DESCRIPTION
The SP522/524 is a monolithic device that supports three serial interface standards for Wide Area Network Connectivity. The SP522/524 is ideally suited for multi-protocol designs that are cost and space sensitive. The SP522/524 is fabricated using a low power BiCMOS process technology. Two (2) drivers and two (2) receivers for the SP522 can be configured via software for any of the above interface modes at any time. The SP524 offers two (2) additional drivers and two (2) additional receivers.

■ SP522 — 2 Drivers and 2 Receivers
■ SP524 — 4 Drivers and 4 Receivers
■ Driver and Receiver Tri-State Control
■ Low-Cost WAN Solution
■ Loopback Function for Diagnostics
■ Software Selectable Interface Modes:
    -RS-232 (V.28), RS-423 (V.10)
    -RS-422 (V.11, X.21), RS-485