54ACQ573

General Description

The ’ACQ/’ACTQ573 is a high-speed octal latch with buff-

ered common Latch Enable (LE) and buffered common Out-

put Enable (OE) inputs. The ’ACQ/’ACTQ573 is functionally

identical to the ’ACQ/’ACTQ373 but with inputs and outputs

on opposite sides of the package. 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 Inputs and outputs on opposite sides of package allow

easy interface with microprocessors

n Outputs source/sink 24 mA

n Faster prop delays than standard ’ACT573

n 4 kV minimum ESD immunity

n Standard Microcircuit Drawing (SMD)

— ’ACTQ573: 5962-92194

— ’ACQ573: 5962-92180

Logic Symbols

Pin Names

Description

D

Data Inputs

LE

Latch Enable Input

OE

TRI-STATE Output Enable Input

O

TRI-STATE Latch Outputs

DS100242-1

IEEE/IEC

DS100242-2

August 1998

© 1998 National Semiconductor Corporation

DS100242

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