(S) MOTOROLA Quad Line Driver with NAND Enabled Three-State Outputs The Motorola AM26LS31 is a quad differential line driver intended for digital data transmission over balanced lines. It meets all the requirements of ElA422 Standard and Federal Standard 1020. The AM26LS31 provides an enable/disable function common to all four drivers as opposed to the split enables on the MC3487 ElA422 driver. The high impedance output state is assured during power down. Full EIA-422 Standard Compliance Single +5.0 V Supply Meets Full Vo = 6.0 V, Vcc =0 V, lo < 100 nA Requirement Output Short Circuit Protection Complementary Outputs for Balanced Line Operation High Output Drive Capability Advanced LS Processing PNP Inputs for MOS Compatibility Representative Block Diag Input Inverting Enable Output Controls Enable TRUTH TABLE Input npate Nominverting | inverting (E/E) Output Output H H/L H L L HL L H x UH Zz Zz L = Low Logic State X = Irrelevant H = High Logic State Z = Third-State (High Impedance) AM26LS31 QUAD EIA-422 LINE DRIVER WITH THREE-STATE OUTPUTS SEMICONDUCTOR TECHNICAL DATA PC SUFFIX PLASTIC PACKAGE CASE 648 PIN CONNECTIONS inputA [7] 16) Voc @ [75] Input D Outputs A fe] 4 Outputs D Enable [4] 13 GE] 12] Enable Outputs B [e] i Outputs C Input B Z 10 Gnd 8 r2] input c ORDERING INFORMATION * Note that the surface mount MC26LS31D device uses the same die as in the plastic DIP AM26LS31DC device, but with an MC prefix to prevent confusion with the package suffix. Operating Device Temperature Range | Package AM26LS31PC Plastic DIP Ta = 0 to +70C MC26LS31D* SO-16 MB 6367253 0101779 9bl 7-24 MOTOROLA ANALOG IC DEVICE DATA AM26LS31 MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage Voc 8.0 Vde Input Voltage Vi 5.5 Vdc Operating Ambient Temperature Range Ta Oto + 70 i OF Operating Junction Temperature Range Ty 150 C Storage Temperature Range Tstg 65 to + 150 C ELECTRICAL CHARACTERISTICS (Unless otherwise noted, specifications apply 4.75 V < Voc < 5.25 V and 0C < Ta < 70C. Typical values measured at Voc = 5.0 V, and Ta = 25C.) Characteristic Symbol Min Typ Max Unit Input Voltage Low Logic State Vit - - 0.8 Vde Input Voltage High Logic State - Vde Input Current Low Logic State 360 pA (VIL = 0.4 V) Input Current High Logic State HA (IH = 2.7 V) +20 (ViH = 7.0 V) +100 Input Clamp Voltage -1.5 v (IK = 18 MA) Output Voltage Low Logic State 0.5 Vv (lo = 20 mA) Output Voltage High Logic State - Vv (loH = -20 mA) Output Short Circuit Current 150 mA (ViH = 2.0 V) Note 4 Output Leakage Current Hi-Z State HA (VOL = 0.5 V, VIL(E) = 0.8 V, ViIH(E) = 2.0, - - ~20 (VOH = 2.5 V, VIL(E) = 0.8 V, VIH(E) = 2.0 - - +20 Output Leakage Current Power OFF LA (VOH = 6.0 V, Voc = 0 V) - - +100 WoL =- 0.25 V, Voc = 0V),, - ~ 100 Output Offset Voltage Ditters Vos-Vos - - +0.4 Vv Output Differential Voltage, Note 2 Vop 2.0 - - Output Differential Voltage Difference, Note 2 lAVopl - - +04 v Power Supply Current Iocx - 60 80 mA {Output Disabled) Note 3 NOTES: 1. Only one output may be shorted at a time. 2. See EIA Specification ELA422 for exact test conditions. 3. Circuit in three-state condition. SWITCHING CHARACTERISTICS (Vcc = 5.0 V, Ta = 25C unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Propagation Delay Times ns High to Low Output {PHL - - 20 Low to High Output tPLH - - 20 Output Skew - - 6.0 ns Propagation Delay Control to Output ns (C1, = 10 pF, Ry, = 75 @ to Gnd) tPHZ(E) - - 30 (CL = 10 pF, Ry = 180 Q to Voc) tPLZ(E) - ~ 35 (CL, = 30 pF, RL = 75 Q to Gnd) tPZH(E) - ~ 40 (CL = 30 pF, Rl = 180 2 to Voc) tPZL(E) - - 45 M@@ 63672535 0101780 643 MOTOROLA ANALOG IC DEVICE DATA 7-25 AM26LS31 Figure 1. ThreeState Enable Test Circuit and Waveforms 3.0 V or Gnd To Scope To Scope (Input) Input Output Pulse generator characteristics Open for tpzy4(E) Test Only 2)=502 PAR 1.0 MHz AAA O +5V 50% Duty Cycle 180 tTLH: tTHL = 6 ns Ena Pulse 5 L Generator s R,_ - See Test Table and Jig Capacitance. See Test Table. 30V You Output t J 4.0 Control 13V input {Enable} 0 tpHZ(e) Os =15V Lz) ale Output ov VoL Figure 2. Propaga' fut to Output Waveforms and Test Circuit oe) 50v Pulse generator characteristics = 2) =502 PRA < 1.0 MHz = = 50% Duty Cycle Cy Includes Probe and Jig Capacitance tty: trHL < 6 ns ______ 3.0 y mput Y isv ML av ov toy, ool r| 'PLH Vou Output 13V 13V Vou av tpLH om ad {PHL Vou Output 1av 13 You ov MB 6367253 0101761 51T 7-26 MOTOROLA ANALOG IC DEVICE DATA