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SP202E,SP232E, SP233E, SP310E and SP312E High Performance RS-232 Line Drivers/Receivers FEATURES • Operates from a Single +5V Power Supply • Meets all RS-232D and ITU V.28 Specifications • Operates with 0.μF to 0μF Ceramic Capacitors • No External Capacitors required (SP233E) • Low Power Shutdown (SP30E, SP32E) • High Data Rate - 20kbps under load • Low power CMOS Operation • Lead Free packaging available • Improved ESD Specifications: +/-5kV Human Body Model DESCRIPTION The SP202E, SP232E, SP233E, SP30E and SP32E devices are a family of line driver and re- ceiver pairs that meets the specifications of RS-232 and V.28 serial protocols. The devices are pin- to-pin compatible with Exar's SP232A, SP233A, SP30A and SP32A devices as well as popular industry standard pinouts. The ESD tolerance has been improved on these devices to over +/-5kV for Human Body Model. This series offer a 20kbps data rate under load, small ceramic type 0.μF charge pump capacitors and overall ruggedness for comercial applications. Features include Exar's BiCMOS design which allowing low power operation without sacrificing performance. The series is available in lead free packages with commercial and industrial temperature ranges. SELECTION TABLE Model Number of RS-232 No. of RX No. of External active in 0.μF Capacitors Shutdown WakeUp TTL Tri-State Drivers Receivers Shutdown SP202E 2 2 0 4 No No No SP232E 2 2 0 4 No No No SP233E 2 2 0 0 No No No SP30E 2 2 0 4 Yes No Yes SP32E 2 2 2 4 Yes Yes Yes Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 

AbSoLUTE MAxiMUM RATingS This is a stress rating only and functional operation of the device at these ratings or any other above those indicated in the operation section of the specification is not implied. Exposure to absolute maximum ratings conditions for extended periods of time may affect re- liability. Short Circuit duration Supply Voltage (VCC)....................................................+ 6V Tout.....................................................Continuous V+........................................................................... (Vcc-0.3V) to +.0V Package Power Dissipation: V- .............................................................................-.0V Plastic DIP...............................................375mW Input Voltages (derate 7mW/°C above +70°C) Tin.....................................................-0.3V to (Vcc + 0.3V) Small Outline...........................................375mW Rin............................................................................+/-5V (derate 7mW/°C above +70°C) Output Voltages Storage Temperature..................-65°C to +50°C Tout...............................................(V+, +0.3V) to (V-, -0.3V Rout...................................................-0.3V to (Vcc + 0.3V) ELECTRiCAL CHARACTERiSTiCS Vcc = 5V ±0%, 0.μF charge pump capacitors, Tmin to Tmax, unless otherwise noted, Typical values are Vcc = 5V and Ta=25°C PARAMETER TEST ConDiTionS Min TYP MAx UniT TTL inPUT Logic Threshold LOW T , En, SD, On/OFF 0.8 Volts in Logic Threshold HIGH T , En, SD, On/OFF 2.0 Volts in Logic Pull-Up Current T = 0V 5 200 μA in TTL oUTPUT Output Voltge LOW iOuT = 3.2ma: Vcc = +5V 0.4 Volts Output Voltage HIGH iOuT = -1.0ma 3.5 Volts Leakage Current **; Ta = +25°C En = Vcc, 0V ≤ VOuT ≤ Vcc 0.05 +/-0 μA RS-232 oUTPUT all Transmitter outputs loaded Output Voltage Swing +/-5.0 +/-6 Volts with 3k ohms to GND Output Resistance Vcc = 0V, Vout = +/-2V 300 Ohms Output Short Circuit Current Infinite Duration +/-8 mA Maximum Data Rate CL = 2500pF, RL = 3kΩ 20 240 kbps 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 2.8 Volts Hysteresis Vcc = 5V, Ta=25°C 0.2 0.5 .0 Volts Resistance Ta = 25°C, -15V ≤ Vin ≤ +15V 3 5 7 kΩ ** SP30E and SP32E only Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 2

ELECTRiCAL CHARACTERiSTiCS Vcc = 5V ±0%, 0.μF charge pump capacitors, Tmin to Tmax, unless otherwise noted, Typical values are Vcc = 5V and Ta=25°C Parameter TEST ConDiTionS Min TYP MAx Unit DYnAMiC CHARACTERiSTiCS Driver Propagation Delay TTL to RS-232; C = 50pF .5 3.0 μs L Receiver Propagation Delay RS-232 to TTL 0. .0 μs Instantaneous Slew Rate C = 0pF, R = 3-7kΩ; T= 25°C 30 V/μs L L A C = 2500pF, R = 3kΩ; L L Transition Region Slew Rate Measured from +3V to -3V or 0 V/μs -3V to +3V Output Enable Time ** SP30E and SP32E only 400 ns Output Disable Time ** SP30A and SP32A only 250 ns PoWER REQUiREMEnTS Vcc Power Supply Current No Load, Vcc = 5V, T= 25°C 3 5 mA A All Transmitters R = 3kΩ, Vcc Power Supply Current, Loaded L 5 mA T= 25°C a Shutdown Supply Current ** Vcc = 5V, T= 25°C  5 μA a ** SP30E and SP32E only PERFoRMAnCE CURvES -11 12 -10 10 -9 VCC = 6V – Voltage (Volts) ---678 VCVCC =C 5=V 6V V+ (Volts) 68 VCCV =C C4V = 5V V -5 VCC = 4V 4 -4 2 -3 0 2 4 6 8 10 12 14 0 0 5 10 15 20 25 30 35 40 Load Current (mA) Load Current (mA) 30 9.0 8.5 25 VCC = 6V 8.0 20 7.5 I (mA)CC05 VCC = 5V V (Volts)OH67..50 LTAo a=d 2 c5uCrrent = 0mA VCC = 4V 6.0 5 VCC = 3V 5.5 0-55 -40 0 25 70 85 25 5.04.5 4.75 5.0 5.25 5.5 Temperature ( C) VCC (Volts) Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 3

Pin ASSignMEnTS Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 4

DESCRiPTion DETAiLED DESCRiPTion Receivers The SP202E, SP232E, SP233E, SP30E and The receivers convert EIA/TIA-232 signal lev- SP32A devices are a family of line driver and els to inverted TTL or CMOS logic output lev- receiver pairs that meet the EIA/TIA-232 and els. Since the input is usually from a transmis- V.28 serial communication protocols. The ESD sion line, where long cable length and system tolerance has been improved on these devices interference can degrade the signal, the inputs to over +/-5kV for Human Body Model. These have a typical hysteresis margin of 500mV. This devices are pin-to-pin compatible with Exar's ensures that the receiver is virtually immune to 232A, 233A, 30A and 32A as well as popular noisy transmission lines. The input thresholds industry standards. This family of parts offer a are 0.8V minimum and 2.8V maximum, again 20kbps data rate, 0V/μs slew rate and an on- well within the +/-3V RS-232 requirements. board charge pump that operates from a single Should an input be left unconnected, an internal 5V supply using 0.μF ceramic capacitors. 5kohm pull-down resistor to ground will commit the output of the receiver to a HIGH state. The SP202E, 232E, 233E, 30E and 32E de- vices have internal charge pump voltage con- In actual system applications, it is quite pos- verters which allow them to operate from a sin- sible for signals to be applied to receiver inputs gle +5V supply. The charge pumps will operate before power is applied to the receiver circuitry. with polarized or non-polarized capacitors rang- This occurs, for example, when a PC user at- ing from 0. to 0µF and will generate the +/-6V tempts to print, only to realize that the printer needed to generate the RS-232 output levels. wasn't turned on. In this case an RS-232 signal from the PC will appear on the receiver input The SP233E design offers internal charge pump at the printer. When the printer power is turned capacitors. The SP30E provides an ON/OFF on, the receiver will operate normally. All of input that simultaneously disables the internal these devices are fully protected. charge pump circuit and puts all transmitter and receiver outputs into a high impedance state. Charge pump The SP32E is identical to the SP30E but with The charge pump is an Exar patented design seperate tri-state and shutdown inputs and uses a unique approach compared to older less efficiant designs. The charge pump Theory of operation requires 4 external capacitors and uses a four The SP202E, SP232E, SP233E, SP30E and phase voltage shifting technique. The internal SP32E devices are made up of three basic power supply consists of a dual charge pump circuit blocks: 1. Drivers, 2. Receivers, and 3. that provides a driver output voltage swing of charge pump. Each block is described below. +/-6V. The internal oscillator controls the four phases of the voltage shifting. A description of Drivers each phase follows: The drivers are inverting level transmitters that convert TTL or CMOS logic levels to EIA/TIA- Phase 1 232 levels with an inverted sense relative to Vss charge store and double: The positive ter- the input logic levels. The typical driver output minals of capacitors C and C2 are charged voltage swing is +/-6V. Even under worst case from Vcc with their negative terminals initially loading conditions of 3k ohms and 2500pF, the connected to ground. C+ is then connected driver output is guaranteed to be +/-5.0V mini- to ground and the stored charge from C- is mum, thus satisfying the RS-232 specification. superimposed onto C2-. Since C2+ is still con- The driver outputs are protected against infinite nected to Vcc the voltage potential across C2 short-circuits to ground without degradation in is now 2 x Vcc. reliability. Phase 2 The slew rate of the driver output is internally Vss transfer and invert: Phase two connects limited to 30V/μs in order to meet the EIA stan- the negative terminal of C2 to the Vss storage dards (EIA-232F). Additionally, the driver out- capacitor and the positive terminal of C2 to puts LOW to HIGH transition meets the mon- ground. This transfers the doubled and invert- tonic output requirements of the standard. ed (V-) voltage onto C4. Meanwhile, capacitor Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 5

DESCRiPTion C is charged from Vcc to prepare it for its next Wake-Up Feature for the SP312E phase. The SP32E has a wake-up feature that keeps the receivers active when the device is placed Phase 3 into shutdown. Table 1 defines the truth table for Vdd charge store and double: Phase three is the Wake-Up function. When only the receivers identical to the first phase. The positive termi- are activated, the SP32E typically draws less nals of C and C2 are charged from Vcc with than 5uA supply current. In the case of when their negative terminals initially connected to a modem is interfaced to a computer in power ground. C+ is then connected to ground and down mode, the Ring Indicator (RI) signal from the stored charge from C- is superimposed the modem would be used to "wake-up" the onto C2-. Since C2+ is still connected to Vcc computer, allowing it to accept data transmis- the voltage potential across capacitor C2 is now sion. 2 x Vcc. After the ring indicator has propagated through the SP32E receiver, it can be used Phase 4 to trigger the power management circuitry of Vdd transfer: The fourth phase connects the the computer to power up the microproces- negative terminal of C2 to ground and the posi- sor, and bring the SD pin of the SP32E to a tive terminal of C2 to the Vdd storage capacitor. logic high, taking it out of the shutdown mode. This transfers the doubled (V+) voltage onto C3. The receiver propagation delay is typically Meanwhile, capacitor C is charged from Vcc to us. The enable time for V+ and V- is typi- prepare it for its next phase. cally 2ms. After V+ and V- have settled to their final values, a signal can be sent back to the The clock rate for the charge pump typically op- modem on the data terminal ready (DTR) pin erates at greater than 5kHz allowing the pump signifying that the computer is ready to accept to run efficiently with small 0.1uF capacitors. Ef- the transmit data. ficient operation depends on rapid charging and discharging of C and C2, therefore capacitors Power Receiver should be mounted as close as possible to the SD EN Up/Down outputs IC and have low ESR (equivalent series resis- tance). Inexpensive surface mount, ceramic ca- 0 0 Down Enabled pacitors are ideal for using on charge pump. If 0  Down Tri-state polarized capacitors are used the positive and negative terminals should be connected as  0 Up Enabled shown in the typical operating circuit. A diagram   Up Tri-state of the individual phases are shown in Figure . Table . Wake-up Function truth table Shutdown (SD) and Enable (En) features for the SP310E and SP312E Both the SP30E and SP32E have a shutdown Pin Strapping for the SP233E / standby mode to conserve power in battery- To operate properly, the following pairs of pins powered applications. To activate the shutdown must be externally wired together as noted in mode, which stops the operation of the charge table 2: pump, a logic "0" is applied to the appropriate Pins Wired SOICW control line. For the SP30E, this control line is Together the ON/OFF (pin 8) input. Activating the shut- Two V- pins 0 & 7 down mode puts the SP30E transmitter and receiver ouptuts into a high impedance con- Two C2+ pins 2 & 5 dition. For the SP32E, this control line is the Two C- pins  & 6 SHUTDOWN (pin8) input; this also puts the Connect Pins 6 and 9 to transmitter outputs in a tri-state mode. The re- GND ceiver outputs can be tri-stated seperately dur- ing normal operation or shutdown by applying a logic "" on the EN line (pin ). Table 2. Pin Strapping table for SP233E Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 6

DESCRiPTion + V CC - Phase 2 – Vss transfer from C2 to C4. Meanwhile C 1 is charged to Vcc + + C + C + V+ C 3 V 1 2 CC Phases 1 and 3: Store/Double. e - e - - Double charge from C 1 onto C2. e - + C 2 is now charged to -2xVcc C 4 Vss + C + C + V+ C 3 Patented 5,306,954 1 2 e - e - V- + + V C CC - 4 Phas e 4 V D D transfer from C2 to C3. Meanwhile C1 is charged to Vcc V DD e + e + + C + C + V+ C 3 1 2 e - V- + C 4 Figure . Charge pump phases ESD ToLERAnCE The premise of this ESD test is to simulate the human body's potential to store electro- The SP202E, 232E, 233E, 30E and 32E static energy and discharge it to an intergrated devices incorporates ruggedized ESD cells on circuit. The simulation is peformed by using a all driver outputs and receiver input pins. The test model as shown in figure 2. This method ESD structure is improved over our previous will test the IC's capability to withstand an ESD family for more rugged applications and envi- transient during normal handling such as in ronments sensitive to electro-static discharges manufacturing areas where the IC's tend to be and associated transients. The improved ESD handled frequently. tolerance is at least +/-5kV Human Body RC RS Model without damage nor latch-up. SW1 SW2 Talhlye aHcucmepatne dB EodSyD M teosdteinl gh amse btheoedn ftohre s geemnie-r- DSCo uProcewer CS DUTeensvdtiecre conductors. This method is also specified in MIL-STD-883, Method 305.7 for ESD testing. Figure 2. ESD test circuit for Human Body Model Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 7

TYPiCAL PERFoRMAnCE CHARACTERiSTiCS Figure 6, Charge pump outputs at Figure 3, SP232E Charge pump waveforms- start up ( = Vcc, 2 = V+, 3 = V-). no load ( = C+, 2 = C2+, 3 = V+, 4 = V-). Figure 4, SP232E Charge pump waveforms when fully loaded with 3Kohms ( = C+, 2 = C2+, 3 = V+, 4 = V-). Figure 5, Loopback results at 60KHZ and 2500pF load ( = TXin, 2 = TXout/RXin, 3 = RXout). Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 8

Figure 7, SP202E and SP232E Typical Figure 9, SP233ECT Typical Application Application circuit circuit Figure 8, SP30E Typical Application Figure 0, SP32E Typical Application circuit circuit Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 9

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 0

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 2

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 3

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 4

ORDERING INFORMATION Part number Temperature range Package Type SP202ECN-L 00C to +700C 6 pin NSOIC SP202ECN-L/TR 00C to +700C 6 pin NSOIC SP202ECP-L 00C to +700C 6 pin PDIP SP202ECT-L 00C to +700C 6 pin SOICW SP202ECT-L/TR 00C to +700C 6 pin SOICW SP202EEN-L -400C to +850C 6 pin NSOIC SP202EEN-L/TR -400C to +850C 6 pin NSOIC SP202EEP-L -400C to +850C 6 pin PDIP SP202EET-L -400C to +850C 6 pin SOICW SP202EET-L/TR -400C to +850C 6 pin SOICW SP232ECN-L 00C to +700C 6 pin NSOIC SP232ECN-L/TR 00C to +700C 6 pin NSOIC SP232ECP-L 00C to +700C 6 pin PDIP SP232ECT-L 00C to +700C 6 pin SOICW SP232ECT-L/TR 00C to +700C 6 pin SOICW SP232EEN-L -400C to +850C 6 pin NSOIC SP232EEN-L/TR -400C to +850C 6 pin NSOIC SP232EEP-L -400C to +850C 6 pin PDIP SP232EET-L -400C to +850C 6 pin SOICW SP232EET-L/TR -400C to +850C 6 pin SOICW SP233ECT-L 00C to +700C 20 pin SOICW SP233ECT-L/TR 00C to +700C 20 pin SOICW SP233EET-L -400C to +850C 20 pin SOICW SP233EET-L/TR -400C to +850C 20 pin SOICW SP30ECT-L 00C to +700C 8 pin SOICW SP30ECT-L/TR 00C to +700C 8 pin SOICW SP30EET-L -400C to +850C 8 pin SOICW SP30EET-L/TR -400C to +850C 8 pin SOICW SP32ECT-L 00C to +700C 8 pin SOICW SP32ECT-L/TR 00C to +700C 8 pin SOICW SP32EET-L -400C to +850C 8 pin SOICW SP32EET-L/TR -400C to +850C 8 pin SOICW All packages are available as lead free (RoHS compliant). Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 5

REVISION HISTORY Date Revision Description 7-9-04 A Original Sipex Data sheet -06-08 .0.0 Generate new Datasheet using Exar format and change revision to .0.0. Remove IEC Air and Contact ESD ratings. Update ordering information to remove EOL part numbers. Up- date charge pump description to show regulated charge pump design. 06-03- .0. Remove SP30ECP-L and SP30EEP-L 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 writting, 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: serialtechsupport@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 • www.exar.com SP202E,232E,233E, 30E, 32E_0_0603 6

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

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: E xar: SP232EEP-L SP232ECN-L SP310ECT-L SP232EET-L SP310EET-L SP232ECP-L SP312EET-L SP232ECT-L SP312ECT-L SP232EEN-L SP233ECT-L SP232ECT-L/TR SP232EET-L/TR SP232ECN-L/TR SP232EEN-L/TR SP310ECT-L/TR SP310EET-L/TR SP233ECT-L/TR SP233EET-L SP233EET-L/TR SP312EET-L/TR SP312ECT- L/TR