54ACTQ14

Quiet Series Hex Inverter with Schmitt Trigger Input

General Description

The ’ACTQ14 contains six inverter gates each with a Schmitt

trigger input. They are capable of transforming slowly chang-

ing input signals into sharply defined, jitter-free output sig-

nals. In addition, they have a greater noise margin than con-

ventional inverters.

The ’ACTQ14 utilizes NSC Quiet Series Technology to guar-

antee quiet output switching and improve dynamic threshold

control and undershoot corrector in addition to a split ground

bus for superior performance.

The ’ACTQ14 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 Guaranteed simultaneous switching noise level and

dynamic threshold performance

n Improved latch-up immunity

n 4 kV minimum ESD performance

n Outputs source/sink 24 mA

n Standard Microcircuit Drawing (SMD) 5962-92183

Logic Symbol

Function Table

Input

Output

AO

LH

HL

Pin Names

Description

I

n

Inputs

O

n

Outputs

Connection Diagrams

IEEE/IEC

DS010911-3

Pin Assignment

for DIP and Flatpak

DS010911-4

Pin Assignment

for LCC

DS010911-5

September 1998

© 1998 National Semiconductor Corporation

DS010911

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