54ACQ244

Outputs

General Description

The ’ACQ/’ACTQ244 is an octal buffer and line driver de-

signed to be employed as a memory address driver, clock

driver and bus oriented transmitter or receiver which pro-

vides improved PC board density. The ACQ/ACTQ utilizes

NSC Quiet Series technology to guarantee quiet output

switching and improved dynamic threshold performance.

dershoot corrector in addition to a split ground bus for supe-

rior performance.

Features

n Guaranteed simultaneous switching noise level and

dynamic threshold performance

n Improved latch-up immunity

n TRI-STATE outputs drive bus lines or buffer memory

address registers

n Outputs source/sink 24 mA

n Faster prop delays than the standard ’AC/’ACT244

n 4 kV minimum ESD immunity

n Standard Microcircuit Drawing (SMD)

— ’ACTQ244: 5962-92186

— ’ACQ244: 5962-92176

Logic Symbol

Pin Names

Description

OE

TRI-STATE Output Enable Inputs

I

Inputs

O

Outputs

Connection Diagrams

IEE/IEC

DS100236-1

Pin Assignment

for DIP and Flatpak

DS100236-2

Pin Assignment

for LCC

DS100236-3

August 1998

© 1998 National Semiconductor Corporation

DS100236

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