MT89L80
256 x 256 Channels (8 TDM Streams at 2.048 Mbps) 3.3 V Non-blocking Digital Switch (DX)
Overview
| This VLSI 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 kbps channels. Each of the eight serial inputs and outputs consist of 32 64 kbps channels multiplexed to form a 2048 kbps ST-BUS stream. In addition, the MT89L80 provides microprocessor read and write access to individual ST-BUS channels. |
Simplified Block Diagram
Typical Applications
- Key telephone systems
- PBX systems
- Small and medium voice switching systems
Features & Benefits
- 3.3 V supply
- 5 V tolerant inputs and TTL compatible outputs
- 256 x 256 channel non-blocking switch
- Accepts serial streams at 2.048 Mbps
- Per-channel three-state control
- Patented per channel message mode
- Non-multiplexed microprocessor interface
- Zarlink ST-BUS compatible
- Low power consumption: typical 15 mW
- Pin compatible with the MT8980DP
Resources
Documentation
Product Previews
Product Packaging & Availability
| Part Number | Package Type | Pin Count | Lead-Free Option | Shipping Option(s) | Status |
|---|---|---|---|---|---|
| MT89L80AN1 | SSOP | 48 | Pb-free-Matte Tin | Tubes. Bake & Drypack | Discontinued package. |
| MT89L80ANR1 | SSOP | 48 | Pb-free-Matte Tin | Tape & Reel Mounted | Discontinued package. |
| MT89L80AP1 | PLCC | 44 | Pb-free-Matte Tin | Tubes (Anti-static Sticks) | Production |
| MT89L80APR1 | PLCC | 44 | Pb-free-Matte Tin | Tape & Reel Mounted | Production |
Packaging Information
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