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June 2004

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HIGH SPEED:

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LOW POWER DISSIPATION:

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HIGH NOISE IMMUNITY:

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SYMMETRICAL OUTPUT IMPEDANCE:

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BALANCED PROPAGATION DELAYS:

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WIDE OPERATING VOLTAGE RANGE:

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PIN AND FUNCTION COMPATIBLE WITH

54 SERIES 157

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SPACE GRADE-1: ESA SCC QUALIFIED

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50 krad QUALIFIED, 100 krad AVAILABLE ON

REQUEST

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NO SEL UNDER HIGH LET HEAVY IONS

IRRADIATION

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DEVICE FULLY COMPLIANT WITH

SCC-9408-057

DESCRIPTION

The M54HC157 is an high speed CMOS QUAD 2

CHANNEL MULTIPLEXER fabricated with silicon

These device consist of four 2-input digital

multiplexer with common select and strobe inputs.

When the STROBE input is held high, selection of

data is inhibited 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 are equipped with protection circuits

against static discharge and transient excess

voltage.

M54HC157

RAD-HARD QUAD 2 CHANNEL MULTIPLEXER

PIN CONNECTION

ORDER CODES

PACKAGE

FM

EM

DILC

M54HC157D

M54HC157D1

FPC

M54HC157K

M54HC157K1

DILC-16

FPC-16

Rev. 1