AM26LS31

SEMICONDUCTOR

TECHNICAL DATA

QUAD EIA–422 LINE DRIVER

WITH THREE–STATE OUTPUTS

PIN CONNECTIONS

Order this document by AM26LS31/D

PC SUFFIX

PLASTIC PACKAGE

CASE 648

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

Device

Operating

Temperature Range

Package

ORDERING INFORMATION

AM26LS31PC

MC26LS31D*

TA = 0 to +70°C

Plastic DIP

SO–16

11

10

Outputs C

9

6

5

Outputs D

13

14

Outputs A

3

2

8

7

4

1

12

15

Outputs B

Enable

VCC

Input C

Input D

Input A

16

Enable

Input B

Gnd

1

MOTOROLA ANALOG IC DEVICE DATA

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

EIA–422 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 EIA–422 driver.

The high impedance output state is assured during power down.

Representative Block Diagrams

Enable

Enable

Input

Non–Inverting

Outputs

Inverting

Output

Controls

TRUTH TABLE

Input

Control

lnputs

(E/E)

Non–Inverting

Output

Inverting

Output

H

L

X

H/L

H/L

L/H

H

L

Z

L

H

Z

* Note that the surface mount MC26LS31D device uses the same die as in the plastic DIP

© Motorola, Inc. 1995

L = Low Logic State

H = High Logic State

X = Irrelevant

Z = Third–State (High Impedance)