MT8986AC

The MT8986AC is a kind of Multiple Rate Digital Switch (MRDX) which is an upgraded version of MITEL's MT8980D Digital Switch (DX). The MT8986AC is pin compatible with the MT8980D and retains all of its functionality. The device is designed to provide simultaneous connections (nonblocking) for up to 256 64kb/s channels or blocking connections for up to 512 64kb/s channels. The typical applications of MT8986AC include: medium size digital switch matrices, hyperchannel switching (e.g., ISDN H0), MVIP™ interface functions, serial bus control and monitoring, centralized voice processing systems,voice/data multiplexer and 32 kbit/s channel switching. The device is available in 40 pin ceramic DIP.

There are some features of MT8986AC as follows: (1)256 x 256 or 512 x 256 switching configurations; (2)8-bit or 4-bit channel switching capability; (3)guarantees frame integrity for wideband channels; (4)automatic identification of ST-BUS/GCI interfaces; (5)accepts serial streams with data rates up to 8.192 Mb/s; (6)rate conversion from 2.048 Mb/s to 4.096 or 8.192 Mb/s and vice-versa; (7)programmable frame offset on inputs; (8)per-channel three-state control; (9)per-channel message mode; (10)control interface compatible to Intel/Motorola CPUs; (11)low power consumption.

What comes next is about the absolute maximum ratings of MT8986AC: (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 VDD+0.3 V; (4)current at digital outputs, IO: 40 mA; (5)storage temperature, TS: -65 to +150; (6)package power dissipation, PD: 2 W. Then is about the recommended operating conditions (voltages are with respect to ground (VSS) unless otherwise stated): (1)operating temperature, TOP: -40 min, 25 typ and +85 max; (2)positive supply, VDD 4.75 V min, 5.0 V tyo and 5.25 V max; (3)input voltage, VI: 0 V min and VDD V max.