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54FCT573 Octal D-Type Latch with TRI-STATE Outputs

August 1998

54FCT573

Octal D-Type Latch with TRI-STATE

廬

Outputs

General Description

The 鈥橣CT573 is an octal latch with buffered common Latch

Enable (LE) and buffered common Output Enable (OE) in-

puts.

This device is functionally identical to the 鈥橣CT373 but has

different pinouts.

Features

n

Inputs and outputs on opposite sides of package allow

easy interface with microprocessors

n

Useful as input or output port for microprocessors

n

TTL input and output level compatible

n

CMOS power consumption

n

Functionally identical to 鈥橣CT373

n

TRI-STATE outputs for bus interfacing

n

Output sink capability of 32 mA, source capability of

12 mA

n

Standard Microcircuit Drawing (SMD) 5962-8863901

Ordering Code

Military

54FCT573DMQB

54FCT573FMQB

54FCT573LMQB

Package

Number

J20A

W20A

E20A

20-Lead Ceramic Dual-In-Line

20-Lead Cerpack

20-Lead Ceramic Leadless Chip Carrier, Type C

Package Description

Connection Diagram

Pin Assignment

for DIP and Cerpack

Pin Assignment

for LCC

DS100951-39

DS100951-1

Pin

Names

D

0

鈥揇

7

LE

OE

O

0

鈥揙

7

Data Inputs

Description

Latch Enable Input (Active HIGH)

TRI-STATE Output Enable Input

(Active LOW)

TRI-STATE Latch Outputs

TRI-STATE

廬

is a registered trademark of National Semiconductor Corporation.

漏 1999 National Semiconductor Corporation

DS100951

www.national.com

next

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