Order this document by MC34C87/D SEMICONDUCTOR TECHNICAL DATA Product Preview P SUFFIX PLASTIC DIP CASE 648 CMOS 16 The MC34C87 is a quad differential line driver designed for digital data transmission over balanced lines. The MC34C87 meets all the requirements of standard EIA–422–A while retaining the low–power characteristics of CMOS. The MC34C87 accepts TTL or CMOS input levels and translates these to EIA–422–A output level. This part uses special output circuitry that enables the individual drivers to power down without loading down the bus. The MC34C87 also includes special circuitry which will set the outputs to a high impedance mode during power up or down, preventing spurious glitches. Each enable pin controls two drivers. The MC34C87 is pin compatible with the MC3487. All pins are protected against damage due to electrostatic discharges. 1 D SUFFIX SOG PACKAGE CASE 751B 16 1 ORDERING INFORMATION MC34C87P MC34C87D Plastic DIP SOG Package • • • • • • Maximum Power Supply Current: 3 mA 2000 V ESD Protection on the Inputs and the Outputs TTL/CMOS Input Compatible Typical Propagation Delay: 6 ns Typical Output Skew: 1 ns Meets VO = 6.0 V (and VO = – 0.25 V), VCC = 0 V, IO < 100 µA Requirement • Operation from Single 5 V Supply • High Impedance Mode for Outputs Connected to System Buses BLOCK DIAGRAM C/D CONTROL INPUT D 12 8 16 GND VCC INPUT C 15 14 INPUT B 9 13 10 INPUT A 7 11 6 4 1 5 2 3 OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT D2 D1 C2 C1 B2 B1 A2 A1 This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. REV 3 1993 Motorola, Inc. 1995 MOTOROLA MC34C87 1 TRUTH TABLE Control Input Input Non–Inverting Output Inverting Output L X Z Z H H H L L L H H X = Don’t Care Z = High Impedance H = High Logic State L = Low Logic State MAXIMUM RATINGS Rating Symbol Value Unit VCC 7 V DC Input Voltage Vin – 1.5 to VCC + 1.5 V DC Output Voltage* Vout – 0.5 to VCC + 0.5 V DC Output Current, per Pin Iout 150 mA DC VCC or GND Current, per Pin IDD 150 mA Storage Temperature Tstg – 65 to + 150 °C Power Dissipation PD 500 mW 2000 V Power Supply Voltage ESD (Human Body Model) This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid applications of any voltage higher than the maximum rated voltages to this high impedance circuit. For proper operation it is recommended that Vin and Vout be constrained to the range VSS ≤ (Vin or Vout) ≤ VDD. Reliability of operation is enhanced if unused inputs are tied to and appropriate logic voltage level (e.g., either VSS or VDD). * Power–on conditions. OPERATING CONDITIONS Rating Symbol Min Max Unit VCC 4.5 5.5 V DC Input Voltage Vin 0 VCC V Operating Temperature Range TA – 40 + 85 °C Input Rise and Fall Time tr, tf — 500 ns Power Supply Voltage DC CHARACTERISTICS (VCC = 4.5 to 5.5 V, TA = – 40 to + 85°C, unless otherwise stated) Symbol Min Typ Max Unit Input Voltage (Low Logic State) VIL — — 0.8 V Input Voltage (High Logic State) VIH 2.0 — — V Output Voltage (Low Logic State) Isink = 20 mA VOL — 0.3 0.5 V Output Voltage (High Logic State) Isource = – 20 mA VOH 2.5 2.8 — V Output Differential Voltage RL = 100 Ω (Note 1) VOD 2.0 — — V D(VOD) — — ± 0.4 V VOS — — 3.0 V D(VOS) — — ± 0.4 V Iin — — ± 1.0 µA Quiescent Supply Current Iout = 0 µA ICC — — 3.0 mA Output Short Circuit Current (Note 2) IOS – 30 – 100 – 150 mA IO(Z) — — ± 1.0 µA Ioxh Ioxl — — — — 100 – 100 µA Parameter Output Differential Voltage Difference RL = 100 Ω (Note 1) Output Offset Voltage RL = 100 Ω (Note 1) Output Offset Voltage Difference RL = 100 Ω (Note 1) Input Current Vin = VCC, GND, VIH or VIL Output Leakage Current (High–Z State) Vout = VCC or GND Output Leakage Current (Power Off) Vout = 6 V Vout = – 0.25 V NOTES: 1. See EIA specifications EIA–422–A for exact test conditions. 2. Only one output may be shorted at a time. MC34C87 2 MOTOROLA AC CHARACTERISTICS (VCC = 4.5 to 5.5 V, TA = – 40 to + 85°C, unless otherwise stated) Parameter Symbol Min Typ Max Unit Propagation Delay Input to Output (S1 Open) tPLH tPHL — 6 12 ns Output Skew (S1 Open)* Skew — 1.0 4 ns Differential Output Rise Time Fall Time (S1 Open) tTLH tTHL — 4 8 ns Output Enable Time (S1 Closed) tPZH tPZL — — 16 15 — — ns Output Disable Time (S1 Closed) tPHZ tPLZ — — 6 9 — — ns * Skew: difference in propagation delays between complementary outputs. AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS 3V— INPUT 0V 1.5 V 1.5 V tPLH 1.5 V 47 pF INPUT 49.9 Ω 499 Ω 47 pF — VOH OUTPUT A 1.5 V 1.5 V VOL SKEW tPHL S1 49.9 Ω 47 pF tPHL VOH 1.5 V — VOL 1.5 V OUTPUT B Figure 1. AC Test Circuit tPLH Figure 2. Propagation Delays and Skew Waveforms 3V— ENABLE INPUT 1.5 V 1.5 V 0V tPLZ OUTPUT A tPZL VOL + 0.5 V tPHZ OUTPUT B 3V— — 1.5 V 0.8 V VOL INPUT VOH 2.0 V — 1.5 V OUTPUT (DIFFERENTIAL) 0V tPZH VOH – 0.5 V Figure 3. Enable and Disable Times 90% 90% 10% 10% tTLH tTHL Figure 4. Differential Rise and Fall Times TYPICAL APPLICATIONS ENABLE + DATA – DATA OUTPUT Figure 5. Two–Wire Balanced Systems (EIA–422–A) MOTOROLA MC34C87 3 PACKAGE DIMENSIONS P SUFFIX PLASTIC DIP CASE 648–08 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. –A– 16 9 1 8 B F C DIM A B C D F G H J K L M S L S –T– SEATING PLANE K H G D M J 16 PL 0.25 (0.010) T A M M INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 D SUFFIX SOG PACKAGE CASE 751B–05 –A– 16 9 1 8 –B– P NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 8 PL 0.25 (0.010) M B S G R K F X 45 _ C –T– SEATING PLANE M D 16 PL 0.25 (0.010) M T B S A S J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. 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Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 MC34C87 4 ◊ *MC34C87/D* MC34C87/D MOTOROLA