DM74LS283

更新时间： 2024-11-28 23:00:43

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
8页	160K
描述
4-Bit Binary Adders with Fast Carry

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DM74LS283 数据手册

June 1989

54LS283/DM54LS283/DM74LS283

4-Bit Binary Adders with Fast Carry

General Description

Features

Full-carry look-ahead across the four bits

These full adders perform the addition of two 4-bit binary

numbers. The sum (R) outputs are provided for each bit and

the resultant carry (C4) is obtained from the fourth bit.

These adders feature full internal look ahead across all four

bits. This provides the system designer with partial look-

ahead performance at the economy and reduced package

count of a ripple-carry implementation.

Systems achieve partial look-ahead performance with

the economy of ripple carry

Typical add times

Two 8-bit words 25 ns

Two 16-bit words 45 ns

Typical power dissipation per 4-bit adder 95 mW

Alternate Military/Aerospace device (54LS283) is avail-

able. Contact a National Semiconductor Sales Office/

Distributor for specifications.

The adder logic, including the carry, is implemented in its

true form meaning that the end-around carry can be accom-

plished without the need for logic or level inversion.

Connection Diagram

Dual-In-Line Package

TL/F/6421–1

Order Number 54LS283DMQB, 54LS283FMQB, 54LS283LMQB,

DM54LS283J, DM54LS283W, DM74LS283M or DM74LS283N

See NS Package Number E20A, J16A, M16A, N16E or W16A

1995 National Semiconductor Corporation

TL/F/6421

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

12 3 4 5 6 7 8

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型号	品牌	获取价格	描述	数据表
DM74LS283_98	FAIRCHILD	获取价格	4-Bit Binary Adders with Fast Carry
DM74LS283CW	FAIRCHILD	获取价格	暂无描述
DM74LS283J	TI	获取价格	IC,BINARY ADDER,LS-TTL,DIP,16PIN,CERAMIC
DM74LS283J/A+	TI	获取价格	IC,BINARY ADDER,LS-TTL,DIP,16PIN,CERAMIC
DM74LS283M	NSC	获取价格	4-Bit Binary Adders with Fast Carry
DM74LS283M	FAIRCHILD	获取价格	4-Bit Binary Adder with Fast Carry
DM74LS283MX	FAIRCHILD	获取价格	Binary Adder
DM74LS283N	FAIRCHILD	获取价格	4-Bit Binary Adder with Fast Carry
DM74LS283N	NSC	获取价格	4-Bit Binary Adders with Fast Carry
DM74LS283N/A+	TI	获取价格	IC,BINARY ADDER,LS-TTL,DIP,16PIN,PLASTIC