Datasheet > 74LS243

74LS243

更新时间： 2024-11-17 22:53:15

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
5页	56K
描述
Quadruple Bus Transceiver

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数据手册

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74LS243 数据手册

August 1986

Revised January 2000

DM74LS243

Quadruple Bus Transceiver

General Description

This four data line transceiver is designed for asynchro-

nous two-way communications between data buses. It can

be used to drive terminated lines down to 133Ω.

Features

■ Two-way asynchronous communication between data

buses

■ PNP inputs reduce DC loading on bus line

■ Hysteresis at data inputs improves noise margin

Ordering Code:

Order Number Package Number

Package Description

DM74LS243M

DM74LS243N

M14A

N14A

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow

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

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

Connection Diagram

Function Table

Control

Inputs

Data Port

Status

G AB

GBA

(Note 1)

ISOLATED

I = Input

O = Output

H = HIGH Logic Level

L = LOW Logic Level

Note 1: Possibly destructive oscillation may occur if the transceivers are

enabled in both directions at once.

DS006412

www.fairchildsemi.com

12 3 4 5

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与74LS243相关器件

型号	品牌	获取价格	描述	数据表
74LS244	TI	获取价格	OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
74LS244	HITACHI	获取价格	Octal Buffers/Line Drivers/Line Receivers(non inverted three-state outputs)
74LS244	ONSEMI	获取价格	LOW POWER SCHOTTKY
74LS244	MITSUBISHI	获取价格	OCTAL BUFFER/LINE DRIVERS WITH 3-STATE OUTPUT(NONINVERTED)
74LS244	FAIRCHILD	获取价格	Octal 3-STATE Buffer/Line Driver/Line Receiver
74LS244DC	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, True Output, TTL, CDIP20,
74LS244DCQM	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, True Output, TTL, CDIP20,
74LS244FCQR	FAIRCHILD	获取价格	Bus Driver, 2-Func, 4-Bit, True Output, TTL, CDFP20,
74LS244N	NXP	获取价格	IC LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20, PLASTIC, DIP-20, Bus Driver/Transcei
74LS244PC	ETC	获取价格	Dual 4-Bit Non-Inverting Buffer/Driver