DS75160A/DS75161A

IEEE-488 GPIB Transceivers

General Description

This family of high-speed-Schottky 8-channel bi-directional

transceivers is designed to interface TTL/MOS logic to the

IEEE Standard 488-1978 General Purpose Interface Bus

(GPIB). PNP inputs are used at all driver inputs for minimum

loading, and hysteresis is provided at all receiver inputs for

added noise margin. The IEEE-488 required bus termination

is provided internally with an active turn-off feature which dis-

connects the termination from the bus when V

The General Purpose Interface Bus is comprised of 16 sig-

nal lines — 8 for data and 8 for interface management. The

data lines are always implemented with DS75160A, and the

management lines are either implemented with DS75161A in

a single-controller system.

Features

n 8-channel bi-directional non-inverting transceivers

output design

n Meets IEEE Standard 488-1978

n High-speed Schottky design

n Low power consumption

n High impedance PNP inputs (drivers)

n 500 mV (typ) input hysteresis (receivers)

n On-chip bus terminators

n Pin selectable open collector mode on DS75160A driver

outputs

n Accommodates multi-controller systems

Connection Diagrams

Dual-In-Line Package

DS005804-1

Top View

Order Number DS75160AN or DS75160AWM

See NS Package Number M20B or N20A

Dual-In-Line Package

DS005804-16

Order Number DS75161AN or DS75161AWM

See NS Package Number M20B or N20B

May 1999

© 1999 National Semiconductor Corporation

DS005804

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