Document
SP483 / SP485
Low Power Half-Duplex RS-485 Transceivers
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
DESCRIPTION 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. Additionally, 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.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP483_SP485_101_062711
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sectio.