SP490 - Full-Duplex RS-485 Transceivers
SP490 Features
* 5V only
* Low power BiCMOS
* Driver/receiver enable (SP491)
* RS-485 and RS-422 drivers/receivers
* Pin compatible with LTC490 and SN75179 (SP490)
* Pin compatible with LTC491 and SN75180 (SP491) Ordering Information - Back Page Block Diagrams
