DS34C87T NSC | Alldatasheet

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n Typical propagation delays: 6 ns n Typical output skew: 0.5 ns n Outputs won’t load line when VCC = 0V n Meets the requirements of EIA standard RS-422 n Operation from single 5V supply n TRI-STATE outputs for connection to system buses n Low quiescent current n Available in surface mount Connection and Logic Diagrams Truth Table Input Control Non-Inverting Inverting Input Output Output HH H L LH L H XL Z Z L = Low logic state H = High logic state X = Irrelevant Z = TRI-STATE (high performance) TRI-STATE® is a registered trademark of National Semiconductor Corporation. Dual-In-Line Package DS008576-1 Top View Order Number DS34C87TM or DS34C87TN See NS Package Number M16A or N16E DS008576-2 May 1998 DS34C87T CMOS Quad TRI-STATE™Differential Line Driver © 1998 National Semiconductor Corporation DS008576 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 (I OUT ) ±150 mA DC V CC or GND Current (ICC ) ±150 mA Storage Temperature Range (T STG ) −65˚C to +150˚C Maximum Power Dissipation (PD ) @ 25˚C (Note 3) Plastic “N” Package 1736 mW Lead Temperature (TL) (Soldering 4 sec) 260˚C This device does not meet 2000V ESD rating.(Note 12) 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) DS34C87T −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 Voltage V IL Low Level Input 0.8 V Voltage VOH 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 = 100 Ω 2.0 3.1 V Voltage (Note 5) |VT|–| VT| Difference In R L = 100 Ω 0.4 V Differential Output (Note 5) VOS Common Mode R L = 100 Ω 2.0 3.0 V Output Voltage (Note 5) |VOS –V OS | Difference In R L = 100 Ω 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, Current V IN = VCC or GND 200 500 µA V IN = 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 −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 N Package 13.89 mW/˚C, and M Package 9.80 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 EIA Specification RS-422 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 6 11 ns Input to Output Skew (Note 8) S1 Open 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 50% 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 . Comparison Table of Switching Characteristics into “LS-Type” Load(Note 11) VCC = 5V, TA = +25˚C, tr ≤ 6 ns, tf ≤ 6n s(Figures 4, 5, 6, 7, 8, 9) Symbol Parameter Conditions DS34C87 DS3487 Units Typ Max Typ Max tPLH ,tPHL Propagation Delay 6 10 10 15 ns Input to Output Skew (Note 8) 1.5 2.0 ns t THL ,tTLH Differential Output Rise 4 7 10 15 ns and Fall Times t PHZ Output Disable Time C L = 50 pF, RL = 200Ω , 8 11 17 25 ns (Note 9) S1 Closed, S2 Closed tPLZ Output Disable Time C L = 50 pF, RL = 200Ω , 7 10 15 25 ns (Note 9) S1 Closed, S2 Closed tPZH Output Enable Time C L = 50 pF, RL = ∞ , 1 11 91 12 5 n s S1 Open, S2 Closed tPZL Output Enable Time C L = 50 pF, RL = 200Ω , 1 42 11 52 5 n s S1 Closed, S2 Open Note 11:This table is provided for comparison purposes only. The values in this table for the DS34C87 reflect the performance of the device but are not tested or guaranteed. Note 12: ESD Rating: HBM (1.5 kΩ , 100 pF) Inputs≥ 1500V Outputs≥ 1000V EIAJ (0Ω , 200 pF) All Pins≥ 350V www.national.com3

Physical Dimensionsinches (millimeters) unless otherwise noted 16-Lead Molded Package Small Outline (M) Order Number DS34C87TM 16-Lead Molded Dual-In-Line Package (N) Order Number DS34C87TN www.national.com7

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 DS34C87T CMOS Quad TRI-STATE ™ 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.