Product Core Brief
- Model: MVME162-262
- Brand: Motorola
- Series: MVME162 Single Board Computers
- Core Function: Rugged VMEbus processing for legacy industrial control
- Product Type: VMEbus Single Board Computer (SBC)
- Key Specs: 25MHz MC68040 | 4MB DRAM | 6U Dual-Height
- Condition: New Original / New Surplus
Product Introduction
The Motorola MVME162-262 is a rugged 6U VMEbus SBC built on the MC68040 microprocessor. It operates at a 25MHz speed grade and supports up to 4MB of parity-protected DRAM for reliable operation.
This replacement module includes IndustryPack expansion ports and dual serial interfaces. It handles CNC retrofits and broadcast transmission tasks with deterministic reliability.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Processor | Motorola MC68040 |
| Clock Speed | 25MHz |
| System Memory | 4MB Parity-Protected DRAM |
| Backup Memory | 512KB SRAM with Battery |
| Flash Memory | 1MB Onboard |
| Form Factor | 6U Dual-Height VME |
| Expansion Ports | 4x IndustryPack® |
| Serial Ports | 2x RS-232/422 |
| Storage Bus | Optional SCSI-2 |
| Target Application | Industrial Automation, Broadcast |
Quality Control Process
We inspect every surplus stock unit thoroughly. First, we verify the 25MHz MC68040 boots and passes POST diagnostics. Next, we run memory stress tests on the 4MB DRAM to catch bit errors. We validate the 512KB battery-backed SRAM retention and check the dual serial ports with loopback verification. IndustryPack slots get functional testing with known-good I/O modules. Finally, we pack the SBC in anti-static shielding.
Replacement Pitfall Guide
❗ Check SRAM Battery Voltage. The 512KB backup SRAM relies on an onboard battery for retention. Old stock often has dead batteries. Test voltage before installing to avoid config loss.
❗ Verify IndustryPack Module Compatibility. The four IP ports support specific I/O modules. Mismatched modules cause bus errors. Consult the manual before installing daughter cards.
❗ VMEbus Address Conflicts. The MC68040 supports multiple address spaces. Overlapping memory maps with other VME modules cause system crashes. Verify jumper settings against your backplane layout.
❗ Thermal Management. This 6U dual-height board generates significant heat. Ensure your chassis provides adequate airflow. Overheating causes intermittent failures.
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 |
|---|---|---|---|
| -263 | Direct | Verify memory size and IP config | |
| MVME162 Series | Direct | ‘-262’ indicates 25MHz MC68040 | |
| MVME167 Series | Needs Adaptation | Different CPU architecture and BSP |
- Serial Throughput: Dual RS-232/422 ports for multi-drop networks
- Memory Reliability: 4MB parity-protected DRAM for fault-tolerant control
