid:52)(cid:53)(cid:46)(cid:25)(cid:52)(cid:18)(cid:17)(cid:22) (cid:36)(cid:23)(cid:53)(cid:20) (cid:39)(cid:68)(cid:87)(cid:72)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:54)(cid:87)(cid:68)(cid:81)(cid:71)(cid:68)(cid:85)(cid:71)(cid:3)(cid:54)(cid:55)(cid:3)(cid:79)(cid:82)(cid:74)(cid:82) (cid:58) (cid:56)(cid:56) (cid:53)(cid:72)(cid:89)(cid:76)(cid:86)(cid:76)(cid:82)(cid:81)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:51)(cid:76)(cid:81)(cid:3)(cid:20)(cid:3)(cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:51) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:21)(cid:27)(cid:57)(cid:20) 1. Parts marked as "ES", "E" or accompanied by an Engineering Sample notification letter, are not yet qualified and therefore not yet ready to be used in production and any consequences deriving from such DocID14771 Rev 15 93/121 107

Package information STM8S105x4/6 usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering samples in production. ST Quality has to be contacted prior to any decision to use these Engineering Samples to run qualification activity. 11.2 LQFP44 package information Figure 50. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package outline (cid:51)(cid:37)(cid:33)(cid:52)(cid:41)(cid:46)(cid:39) (cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:35) (cid:33) (cid:33)(cid:18) (cid:17) (cid:33) (cid:16)(cid:14)(cid:18)(cid:21)(cid:0)(cid:77)(cid:77) (cid:39)(cid:33)(cid:53)(cid:39)(cid:37)(cid:0)(cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:67)(cid:67)(cid:67) (cid:35) (cid:17) (cid:33) (cid:43) (cid:36) (cid:44) (cid:36)(cid:17) (cid:44)(cid:17) (cid:36)(cid:19) (cid:19)(cid:19) (cid:18)(cid:19) (cid:18)(cid:18) (cid:19)(cid:20) (cid:66) (cid:37)(cid:19) (cid:37)(cid:17) (cid:37) (cid:20)(cid:20) (cid:17)(cid:18) (cid:48)(cid:41)(cid:46)(cid:0)(cid:17) (cid:17) (cid:17)(cid:17) (cid:69) (cid:41)(cid:36)(cid:37)(cid:46)(cid:52)(cid:41)(cid:38)(cid:41)(cid:35)(cid:33)(cid:52)(cid:41)(cid:47)(cid:46) (cid:21)(cid:58)(cid:64)(cid:46)(cid:38) 1. Drawing is not to scale. 94/121 DocID14771 Rev 15

STM8S105x4/6 Package information Table 52. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package mechanical data millimeters inches(1) Symbol Min Typ Max Min Typ Max A - - 1.600 - - 0.0630 A1 0.050 - 0.150 0.0020 - 0.0059 A2 1.350 1.400 1.450 0.0531 0.0551 0.0571 b 0.300 0.370 0.450 0.0118 0.0146 0.0177 c 0.090 - 0.200 0.0035 - 0.0079 D 11.800 12.000 12.200 0.4646 0.4724 0.4803 D1 9.800 10.000 10.200 0.3858 0.3937 0.4016 D3 - 8.000 - - 0.3150 - E 11.800 12.000 12.200 0.4646 0.4724 0.4803 E1 9.800 10.000 10.200 0.3858 0.3937 0.4016 E3 - 8.000 - - 0.3150 - e - 0.800 - - 0.0315 - L 0.450 0.600 0.750 0.0177 0.0236 0.0295 L1 - 1.000 - - 0.0394 - k 0° 3.5° 7° 0° 3.5° 7° ccc - - 0.100 - - 0.0039 1. Values in inches are converted from mm and rounded to 4 decimal digits. DocID14771 Rev 15 95/121 107

Package information STM8S105x4/6 Figure 51. LQFP44 - 44-pin, 10 x 10 mm low-profile quad flat package recommended footprint (cid:24) (cid:23)(cid:23) (cid:22)(cid:23) (cid:19)(cid:17) (cid:19)(cid:17)(cid:27) (cid:20) (cid:22)(cid:22) (cid:26) (cid:21)(cid:17) (cid:20) (cid:22) (cid:19)(cid:17) (cid:20) (cid:20)(cid:19)(cid:17)(cid:22) (cid:20)(cid:20) (cid:21)(cid:22) (cid:20)(cid:21) (cid:21)(cid:21) (cid:20)(cid:17)(cid:21) (cid:27)(cid:17)(cid:24) (cid:20)(cid:21)(cid:17)(cid:26) (cid:23)(cid:60)(cid:66)(cid:41)(cid:51) 1. Dimensions are expressed in millimeters. Device marking The following figure gives an example of topside marking orientation versus pin 1 identifier location. 96/121 DocID14771 Rev 15

STM8S105x4/6 Package information Figure 52. LQFP44 marking example (package top view) (cid:51)(cid:85)(cid:82)(cid:71)(cid:88)(cid:70)(cid:87)(cid:3) (cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81)(cid:11)(cid:20)(cid:12) (cid:52)(cid:53)(cid:46)(cid:25)(cid:52)(cid:18)(cid:17)(cid:22) (cid:52)(cid:21)(cid:53)(cid:23)(cid:36) (cid:39)(cid:68)(cid:87)(cid:72)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:54)(cid:87)(cid:68)(cid:81)(cid:71)(cid:68)(cid:85)(cid:71)(cid:3)(cid:54)(cid:55)(cid:3)(cid:79)(cid:82)(cid:74)(cid:82) (cid:58) (cid:56)(cid:56) (cid:53)(cid:72)(cid:89)(cid:76)(cid:86)(cid:76)(cid:82)(cid:81)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:51)(cid:76)(cid:81)(cid:3)(cid:20)(cid:3)(cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:51) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:21)(cid:28)(cid:57)(cid:20) 1. Parts marked as "ES", "E" or accompanied by an Engineering Sample notification letter, are not yet qualified and therefore not yet ready to be used in production and any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering samples in production. ST Quality has to be contacted prior to any decision to use these Engineering Samples to run qualification activity. DocID14771 Rev 15 97/121 107

Package information STM8S105x4/6 11.3 LQFP32 package information Figure 53. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package outline (cid:51)(cid:37)(cid:33)(cid:52)(cid:41)(cid:46)(cid:39) (cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:35) (cid:18) (cid:33) (cid:33) (cid:17) (cid:67) (cid:33) (cid:16)(cid:14)(cid:18)(cid:21)(cid:0)(cid:77)(cid:77) (cid:39)(cid:33)(cid:53)(cid:39)(cid:37)(cid:0)(cid:48)(cid:44)(cid:33)(cid:46)(cid:37) (cid:67)(cid:67)(cid:67) (cid:35) (cid:43) (cid:36) (cid:17) (cid:44) (cid:33) (cid:36)(cid:17) (cid:44)(cid:17) (cid:36)(cid:19) (cid:18)(cid:20) (cid:17)(cid:23) (cid:18)(cid:21) (cid:17)(cid:22) (cid:66) (cid:37)(cid:19) (cid:37)(cid:17) (cid:37) (cid:19)(cid:18) (cid:25) (cid:48)(cid:41)(cid:46)(cid:0)(cid:17) (cid:41)(cid:36)(cid:37)(cid:46)(cid:52)(cid:41)(cid:38)(cid:41)(cid:35)(cid:33)(cid:52)(cid:41)(cid:47)(cid:46) (cid:17) (cid:24) (cid:69) (cid:22)(cid:55)(cid:64)(cid:46)(cid:38)(cid:64)(cid:55)(cid:19) 1. Drawing is not to scale. 98/121 DocID14771 Rev 15

STM8S105x4/6 Package information Table 53. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package mechanical data millimeters inches(1) Symbol Min Typ Max Min Typ Max A - - 1.600 - - 0.0630 A1 0.050 - 0.150 0.0020 - 0.0059 A2 1.350 1.400 1.450 0.0531 0.0551 0.0571 b 0.300 0.370 0.450 0.0118 0.0146 0.0177 c 0.090 - 0.200 0.0035 - 0.0079 D 8.800 9.000 9.200 0.3465 0.3543 0.3622 D1 6.800 7.000 7.200 0.2677 0.2756 0.2835 D3 - 5.600 - - 0.2205 - E 8.800 9.000 9.200 0.3465 0.3543 0.3622 E1 6.800 7.000 7.200 0.2677 0.2756 0.2835 E3 - 5.600 - - 0.2205 - e - 0.800 - - 0.0315 - L 0.450 0.600 0.750 0.0177 0.0236 0.0295 L1 - 1.000 - - 0.0394 - k 0° 3.5° 7° 0° 3.5° 7° ccc - - 0.100 - - 0.0039 1. Values in inches are converted from mm and rounded to 4 decimal digits. DocID14771 Rev 15 99/121 107

Package information STM8S105x4/6 Figure 54. LQFP32 - 32-pin, 7 x 7 mm low-profile quad flat package recommended footprint (cid:16)(cid:14)(cid:24)(cid:16) (cid:17)(cid:14)(cid:18)(cid:16) (cid:19)(cid:21) (cid:18)(cid:24) (cid:19)(cid:22) (cid:18)(cid:23) (cid:16)(cid:14)(cid:21)(cid:16) (cid:19)(cid:17)(cid:22)(cid:19) (cid:23)(cid:14)(cid:19)(cid:16) (cid:22)(cid:14)(cid:17)(cid:16) (cid:25)(cid:14)(cid:23)(cid:16) (cid:23)(cid:14)(cid:19)(cid:16) (cid:20)(cid:19) (cid:26) (cid:18) (cid:25) (cid:17)(cid:14)(cid:18)(cid:16) (cid:22)(cid:14)(cid:17)(cid:16) (cid:25)(cid:14)(cid:23)(cid:16) (cid:21)(cid:54)(cid:63)(cid:38)(cid:48)(cid:63)(cid:54)(cid:18) 1. Dimensions are expressed in millimeters. Device marking The following figure gives an example of topside marking orientation versus pin 1 identifier location. Figure 55. LQFP32 marking example (package top view) (cid:51)(cid:85)(cid:82)(cid:71)(cid:88)(cid:70)(cid:87)(cid:3) (cid:11)(cid:20)(cid:12) (cid:52)(cid:53)(cid:46)(cid:25)(cid:52)(cid:18)(cid:17) (cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81) (cid:22)(cid:44)(cid:21)(cid:53)(cid:20)(cid:36) (cid:39)(cid:68)(cid:87)(cid:72)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:54)(cid:87)(cid:68)(cid:81)(cid:71)(cid:68)(cid:85)(cid:71)(cid:3)(cid:54)(cid:55)(cid:3)(cid:79)(cid:82)(cid:74)(cid:82) (cid:58) (cid:56)(cid:56) (cid:53)(cid:72)(cid:89)(cid:76)(cid:86)(cid:76)(cid:82)(cid:81)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:51)(cid:76)(cid:81)(cid:3)(cid:20)(cid:3)(cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:51) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:22)(cid:19)(cid:57)(cid:20) 1. Parts marked as “ES”,”E” or accompanied by an Engineering Sample notification letter, are not yet qualified and therefore not yet ready to be used in production and any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering samples in production. ST Quality has to be contacted prior to any decision to use these Engineering samples to run qualification activity. 100/121 DocID14771 Rev 15

STM8S105x4/6 Package information 11.4 UFQFPN32 package information Figure 56. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat package outline (cid:39) (cid:36) (cid:71)(cid:71)(cid:71) (cid:38) (cid:72) (cid:36)(cid:20) (cid:36)(cid:21) (cid:38) (cid:54)(cid:40)(cid:36)(cid:55)(cid:44)(cid:49)(cid:42) (cid:51)(cid:47)(cid:36)(cid:49)(cid:40) (cid:39)(cid:20) (cid:69) (cid:72) (cid:40)(cid:21) (cid:69) (cid:40)(cid:20) (cid:40) (cid:20) (cid:47) (cid:22)(cid:21) (cid:39)(cid:21) (cid:47) (cid:51)(cid:44)(cid:49)(cid:3)(cid:20)(cid:3)(cid:44)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:33)(cid:16)(cid:34)(cid:24)(cid:63)(cid:45)(cid:37)(cid:63)(cid:54)(cid:18) 1. Drawing is not to scale. 2. All leads/pads should be soldered to the PCB to improve the lead/pad solder joint life. 3. There is an exposed die pad on the underside of the UFQFPN package. It is recommended to connect and solder this backside pad to PCB ground. 4. Dimensions are in millimeters. DocID14771 Rev 15 101/121 107

Package information STM8S105x4/6 Table 54. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat package mechanical data millimeters inches(1) Symbol Min Typ Max Min Typ Max A 0.500 0.550 0.600 0.0197 0.0217 0.0236 A1 0.000 0.020 0.050 0.0000 0.0008 0.0020 A3 - 0.152 - - 0.0060 - b 0.180 0.230 0.280 0.0071 0.0091 0.0110 D 4.900 5.000 5.100 0.1929 0.1969 0.2008 D1 3.400 3.500 3.600 0.1339 0.1378 0.1417 D2 3.400 3.500 3.600 0.1339 0.1378 0.1417 E 4.900 5.000 5.100 0.1929 0.1969 0.2008 E1 3.400 3.500 3.600 0.1339 0.1378 0.1417 E2 3.400 3.500 3.600 0.1339 0.1378 0.1417 e - 0.500 - - 0.0197 - L 0.300 0.400 0.500 0.0118 0.0157 0.0197 ddd - - 0.080 - - 0.0031 1. Values in inches are converted from mm and rounded to 4 decimal digits. Figure 57. UFQFPN32 - 32-pin, 5 x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat package recommended footprint (cid:24)(cid:17)(cid:22)(cid:19) (cid:22)(cid:17)(cid:27)(cid:19) (cid:19)(cid:17)(cid:25)(cid:19) (cid:20)(cid:19) (cid:19)(cid:22) (cid:18) (cid:19)(cid:21) (cid:22)(cid:17)(cid:23)(cid:24) (cid:24)(cid:17)(cid:22)(cid:19) (cid:22)(cid:17)(cid:27)(cid:19) (cid:22)(cid:17)(cid:23)(cid:24) (cid:19)(cid:17)(cid:24)(cid:19) (cid:19)(cid:17)(cid:22)(cid:19) (cid:25) (cid:18)(cid:24) (cid:26) (cid:18)(cid:23) (cid:19)(cid:17)(cid:26)(cid:24) (cid:22)(cid:17)(cid:27)(cid:19) (cid:36)(cid:19)(cid:37)(cid:27)(cid:66)(cid:41)(cid:51)(cid:66)(cid:57)(cid:21) 1. Dimensions are expressed in millimeters. 102/121 DocID14771 Rev 15

STM8S105x4/6 Package information Device marking The following figure gives an example of topside marking orientation versus pin 1 identifier location. Figure 58. UFQFPN32 marking example (package top view) (cid:51)(cid:85)(cid:82)(cid:71)(cid:88)(cid:70)(cid:87)(cid:3) (cid:11)(cid:20)(cid:12) (cid:25)(cid:52)(cid:18)(cid:17)(cid:22)(cid:44)(cid:23) (cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81) (cid:39)(cid:68)(cid:87)(cid:72)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:58) (cid:56)(cid:56) (cid:53)(cid:72)(cid:89)(cid:76)(cid:86)(cid:76)(cid:82)(cid:81)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:54)(cid:87)(cid:68)(cid:81)(cid:71)(cid:68)(cid:85)(cid:71)(cid:3)(cid:54)(cid:55)(cid:3)(cid:79)(cid:82)(cid:74)(cid:82) (cid:51) (cid:51)(cid:76)(cid:81)(cid:3)(cid:20)(cid:3)(cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:22)(cid:20)(cid:57)(cid:20) 1. Parts marked as “ES”,”E” or accompanied by an Engineering Sample notification letter, are not yet qualified and therefore not yet ready to be used in production and any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering samples in production. ST Quality has to be contacted prior to any decision to use these Engineering samples to run qualification activity. DocID14771 Rev 15 103/121 107

Package information STM8S105x4/6 11.5 SDIP32 package information Figure 59. SDIP32 package outline (cid:37) (cid:37)(cid:17) (cid:33)(cid:18) (cid:33) (cid:33)(cid:17) (cid:44) (cid:34)(cid:17) (cid:34) (cid:69) (cid:69)(cid:33) (cid:35) (cid:69)(cid:34) (cid:36)(cid:36) (cid:19)(cid:18) (cid:17)(cid:23) (cid:17) (cid:17)(cid:22) (cid:23)(cid:22)(cid:63)(cid:45)(cid:37) Table 55. SDIP32 package mechanical data mm inches(1) Dim. Min Typ Max Min Typ Max A 3.556 3.759 5.080 0.1400 0.1480 0.2000 A1 0.508 - - 0.0200 - - A2 3.048 3.556 4.572 0.1200 0.1400 0.1800 B 0.356 0.457 0.584 0.0140 0.0180 0.0230 B1 0.762 1.016 1.397 0.0300 0.0400 0.0550 C 0.203 0.254 0.356 0.0079 0.0100 0.0140 D 27.430 27.940 28.450 1.0799 1.1000 1.1201 E 9.906 10.410 11.050 0.3900 0.4098 0.4350 E1 7.620 8.890 9.398 0.3000 0.3500 0.3700 e - 1.778 - - 0.0700 - eA - 10.160 - - 0.4000 - 104/121 DocID14771 Rev 15

STM8S105x4/6 Package information Table 55. SDIP32 package mechanical data (continued) mm inches(1) Dim. Min Typ Max Min Typ Max eB - - 12.700 - - 0.5000 L 2.540 3.048 3.810 0.1000 0.1200 0.1500 1. Values in inches are converted from mm and rounded to 4 decimal digits Device marking The following figure gives an example of topside marking orientation versus pin 1 identifier location. Figure 60. SDIP32 marking example (package top view) (cid:51)(cid:85)(cid:82)(cid:71)(cid:88)(cid:70)(cid:87)(cid:3) (cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81)(cid:11)(cid:20)(cid:12) (cid:53)(cid:72)(cid:89)(cid:76)(cid:86)(cid:76)(cid:82)(cid:81)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:52)(cid:53)(cid:46)(cid:25)(cid:52)(cid:18)(cid:17)(cid:22)(cid:44)(cid:21)(cid:35)(cid:23) (cid:51)(cid:76)(cid:81)(cid:3)(cid:20)(cid:3)(cid:76)(cid:71)(cid:72)(cid:81)(cid:87)(cid:76)(cid:73)(cid:76)(cid:72)(cid:85) (cid:51) (cid:39)(cid:68)(cid:87)(cid:72)(cid:3)(cid:70)(cid:82)(cid:71)(cid:72) (cid:54)(cid:87)(cid:68)(cid:81)(cid:71)(cid:68)(cid:85)(cid:71)(cid:3)(cid:54)(cid:55)(cid:3)(cid:79)(cid:82)(cid:74)(cid:82) (cid:58)(cid:56)(cid:56) (cid:48)(cid:54)(cid:22)(cid:27)(cid:22)(cid:22)(cid:21)(cid:57)(cid:20) 1. Parts marked as “ES”,”E” or accompanied by an Engineering Sample notification letter, are not yet qualified and therefore not yet ready to be used in production and any consequences deriving from such usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering samples in production. ST Quality has to be contacted prior to any decision to use these Engineering samples to run qualification activity. DocID14771 Rev 15 105/121 107

Thermal characteristics STM8S105x4/6 12 Thermal characteristics The maximum junction temperature (T ) of the device must never exceed the values Jmax specified in Table 18: General operating conditions, otherwise the functionality of the device cannot be guaranteed. The maximum junction temperature T , in degrees Celsius, may be calculated using the Jmax following equation: T = T + (P x  ) Jmax Amax Dmax JA Where:  T is the maximum ambient temperature in C Amax   is the package junction-to-ambient thermal resistance in C/W JA  P is the sum of P and P (P = P + P ) Dmax INTmax I/Omax Dmax INTmax I/Omax  P is the product of I andV , expressed in Watts. This is the maximum chip INTmax DD DD internal power.  P represents the maximum power dissipation on output pins I/Omax Where: P =(V *I ) + ((V -V )*I ),  I/Omax OL OL DD OH OH taking into account the actual V /I andV /I of the I/Os at low and high level in OL OL OH OH the application. Table 56. Thermal characteristics(1) Symbol Parameter Value Unit Thermal resistance junction-ambient LQFP48 - 7x7 mm Thermal resistance junction-ambient LQFP44 - 10x10 mm Thermal resistance junction-ambient  °C/W JA LQFP32 - 7x7 mm Thermal resistance junction-ambient UFQFPN32 - 5x5 mm Thermal resistance junction-ambient SDIP32 - 400 ml 1. Thermal resistances are based on JEDEC JESD51-2 with 4-layer PCB in a natural convection environment. 12.1 Reference document JESD51-2 integrated circuits thermal test method environment conditions - natural convection (still air). Available from www.jedec.org. 106/121 DocID14771 Rev 15

STM8S105x4/6 Thermal characteristics 12.2 Selecting the product temperature range When ordering the microcontroller, the temperature range is specified in the order code (see Section 13: Ordering information). The following example shows how to calculate the temperature range needed for a given application. Assuming the following application conditions: Maximum ambient temperature T = 82°C (measured according to JESD51-2), Amax I = 15 mA, V = 5.5 V DDmax DD Maximum 8 standard I/Os used at the same time in output at low level with I = 10 mA, V = 2 V OL OL Maximum 4 high sink I/Os used at the same time in output at low level with I = 20 mA, V = 1.5 V OL OL Maximum 2 true open drain I/Os used at the same time in output at low level with I = 20 mA, V = 2 V OL OL P =15 mA x 5.5 V= 82.5 mW INTmax P = (10 mA x 2 V x 8) + (20 mA x 2 V x 2) + (20 mA x 1.5 V x 4) = 360 mW IOmax This gives: P = 82.5 mW and P = 360 mW: INTmax IOmax P =82.5 mW +360 mW Dmax Thus: P = 443 mW. Dmax Using the values obtained in Table 56: Thermal characteristics T is calculated as Jmax follows: For LQFP32 60°C/W T = 82°C + (60°C/W x 443 mW) = 82°C + 27°C = 109 °C Jmax This is within the range of the suffix 6 version parts (-40 < T < 131°C). J Parts must be ordered at least with the temperature range suffix 3. DocID14771 Rev 15 107/121 107

Ordering information STM8S105x4/6 13 Ordering information Figure 61. STM8S105x4/6 access line ordering information scheme(1) Example: STM8 S 105 K 4 T 6 TR Product class STM8 microcontroller Family type S = Standard Sub-family type 10x = Access line 105 sub-family Pin count K = 32 pins S = 44 pins C = 48 pins Program memory size 4 = 16 Kbyte 6 = 32 Kbyte Package type B = SDIP T = LQFP U = UFQFPN Temperature range 3 = -40 to 125 °C 6 = -40 to 85 °C Package pitch/thickness Blank = 0.5 mm C = 0.8 mm A = 0.55 mm thickness for UFQFPN32 Packing No character = Tray or tube TR = Tape and reel 1. A dedicated ordering information scheme will be released if, in the future, memory programming service (FastROM) is required The letter “P” will be added after STM8S. Three unique letters identifying the customer application code will also be visible in the codification. Example: STM8SP103K3MACTR. For a list of available options (for example memory size, package) and orderable part numbers or for further information on any aspect of this device, please go to www.st.com or contact the nearest ST Sales Office. 108/121 DocID14771 Rev 15

STM8S105x4/6 Ordering information 13.1 STM8S105 FASTROM microcontroller option list (last update: September 2010) Customer ............................................................................... Address ............................................................................... Contact ............................................................................... Phone number ............................................................................... FASTROM code reference(1) ............................................................................... 1. The FASTROM code name is assigned by STMicroelectronics. The preferable format for programing code is .Hex (.s19 is accepted) If data EEPROM programing is required, a separate file must be sent with the requested data. Note: See the option byte section in the datasheet for authorized option byte combinations and a detailed explanation. Device type/memory size/package (check only one option) FASTROM device 16 Kbyte 32 Kbyte LQFP32 [ ] STM8S105K4 [ ] STM8S105K6 LQFP44 [ ] STM8S105S4 [ ] STM8S105S6 LQFP48 [ ] STM8S105C4 [ ] STM8S105C6 Conditioning (check only one option) [ ] Tape and reel or [ ] Tray Special marking (check only one option) [ ] No [ ] Yes Authorized characters are letters, digits, '.', '-', '/' and spaces only. Maximum character counts are: LQFP32: 2 lines of 7 characters max: “_ _ _ _ _ _ _” and “_ _ _ _ _ _ _” LQFP44: 2 lines of 7 characters max: “_ _ _ _ _ _ _” and “_ _ _ _ _ _ _” LQFP48: 2 lines of 8 characters max: “_ _ _ _ _ _ _ _” and “_ _ _ _ _ _ _ _” Temperature range [ ] -40°C to +85°C or [ ] -40°C to +125°C DocID14771 Rev 15 109/121 115

Ordering information STM8S105x4/6 Padding value for unused program memory (check only one option) [ ] 0xFF Fixed value [ ] 0x83 TRAP instruction code [ ] 0x75 Illegal opcode (causes a reset when executed) OTP0 memory readout protection (check only one option) [ ] Disable or [ ] Enable OTP1 user boot code area (UBC) 0x(_ _) fill in the hexadecimal value, referring to the datasheet and the binary format below: [ ] 0: Reset UBC, bit0 [ ] 1: Set [ ] 0: Reset UBC, bit1 [ ] 1: Set [ ] 0: Reset UBC, bit2 [ ] 1: Set [ ] 0: Reset UBC, bit3 [ ] 1: Set [ ] 0: Reset UBC, bit4 [ ] 1: Set [ ] 0: Reset UBC, bit5 [ ] 1: Set OTP2 alternate function remapping [ ] 0: Remapping option inactive. Default alternate functions AFR0 used. Refer to pinout description (check only one option) [ ] 1: Port D3 alternate function = ADC_ETR [ ] 0: Remapping option inactive. Default alternate functions AFR1 used. Refer to pinout description (check only one option) [ ] 1: Port A3 alternate function = TIM3_CH1, port D2 alternate function = TIM2_CH3 [ ] 0: Remapping option inactive. Default alternate functions used. Refer to pinout description AFR2 [ ] 1: Port D0 alternate function = CLK_CCO (check only one option) Note: if both AFR2 and AFR3 are activated, AFR2 option has priority over AFR3. [ ] 0: Remapping option inactive. Default alternate functions AFR3 used. Refer to pinout description (check only one option) [ ] 1: Port D0 alternate function = TIM1_BKIN 110/121 DocID14771 Rev 15

STM8S105x4/6 Ordering information [ ] 0: Remapping option inactive. Default alternate functions AFR4 used. Refer to pinout description (check only one option) [ ] 1: Port D7 alternate function = TIM1_CH4 [ ] 0: Remapping option inactive. Default alternate functions used. Refer to pinout description AFR5 [ ] 1: Port B3 alternate function = TIM1_ETR, port B2 alternate (check only one option) function = TIM1_NCC3, port B1 alternate function = TIM1_CH2N, port B0 alternate function = TIM1_CH1N. [ ] 0: Remapping option inactive. Default alternate functions AFR6 used. Refer to pinout description (check only one option) [ ] 1: Port B5 alternate function = I2C_SDA, port B4 alternate function = I2C_SCL [ ] 0: Remapping option inactive. Default alternate functions AFR6 used. Refer to pinout description (check only one option) [ ] 1: Port D4 alternate function = BEEP. OPT3 watchdog WWDG_HALT [ ] 0: No reset generated on halt if WWDG active[ (check only one option) [ ] 1: Reset generated on halt if WWDG active WWDG_HW [ ] 0: WWDG activated by software (check only one option) [ ] 1: WWDG activated by hardware IWDG_HW [ ] 0: IWDG activated by software (check only one option) [ ] 1: IWDG activated by hardware LSI_EN [ ] 0: LSI clock is not available as CPU clock source (check only one option) [ ] 1: LSI clock is available as CPU clock source HSITRIM [ ] 0: 3-bit trimming supported in CLK_HSITRIMR register (check only one option) [ ] 1: 4-bit trimming supported in CLK_HSITRIMR register OPT4 watchdog [ ] for 16 MHz to 128 kHz prescaler PRSC [ ] for 8 MHz to 128 kHz prescaler (check only one option) [ ] for 4 MHz to 128 kHz prescaler CKAWUSEL [ ] LSI clock source selected for AWU (check only one option) [ ] HSE clock with prescaler selected as clock source for AWU EXTCLK [ ] External crystal connected to OSCIN/OSCOUT (check only one option) [ ] External signal on OSCIN DocID14771 Rev 15 111/121 115

Ordering information STM8S105x4/6 OPT5 crystal oscillator stabilization HSECNT (check only one option) [ ] 2048 HSE cycles [ ] 128 HSE cycles [ ] 8 HSE cycles [ ] 0.5 HSE cycles OTP6 is reserved OTP7 is reserved OTPBL bootloader option byte (check only one option) Refer to the UM0560 (STM8L/S bootloader manual) for more details. [ ] Disable (00h) [ ] Enable (55h) Comments: ......................................................................................... Supply operating range in the application: ......................................................................................... Notes: ......................................................................................... Date: ......................................................................................... Signature: ......................................................................................... 112/121 DocID14771 Rev 15

STM8S105x4/6 STM8 development tools 14 STM8 development tools Development tools for the STM8 microcontrollers include the full-featured STice emulation system supported by a complete software tool package including C compiler, assembler and integrated development environment with high-level language debugger. In addition, the STM8 is to be supported by a complete range of tools including starter kits, evaluation boards and a low-cost in-circuit debugger/programmer. 14.1 Emulation and in-circuit debugging tools The STice emulation system offers a complete range of emulation and in-circuit debugging features on a platform that is designed for versatility and cost-effectiveness. In addition, STM8 application development is supported by a low-cost in-circuit debugger/programmer. The STice is the fourth generation of full featured emulators from STMicroelectronics. It offers new advanced debugging capabilities including profiling and coverage to help detect and eliminate bottlenecks in application execution and dead code when fine tuning an application. In addition, STice offers in-circuit debugging and programming of STM8 microcontrollers via the STM8 single wire interface module (SWIM), which allows non-intrusive debugging of an application while it runs on the target microcontroller. For improved cost effectiveness, STice is based on a modular design that allows you to order exactly what you need to meet your development requirements and to adapt your emulation system to support existing and future ST microcontrollers. 14.1.1 STice key features  Occurrence and time profiling and code coverage (new features),  Advanced breakpoints with up to 4 levels of conditions,  Data breakpoints,  Program and data trace recording up to 128 KB records,  Read/write on the fly of memory during emulation,  In-circuit debugging/programming via SWIM protocol,  8-bit probe analyzer,  1 input and 2 output triggers,  Power supply follower managing application voltages between 1.62 to 5.5 V,  Modularity that allows you to specify the components you need to meet your development requirements and adapt to future requirements.  Supported by free software tools that include integrated development environment (IDE), programming software interface and assembler for STM8. DocID14771 Rev 15 113/121 115

STM8 development tools STM8S105x4/6 14.2 Software tools STM8 development tools are supported by a complete, free software package from STMicroelectronics that includes ST Visual Develop (STVD) IDE and the ST Visual Programmer (STVP) software interface. STVD provides seamless integration of the Cosmic and Raisonance C compilers for STM8, which are available in a free version that outputs up to 16 Kbytes of code. 14.2.1 STM8 toolset The STM8 toolset with STVD integrated development environment and STVP programming software is available for free download at www.st.com. This package includes: ST visual develop Full-featured integrated development environment from STMicroelectronics, featuring:  Seamless integration of C and ASM toolsets  Full-featured debugger  Project management  Syntax highlighting editor  Integrated programming interface  Support of advanced emulation features for STice such as code profiling and coverage ST visual programmer (STVP) Easy-to-use, unlimited graphical interface allowing read, write and verification of the STM8 Flash program memory, data EEPROM and option bytes. STVP also offers project mode for the saving of programming configurations and the automation of programming sequences. 14.2.2 C and assembly toolchains Control of C and assembly toolchains is seamlessly integrated into the STVD integrated development environment, making it possible to configure and control the building of user applications directly from an easy-to-use graphical interface. Available toolchains include: C compiler for STM8 Available in a free version that outputs up to 16 Kbytes of code. For more information, see www.cosmic-software.com. STM8 assembler linker Free assembly toolchain included in the STVD toolset, used to assemble and link the user application source code. 114/121 DocID14771 Rev 15

STM8S105x4/6 STM8 development tools 14.3 Programming tools During the development cycle, STice provides in-circuit programming of the STM8 Flash microcontroller on the application board via the SWIM protocol. Additional tools include a low-cost in-circuit programmer as well as ST socket boards, which provide dedicated programming platforms with sockets for the STM8 programming. For production environments, programmers will include a complete range of gang and automated programming solutions from third-party tool developers already supplying programmers for the STM8 family. DocID14771 Rev 15 115/121 115

Revision history STM8S105x4/6 15 Revision history Table 57. Document revision history Date Revision Changes 05-Jun-2018 1 Initial release. Corrected the number of high sink outputs to 9 in I/Os in Features. 23-Jun-2018 2 Updated part numbers in STM8S105xx access line features. Updated the part numbers in STM8S105xx access line features. 12-Aug-2008 3 USART renamed UART1, LINUART renamed UART2. Added Table: Pin-to-pin comparison of pin 7 to 12 in 32- pin access line devices. Removed STM8S102xx and STM8S104xx root part numbers corresponding to devices without data EEPROM. Updated STM8S103 pinout section 17-Sep-2008 4 Added low and medium density Flash memory categories. Added Note 1 in Section: Current characteristics. Updated Section: Option bytes. Updated STM8S103 pinout. Updated number of High Sink I/Os in the pinout section. TSSOP20 pinout modified (PD4 moved to pin 1 etc.) 05-Feb-2009 5 Added WFQFN20 package Updated Section: Option bytes. Added Section: Memory and register map. Removed STM8S103x products (separate STM8S103 27-Feb-2009 6 datasheet created). Updated Section: Electrical characteristics. 116/121 DocID14771 Rev 15

STM8S105x4/6 Revision history Table 57. Document revision history (continued) Date Revision Changes Added SDIP32 silhouette and package to Features and Section: SDIP32 package mechanical data; updated Section: Pinout and pin description. Updated VDD range (2.95 V to 5.5 V) on Features. Amended name of package VQFPN32. Added Table 5 on page 22. Updated Section: Auto wakeup counter. Updated pins 25, 30, and 31 in Section: Pinout and pin description. Removed Table 7: Pin-to-pin comparison of pin 7 to 12 in 32-pin access line devices. Added Table: Description of alternate function remapping bits [7:0] of OPT2. Section: Electrical characteristics: Updated VCAP 12-May-2009 7 specifications; updated Table 15, Table 18, Table 20, Table 21, Table 22, Table 23, Table 24, Table 25, Table 26, Table 27, Table 29, Table 35, and Table 42; added current consumption curves; removed Figure 20: typical HSE frequency vs fcpu @ 4 temperatures; updated Figure 13, Figure 14, Figure 15, Figure 16 and Figure 17; modified HSI accuracy in Table 33 ; added Figure 44; modified f t and t in Table 42; updated SCK, V(SO) V(MO) figures and tables of High speed internal RC oscillator (HSI); replaced Figure 23, Figure 24, Figure 26, and Figure 39. Section Package information: updated Section: Thermal characteristics and removed Table 57: Junction temperature range. Updated Section: STM8S105xx access line ordering information scheme. Document status changed from “preliminary data” to “datasheet”. 10-Jun-2009 8 Standardized the name of the VFQFPN package. Removed ‘wpu’ from I2C pins Section: Pinout and pin description DocID14771 Rev 15 117/121 120

Revision history STM8S105x4/6 Table 57. Document revision history (continued) Date Revision Changes Added UFQFPN32 package silhouette to the title page. In Features: added unique ID. Section: Clock controller: updated bit positions for TIM2 and TIM3. Section: Beeper: added information about availability of the beeper output port through option bit AFR7. Section: Analog-to-digital converter (ADC1): added a note concerning additional AIN12 analog input. Section: STM8S105 pinouts and pin description: added UFQFPN32 package details; updated default alternate function of PB2/AIN2[TIM1_CH3N] pin in the "Pin description for STM8S105 microcontrollers" table. Section: Option bytes: added description of STM8L bootloader option bytes to the option byte description table. Added Section: Unique ID Section: Operating conditions: added introductory text; removed low power dissipation condition for TA, replaced "CEXT" by "VCAP", and added ESR and ESL data in table "general operating conditions". Section: Total current consumption in halt mode: replaced max value of IDD(H) at 85 °C from 20 µA to 25 µA for the condition "Flash in powerdown mode, HSI 21-Apr-2010 9 clock after wakeup in the table "total current consumption in halt mode at VDD = 5 V. Section: Low power mode wakeup times: added first condition (0 to 16 MHz) for the t parameter in the WU(WFI) table "wakeup times". Section: Internal clock sources and timing characteristics: In the table: HSI oscillator characteristics, replaced min and max values of ACCHSI factory calibrated parameter and removed footnote 4 concerning further characterization of results. Section: Functional EMS (electromagnetic susceptibility): IEC 1000 replaced with IEC 61000. Section: Designing hardened software to avoid noise problems: IEC 1000 replaced with IEC 61000. Section: Electromagnetic interference (EMI): SAE J 1752/3 replaced with IEC61967-2. Section: Thermal characteristics: Replaced the thermal resistance junction ambient temperature of LQFP32 7X7 mm from 59 °C to 60 °C in the thermal characteristics table. Added Section: 32-lead UFQFPN package mechanical data. Added Section STM8S105 FASTROM microcontroller option list. 118/121 DocID14771 Rev 15

STM8S105x4/6 Revision history Table 57. Document revision history (continued) Date Revision Changes Table: Legend/Abbreviations for pinout tables: updated "reset state"; removed "HS", (T), and "[ ]". Section: Pin description for STM8S105 microcontrollers: added footnotes to the PF4 and PD1 pins. Table: I/O port hardware register map: changed reset status of Px_IDR from 0x00 to 0xXX. Table: General hardware register map: Standardized all address and reset state values; updated the reset state values of the RST_SR, CLK_SWCR, CLK_HSITRIMR, CLK_SWIMCCR, IWDG_KR, UART2_DR, and ADC_DRx registers; replaced reserved address "0x00 5248" with the UART2_CR5. 21-Sep-2010 10 Section: Recommended reset pin protection: replaced 0.01 µF with 0.1 µF Updated Figure: Typical application with I2C bus and timing diagram. Updated Table: ADC accuracy with RAIN < 10 kohm , VDDA = 5 V footnote 1 in and Table: ADC accuracy with RAIN < 10 kohm RAIN, VDDA = 3.3 V. Section: STM8S105 FASTROM microcontroller option list: removed bits 6 and 7 from OPT1 user boot code area (UBC); added "disable" to 00h and "enable" to 55h of OPTBL bootloader option byte. Section: VFQFPN Package Mechanical data: replaced note 1 and added note 2. Removed VFQFPN32 package. Modified Section: Description. Remove weak pull-up input for PE1 and PE2 in Table: Pin description for STM8S105 microcontrollers Updated Table: Interrupt mapping for TIM2 and TIM4. Updated notes related to VCAP in xm-replace_text General operating conditions. Added values of t /t for 50 pF load capacitance, and R F 04-Apr-2012 11 updated note in Section: I/O static characteristics. Updated typical and maximum values of RPU in Table: I/O static characteristics and Table: RST pin characteristics. Changed SCK input to SCK output in Table: SPI serial peripheral interface. Added  for UFQFPN32 and SDIP32 in Table: JA Thermal characteristics, and updated Section: Selecting the product temperature range Added UFQFPN package thickness in Figure: 28-Jun-2012 12 STM8S105xx access line ordering information scheme DocID14771 Rev 15 119/121 120

Revision history STM8S105x4/6 Table 57. Document revision history (continued) Date Revision Changes UART2_CK mapped to correct pin (pin 24) in Figure: LQFP 44-pin pinout. 07-Feb-2014 13 Reserved area updated in Table: Option bytes. Package Information updated in Table: 32-lead ultra thin fine pitch quad flat no-lead package mechanical data. Added: – Figure 49: LQFP48 marking example (package top view), – Figure 52: LQFP44 marking example (package top view), – Figure 55: LQFP32 marking example (package top view), 01-Jul-2015 14 – Figure 58: UFQFPN32 marking example (package top view), – Figure 60: SDIP32 marking example (package top view). Updated: – Figure 41: SPI timing diagram where slave mode and CPHA = 0, – the standard for EMI data in Table 48: EMI data. Added the footnotes related to Figure 56: UFQFPN32 - 23-Sep-2015 15 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat package outline. 120/121 DocID14771 Rev 15

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