Preliminary

© 2001 Fairchild Semiconductor Corporation

DS500018

www.fairchildsemi.com

October 2001

Revised October 2001

FSLV34X245

32-Bit Bus Switch (Preliminary)

General Description

The Fairchild Switch FSLV34X245 provides 32-bits of high-

speed CMOS bus switching in a standard 245 pin-out. The

low On Resistance of the switch allows inputs to be con-

nected to outputs without adding propagation delay or gen-

erating additional ground bounce noise.

The device is organized as an 32-bit switch. When OE is

LOW, the switch is ON and Port A is connected to Port B.

When OE is HIGH, the switch is OPEN and a High-Imped-

ance state exists between the two ports.

Features

s 5

Ω switch connection between two ports

s Minimal propagation delay through the switch

s Zero bounce in flow-through mode

s Low Power-Off leakage currents

s 32-bit version of FSLV3245

s Packaged in “slim line” 80-lead package

Ordering Code:

Connection Diagram

Logic Diagram

Pin Descriptions

Truth Table

Order Number

Package Number

Package Description

FSLV34X245QSP

MQA80A

80-Lead, QVSOP, JEDEC MO-154, 0.150" Wide

Pin Name

Description

OE

Bus Switch Enable

ABus A

BBus B

NC

No Connect

Input OE

Function

L

Connect

H

Disconnect