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54LS21

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54LS21 数据手册

June 1989

54LS21/DM54LS21/DM74LS21 Dual 4-Input AND Gates

General Description

This device contains two independent gates each of which

performs the logic AND function.

Features

Alternate Military/Aerospace device (54LS21) is avail-

able. Contact a National Semiconductor Sales Office/

Distributor for specifications.

Connection Diagram

Dual-In-Line Package

TL/F/6356–1

Order Number 54LS21DMQB, 54LS21FMQB, 54LS21LMQB,

DM54LS21J, DM54LS21W, DM74LS21M or DM74LS21N

See NS Package Number E20A, J14A, M14A, N14A or W14B

Function Table

ABCD

Inputs

Output

High Logic Level

Low Logic Level

Either Low or High Logic Level

1995 National Semiconductor Corporation

TL/F/6356

RRD-B30M105/Printed in U. S. A.

12 3 4 5 6

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型号	品牌	获取价格	描述	数据表
54LS21/BCAJC	MOTOROLA	获取价格	AND Gate, LS Series, 2-Func, 4-Input, TTL, CDIP14, CERDIP-14
54LS21/BDBJC	MOTOROLA	获取价格	AND Gate, TTL, CDFP14
54LS21DM	ETC	获取价格	DUAL 4-INPUT POSITIVE AND GATE
54LS21DMQB	TI	获取价格	LS SERIES, DUAL 4-INPUT AND GATE, CDIP14, CERAMIC, DIP-14
54LS21FK	TI	获取价格	LS SERIES, DUAL 4-INPUT AND GATE, CQCC20
54LS21FM	FAIRCHILD	获取价格	AND Gate, TTL, CDFP14,
54LS21FMQB	TI	获取价格	LS SERIES, DUAL 4-INPUT AND GATE, CDFP14, CERAMIC, FP-14
54LS21J	ROCHESTER	获取价格	LS SERIES, DUAL 4-INPUT AND GATE, CDIP14
54LS21J	TI	获取价格	IC LS SERIES, DUAL 4-INPUT AND GATE, CDIP14, Gate
54LS21J03	RAYTHEON	获取价格	Gate,