MT8985
256 x 256 Channels (8 TDM Streams at 2.048 Mbps) Non-blocking Enhance Digital Switch (EDX) with Constant Delay Mode
Overview
| The MT8985 Enhanced Digital Switch device is an upgraded version of the popular MT8980D Digital Switch (DX). It is pin compatible with the MT8980D and retains all of the MT8980D's functionality. This VLSI device is designed for switching PCM-encoded voice |
Simplified Block Diagram
Typical Applications
- Medium size digital switch matrices
- Hyperchannel switching (e.g., ISDN H0)
- ST-BUS/MVIP?; interface functions
- Serial bus control and monitoring
- Centralized voice processing systems
- Data multiplexer
Features & Benefits
- 256 x 256 channel non-blocking switch
- Programmable frame integrity for wideband channels
- Automatic identification of ST-BUS/GCI interface backplanes
- Per channel tristate control
- Patented message mode
- Non-multiplexed microprocessor interface
- Single power supply (+5 V)
- Available in DIP-40, PLCC-44 and QFP-44 packages
Resources
Documentation
Application Notes
- MSAN-145 - How to Interface Zarlink Componentsto Parallel Bus CPUs.pdf
- MSAN-126 - ST-BUS Generic Device Specification.pdf
Product Previews
Product Packaging & Availability
| Part Number | Package Type | Pin Count | Lead-Free Option | Shipping Option(s) | Status |
|---|---|---|---|---|---|
| MT8985AE1 | PDIP | 40 | Pb-free-Matte Tin | Tubes (Anti-static Sticks) | EOL |
| MT8985AL1 | MQFP | 44 | Pb-free-Matte Tin | Trays. Bake & Drypack | EOL |
| MT8985AP1 | PLCC | 44 | Pb-free-Matte Tin | Tubes. Bake & Drypack | Production |
| MT8985APR1 | PLCC | 44 | Pb-free-Matte Tin | Tape & Reel Mounted | Production |
Packaging Information
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