Datasheet > SN54ALS21A_18

SN54ALS21A_18

更新时间： 2024-11-26 02:58:19

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	87K
描述
DUAL 4-INPUT POSITIVE-AND GATES

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SN54ALS21A_18 数据手册

SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21

DUAL 4-INPUT POSITIVE-AND GATES

SDAS085B – APRIL 1982 – REVISED DECEMBER 1994

SN54ALS21A, SN54AS21 . . . J PACKAGE

SN74ALS21A, SN74AS21 . . . D OR N PACKAGE

(TOP VIEW)

• Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) 300-mil DIPs

description

These devices contain two independent 4-input

positive-AND gates. They perform the Boolean

functions Y = A • B • C • D or Y = A + B + C + D

in positive logic.

GND

The SN54ALS21A and SN54AS21 are

characterized for operation over the full military

temperature range of –55°C to 125°C. The

SN74ALS21A and SN74AS21 are characterized

for operation from 0°C to 70°C.

SN54ALS21A, SN54AS21 . . . FK PACKAGE

(TOP VIEW)

20 19

FUNCTION TABLE

(each gate)

INPUTS

OUTPUT

9 10 11 12 13

NC – No internal connection

†

logic symbol

logic diagram (positive logic)

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and

IEC Publication 617-12.

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

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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