Product Core Brief
- Model: MVME5110-2261
- Brand: Motorola
- Series: MVME5100 Single Board Computers
- Core Function: Reliable VMEbus processing for industrial control
- Product Type: VMEbus Single Board Computer (SBC)
- Key Specs: 366MHz MPC750 | 1MB L2 Cache | VME64
- Condition: New Original / New Surplus
Product Introduction
The Motorola MVME5110-2261 is a proven VMEbus SBC for legacy automation. It uses a 366MHz PowerPC 750 processor with 1MB external L2 cache.
This replacement module supports VME64 addressing and 64-bit data transfers. It runs VxWorks or Linux for stable, long-term operation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Processor | Motorola PowerPC 750 (MPC750) |
| Clock Speed | 366MHz |
| L1 Cache | 32KB Instruction + 32KB Data |
| L2 Cache | 1MB External |
| System Memory | 64MB – 512MB SDRAM |
| Bus Interface | VME64 (A24/A32, D32/D64) |
| Network | 10/100Mbps Ethernet |
| Serial I/O | RS-232 / RS-422 |
| Storage Interface | SCSI Controller |
| Supported OS | VxWorks, LynxOS, pSOS, Linux |
Quality Control Process
We test every surplus stock unit thoroughly. First, we verify the 366MHz MPC750 boots and passes POST. Next, we run memory diagnostics on the SDRAM to check for bit errors. We validate the 1MB L2 cache integrity and test the 10/100 Ethernet PHY. Serial ports get loopback verification. Finally, we pack the SBC in anti-static shielding.
Replacement Pitfall Guide
❗ Verify VME64 Backplane Support. This SBC uses VME64 signaling. Older VME32 backplanes may work but limit performance. Check your chassis specs first.
❗ Check SCSI Termination. The onboard SCSI controller requires proper termination. Missing or incorrect terminators cause data corruption on external storage.
❗ Serial Port Pinouts. RS-232 and RS-422 modes share connectors. Wrong jumper settings will fry transceivers. Consult the manual before connecting.
❗ Power Draw on 5V Rail. The MPC750 and L2 cache draw significant 5V current. Ensure your VME power supply has adequate headroom. Undervoltage causes random crashes.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level (Direct/Needs Adaptation) | Migration Notes |
|---|---|---|---|
| MVME5110-2263 | Direct | Verify memory size and serial config | |
| MVME5110 Series | Direct | ‘-2261’ indicates 366MHz / 1MB L2 | |
| MVME5500 Series | Needs Adaptation | Requires BSP changes and chassis mods |
- Bus Throughput: VME64 D64 transfers for high-bandwidth I/O
- Processing Power: 366MHz MPC750 with 1MB L2 for real-time control
