Product Core Brief
- Model: MOTOROLA MVME2604-712
- Brand: Motorola
- Series: MVME2600
- Core Function: VMEbus single-board computer for industrial and telecom control.
- Product Type: VME SBC
- Key Specs: MC68040 / MC68LC040 | Up to 8MB Parity DRAM | VMEbus Interface
- Condition: New Surplus
Product Introduction
MOTOROLA MVME2604-712 operates as a dual-high VMEbus module. This industrial automation unit handles legacy control and telecom tasks reliably.
It leverages a Motorola MC68040 or MC68LC040 microprocessor. The board supports up to 8MB of parity-protected DRAM and includes dual serial ports for legacy connectivity.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Processor | MC68LC040 or MC68040 |
| Memory | 1MB, 4MB, or 8MB Parity DRAM |
| VME Protocol | Standard VMEbus Interface |
| Serial Ports | 2x RS-232 |
| Parallel Port | 1x Parallel Interface |
| Timers | 2x Programmable Timers |
| Watchdog | 1x Watchdog Timer |
| Memory Management | Integrated MMU |
| Floating Point | FPU (MC68040 Only) |
| Release Year | 1998 |
Quality Control Process
We validate every MOTOROLA MVME2604-712 through comprehensive functional testing. First, we perform a cold boot sequence to verify firmware and VxWorks BSP integrity. Next, we run multi-pass memory diagnostics on the parity DRAM to catch bit errors. We validate both serial ports and the parallel port using loopback signal injection testing. Finally, we verify VMEbus arbitration timing using a protocol analyzer. Each replacement module ships in anti-static packaging.
Replacement Pitfall Guide
❗ Processor Variant: This module ships with either an MC68040 or MC68LC040. The LC variant lacks a floating-point unit. Verify your application does not require hardware FPU.
❗ Parity DRAM Configuration: The board uses parity-protected memory. Mixing non-parity DIMMs or incorrect bank population causes boot failures.
❗ VMEbus Jumper Settings: Address and arbitration jumpers must match your legacy backplane configuration. Mismatches cause silent bus hangs.
❗ Legacy Serial Cables: Dual serial ports use non-standard pinouts. Verify cable wiring before connecting to modern equipment.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| MOTOROLA | (Same) | Direct Replacement | Verify CPU variant |
| MOTOROLA | MVME162 Series | Needs Adaptation | Different VME config |
| MOTOROLA | MVME5100 Series | Needs Adaptation | PowerPC migration |
- VME Bus Throughput: Standard VMEbus bandwidth (up to 40MB/s).
- Processor Performance: MC68040 with integrated MMU and optional FPU.
