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www.DataSheet4U.com
JULY 2007
PRELIMINARY
XRT83VSH316
REV. P1.0.3
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
GENERAL DESCRIPTION
The XRT83VSH316 is a fully integrated 16-channel short-haul line interface unit (LIU) that operates from a 1.8V Inner Core and 3.3V I/O power supplies. Using internal termination, the LIU provides one bill of materials to operate in T1, E1, or J1 mode independently on a per channel basis with minimum external components. The LIU features are programmed through a standard parallel microprocessor interface or SPI (Serial Mode). EXAR’s LIU has patented high impedance circuits that allow the transmitter outputs and receiver inputs to be high impedance when experiencing a power failure or when the LIU is powered off.