Product Summary

The MT8980DPR1 is a VLSI ISO-CMOS device. It is designed for switching PCM-encoded voice or data, under microprocessor control, in a modern digital exchange, PBX or Central Office. The MT8980DPR1 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 MT8980DPR1 provides microprocessor read and write access to individual ST-BUS channels.

Parametrics

MT8980DPR1 absolute maximum ratings: (1)VDD - VSS: -0.3 to 7 V; (2)Voltage on Digital Inputs, VI: VSS-0.3 to VDD+0.3 V; (3)Voltage on Digital Outputs, VO: VSS-0.3 to VDD+0.3 V; (4)Current at Digital Outputs, IO: 40 mA; (5)Storage Temperature, TS: -65 to +150℃; (6)Package Power Dissipation, PD: 2W.

Features

MT8980DPR1 features: (1)Zarlink ST-BUS compatible; (2)8-line x 32-channel inputs; (3)8-line x 32-channel outputs; (4)256 ports non-blocking switch; (5)Single power supply (+5 V); (6)Low power consumption: 30 mW Typ; (7)Microprocessor-control interface; (8)Three-state serial outputs.

Diagrams

MT8980DPR1 functional block diagram

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MT8910-1

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