MT8920
32 Channels TDM (ST-BUS) to Parallel Bus Access Circuit
Overview
The ST-BUS Parallel Access Circuit (STPA) provides a simple interface between ST-BUS and parallel system environments. |
Typical Applications
- Parallel control/data access to T1/CEPT digital trunk interfaces
- Digital signal processor interface to ST-BUS
- Computer to Digital PABX link
- Voice store and forward systems
- Interprocessor communications
Features & Benefits
- High speed parallel access to the serial ST-BUS
- Parallel bus optimized for 68000 mP (mode 1)
- Fast dual-port RAM access (mode 2) Access time: 120 nsec
- Parallel bus controller (mode 3) - no external controller required
- Flexible interrupt capabilities ¿ two independent/programmable interrupt sources with auto-vectoring
- Selectable 24 and 32 channel operation
- Programmable loop-around modes
Resources
Documentation
Application Notes
Product Packaging & Availability
Part Number | Package Type | Pin Count | Lead-Free Option | Shipping Option(s) | Status |
---|---|---|---|---|---|
MT8920BE1 | PDIP | 28 | Pb-free-Matte Tin | Tubes (Anti-static Sticks) | Production |
MT8920BP1 | PLCC | 28 | Pb-free-Matte Tin | Tubes. Bake & Drypack | Production |
MT8920BPR1 | PLCC | 28 | Pb-free-Matte Tin | Tape & Reel Mounted | Production |
MT8920BS1 | SOIC(W) | 28 | Pb-free-Matte Tin | Tubes. Bake & Drypack | Production |
Packaging Information
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