DESCRIPTION
The SP516 is a monolithic device that supports eight (8) popular serial interface standards for DTE to DCE connectivity. The seven (7) drivers and seven (7) receivers can transmit and receive signals over 20Mbps. The SP516 requires no additional external components for compliant operation for all of the eight (8) modes of operation. All necessary termination is integrated within the SP516 and is switchable when V.35 drivers, V.35 receivers, and V.11 receivers are used. The SP516 can operate as either a DTE or DCE.

■ 20Mbps Differential Transmission Rates
■ Internal Termination Network Disable Control
■ Interface Modes Supported:
   ✓ RS-232 (V.28)              ✓ X.21/RS-422 (V.11)
   ✓ EIA-530 (V.10 & V.11) ✓ EIA-530A (V.10 & V.11)
   ✓ RS-449 (V.10 & V.11)  ✓ V.35 (V.35 & V.28)
   ✓ V.36 (V.10 & V.11)       ✓ RS-485 (un-terminated V.11)
■ Software Protocol Selection
■ Loopback Self-Test Mode
■ Internal Transceiver Termination Resistors for V.11 and V.35 Protocols
■ Driver and Receiver high-Z Control
■ Improved ESD Tolerance for Analog I/Os
■ Compliant to NET1/2 and TBR2 Physical Layer Requirements from SP505
■ Applications include Routers, Switches, DSU/CSUs, and Access Devices