MC74HC242

更新时间： 2024-11-24 21:53:19

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		总线收发器
页数	文件大小	规格书
5页	122K
描述
Quad 3-State Bus Transceiver

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数据手册

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MC74HC242 数据手册

SEMICONDUCTOR TECHNICAL DATA

High–Performance Silicon–Gate CMOS

The MC74HC242 is identical in pinout to the LS242. The device inputs

are compatible with Standard CMOS outputs; with pullup resistors, they

are compatible with LSTTL outputs.

N SUFFIX

PLASTIC PACKAGE

CASE 646–06

This quad bus transceiver is designed for asynchronous two–way

communications between data buses. The states of the Output Enables

(A–to–B Enable and B–to–A Enable) determine both the direction of data

flow (from A to B or from B to A) and the modes of the Data Ports (input,

output, or high–impedance).

ORDERING INFORMATION

MC74HCXXXN Plastic

• Output Drive Capability: 15 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS and TTL

• Operating Voltage Range: 2 to 6V

FUNCTION TABLE

Control Inputs

A–to–B B–to–A

Data Port Status

• Low Input Current: 1µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance With the JEDEC Standard No. 7A Requirements

• Chip Complexity: 130 FETs or 32.5 Equivalent Gates

Enable

LOGIC DIAGRAM

I = Input; O = Output, O = Inverting Output

Z = High Impedance

A Data

Port

B Data

Port

Pin 14 = VCC

Pin 7 = GND

Pins 2, 12 = No Connection

A–TO–B ENABLE

B–TO–A ENABLE

Output

EnableS

Pinout: 14–Lead Plastic Package (Top View)

B–to–A

Enable

A–to–B NC

Enable

GND

NC = No Connection

10/95

Motorola, Inc. 1995

REV 6

12 3 4 5

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与MC74HC242相关器件

型号	品牌	获取价格	描述	数据表
MC74HC242D	ETC	获取价格	4-Bit Bus Transceiver
MC74HC242DD	ETC	获取价格	4-Bit Bus Transceiver
MC74HC242DDS	MOTOROLA	获取价格	Bus Driver/Transceiver, 1-Func, 4-Bit, Inverted Output, CMOS, PDSO14
MC74HC242DS	ETC	获取价格	4-Bit Bus Transceiver
MC74HC242J	MOTOROLA	获取价格	Bus Driver/Transceiver, 1-Func, 4-Bit, Inverted Output, CMOS, CDIP14
MC74HC242JDS	MOTOROLA	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,HC-CMOS,DIP,14PIN,CERAMIC
MC74HC242JS	MOTOROLA	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,HC-CMOS,DIP,14PIN,CERAMIC
MC74HC242N	MOTOROLA	获取价格	Quad 3-State Bus Transceiver
MC74HC242ND	MOTOROLA	获取价格	HC/UH SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP14, PLASTIC, DIP-14
MC74HC242NDS	ETC	获取价格	4-Bit Bus Transceiver