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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 574

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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-9203-054

DESCRIPTION

The M54HC574 is an high speed CMOS OCTAL

D-TYPE FLIP FLOP WITH 3-STATE OUTPUTS

INVERTING fabricated with sub-micron silicon

This 8 bit D-TYPE FLIP FLOP is controlled by a

clock input (CK) and an output enable input (OE).

On the positive transition of the clock, the Q

outputs will be set to the logic state that were

setup at the D inputs.

While the OE input is at low level, the eight outputs

will be in a normal logic state (high or low logic

level) and while OE is in high level the outputs will

be in a high impedance state.

The output control does not affect the internal

operation of flip-flops; that is, the old data can be

retained or the new data can be entered even

while the outputs are off.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

M54HC574

RAD-HARD OCTAL D-TYPE FLIP FLOP

WITH 3 STATE OUTPUT NON INVERTING

PIN CONNECTION

ORDER CODES

PACKAGE

FM

EM

DILC

M54HC574D

M54HC574D1

FPC

M54HC574K

M54HC574K1

Rev. 1

DILC-20

FPC-20