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SP206/207/208/211 +5V RS-232 Serial Transceivers FEATURES • 0.μF External Charge Pump Capacitors T3 OUT 1 24 T4 OUT • 20kbps Data Rate T1OUT 2 23 R2IN • Standard SOIC and SSOP Packaging • Multiple Drivers and Receivers T2OUT 3 22 R2OUT • Single 5V Supply Operation R1IN 4 21 SD • .0μA Shutdown Mode • Tri-State Receiver Outputs R1OUT 5 20 EN S • Meets all RS-232F and V.28 Specifications T2IN 6 P 19 T4IN • Improved Driver Output Capacity for Mouse 2 Applications T1IN 7 06 18 T3IN • +/-0kV ESD Protection* GND 8 17 R3OUT VCC 9 16 R3IN C1+ 10 15 V– V+ 11 14 C2– C1– 12 13 C2+ Now Available in Lead Free Packaging Note: See page 4 for other pinouts DESCRIPTION The SP206, SP207, SP208 and SP2 are multi-channel RS-232 line transceivers in a variety of configurations to fit most communication needs. All models in this series feature low-power CMOS construction and Exar Patented (5,306,954) on-board charge pump circuitry to generate the +/-0V RS-232 voltage levels, using 0.µF charge pump capacitors to save board space and reduce circuit cost. The SP206 and SP2 models feature a low-power shutdown mode which reduces power sup- ply drain to  µA. Model Number of RS-232 No. of RX No. of External active in 0.μF Capacitors Shutdown WakeUp TTL Tri-State Drivers Receivers Shutdown SP206 4 3 0 4 Yes No Yes SP207 5 3 0 4 No No No SP208 4 4 0 4 No No No SP2 4 5 0 4 Yes No Yes Table . Mode Selection Table * All Driver Outputs and Receiver Inputs characterized per MIL-STD-883C Method 305.7 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 

AbSOlUTE MAxIMUM RATINgS These are stress ratings only and functional opera- tion of the device at these ratings or any other above those indicated in the operation sections of the speci- fications below are not implied. Exposure to absolute Package Power Dissipation: maximum ratings conditions for extended periods of 24-pin SSOP time may affect reliability. (derate .2mW/°C above +70°C..............900mW 24-pin WSOIC Supply Voltage (VCC)....................................................+ 6V (derate 2.5mW/°C above +70°C............000mW V+........................................................................... (Vcc-0.3V) to +3.2V 28-pin SSOP V- .............................................................................-3.2V (derate .2mW/°C above +70°C..............900mW Input Voltages 28-pin WSOIC Tin.....................................................-0.3V to (Vcc + 0.3V) (derate 2.7mW/°C above +70°C............000mW Rin............................................................................+/-20V Output Voltages Storage Temperature..................-65°C to +50°C Tout...............................................(V+, +0.3V) to (V-, -0.3V Lead Temperature (soldering, 0s).......... +300°C Rout...................................................-0.3V to (Vcc + 0.3V) Short Circuit duration on Tout...........................Continuous ElECTRICAl CHARACTERISTICS Vcc = 5V, C to C4 = 0.μF, Tmin to Tmax, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAx UNIT TTl INPUT Logic Threshold LOW, V Tin, En, SD 0.8 Volts iL Logic Threshold HIGH, V Tin, En, SD 2.0 Volts iH Logic Pull-Up Current Tin = 0V 5 200 μA Maximum Data Rate C = 2500pF, R = 3kΩ 20 kbps L L TTl OUTPUT Output Voltage LOW, VOL iouT = 3.2ma: VCC = +5V 0.4 Volts Output Voltage HIGH, VOH iouT = -1.0ma 3.5 Volts En = VCC, 0V ≤ VouT ≤ Vcc Leakage Current 0.05 +/-0 μA Ta=25°C RS-232 OUTPUT all Transmitter outputs loaded output Voltage Swing +/-5.0 +/-7 Volts with 3k ohms to GND Output Resistance Vcc = 0V, Vout = +/-2V 300 Ohms Output Short Circuit Current Infinite Duration +/-25 mA RS-232 INPUT Voltage Range -5 +5 Volts Voltage Threshold LOW Vcc = 5V, Ta=25°C 0.8 .2 Volts Voltage Threshold HIGH Vcc = 5V, Ta=25°C .7 2.4 Volts Hysteresis Vcc = 5V 0.2 0.5 .0 Volts Resistance Ta=25°C, -15V ≤ Vin ≤ +15V 3 5 7 kΩ Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 2

ElECTRICAl CHARACTERISTICS Vcc = 5.0V, C to C4 = 0.μF, Tmin to Tmax, unless otherwise noted. Parameter TEST CONDITIONS MIN TYP MAX Unit DYNAMIC CHARACTERISTICS Receiver Propagation Delay RS-232 to TTL, .5 μs Instantaneous Slew Rate CL = 50pF, RL = 3-7kΩ, Ta=25°C 30 V/ μs C = 2500pF, R = 3kΩ; L L Transition Region Slew Rate Measured from +3V to -3V or 5 V/ μs -3V to +3V Output Enable Time 400 ns Output Disable Time 250 ns POWER REQUIREMENTS Vcc (SP207) 4.75 5.00 5.25 Volts Vcc (SP206, SP208 and SP2) 4.50 5.00 5.5 Volts Vcc Power Supply Current No Load, Vcc = +/-0%,Ta=25°C 4 0 mA All Transmitters RL = 3kΩ, Vcc Power Supply Current, Loaded 20 mA Ta=25°C Shutdown Supply Current Ta=25°C  0 μA ENVIRONMENTAl AND MECHANICAl Operating Temperature, Commercial, _C 0 +70 °C Operating Temperature, Extended, _E -40 +85 °C Storage Temperature -65 +50 °C Package _A Shrink (SSOP) small outline Package _T Wide (SOIC) small outline Transmitter Output Transmitter Output R = 3kΩ, C = 5,000pF R = 3kΩ, C = 2,500pF L L L L Receiver Output Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 3

PACkAgE PINOUTS T3 OUT 1 24 T4 OUT T3 OUT 1 24 T4 OUT T1OUT 2 23 R2IN T1OUT 2 23 R2IN T2OUT 3 22 R2OUT T2OUT 3 22 R2OUT R1IN 4 21 SD R1IN 4 21 T5IN R1OUT 5 20 EN R1OUT 5 20 T5OUT T2IN 6 SP 19 T4IN T2IN 6 SP 19 T4IN T1IN 7 206 18 T3IN T1IN 7 207 18 T3IN GND 8 17 R3OUT GND 8 17 R3OUT VCC 9 16 R3IN VCC 9 16 R3IN C1+ 10 15 V– C1+ 10 15 V– V+ 11 14 C2– V+ 11 14 C2– C1– 12 13 C2+ C1– 12 13 C2+ T2 OUT 1 24 T3 OUT T3 OUT 1 28 T4 OUT T1OUT 2 23 R3IN T1OUT 2 27 R3IN R2IN 3 22 R3OUT T2OUT 3 26 R3OUT R2OUT 4 21 T4IN R2IN 4 25 SHUTDOWN (SD) T1IN 5 20 T4OUT R2OUT 5 24 EN R1OUT 6 SP 19 T3IN T2IN 6 23 R4IN GRN1IDN 78 208 1187 TR24IONUT R1OT1UINT 78 SP211 2221 RT44IONUT R1IN 9 20 T3IN VCC 9 16 R4IN C1+ 10 15 V– GND 10 19 R5OUT VCC 11 18 R5IN V+ 11 14 C2– C1+ 12 17 V– C1– 12 13 C2+ V+ 13 16 C2– C1– 14 15 C2+ Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 4

DESCRIPTION FEATURES PHASE 2 The SP206/207/208/2 multi-channel RS-232 Vss transfer: Phase two of the clock connects line transceivers provide a variety of configu- the negative terminal of C2 to the Vss stor- rations to fit most communication needs, es- age capacitor and the positive terminal of C2 pecially those applications where +/-2V is not to ground, and transfers the generated -0V to available. All models in this series feature low- C3. Simultaneously, the positive side of capaci- power CMOS construction and Exar's proprie- tor C is switched to +5V and the negative side tary on-board charge pump circuitry to generate is connected to ground. the +/-0V RS-232 voltage levels. The ability to use 0.µF charge pump capacitors saves board PHASE 3 space and reduces circuit cost. Different mod- Vdd charge storage: The third phase of the els within the series provide different driver/re- clock is identical to the first phase. The charge ceiver combinations to match any application transferred in C produces -5V in the negative requirement. terminal of C, which is applied to the negative side of C2. Since C2+ is at +5V, the voltage po- The SP206 and SP2 models feature a low- tential across C2 is 0V. power shutdown mode that reduces power sup- ply drain to µA. PHASE 4 Vdd transfer: The fourth phase of the clock con- The models in this series are available in 24-pin nects the negative terminal of C2 to ground, and 28-pin SO (wide) and SSOP (shrink) small and transfers the generated 0V across C2 to outline packages. Devices can be specified for C4, the Vdd storage capacitor. Again, simulta- commercial (0ºC to +70ºC) or industrial/extend- neously with this, the positive side of capaci- ed (-40ºC to +85ºC) operating temperatures. tor C is switched to +5V and the negative side is connected to ground, and the cycle begins THEORY OF OPERATION again. CHARgE PUMP Since both V+ and V- are separately generated The charge pump is an Exar patented design from Vcc; in a no-load condition V+ and V- will and uses a unique approach compared to older be symmetrical. Older charge pump approach- less-efficient designs. The charge pump still es that generate V- from V+ will show a de- requires four external capacitors, but uses a crease in magnitude of V- compared to V+ due four phase voltage shifting technique to attain to the inherent inefficiencies in the design. symmetrical +/-0V power supplies. Figure a shows the waveform found on the positive side The clock rate for the charge pump typically op- of capacitor C2 and Figure 3b shows the nega- erates at greater than 5kHz allowing the pump tive side of capacitor C2. There is a free-run- to run efficiently with small 0.1uF capacitors ning oscillator that controls the four phases of with a 6V breakdown voltage rating. the voltage shifting. A description of each phase follows: The SP206/207/208/2 devices are made up of three basic circuit blocks - ) transmitter/ PHASE 1 driver, 2) receiver and 3) charge pump. Each Vss charge storage - During this phase of the model within the series incorporates variations clock cycle, the positive side of capacitors C of these circuit to achieve the desired configu- and C2 are initially charged to +5V. C+ is then ration and performance. switched to ground and the charge in C- is transferred to C2-. Since C2+ is connected to +5V, the voltage potential across capacitor C2 is now 0V. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 5

DESCRIPTION RECEIVERS The receivers convert RS-232 input signals to inverted TTL signals. Since the input is usu- ally from a transmission line where long cable +0V length and system interference can degrade a) C2+ the signal, the inputs have a typical hysteresis GND margin of 500mV. This ensures that the re- ceiver is virtually immune to noisy transmission GND lines. Should an input be left unconnected, an b) C2+ internal 5kohm pull-down resistor to ground will -0V commit the output of the receiver to a HIGH state. SHUTDOWN MODE Figure . Charge Pump Waveforms The SP206 and SP2 feature a control input TRANSMITTER/DRIVER (SD) which will disable the device and reduce The drivers are inverting transmitters, which ac- the power supply current to less than 0µA, cept either TTL or CMOS inputs and output the making the parts ideal for battery-powered sys- RS-232 output signals with an inverted sense tems. In the "shutdown" mode the receivers relative to the input logic levels. Typically, the and transmitters will both be tri-stated. The V+ RS-232 output voltage swing is +/-9V with no output of the charge pump will discharge to Vcc load, and +/-5V minimum with full load. The and the V- output will discharge to ground. transmitter outputs are protected against infi- nite short-circuits to ground without degrada- ENAblE (EN) tion in reliability. The drivers of the SP206 and The SP206 and SP2 feature an enable input SP2 can be tri-stated by using the SHUT- which allows the receiver outputs to be either DOWN function. tri-stated or enabled. This can be especially useful when the receiver is tied directly to a In the "power off" state, the output impedance microprocessor data bus. The enable pin is will remain greater than 300 Ohms, again satis- active high. fying the RS-232 specifications. Should the input of the driver be left open, an internal 400kOhm pull-up resistor to Vcc forces the input high, thus committing the output to a low state. The slew rate of the transmitter output is internally limited to a maximum of 30V/µs in order to meet he EIA standards (EIA RS-232D 2,,7, Paragraph 5). The transition of the loaded output from high to low also meets the monotonicity requirements of the standard. VCC = +5V +5V C4 + + + – VDD Storage Capacitor C1– C2– – + VSS Storage Capacitor –5V –5V C3 Figure 2, Charge pump - Phase  Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 6

VCC = +5V C4 + + + – VDD Storage Capacitor C1– C2– – + VSS Storage Capacitor –10V C3 Figure 3, Charge pump - Phase 2 VCC = +5V +5V C4 + + + – VDD Storage Capacitor C1– C2– – + VSS Storage Capacitor –5V –5V C3 Figure 4, Charge pump - Phase 3 VCC = +5V +10V C4 + + + – VDD Storage Capacitor C1– C2– – + VSS Storage Capacitor C3 Figure 5, Charge pump - Phase 4 EIA STANDARDS +/-10kV ESD PROTECTION The Electronic Industry Association (EIA) The SP206/207/208/2 are equipped with developed several standards of data transmis- Exar proprietary ESD protection circuitry on sion which are revised and updated in order to all RS-232 inputs and outputs. This series meet the requirements of the industry. In data has been characterized using MIL-STD-883C processing, there are two basic means of com- Method 305.7 Human Body Model. Each municating between systems and components. device in the family can withstand up to +/- The RS-232 standard was first introduced in 0kV of static discharge on all RS-232 inputs 962 and, since that time, has become an and outputs. All other pins of each device will industry standard. maintain ≥ +/-2kV of ESD protection. The RS-232 is a relatively slow data exchange protocol, with a maximum baud rate of only 20kbaud, which can be transmitted over a maximum copper wire cable length of 50 feet. The SP206 through SP2 series of data com- munications interface products have been de- signed to meet both the EIA protocol standards , and the needs of the industry. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 7

TYPICAl APPlICATION CIRCUITS +5V INPUT 06..13µVF 060...131µVµFF ++111023 CCC112 +–+ SP9V2C0C6 VV +– 1115 +01+.6061V..µ13FµVF +5V IN06P..13UµVTF 060...131µVµFF ++111023 CCC112 +–+ SP9V2C0C7 VV +– 1115 +01+.6061V..µ13FµVF 16V 14 C2 – 16V 14 C2 – 400kOHM 400kOHM TTL/CMOS INPUTS TTTT1234 IIIINNNN 117689 444000000kkkOOOHHHMMM TTTT1243 23124TTTT1234 OOOOUUUUTTTT RS-232 OUTPUTS TTL/CMOS INPUTS TTTT1234 IIIINNNN 118976 444400000000kkkkOOOOHHHHMMMM TTTT1243 23124TTTT1234 OOOOUUUUTTTT RS-232 OUTPUTS UTS 5 4 S T5 IN 21 T5 20T5 OUT P R1 OUT R1 R1 IN T S T U T TTL/CMOS OU RR23 OOEUUNTT 221027 RR23 555kkkOOOHHHMMM 221136RR23 IINN RS-232 INP L/CMOS OUTPU RRR123 OOOUUUTTT 12725 RRR123 55kkOOHHMM 42136RRR123 IIINNN RS-232 INPUTS SD T T 5kOHM 8 8 GND GND +5V INPUT +5V INPUT 11 0.1µF 06..13µVF 0601...6131VµVµFF ++11110234 CCCC1122 +–+– SP9V2C0C8 VV +– 1115 +01+.6061V..µ13FµVF 06..13µVF 0601...6131VµVµFF ++11112456 CCCC1122 +–+–400SkOPHV2MC1C1 VV +– 1137 +01+.661V.µ3FV TTL/CMOS INPUTS TTTT1234 IIIINNNN 1125891 444400000000kkkkOOOOHHHHMMMM TTTT1243 212240TTTT1234 OOOOUUUUTTTT RS-232 OUTPUTS TTL/CMOS INPUTSR1 OTTTT1234U IIIITNNNN 2201768 444000R0001kkkOOOHHHMMM TTTT1243 231298TTTTR12341 OOOOINUUUUTTTT RS-232 OUTPUTS S UTS R1 OUT 6 R1 7 R1 IN S TPUT R2 OUT 5 R2 5kOHM 4 R2 IN UTS CMOS OUTP RR23 OOUUTT 242 RR23 55kkOOHHMM 323RR23 IINN S-232 INPUT TL/CMOS OU RR34 OOUUTT 2262 RR34 55kkOOHHMM 2273RR34 IINN RS-232 INP TTL/ R4 OUT 17 R4 5kOHM 16R4 IN R T R5 OUT 2149 R5 5kOHM 18R5 IN EN 5kOHM 5kOHM 25SD 8 10 GND GND Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 8

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 9

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 0

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 2

ORDERING INFORMATION Temperature Part number Drivers Receivers Package Type range SP206CA-L 4 3 0 to +700C 24 pin SSOP SP206CA-L/TR 4 3 0 to +700C 24 pin SSOP SP206CT-L 4 3 0 to +700C 24 pin WSOIC SP206CT-L/TR 4 3 0 to +700C 24 pin WSOIC SP206EA-L 4 3 -40 to +850C 24 pin SSOP SP206EA-L/TR 4 3 -40 to +850C 24 pin SSOP SP206ET-L 4 3 -40 to +850C 24 pin WSOIC SP206ET-L/TR 4 3 -40 to +850C 24 pin WSOIC SP207CT-L 5 3 0 to +700C 24 pin WSOIC SP207CT-L/TR 5 3 0 to +700C 24 pin WSOIC SP207ET-L 5 3 -40 to +850C 24 pin WSOIC SP207ET-L/TR 5 3 -40 to +850C 24 pin WSOIC SP208CA-L 4 4 0 to +700C 24 pin SSOP SP208CA-L/TR 4 4 0 to +700C 24 pin SSOP SP208CT-L 4 4 0 to +700C 24 pin WSOIC SP208CT-L/TR 4 4 0 to +700C 24 pin WSOIC SP208EA-L 4 4 -40 to +850C 24 pin SSOP SP208EA-L/TR 4 4 -40 to +850C 24 pin SSOP SP208ET-L 4 4 -40 to +850C 24 pin WSOIC SP208ET-L/TR 4 4 -40 to +850C 24 pin WSOIC SP2CA-L 4 5 0 to +700C 28 pin SSOP SP2CA-L/TR 4 5 0 to +700C 28 pin SSOP SP2CT-L 4 5 0 to +700C 28 pin WSOIC SP2CT-L/TR 4 5 0 to +700C 28 pin WSOIC SP2EA-L 4 5 -40 to +850C 28 pin SSOP SP2EA-L/TR 4 5 -40 to +850C 28 pin SSOP SP2ET-L 4 5 -40 to +850C 28 pin WSOIC SP2ET-L/TR 4 5 -40 to +850C 28 pin WSOIC Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 3

REVISION HISTORY Date Revision Description 5-26-05 Rev B Original SP200/204/206/207/208/2/23 Sipex Data sheet 7-6-0 .0.0 Change revision to .0.0 and convert to Exar format. Remove EOL part numbers and associated verbiage. Update ordering information. June 20 .0. SP207CA-L and SP207EA-L options removed per PDN 050-0 Notice EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliabil- ity. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user's specific application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances. Copyright 20 EXAR Corporation Datasheet June 20 Send your Serial Transceiver technical inquiry with technical details to: serialttechsupport@exar.com Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060 4

The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc. Maxlinear, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless MaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc. is adequately protected under the circumstances. MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. © 2017 MaxLinear, Inc. All rights reserved