54AC14

Hex Inverter with Schmitt Trigger Input

General Description

The ’AC14 contains six inverter gates each with a Schmitt

trigger input. The ’AC14 contains six logic inverters which ac-

cept standard CMOS input signals and provide standard

CMOS output levels. They are capable of transforming

slowly changing input signals into sharply defined, jitter-free

output signals. In addition, they have a greater noise margin

than conventional inverters.

The ’AC14 has hysteresis between the positive-going and

negative-going input thresholds (typically 1.0V) which is de-

termined internally by transistor ratios and is essentially in-

sensitive to temperature and supply voltage variations.

Features

n Outputs source/sink 24 mA

n Standard Military Drawing (SMD)

— ’AC14: 5962-87624

Logic Symbol

Function Table

Input

Output

AO

LH

HL

IEEE/IEC

DS100263-1

July 1998

© 1998 National Semiconductor Corporation

DS100263

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