The SP505is a monolithic device that supports eight (8) popular serial interface standards for DTE toDCE connectivity. The SP505is fabricated using a low power BiCMOS process technology, andincorporates a Sipex patented (5,306,954) charge pump allowing +5V only operation. Seven (7) driversand seven (7) receivers can be configured via software for any of the above interface modes at any time.The SP505requires no additional external components for compliant operation for all of the eight (8)modes of operation. All necessary termination is integrated within the SP505and is switchable whenV.35 drivers, V.35 receivers, and V.11 receivers are used. The SP505can operate as either a DTE or DCE.Additional features with the SP505include internal loopback that can be initiated in either single-endedor differential modes. While in loopback mode, driver outputs are internally connected to receiver inputscreating an internal signal path convenient for diagnostic testing. This eliminates the need for an externalloopback plug. The SP505also includes a latch enable pin with the driver and receiver address decoder.Tri-state ability for the driver and receiver outputs is controlled by supplying a 4-bit word into the addressdecoder. Seven (7) drivers and one (1) receiver in the SP505include separate enable pins for addedconvenience. The SP505is ideal for WAN serial ports in networking equipment such as routers,switches, DSU/CSU's, and other access devices.