MT8982

® ISO-CMOS ST-BUS™ FAMILY MT8982 Small Digital Switch (MiniDX) Features ST-BUS/GCI compatible switch matrix 64 channel non-blocking time switch 2 x 32 channel serial inputs and outputs Per-channel tristate control 4-pin serial microprocessor interface www.DataSheet4U.com Patented message mode Low power consumption (10 mW) Single 5 volt supply ISSUE 6 May 1995 Ordering Information MT8982AC 16 Pin Ceramic DIP MT8982AE 16 Pin Plastic DIP MT8982AS 16 Pin SOIC MT8982AN 20 Pin SSOP -40 to +85°C Description The MT8982 Small Digital Switch (MiniDX) is a nonblocking CMOS time switch with a capacity of up to 64 - 8 bit Time Division Multiplexed (TDM) encoded voice or data channels. It is a size-optimized version of MITEL's successful MT8980D Digital Switches, providing switching capability in cost sensitive applications such as telephone sets and digital key systems. The TDM interface to the device is via two pairs of 2048 kbit/s serial streams with 32 64 kbit/s channels per stream (ST-BUS). A serial microport provides access to the device for programming the required connections. The serial microport is compatible with most common microcontrollers. The unique message mode capability allows the MT8982 to act as a controller for other members of MITEL's ST-BUS family of components. Applications Cost sensitive digital switching applications Digital key telephone systems GCI/ST-BUS conversion ST-BUS device control interface ISDN telephone set support cir...