TLF9545

May 1995

54F74F521

8-Bit Identity Comparator

General Description

The ’F521 is an expandable 8-bit comparator It compares

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

output when the two words match bit for bit The expansion

Features

Y

Compares two 8-bit words in 65 ns typ

Y

Expandable to any word length

Y

20-pin package

Commercial

Military

Package

Package Description

Number

74F521PC

N20A

20-Lead (0300 Wide) Molded Dual-In-Line

54F521DM (Note 2)

J20A

20-Lead Ceramic Dual-In-Line

74F521SC (Note 1)

M20B

20-Lead (0300 Wide) Molded Small Outline JEDEC

74F521SJ (Note 1)

M20D

20-Lead (0300 Wide) Molded Small Outline EIAJ

74F521MSA (Note 1)

MSA20

20-Lead Molded Shrink Small Outline EIAJ type II

Note 1

Devices also available in 13

Note 2

Logic Symbols

TLF9545 – 1

IEEEIEC

TLF9545 – 4

TRI-STATE

is a registered trademark of National Semiconductor Corporation

C1995 National Semiconductor Corporation

RRD-B30M75Printed in U S A