Motorola MVME‑147A VMEbus Single Board Computer

The Motorola MVME‑147A is a 6U double‑height VMEbus single‑board computer based on MC68030 32‑bit CPU, equipped with MC68882 floating‑point coprocessor. It integrates Ethernet, SCSI and multi‑channel serial ports, supporting real‑time operating systems for embedded industrial control and data acquisition.

This VME SBC has been discontinued by Motorola. It is widely stocked as aftermarket spare parts for legacy automation, power, aerospace and medical equipment maintenance and system retrofitting. It adopts rugged industrial design to adapt to harsh operating conditions.

Main Specifications

1. Brand: Motorola; Model:MVME‑147A; Type:VMEbus 6U Single Board Computer
2. Processor:MC68030 CPU with MC68882 floating‑point coprocessor, 16/25/33MHz options
3. On‑board Interfaces:10 Mbps Ethernet, SCSI controller, 4×RS‑232 serial communication ports
4. Memory:Configurable DRAM and boot ROM, real‑time clock and watchdog timer built‑in
5. Installation:6U VME rack mounting, P1/P2 VME backplane connectors, Industry Pack expansion slots
6. Operating Temperature:0℃ ~ +55℃ industrial grade, rugged anti‑vibration design
7. Supply Status:Original production discontinued, available as tested surplus or refurbished spare parts

Core Functions

1. Run real‑time operating systems such as VxWorks to implement embedded control and data processing.
2. Complete network communication, serial data transmission and SCSI storage access for field devices.
3. Watchdog timer and onboard diagnostic firmware support automatic fault detection and reset.
4. Expand I/O and special acquisition modules through Industry Pack interfaces for system upgrade.
5. Act as an independent computing node in VME rack systems to execute complex control algorithms.
6. Realize stable long‑term operation for legacy high‑reliability industrial and scientific equipment.

Application Scenarios

1. Legacy power plant DCS, industrial machine control, automated test and measurement systems.
2. Spare board replacement and routine maintenance of existing Motorola VME chassis systems.
3. Technical renovation and reliability upgrade of old‑generation aerospace and medical imaging equipment.
4. On‑site troubleshooting and replacement of failed VME single‑board computers on running devices.
5. Spare‑parts stocking for system integrators and industrial automation maintenance contractors.
6. Global aftermarket spare supply for technicians maintaining obsolete Motorola MVME series hardware.

FAQ

1. Q:What form factor does MVME‑147A adopt?
   A:It is a 6U double‑height board conforming to the standard VMEbus specification.
2. Q:What operating systems does it support?
   A:It is widely compatible with VxWorks, pSOS and other classic real‑time operating systems.

3. Q:Is this SBC still in original production?
   A:Motorola has stopped manufacturing this model, only tested surplus and refurbished spare units are available.