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SN74HC21

更新时间： 2024-09-20 23:03:11

品牌	Logo	应用领域
德州仪器 - TI		输入元件
页数	文件大小	规格书
5页	80K
描述
DUAL 4-INPUT POSITIVE-AND GATES

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SN74HC21 数据手册

SN54HC21, SN74HC21

DUAL 4-INPUT POSITIVE-AND GATES

SCLS087C – DECEMBER 1982 – REVISED MAY 1997

SN54HC21 . . . J OR W PACKAGE

SN74HC21 . . . D OR N PACKAGE

(TOP VIEW)

Package Options Include Plastic

Small-Outline (D) and Ceramic Flat (W)

Packages, Ceramic Chip Carriers (FK), and

Standard Plastic (N) and Ceramic (J)

300-mil DIPs

description

These devices contain two independent 4-input

AND gates. They perform the Boolean function

10 2B

GND

A • B • C • D or Y

in positive logic.

SN54HC21 . . . FK PACKAGE

(TOP VIEW)

The SN54HC21 is characterized for operation

over the full military temperature range of –55°C

to 125°C. The SN74HC21 is characterized for

operation from –40°C to 85°C.

20 19

FUNCTION TABLE

(each gate)

INPUTS

OUTPUT

15 NC

9 10 11 12 13

NC – No internal connection

†

logic symbol

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the D, J, N, and W packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5

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SN74HC21 替代型号

型号	品牌	替代类型	描述	数据表
SN74HC21-Q1	TI	功能相似	DUAL 4-INPUT POSITIVE-AND GATE
SN54HC21	TI	功能相似	DUAL 4-INPUT POSITIVE-AND GATES

与SN74HC21相关器件

型号	品牌	获取价格	描述	数据表
SN74HC21D	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21D-00	TI	获取价格	HC/UH SERIES, DUAL 4-INPUT AND GATE, PDSO14
SN74HC21D3	TI	获取价格	IC,LOGIC GATE,DUAL 4-INPUT AND,HC-CMOS,SOP,14PIN,PLASTIC
SN74HC21D3	ROCHESTER	获取价格	AND Gate
SN74HC21DE4	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21DG4	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21DR	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21DRE4	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21DRG4	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES
SN74HC21DT	TI	获取价格	DUAL 4-INPUT POSITIVE-AND GATES