54ACT521DMQB Datasheet

IC型號：
54ACT521DMQB
PDF描述：
IDENTITY COMPARATOR|ACT-CMOS|DIP|20PIN|CERAMIC
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10頁
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54AC521

鈥?/div>

54ACT521 8-Bit Identity Comparator

September 1998

54AC521

鈥?/div>

54ACT521

8-Bit Identity Comparator

General Description

The AC/ACT521 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

reduced by 50%

Compares two 8-bit words in 6.5 ns typ

Expandable to any word length

Outputs source/sink 24 mA

ACT521 has TTL-compatible inputs

Standard microcircuit Drawing (SMD)

54AC521: 5962-90985

54ACT521: 5962-89793

Logic Symbols

Connection Diagram

Pin Assignment

for DIP and CERPACK

DS100291-1

IEEE/IEC

DS100291-2

Pin Assignment

for LCC

DS100291-4

DS100291-3

Pin Descriptions

Pin Names

鈥揂

鈥揃

A = B

Word A Inputs

Word B Inputs

Expansion or Enable Input

Identity Output

Description

FACT

鈩?/div>

is a trademark of Fairchild Semiconductor Corporation.

漏 1998 National Semiconductor Corporation

DS100291

www.national.com

型號

版本

描述

廠商

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QUADRUPLE 2-INPUT POSITIVE-NAND GATES

TI

54AC00
54AC00

英文版

Quad 2-Input NAND Gate

54AC00
54AC00

英文版

Quad 2-Input NAND Gate

NSC

54AC00
54AC00

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Quad 2-Input NAND Gate

INTERSIL [...

54AC00
54AC00

英文版

Quad 2-Input NAND Gate

NSC [Natio...

54AC00
54AC00

英文版

QUADRUPLE 2-INPUT POSITIVE-NAND GATES

TI [Texas ...

54AC00
54AC02

英文版

Quad 2-Input NOR Gate

NSC

54AC02
54AC02

英文版

Quad 2-Input NOR Gate

NSC [Natio...

54AC02
54AC04

英文版

Hex Inverter

NSC

54AC04
54AC04

英文版

Hex Inverter

NSC [Natio...

54AC04
54AC05

英文版

Hex Inverter with Open Drain Outputs

NSC

54AC05
54AC05

英文版

Hex Inverter with Open Drain Outputs

NSC [Natio...

54AC05
54AC08

英文版

Quad 2-Input AND Gate

NSC

54AC08
54AC08

英文版

Quad 2-Input AND Gate

NSC [Natio...

54AC08
54AC10

英文版

Triple 3-Input NAND Gate

NSC

54AC10
54AC10

英文版

Triple 3-Input NAND Gate

NSC [Natio...

54AC10
54AC11

英文版

Triple 3-Input AND Gate

NSC

54AC11
54AC11

英文版

Triple 3-Input AND Gate

NSC [Natio...

54AC11

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