TLF11652

December 1996

74LVX3L383

10-Bit Low Power Bus-Exchange Switch

General Description

The LVX3L383 provides two sets of high-speed CMOS TTL-

compatible bus switches The low on resistance of the

switch allows inputs to be connected to outputs without

adding propagation delay or generating additional ground

bounce noise The device operates as a 10-bit bus switch or

a 5-bit bus exchanger The bus exchange (BX) signal pro-

vides nibble swapping of the AB and CD pairs of signals

This exchange configuration allows byte swapping of buses

in systems It can also be used as a quad 2-to-1 multiplexer

and to create low delay barrel shifters The bus enable (BE)

signal turns the switches on

Features

Y

5X switch connection between two ports

Y

Zero propagation delay

Y

Y

Zero ground bounce in flow-through mode

Y

Control inputs compatible with TTL level

Y

Available in SOIC TSSOP and QSOP (SSOP 015

body width) packages

Logic Diagram

TLF11652 – 1

Truth Table

BE

BX

Function

H

X

High-Z State

High-Z State

Disconnect

LL

Connect

LH

Exchange

Connection Diagram

Pin Assignment for

SOIC QSOP and TSSOP

TLF11652 – 2

Pin Names

Description

BE

Bus Switch Enable

BX

Bus Exchange

Buses A B

Buses C D

SOIC JEDEC

QSOP

TSSOP

Order Number

74LVX3L383WM

74LVX3L383QSC

74LVX3L383MTC

74LVX3L383WMX

74LVX3L383QSCX

74LVX3L383MTCX

See NS

M24B

MQA24

MTC24

Package Number

TRI-STATE

is a registered trademark of National Semiconductor Corporation

C1996 National Semiconductor Corporation

RRD-B30M17Printed in U S A

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