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

SP48E,485E_00_2808

DESCRIPTION

• +5V Only

• Low Power BiCMOS

• Driver / Receiver Enable for Multi-Drop

configurations

• Low Power Shutdown mode (

SP481E)

• Enhanced ESD Specifications:

+/-5kV Human Body Model

+/-15kV IEC1000-4-2 Air Discharge

+/-8kV IEC1000-4-2 Contact Discharge

• Available in RoHS Compliant, Lead Free

Packaging.

SP481E / SP485E

Enhanced Low Power Half-Duplex

RS-485 Transceivers

The

SP481E and SP485E are a family of half-duplex transceivers that meet the specifica-

tions of RS-485 and RS-422 serial protocols with enhanced ESD performance. The ESD

tolerance has been improved on these devices to over +5kV for both Human Body Model

and IEC1000-4-2Air Discharge Method. These devices are pin-to-pin compatible with

Exar's

SP481 and SP485 devices as well as popular industry standards. As with the original ver-

sions, the

SP481E and SP485E feature Exar's BiCMOS design allowing low power opera-

tion without sacrificing performance. The

SP481E and SP485E meet the requirements of

the RS-485 and RS-422 protocols up to 10Mbps under load. The

SP481E is equipped with

a low power shutdown mode.