Datasheet > MC74ACT257DG

MC74ACT257DG

更新时间： 2024-11-12 01:10:51

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
9页	101K
描述
Quad 2-Input Multiplexer with 3-State Outputs

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替代型号

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MC74ACT257DG 数据手册

MC74AC257, MC74ACT257

Quad 2-Input Multiplexer

with 3-State Outputs

The MC74AC257/74ACT257 is a quad 2−input multiplexer with

3−state outputs. Four bits of data from two sources can be selected

using a Common Data Select input. The four outputs present the

selected data in true (noninverted) form. The outputs may be switched

to a high impedance state by placing a logic HIGH on the common

Output Enable (OE) input, allowing the outputs to interface directly

with bus−oriented systems.

www.onsemi.com

MARKING

DIAGRAMS

• Multiplexer Expansion by Tying Outputs Together

• Noninverting 3−State Outputs

SOIC−16

D SUFFIX

CASE 751B

xxx257G

AWLYWW

• Outputs Source/Sink 24 mA

• ′ACT257 Has TTL Compatible Inputs

• These are Pb−Free Devices

xxx

257

TSSOP−16

DT SUFFIX

CASE 948F

ALYWG

xxx

= AC or ACT

= Assembly Location

WL or L = Wafer Lot

= Year

WW or W = Work Week

G or G

= Pb−Free Package

GND

(Note: Microdot may be in either location)

Figure 1. Pinout: 16−Lead Packages Conductors

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

Publication Order Number:

March, 2015 − Rev. 8

MC74AC257/D

12 3 4 5 6 7...9

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MC74ACT257DG 替代型号

型号	品牌	替代类型	描述	数据表
MC74ACT257D	ONSEMI	完全替代	Quad 2−Input Multiplexer with 3−State Outputs
74ACT157MTCX	FAIRCHILD	类似代替	2-Input Digital Multiplexer
74ACT257SC	FAIRCHILD	类似代替	Quad 2-Input Multiplexer with 3-STATE Outputs

与MC74ACT257DG相关器件

型号	品牌	获取价格	描述	数据表
MC74ACT257DR	MOTOROLA	获取价格	ACT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, PLASTIC, SOIC-16
MC74ACT257DR2	ONSEMI	获取价格	Quad 2−Input Multiplexer with 3−State Outputs
MC74ACT257DR2G	ONSEMI	获取价格	Quad 2-Input Multiplexer with 3-State Output, SOIC 16 LEAD, 2500-REEL
MC74ACT257DT	ONSEMI	获取价格	Quad 2−Input Multiplexer with 3−State Outputs
MC74ACT257DTR2	ONSEMI	获取价格	Quad 2−Input Multiplexer with 3−State Outputs
MC74ACT257DTR2G	ONSEMI	获取价格	MULTIPLEXER
MC74ACT257M	ONSEMI	获取价格	Quad 2−Input Multiplexer with 3−State Outputs
MC74ACT257MEL	ONSEMI	获取价格	Quad 2−Input Multiplexer with 3−State Outputs
MC74ACT257MELG	ONSEMI	获取价格	ACT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, PLASTIC, EIAJ-16
MC74ACT257ML1	ONSEMI	获取价格	IC,LOGIC MUX,QUAD,2-INPUT,ACT-CMOS,SOP,16PIN,PLASTIC