DM74LS181

更新时间： 2024-11-05 23:00:43

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
7页	78K
描述
4-Bit Arithmetic Logic Unit

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数据手册

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DM74LS181 数据手册

October 1988

Revised April 2000

DM74LS181

4-Bit Arithmetic Logic Unit

General Description

The DM74LS181 is a 4-bit Arithmetic Logic Unit (ALU)

which can perform all the possible 16 logic operations on

two variables and a variety of arithmetic operations.

Features

■ Provides 16 arithmetic operations: add, subtract, com-

pare, double, plus twelve other arithmetic operations

■ Provides all 16 logic operations of two variables:

exclusive-OR, compare, AND, NAND, OR, NOR, plus

ten other logic operations

■ Full lookahead for high speed arithmetic operation on

long words

Ordering Code:

Order Number Package Number

Package Description

DM74LS181N

N24A

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.600 Wide

Logic Symbols

Connection Diagram

Active High Operands

Active Low Operands

Pin Descriptions

Pin Names

Description

A0–A3

B0–B3

S0–S3

Operand Inputs (Active LOW)

Function Select Inputs

Mode Control Input

C_n

Carry Input

F0–F3

A = B

Function Outputs (Active LOW)

Comparator Output

= Pin 24

Carry Generate Output (Active LOW)

Carry Propagate Output (Active LOW)

Carry Output

GND = Pin 12

C_n+4

DS009821

www.fairchildsemi.com

12 3 4 5 6 7

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与DM74LS181相关器件

型号	品牌	获取价格	描述	数据表
DM74LS181CW	FAIRCHILD	获取价格	Arithmetic Logic Unit, LS Series, 4-Bit, TTL, WAFER
DM74LS181N	FAIRCHILD	获取价格	4-Bit Arithmetic Logic Unit
DM74LS181N	NSC	获取价格	4-BIT ARITHMETIC LOGIC UNIT
DM74LS181N	ROCHESTER	获取价格	Arithmetic Logic Unit, LS Series, 4-Bit, TTL, PDIP24, 0.600 INCH, PLASTIC, MS-011, DIP-24
DM74LS189J/A+	ETC	获取价格	x4 SRAM
DM74LS189N/A+	ETC	获取价格	x4 SRAM
DM74LS189N/B+	ETC	获取价格	x4 SRAM
DM74LS190	NSC	获取价格	Synchronous 4-Bit Up/Down Counters with Mode Control
DM74LS190J	NSC	获取价格	IC,COUNTER,UP/DOWN,DECADE,LS-TTL,DIP,16PIN,CERAMIC
DM74LS190J	TI	获取价格	IC,COUNTER,UP/DOWN,DECADE,LS-TTL,DIP,16PIN,CERAMIC