74AC157

QUAD 2 CHANNEL MULTIPLEXER

PRELIMINARY DATA

May 1997

s

s

LOW POWER DISSIPATION:

s

HIGH NOISE IMMUNITY:

s

50

Ω TRANSMISSION LINE DRIVING

CAPABILITY

s

SYMMETRICAL OUTPUT IMPEDANCE:

s

BALANCED PROPAGATION DELAYS:

s

OPERATING VOLTAGE RANGE:

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 157

s

IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC157 is an high-speed CMOS QUAD

2-CHANNEL

MULTIPLEXER

fabricated

with

sub-micron silicon gate and double-layer metal

wiring C

power

applications

maintaining

high

speed

operation similar to equivalent Bipolar Schottky

TTL.

It consists of four 2-input digital multiplexers with

common select and strobe inputs. It is a

non-inverting multiplexer. When the STROBE

input is held high selection of data is inhibit and

all the outputs become low. The SELECT

decoding determines whether the A or B inputs

get routed to their corresponding Y outputs.

All

inputs and

outputs

are

equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

M

(Micro Package)

B

(Plastic Package)

ORDER CODES :

74AC157B

74AC157M

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