DESCRIPTION
The SP503 is a highly integrated serial transceiver that allows software control of its interface modes. It offers hardware interface modes for RS-232 (V.28), RS-422A (V.11), RS-449, RS-485, V.35, and EIA-530. The SP503 is fabricated using low–power BiCMOS process technology, and incorporates a Exar patented (5,306,954) charge pump allowing +5V only operation.

■ Single Chip Programmable Serial Transceiver
■ Seven (7) Drivers and Seven (7) Receivers
■ Software-Selectable Industry Standard Protocols:
    — RS-232 (V.28)
    — EIA-530
    — RS-449
    — RS-422A (V.11, X.27)
    — RS-485
    — V.35
■ Independant Driver and Receiver Mode Selection
■ +5V Single Power Supply Operation
■ Surface Mount Packaging