DESCRIPTION

The SP505 is a monolithic device that supports eight (8) popular serial interface standards for DTE to DCE connectivity. The SP505 is fabricated using a low power BiCMOS process technology, and incorporates a Sipex patented (5,306,954) charge pump allowing +5V only operation. Seven (7) drivers and seven (7) receivers can be configured via software for any of the above interface modes at any time. The SP505 requires no additional external components for compliant operation for all of the eight (8) modes of operation. All necessary termination is integrated within the SP505 and is switchable when V.35 drivers, V.35 receivers, and V. receivers are used. The SP505 can operate as either a DTE or DCE.

• +5V Only Operation

• Seven (7) Drivers and Seven (7) Receivers

• Driver and Receiver Tri-state Control

• Internal Transceiver Termination Resistors for V.11 and V.35 Protocols

• Loopback Self-Test Mode

• Software Selectable Protocol Selection

• 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)

• Improved ESD Tolerance for Analog I/Os

• High Differential Transmission Rates

• SP505A - 10Mbps

• SP505B - over 16Mbps

• Compliant to NET1/2 and TBR2 Physical Layer Requirements