74AC521

更新时间： 2024-09-14 22:53:11

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		比较器
页数	文件大小	规格书
8页	83K
描述
8-Bit Identity Comparator

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

74AC521 数据手册

November 1988

Revised November 1999

74AC521 • 74ACT521

8-Bit Identity Comparator

General Description

Features

The AC/ACT521 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 input I_{A = B}also serves as an active LOW enable

■ I_CCreduced by 50%

■ Compares two 8-bit words in 6.5 ns typ

■ Expandable to any word length

■ 20-pin package

input.

■ Outputs source/sink 24 mA

■ ACT521 has TTL-compatible inputs

Ordering Code:

Order Number Package Number

Package Description

74AC521SC

74AC521SJ

74AC521PC

74ACT521SC

74ACT521SJ

74ACT521PC

M20B

M20D

N20A

M20B

M20D

N20A

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering table.

Logic Symbols

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

Description

Word A Inputs

Word B Inputs

A₀–A₇

B₀–B₇

T_{A = B}

O_{A = B}

Expansion or Enable Input

Identity Output

FACT is a trademark of Fairchild Semiconductor Corporation.

DS009964

www.fairchildsemi.com

12 3 4 5 6 7 8

中文翻译

下载PDF

与74AC521相关器件

型号	品牌	获取价格	描述	数据表
74AC521DC	TI	获取价格	AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDIP20, CERAMIC, DIP-20
74AC521FC	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CDFP20, CERAMIC, FP-20
74AC521FC	TI	获取价格	AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDFP20
74AC521FCQR	TI	获取价格	AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CDFP20, CERAMIC, FP-20
74AC521FCQR	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CDFP20, CERAMIC, FP-20
74AC521FCT	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CDFP20, CERAMIC, FP-20
74AC521FCX	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CDFP20, CERAMIC, FP-20
74AC521FCXR	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CDFP20, CERAMIC, FP-20
74AC521LCQR	TI	获取价格	IC AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, CQCC20, CERAMIC, LCC-20, Arithme
74AC521LCT	FAIRCHILD	获取价格	Identity Comparator, AC Series, 8-Bit, Inverted Output, CMOS, CQCC20, CERAMIC, LCC-20