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DESCRIPTION

The SP508E is a monolithic device that supports eight (8) popular serial interface standards for Wide Area Network (WAN) connectivity. The SP508E is fabricated using a low power BiCMOS process technology, and incorporates an Exar regulated charge pump allowing +5V only operation. Exars patented charge pump provides a regulated output of +5.8V, which will provide enough voltage for compliant operation in all modes.

FEATURES

? 20Mbps Differential Transmission Rates

? 15kV ESD Tolerance for Analog I/Os

? Internal Transceiver Termination Resistors for V.11/V.35

? Interface Modes:

– RS-232 (V.28) – EIA-530 (V.10 & V.11)

– X.21 (V.11) – EIA-530A (V.10 & V.11)

– RS-449/V.36 – V.35

(V.10 & V.11)

? Software Selectable Protocols with 3-Bit Word

? Eight Drivers and Eight Receivers

? V.35/V.11 Receiver Termination Network Disable Option

? Internal Line or Digital Loopback Testing

? Adheres to NET1/NET2 and TBR-2 Requirements Refer to page 7 for pinout

? Easy Flow-Through Pinout

? +5V Only Operation

? Individual Driver/Receiver Enable/Disable Controls

? Operates in DTE or DCE Mode

APPLICATIONS

? Router

? Frame Relay

? CSU

? DSU

? PBX

? Secure Communication Terminals