Datasheet > FSTU3257QSCX

FSTU3257QSCX

更新时间： 2024-11-12 23:52:59

品牌	Logo	应用领域
其他 - ETC		复用器逻辑集成电路光电二极管
页数	文件大小	规格书
6页	166K
描述
2-Input Digital Multiplexer

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中文翻译

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数据手册

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FSTU3257QSCX 数据手册

August 1999

Revised December 2000

FSTU3257

Quad 2:1 Multiplexer/Demultiplexer Bus Switch with

−2V Undershoot Protection

General Description

Features

■ Undershoot hardened to −2V (A and B Ports)

The Fairchild Switch FSTU3257 is a quad 2:1 high-speed

CMOS TTL-compatible multiplexer/demultiplexer bus

switch. The low on resistance of the switch allows inputs to

be connected to outputs without adding propagation delay

or generating additional ground bounce noise.

■ Soft enable turn-on to minimize bus to bus charge

sharing during enable

■ 4Ω switch connection between two ports.

■ Minimal propagation delay through the switch.

When OE is LOW, the select pin connects the A Port to the

selected B Port output. The A and B Ports are “undershoot

hardened” with Undershoot Hardened Circuit (UHC ) pro-

tection to support an extended range of 2.0V below

ground. Fairchild’s integrated UHC senses undershoot at

the I/O and responds by preventing voltage differentials

from developing and turning on the switch. When OE is

HIGH, the switch is OPEN and a high-impedance state

exists between the two ports.

■ Low l_CC

■ Zero bounce in flow-through mode.

■ Control inputs compatible with TTL level.

■ See Applications Note AN-5008 for details

Ordering Code:

Order Number

FSTU3257M

Package Number

M16A

Package Description

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

FSTU3257QSC

FSTU3257MTC

MQA16

MTC16

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

Logic Diagram

Connection Diagram

Truth Table

Pin Descriptions

Pin Name

Description

Function

Disconnect

A = B₁

Bus Switch Enable

Select Input

Bus A

A = B₂

B₁–B₂

Bus B

UHC is a trademark of Fairchild Semiconductor Corporation.

DS500302

www.fairchildsemi.com

12 3 4 5 6

中文翻译

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与FSTU3257QSCX相关器件

型号	品牌	获取价格	描述	数据表
FSTU3257QSCX_NL	FAIRCHILD	获取价格	暂无描述
FSTU32X384	FAIRCHILD	获取价格	20-Bit Low Power Bus Switch with -2V Undershoot Protection
FSTU32X384_06	FAIRCHILD	获取价格	20-Bit Low Power Bus Switch with −2V Undershoot Protection
FSTU32X384QSP	FAIRCHILD	获取价格	20-Bit Low Power Bus Switch with -2V Undershoot Protection
FSTU32X384QSPX	FAIRCHILD	获取价格	Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 10-Bit, True Output, CMOS, PDSO48, 0.150 INCH,
FSTU32X800	FAIRCHILD	获取价格	20-Bit Bus Switch with Precharged Outputs and -2V Undershoot Protection
FSTU32X800QSP	FAIRCHILD	获取价格	20-Bit Bus Switch with Precharged Outputs and -2V Undershoot Protection
FSTU32X800QSP_NL	FAIRCHILD	获取价格	暂无描述
FSTU32X800QSPX	FAIRCHILD	获取价格	Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 10-Bit, True Output, CMOS, PDSO48, 0.150 INCH,
FSTU3384	FAIRCHILD	获取价格	10-Bit Bus Switch with -2V Undershoot Hardene

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