The Motorola MVME147S-1 is a VMEbus single-board computer (SBC) designed for embedded computing and industrial control applications. It is based on the Motorola MC68030 processor and integrates memory, serial interfaces, SCSI, Ethernet, timers, VMEbus control, and other computer resources on one VME module.
The MVME147S family was designed as a complete microcomputer system rather than simply a CPU card. The board includes an MC68882 floating-point coprocessor, VMEchip interface, battery-backed SRAM and time-of-day clock, four RS-232C serial ports, SCSI with DMA, Ethernet, Centronics printer interface, and an A32/D32 VMEbus interface.
It is a good fit for legacy VME industrial computers, factory automation, test equipment, data acquisition systems, scientific instrumentation, and embedded control platforms where maintaining the original hardware architecture is more practical than a complete system retrofit.
Product Datasheet
| Item | Specification |
|---|---|
| Model | MVME147S-1 |
| Brand | Motorola |
| Product Type | VME Single Board Computer |
| CPU | Motorola MC68030 |
| Floating-Point Processor | MC68882 |
| CPU Architecture | 32-bit |
| Memory | 4 MB DRAM or greater, configuration dependent |
| Local SRAM | 2040 bytes, battery backed |
| Serial Interfaces | 4 × RS-232C |
| Parallel Interface | Centronics printer interface |
| Storage Interface | SCSI with DMA |
| Network Interface | Ethernet transceiver interface |
| VME Interface | A32/D32 VMEbus |
| VME Function | VMEbus system controller |
| Timers | 2 × tick timers + watchdog timer |
| ROM | 4 ROM sockets |
| Form Factor | VMEbus VMEmodule |
| Application | Industrial / Embedded Computing |
| Dimensions | VME 6U-class board; exact mechanical dimensions configuration dependent |
| Weight | Approx. 0.7–1.0 kg* |
| Country of Origin | USA* |
*Weight and detailed mechanical specifications can vary with memory, ROM, transition-module, and hardware configuration. The MVME147S manual confirms the MC68030, MC68882, DRAM, serial ports, SCSI, Ethernet, VMEbus, timers, ROM sockets, and battery-backed resources.
Typical Applications
- 🏭 Industrial automation computers
- ⚙️ Machine and motion control
- 📊 Data acquisition systems
- 🔬 Scientific instrumentation
- 🧪 Test and measurement equipment
- 🚆 Transportation control systems
- 🖥️ Legacy VME computer systems
- 🔄 Industrial system modernization and spare-parts replacement
Installation & Use
- Verify the exact model — Confirm MVME147S-1 and compare memory, ROM, and board revision with the existing unit.
- Check the VME chassis — Install the board only in a compatible VMEbus backplane and verify the system controller arrangement.
- Inspect the board — Pay particular attention to the battery-backed SRAM/clock area, connectors, socketed devices, and signs of corrosion.
- Connect peripherals — Verify RS-232, Ethernet, SCSI, and VMEbus connections against the original system configuration.
- Power-up test — Monitor the front-panel status LEDs and confirm that the processor completes its normal initialization.
- System verification — Check memory access, VMEbus communication, serial ports, network interface, and application software before returning the system to service.
