FN3560 Rev 1.00

Page 8 of 9

September 1995

HCS139MS

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Propagation Delay Timing Diagram

Transition Timing Diagram

Propagation Delay Load Circuit

VOLTAGE LEVELS

PARAMETER

HCS

UNITS

VCC

4.50

V

VIH

4.50

V

VS

2.25

V

VIL

0

V

GND

0

V

VS

INPUT

OUTPUT

VIH

VSS

VOH

VOL

TPLH

TPHL

VS

OUTPUT

TTHL

80%

20%

80%

20%

VOH

VOL

TTLH

DUT

TEST

RL

POINT

CL = 50pF

RL = 500



CL