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SP483ECP-L

Enhanced Low EMI Half-Duplex RS-485 Transceiver

Exar Corporation 

SP483E

Enhanced Low EMI Half-Duplex

RS-485 Transceiver

• +5V Only

• Low Power BiCMOS

• Driver / Receiver Enable for Multi-Drop

Configurations

• Enhanced ESD Specifications:

+/-15kV Human Body Model

+/-15kV IEC61000-4-2 Air Discharge

+/-8kV IEC61000-4-2 Contact Discharge

• Low EMI Transceiver limited to 250kbps

• Low Power 1µA Shutdown Mode

DESCRIPTION

The SP483E is a half-duplex transceiver that meets the specifications of RS-485 and RS-422

serial protocols with enhanced ESD performance. The ESD tolerance has been improved on

these devices to over +15kV for both Human Body Model and IEC61000-4-2 Air Discharge

Method. This devices is pin-to-pin compatible with Exar's SP483 device as well as popular

industry standards. As with the original versions, the SP483E feature Exar's BiCMOS de-

sign allowing low power operation without sacrificing performance. The SP483E is internally

slew rate limited to reduce EMI and can meet the requirements of RS-485 and RS-422 up to

250kbps. The SP483E is also equipped with a low power shutdown mode.

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com



SP483E_100_020912

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