ST202EB, ST202EC, ST232EB, ST232EC ±15 kV ESD-protected 5 V RS-232 transceiver Datasheet - production data Description The ST202EB, ST202EC, ST232EB, and ST232EC are two-driver, two-receiver devices designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against ± 15 kV electrostatic discharge (ESD) shocks. The drivers meet all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 230 kbps, when loaded in accordance with the EIA/TIA-232E specification. The ST202EB, ST202EC, ST232EB, and ST232EC use a single 5 V supply Features voltage. ESD protection for RS-232 I/O pins: ± 15 kV The ST232EB and ST232EC operate with four human body model 1 µF capacitors, while the ST202EB and Guaranteed 230 kbps date rate ST202EC operate with four 0.1 µF capacitors, Guaranteed slew rate range 3 to 30 V/µs further reducing cost and board space. Operates from a single 5 V power supply March 2017 DocID6900 Rev 18 1/18 This is information on a product in full production. www.st.com

Contents ST202EB, ST202EC, ST232EB, ST232EC Contents 1 Pinout information ........................................................................... 3 2 Absolute maximum ratings ............................................................. 4 3 Electrical characteristics ................................................................ 5 4 Typical application .......................................................................... 7 5 Typical performance characteristics ............................................. 8 6 Package information ..................................................................... 10 6.1 SO16 package information .............................................................. 11 6.2 TSSOP16 package information ....................................................... 12 6.3 SO16 tape and reel package information ........................................ 13 6.4 TSSOP16 tape and reel package information ................................. 14 6.5 Thermal characteristics ................................................................... 15 7 Ordering information ..................................................................... 16 8 Revision history ............................................................................ 17 2/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Pinout information 1 Pinout information Figure 1: Pin connections (top view) Table 1: Pin description Pin n° Symbol Name and function 1 C1+ Positive terminal for the first charge pump capacitor 2 V+ Doubled voltage terminal 3 C1- Negative terminal for the first charge pump capacitor 4 C2+ Positive terminal for the second charge pump capacitor 5 C2- Negative terminal for the second charge pump capacitor 6 V- Inverted voltage terminal 7 T2OUT Second transmitter output voltage 8 R2IN Second receiver input voltage 9 R2OUT Second receiver output voltage 10 T2IN Second transmitter input voltage 11 T1IN First transmitter input voltage 12 R1OUT First receiver output voltage 13 R1IN First receiver input voltage 14 T1OUT First transmitter output voltage 15 GND Ground 16 VCC Supply voltage DocID6900 Rev 18 3/18

Absolute maximum ratings ST202EB, ST202EC, ST232EB, ST232EC 2 Absolute maximum ratings Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Table 2: Absolute maximum ratings Symbol Parameter Value Unit VCC Supply voltage –0.3 to 6 V+ Extra positive voltage (VCC – 0.3) to 14 V- Extra negative voltage -14 to 0.3 TIN Transmitter input voltage range -0.3 to (V+ + 0.3) V RIN Receiver input voltage range ± 30 TOUT Transmitter output voltage range (V- - 0.3) to (V+ + 0.3) ROUT Receiver output voltage range –0.3 to (VCC + 0.3) TSCTOUT Short circuit duration on TOUT Infinite TSTG Storage temperature range -65 to 150 °C 4/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Electrical characteristics 3 Electrical characteristics Table 3: ESD performance: transmitter outputs, receiver inputs Symbol Parameter Test conditions Min. Typ. Max. Unit Human body model ± 15 ESD ESD protection voltage IEC 1000-4-2 (contact discharge) ± 6 — — kV IEC 1000-4-2 (air discharge) ± 8 Table 4: Electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to 125 °C, unless otherwise specified, typical values are referred to TA = 25 °C Symbol Parameter Test conditions Min. Typ. Max. Unit ISUPPLY VCC power supply current No load, TA = 25 °C — 5 10 mA Table 5: Transmitter electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to 85 °C, unless otherwise specified, typical values are referred to TA = 25 °C Symbol Parameter Test conditions Min. Typ. Max. Unit All transmitter outputs are loaded VTOUT Output voltage swing with 3 kΩ to GND ± 5 ± 9 V ITIL Input leakage current ± 10 µA Input logic threshold VTIL low 0.8 V Input logic threshold VTIH high 2 SRT Transition slew rate TA7 = k 2Ω5, °CCL ,= V 5C0C =to 51 0V0, 0R pL F= (31) to 3 6 30 V/µs DR Data rate 1000R pLF =, o3n teo t7r aknΩs,m CitLt e=r 5s0w ittoc h ing 230 400 kbits/s Transmitter output RTOUT resistance VCC = V+ = V- = 0 V, VOUT = ± 2 V 300 Ω Transmitter output ISC short circuit current ± 10 ± 60 mA tDT Propagtaimtioen delay 250R0L p=F 3, atoll t7r aknΩs,m CitLt e=r s5 0lo atod e d 2 µA Notes: (1)Measured from 3 V to -3 V or from -3 V to 3 V DocID6900 Rev 18 5/18

Electrical characteristics ST202EB, ST202EC, ST232EB, ST232EC Table 6: Receiver electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to 85 °C, unless otherwise specified, typical values are referred to TA = 25 °C Test Symbol Parameter Min. Typ. Max. Unit conditions Receiver input voltage operating VRIN range -30 30 V RRIN RS-232 input resistance 3 5 7 kΩ VRIL RS-232 input logic threshold low TVAC =C 2=5 5 ° VC , 0.8 1.2 VRIH RS-232 input logic threshold high 1.7 2.4 VRIHYS RS-232 input hysteresis VCC = 5 V 0.2 0.5 1 V VROL TTL/CMOS output voltage low IOUT = 3.2 mA 0.4 VROH TTL/CMOS output voltage high IOUT = -1 mA 3.5 V0C.C4 - tDR Propagation delay time CL = 150 pF 0.5 10 µs 6/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Typical application 4 Typical application Figure 2: Application circuit 1. C can be replaced by the 1 µF capacitors 1-4 2. C can be common or biased capacitors 1-4 Table 7: Capacitance value (µF) Device C2 C3 C4 C5 ST202E 0.1 ST232E 1 DocID6900 Rev 18 7/18

Typical performance characteristics ST202EB, ST202EC, ST232EB, ST232EC 5 Typical performance characteristics Unless otherwise specified T = 25 °C J Figure 3: Supply current vs temperature Figure 4: Data rate vs temperature Figure 5: Receiver propagation delay Figure 6: Driver propagation delay 8/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Typical performance characteristics Figure 7: High level output voltage swing vs temperature Figure 8: Low level output voltage swing vs temperature Figure 9: High level transmitter output short circuit Figure 10: Low level transmitter output short circuit current vs temperature current vs temperature Figure 11: High level receiver output short circuit current Figure 12: Low level receiver output short circuit current vs temperature vs temperature DocID6900 Rev 18 9/18

Package information ST202EB, ST202EC, ST232EB, ST232EC 6 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. 10/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Package information 6.1 SO16 package information Figure 13: SO16 package outline Table 8: SO16 mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A 1.75 0.068 a1 0.1 0.25 0.004 0.010 a2 1.64 0.063 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45 ° 45 ° D 9.8 10 0.385 0.393 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M 0.62 0.024 S 8 ° 8 ° DocID6900 Rev 18 11/18

Package information ST202EB, ST202EC, ST232EB, ST232EC 6.2 TSSOP16 package information Figure 14: TSSOP16 package outline Table 9: TSSOP16 mechanical data Dimensions Ref Millimeters Inches Min Typ Max Min Typ Max A 1.20 0.047 A1 0.05 0.15 0.002 0.006 A2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 D 4.90 5.00 5.10 0.193 0.197 0.201 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 0.026 k 0° 8° 0° 8° L 0.45 0.60 0.75 0.018 0.024 0.030 L1 1.00 0.039 aaa 0.10 0.004 12/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Package information 6.3 SO16 tape and reel package information Figure 15: SO16 tape and reel package outline 1. Drawing not to scale Table 10: SO16 tape and reel mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 22.4 0.882 — — Ao 6.45 6.65 0.254 0.262 Bo 10.3 10.5 0.406 0.414 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 DocID6900 Rev 18 13/18

Package information ST202EB, ST202EC, ST232EB, ST232EC 6.4 TSSOP16 tape and reel package information Figure 16: TSSOP16 tape and reel package outline 1. Drawing not to scale Table 11: TSSOP16 tape and reel mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 22.4 0.882 — — Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 14/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Package information 6.5 Thermal characteristics Table 12: Absolute maximum ratings Package Symbol Value Board type Unit 115 1-layer board Rthja (1) SO16 80 4-layer board Rthjc (2) 30 1-layer board °C/W 140 1-layer board Rthja (1) TSSOP16 95 2-layer board Rthjc (2) 25 Notes: (1)Rthja is the package junction-to-ambient thermal resistance in °C/W (2)Rthjc is the package junction-to-case thermal resistance in °C/W DocID6900 Rev 18 15/18

Ordering information ST202EB, ST202EC, ST232EB, ST232EC 7 Ordering information Table 13: Order codes Temperature Order code Package Packaging Marking range ST202EBDR ST232EBDR -40 to 85 °C S016 ST202B ST202ECDR ST232ECDR 0 to 70 °C (tape and reel) ST202C 2500 parts per reel ST202EBTR ST232EBTR -40 to 85 °C TSSOP16 ST202B ST202ECTR ST232ECTR 0 to 70 °C (tape and reel) ST202C 16/18 DocID6900 Rev 18

ST202EB, ST202EC, ST232EB, ST232EC Revision history 8 Revision history Table 14: Document revision history Date Revision Changes 21-Feb-2006 12 Change value of ITIL on transmitter characteristics, ±1µA ==> ±10µA. 14-Mar-2006 13 Order codes has been updated and new template. 27-Aug-2007 14 Added Table 1 in cover page. 13-Nov-2007 15 Modified: Table 1. 08-Feb-2008 16 Modified: Table 1 on page 1. Updated ECOPACK® information 15-Jan-2014 17 Added Section 6.1: Package thermal characteristics Updated disclaimer Removed SO16L package Features: updated units of guaranteed slew rate range from V/ms to V/µs. Moved “Device summary” table to Section 7: "Ordering information". 08-Mar-2017 18 Removed obsolete order codes ST202EBWR and ST232ECWR from this table and added “Marking”. Section 6.2: "TSSOP16 package information": added dimensions “L1” and “aaa”, and replaced dimension “K” with “k”. DocID6900 Rev 18 17/18

ST202EB, ST202EC, ST232EB, ST232EC IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2017 STMicroelectronics – All rights reserved 18/18 DocID6900 Rev 18