Datasheet > 74FST3257_11

74FST3257_11

更新时间： 2024-09-16 00:34:47

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
8页	145K
描述
Quad 2:1 Multiplexer/ Demultiplexer Bus Switch

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中文翻译

获取价格

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74FST3257_11 数据手册

74FST3257

Quad 2:1 Multiplexer/

Demultiplexer Bus Switch

The ON Semiconductor 74FST3257 is a quad 2:1, high performance

multiplexer/demultiplexer bus switch. The device is CMOS TTL

compatible when operating between 4 and 5.5 Volts. The device

http://onsemi.com

MARKING

exhibits extremely low R and adds nearly zero propagation delay.

The device adds no noise or ground bounce to the system.

DIAGRAMS

Features

• R t 4 W Typical

• Less Than 0.25 ns−Max Delay Through Switch

• Nearly Zero Standby Current

FST3257G

AWLYWW

SOIC−16

D SUFFIX

• No Circuit Bounce

CASE 751B

• Control Inputs are TTL/CMOS Compatible

• Pin−For−Pin Compatible With QS3257, FST3257, CBT3257

• All Popular Packages: SOIC−16, TSSOP−16, QFN16

• These Devices are Pb−Free and are RoHS Compliant

FST

3257

ALYW G

TSSOP−16

DT SUFFIX

CASE 948F

GND

3257

ALYWG

13 4B

QFN16

MN SUFFIX

CASE 485AW

11 3B

GND

= Assembly Location

= Year

WL, L = Wafer Lot

GND 3A

WW, W = Work Week

Figure 1. 16−Lead Pinout Diagrams

G or G = Pb−Free Package

(Note: Microdot may be in either location)

PIN NAMES

Function

OE , OE

Description

Bus Switch Enables

Select Inputs

Bus A

Disconnect

A = B

S , S

A = B

Figure 2. Truth Table

B , B , B , B

Bus B

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

Publication Order Number:

June, 2011 − Rev. 7

74FST3257/D

12 3 4 5 6 7 8

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