DS89C387 NSC | Alldatasheet

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n Low power ICC : 1.5 mA maximum n Meets TIA/EIA-422-B (RS-422) n Guaranteed AC parameters: — Maximum driver skew −3 ns — Maximum transition time −10 ns n Available in SSOP packaging: — Requires 30% less PCB space than 3 DS34C87TMsConnection Diagram Functional Diagram Truth Table Enable Input Outputs EN DI DO DO * LX Z Z HH H L HL L H TRI-STATE® is a registered trademark of National Semiconductor Corporation. 48L SSOP DS89C387 DS012086-1 Order Number DS89C387TMEA See NS Package Number MS48A DS012086-2 1/6 of package May 1995 DS89C387 Twelve Channel CMOS Differential Line Driver © 1998 National Semiconductor Corporation DS012086 www.national.com

Absolute Maximum Ratings(Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V CC ) −0.5 to 7.0V DC Voltage (VIN) −1.5 to V CC +1.5V DC Output Voltage (VOUT ) −0.5 to 7V Clamp Diode Current (IIK,IOK ) ±20 mA DC Output Current, per pin (IOUT ) ±150 mA DC V CC or GND Current (ICC ) ±500 mA Storage Temperature Range (TSTG ) −65˚C to +150˚C Maximum Power Dissipation (PD ) @ 25˚C (Note 3) Lead Temperature (TL) (Soldering 4 sec.) 260˚C This device does not meet 2000V ESD rating.(Note 11) Operating Conditions Min Max Units Supply Voltage (VCC ) 4.50 5.50 V DC Input or Output Voltage (VIN,V OUT )0 V CC V Operating Temperature Range (TA) DS89C387T −40 +85 ˚C Input Rise or Fall Times (tr,tf) 500 ns VCC = 5V ±10% (unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units VIH High Level Input 2.0 V CC V Voltage VIL Low Level Input GND 0.8 V Voltage V OH High Level Output V IN = VIH or VIL, 2.5 3.4 V Voltage I OUT = −20 mA VOL Low Level Output V IN = VIH or VIL, 0.3 0.5 V Voltage I OUT = 48 mA VT Differential Output R L = 100Ω 2.0 3.1 V Voltage (Note 5) |VT|–|VT| Difference In R L = 100Ω 0.4 V Differential Output (Note 5) VOS Common Mode R L = 100Ω 2.0 3.0 V Output Voltage (Note 5) |VOS –V OS | Difference In R L = 100Ω 0.4 V Common Mode Output (Note 5) IIN Input Current V IN = VCC , GND, VIH,o rVIL ±1.0 µA ICC Quiescent Supply I OUT = 0 µA, 600 1500 µA Current V IN = VCC or GND VIN = 2.4V or 0.5V (Note 6) 0.8 2.0 mA IOZ TRI-STATE Output V OUT = VCC or GND ±0.5 ±5.0 µA Leakage Current Control = VIL ISC Output Short V IN = VCC or GND −30 −115 −150 mA Circuit Current (Notes 5, 7) IOFF Power Off Output V CC = 0V V OUT = 6V 100 µA Leakage Current (Note 5) V OUT = −0.25V −100 µA Note 1:Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device should be operated at these limits. The table of “Electrical Characteristics” provide conditions for actual device operation. Note 2:Unless otherwise specified, all voltages are referenced to ground. All currents into device pins are positive; all currents out of device pins are negative. Note 3:Ratings apply to ambient temperature at 25˚C. Above this temperature derate SSOP (MEA) Package 10.9 mW/˚C. Note 4:Unless otherwise specified, min/max limits apply across the −40˚C to 85˚C temperature range. All typicals are given for VCC = 5V and TA = 25˚C. Note 5:See TIA/EIA-422-B for exact test conditions. Note 6:Measured per input. All other inputs at VCC or GND. Note 7:This is the current sourced when a high output is shorted to ground. Only one output at a time should be shorted. www.national.com 2

Switching Characteristics(Note 4) VCC = 5V ±10% ,tr,tf ≤ 6n s(Figures 1, 2, 3, 4) Symbol Parameter Conditions Min Typ Max Units tPLH ,tPHL Propagation Delay S1 Open 2 6 11 ns Input to Output Skew (Note 8) S1 Open 0 0.5 3 ns t TLH ,tTHL Differential Output Rise S1 Open 6 10 ns And Fall Times t PZH Output Enable Time S1 Closed 12 25 ns tPZL Output Enable Time S1 Closed 13 26 ns tPHZ Output Disable Time (Note 9) S1 Closed 4 8 ns tPLZ Output Disable Time (Note 9) S1 Closed 6 12 ns C PD Power Dissipation 100 pF Capacitance (Note 10) C IN Input Capacitance 6 pF Note 8:Skew is defined as the difference in propagation delays between complementary outputs at the crossing point. Note 9:Output disable time is the delay from the control input being switched to the output transistors turning off. The actual disable times are less than indicated due to the delay added by the RC time constant of the load. Note 10:C PD determines the no load dynamic power consumption, PD = C PD V2C Cf+I CC VCC , and the no load dynamic current consumption, IS = C PD VCC f+ ICC . Note 11: ESD Rating: HBM (1.5 kΩ , 100 pF) Inputs≥ 1500V Outputs≥ 1000V EIAJ (0Ω , 200 pF) All Pins≥ 350V Logic Diagram DS012086-3 www.national.com3

TABLE 2. Device Pin Names and Descriptions

38 V CC Positive Power Supply Pin +5±10%

Physical Dimensionsinches (millimeters) unless otherwise noted LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or sys- tems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail- ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 48-Lead (0.300" Wide) Molded Shrink Small Outline Package, JEDEC Order Number DS89C387TMEA DS89C387 Twelve Channel CMOS Differential Line Driver National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.