54ACQ240

Outputs

General Description

The ’ACQ/’ACTQ240 is an inverting octal buffer and line

driver designed to be employed as a memory address driver,

clock driver and bus oriented transmitter or receiver which

provides improved PC board density. The ’ACQ/’ACTQ uti-

lizes NSC Quiet Series technology to guarantee quiet output

switching and improve 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 Inverting TRI-STATE outputs drive bus lines or buffer

memory address registers

n Outputs source/sink 24 mA

n Faster prop delays than the standard ’ACT240

n 4 kV minimum ESD immunity

n Standard Microcircuit Drawing (SMD)

’ACTQ240: 5962-92184

Logic Symbol

Pin Names

Description

OE

TRI-STATE Output Enable Inputs

I

Inputs

O

Outputs

Connection Diagrams

IEEE/IEC

DS100235-1

Pin Assignment

for DIP and Flatpak

DS100235-2

Pin Assignment

for LCC

DS100235-3

February 1999

© 1999 National Semiconductor Corporation

DS100235

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