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Part Number: MT8920B
Description: The ST-BUS Parallel Access Circuit (STPA) provides a simple interface between Mitel's ST-BUS and parallel system ...
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MT8920B
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General Description
MT8920B General Description
The ST-BUS Parallel Access Circuit (STPA) provides a simple interface between Mitel's ST-BUS and parallel system environments.
MT8920B Maximum Ratings
| Parameter |
Symbol |
Min |
Max |
Units | |
| 1 | Power supply voltage VDD-VSS |
VDD |
-0.3 |
7.0 |
V |
| 2 | Voltage on any pin |
-0.3 |
VDD+0.3 |
V | |
| 3 | Current at any pin (Except VDD and VSS) |
II/O |
±25 |
mA | |
| 4 | Storage Temperature |
TST |
-55 |
125 |
°C |
| 5 | Package power dissipation |
PD |
600 |
mW |
MT8920B Features
• 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
• Low power CMOS technology
• 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
• Low power CMOS technology
MT8920B Typical Application
• 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
• Digital signal processor interface to ST-BUS
• Computer to Digital PABX link
• Voice store and forward systems
• Interprocessor communications
MT8920B Connection Diagram
MT8920B
PDF/DataSheet Download
- Datasheet: MT8920B
- File Size: 547443 KB
- Manufacturer: MITEL [Mitel Networks Corporation]
- Click here to Download
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