DM74ALS640

更新时间： 2024-10-29 22:56:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		总线收发器
页数	文件大小	规格书
4页	51K
描述
Inverting Octal Bus Transceiver

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数据手册

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DM74ALS640 数据手册

August 1985

Revised February 2000

DM74ALS640A

Inverting Octal Bus Transceiver

General Description

Features

This inverting octal bus transceiver is designed for asyn-

chronous two-way communication between data busses.

This device transmits data from the A bus to the B bus or

from the B bus to the A bus depending upon the level at the

direction control (DIR) input. The enable input (G) can be

used to disable the device so the busses are effectively

isolated.

■ Advanced Oxide-isolated Ion-implanted Schottky TTL

process

■ Switching performance is guaranteed over full tempera-

ture and V_CCsupply range

■ Switching performance specified at 50 pF

■ PNP input design reduces input loading

Ordering Code:

Order Number

DM74ALS640AWM

DM74ALS640AN

Package Number

M20B

Package Description

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

N20A

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Logic Diagram

Function Table

Control

Inputs

Operation

DIR

B Data to A Bus

A Data to B Bus

Isolation

L = LOW Logic Level

H = HIGH Logic Level

X = Either LOW or HIGH Logic Level

DS008640

www.fairchildsemi.com

12 3 4

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与DM74ALS640相关器件

型号	品牌	获取价格	描述	数据表
DM74ALS640A	FAIRCHILD	获取价格	Inverting Octal Bus Transceiver
DM74ALS640AN	FAIRCHILD	获取价格	Inverting Octal Bus Transceiver
DM74ALS640AN/A+	ETC	获取价格	Single 8-Bit Inverting Bus Transceiver
DM74ALS640AN/B+	TI	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,ALS-TTL,DIP,20PIN,PLASTIC
DM74ALS640AWM	FAIRCHILD	获取价格	Inverting Octal Bus Transceiver
DM74ALS640AWM/A+	ETC	获取价格	Single 8-Bit Inverting Bus Transceiver
DM74ALS640AWM/B+	TI	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,ALS-TTL,SOP,20PIN,PLASTIC
DM74ALS640AWM_NL	FAIRCHILD	获取价格	暂无描述
DM74ALS640AWMX	FAIRCHILD	获取价格	Single 8-Bit Inverting Bus Transceiver
DM74ALS640AWMX_NL	FAIRCHILD	获取价格	Bus Transceiver, ALS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20, 0.300 INCH, MS-0