DM74ALS521

更新时间： 2024-09-14 22:56:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		比较器
页数	文件大小	规格书
5页	54K
描述
8-Bit Comparator

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数据手册

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DM74ALS521 数据手册

September 1986

Revised April 2000

DM74ALS520 • DM74ALS521

8-Bit Comparator

General Description

Features

These comparators perform an “equal to” comparison of

two 8-bit words with provision for expansion or external

enabling. The matching of the two 8-bit input plus a logic

LOW on the EN input produces the output A = B on the

DM74ALS520 and DM74ALS521. The DM74ALS520 and

DM74ALS521 have totem pole outputs for wire AND cas-

cading. Additionally, the DM74ALS520 is provided with B

input pull up termination resistors for analog or switch data.

■ Switching specifications at 50 pF

■ Switching specifications guaranteed over full tempera-

ture and V_CCrange

■ Advanced oxide-isolated, ion-implanted Schottky TTL

process

■ Functionally and pin for pin compatible with LS family

counterpart

■ Improved output transient handling capability

Ordering Code:

Ordering Code Package Number

Package Description

DM74ALS520WM

DM74ALS520N

DM74ALS521WM

SM74ALS521N

M20B

N20A

M20B

N20A

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

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

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

Connection Diagram

Function Table

Inputs

Output

Data

A = B

A ≠ B

A = B

H = HIGH Logic Level

L = LOW Logic Level

X = Don't Care

DS006114

www.fairchildsemi.com

12 3 4 5

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DM74ALS521N_NL	FAIRCHILD	获取价格	暂无描述
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DM74ALS521WM/B+	ETC	获取价格	Identity Comparator
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