54FCT521 datasheet(1/8 Pages) NSC

Part #	54FCT521

Description	8-Bit Identity Comparator

PDF	8 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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54FCT521

8-Bit Identity Comparator

General Description

The ’FCT521 is an expandable 8-bit comparator. It com-

pares two words of up to eight bits each and provides a LOW

output when the two words match bit for bit. The expansion

input I

A = B also serves as an active LOW enable input.

Features

n Expandable to any word length

n Outputs sink capability of 32mA, source capability of 12

mA

n TTL input and output level compatible

n CMOS power consumption

n Standard microcircuit Drawing (SMD) 5962-8854301

Logic Symbols

Connection Diagram

Pin Descriptions

Pin Names

Description

A0–A7

Word A Inputs

B0–B7

Word B Inputs

TA = B

Expansion or Enable Input

OA = B

Identity Output

FACT™ is a trademark of Fairchild Semiconductor Corporation.

DS100968-1

IEEE/IEC

DS100968-4

Pin Assignment

for DIP and CERPACK

DS100968-2

Pin Assignment

for LCC

DS100968-3

September 1998

DS100968

www.national.com

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54FCT521 Datasheet(PDF) 1 Page - National Semiconductor (TI)

54FCT521 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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