54AC157

Quad 2-Input Multiplexer

General Description

The ’AC/’ACT157 is a high-speed quad 2-input multiplexer.

Four bits of data from two sources can be selected using the

common Select and Enable inputs. The four outputs present

the selected data in the true (noninverted) form. The ’AC/

’ACT157 can also be used as a function generator.

Features

n Outputs source/sink 24 mA

n ’ACT157 has TTL-compatible inputs

n Standard Microcircuit Drawing (SMD)

— ’AC157: 5962-89539

— ’ACT157: 5962-89688

Logic Symbols

Pin Names

Description

I

Source 0 Data Inputs

I

Source 1 Data Inputs

E

Enable Input

S

Select Input

Z

Outputs

Connection Diagrams

DS100272-1

IEEE/IEC

DS100272-2

Pin Assignment

for DIP and Flatpak

DS100272-3

Pin Assignment

for LCC

DS100272-4

July 1998

© 1998 National Semiconductor Corporation

DS100272

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