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MT8980D-1

ISO-CMOS ST-BUS??FAMILY Digital Switch

Description ThisVLSIISO-CMOSdeviceisdesignedforswitchingPCM-encodedvoiceordata,undermicroprocessorcontrol,inamoderndigitalexchange,PBXorCentralOffice.Itprovidessimultaneousconnectionsforupto25664kbit/schannels.Eachoftheeightserialinputsandoutputsconsis

MT8980D-1

ISO-CMOS ST-BUS?FAMILY Digital Switch; ? Mitel ST-BUS compatible\n? 8-line x 32-channel inputs\n? 8-line x 32-channel outputs\n? 256 ports non-blocking switch\n? Single power supply (+5 V)\n? Low power consumption: 30 mW Typ.\n? Microprocessor-control interface\n? Three-state serial outputs;

Description\nThis VLSI ISO-CMOS device is designed for switching PCM-encoded voice or data, under microprocessor control, in a modern digital exchange, PBX or Central Office. It provides simultaneous connections for up to 256 64 kbit/s channels. Each of the eight serial inputs and outputs consist of 32 64 kbit/s channels multiplexed to form a 2048 kbit/s ST-BUS stream. In addition, the MT8980 provides microprocessor read and write access to individual ST-BUS channels.