Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com

SP48E-485E_00_06609

■ +5VOnly

■ LowPowerBiCMOS

■ Driver/ReceiverEnableforMulti-Drop

configurations

■ LowPowerShutdownMode

(SP48E)

■ EnhancedESDSpecifications:

description

The SP1481E and the SP1485E are a family of half-duplex transceivers that meet the

specificationsofRS-485andRS-422serialprotocolswithenhancedESDperformance.The

ESDtolerancehasbeenimprovedonthesedevicestoover+15KVforbothHumanBody

ModelandIEC1000-4-2AirDischargeMethod.Thesedevicesarepin-to-pincompatible

withExar'sSP481andSP485devicesaswellaspopularindustrystandards.Aswiththe

originalversions,theSP1481EandtheSP1485EfeatureExar'sBiCMOSdesignallowing

lowpoweroperationwithoutsacrificingperformance.TheSP1481EandSP1485Emeetthe

requirementsoftheRS-485andRS-422protocolsupto20Mbpsunderload.TheSP1481E

isequippedwithalowpowerShutdownmode.

+15KVHumanBodyModel

+15KVIEC1000-4-2AirDischarge

+8KVIEC1000-4-2ContactDischarge

R

8

7

6

5

D

1

2

3

4

RO

RE

DE

DI

V

CC

B

A

GND

NowAvailableinLeadFreePackaging

SP1481E/SP1485E

Enhanced Low Power Half-Duplex

RS-485 Transceivers