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

SP483_SP485_00_0740

DESCRIPTION

FEATURES

• +5V Only

• Low Power BiCMOS

• Driver / Receiver Enable

• Slew Rate Limited Driver for Low EMI (SP483)

• Low Power Shutdown mode (SP483)

• RS-485 and RS-422 Drivers/Receivers

SP483 / SP485

Low Power Half-Duplex RS-485 Transceivers

The

SP483 and SP485 are a family of half-duplex transceivers that meet the specifications

of RS-485 and RS-422. Their BiCMOS design allows low power operation without sacrificing

performance. The

SP485 meets the requirements of RS-485 and RS-422 up to 5Mbps. Ad-

ditionally, the

SP483 is equipped with a low power Shutdown mode. The SP483 is internally

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

to 250kbps.