Motorola MVME147S-1 | 25MHz VME CPU Board with 4MB DRAM and SCSI Interface

Motorola MVME147S-1 | 25MHz VME CPU Board with 4MB DRAM and SCSI Interface

  • Model: MVME147S-1
  • Brand: Motorola Computer Group
  • Series: MVME147S VMEbus Single Board Computer Family
  • Core Function: Provides embedded computing, VMEbus control, communication, and local processing functions for industrial and real-time control systems.
  • Product Type: VMEbus Single Board Computer / MPU Module
  • Key Specs:
    • MC68030 32-bit processor at 25 MHz
    • 4MB parity-protected DRAM
    • MC68882 floating-point coprocessor
    • VMEbus A32/D32 master interface
    • Integrated SCSI, Ethernet, and serial communication interfaces
Add To Quote
Category: SKU: Motorola MVME147S-1

Description

Key Technical Specifications

Parameter Value
Product Model MVME147S-1
Manufacturer Motorola Computer Group
Product Type VMEbus Single Board Computer / MPU Module
Processor Motorola MC68030
CPU Clock Speed 25 MHz
Floating Point Unit MC68882 Coprocessor
Main Memory 4MB Shared DRAM with parity
VMEbus Interface A32/D32 Master, A24/D16 compatible
VMEbus Function System controller, bus master, requester
Serial Interfaces Four RS-232C serial ports
Ethernet Interface Integrated Ethernet transceiver interface
Storage Interface SCSI bus interface with DMA
ROM Sockets Four ROM/PROM/EPROM/EEPROM sockets
Non-Volatile Memory Battery-backed CMOS RAM
Timers Two 16-bit programmable tick timers
Watchdog Timer Integrated hardware watchdog
Parallel Interface Centronics-compatible printer port
Board Format Double-high VMEmodule
Cooling Requirement Forced-air cooled VME chassis
Operating Temperature 0°C to +55°C

 

Product Introduction

 

Motorola MVME147S-1 Product Introduction

Motorola MVME147S-1 is a 6U VMEbus single board computer designed for embedded industrial computing and real-time control applications. It combines an MC68030 processor, local memory, VMEbus interface, SCSI controller, serial communication ports, and Ethernet capability on one processor module.

The Motorola MVME147S-1 remains relevant in legacy VME installations where existing application software and hardware interfaces depend on the original processor architecture. Before replacement, engineers should verify the VME backplane design, firmware compatibility, memory size, and connected transition modules.

MVME147S-1

Application Scenarios & Field Pitfalls (The Engineer’s Perspective)

 

Engineering Pain Point

An older industrial control cabinet experiences intermittent processor resets after decades of operation. The application software is stable, but replacing the controller is complicated because the system depends on VMEbus hardware, custom firmware, and legacy communication interfaces.

The MVME147S-1 is not just a CPU board. It is the processing core of a complete VME architecture. A replacement must match the surrounding hardware environment.

 

Typical Applications

  • Industrial Automation – Embedded controllers for legacy machine control systems and custom automation platforms.
  • Transportation Systems – Real-time monitoring and control equipment using VMEbus architectures.
  • Defense and Aerospace Test Equipment – Test platforms requiring deterministic embedded processing.
  • Power and Energy Systems – Legacy control cabinets using VME-based computing platforms.

 

Technical Pitfalls to Avoid

  1. Verify VME Backplane Requirements
    The MVME147S-1 requires proper P1 and P2 VMEbus connections for full functionality. Systems using only partial backplanes may lose serial, Ethernet, or I/O functions.
  2. Check Firmware and Boot Configuration
    Legacy VME systems often depend on stored boot parameters, ROM images, and custom application software. A replacement board may power up but fail to load the original application.
  3. Inspect Battery-Backed Memory Condition
    The board uses battery-backed clock and memory components. Aging batteries can cause loss of configuration data or startup issues.

 

Related Products

  • Motorola MVME147S-2
    Higher memory/speed variant within the MVME147S family. Used where the application requires additional processing resources.
  • Motorola MVME147SA-1
    Similar processor module with increased memory capacity comparede .
  • Motorola MVME147SB-1
    16MB DRAM version of the family. Suitable for applications requiring larger application memory.
  • Motorola MVME147SC-1
    32MB DRAM version for larger embedded software applications.
  • Motorola MVME162 Series
    Later-generation VME processor family offering upgraded processing capability and expanded system resources.
  • Motorola MVME712M Transition Module
    Compatible transition hardware used to access rear-panel I/O connections such as serial ports and other interfaces.
  • Motorola MVME147BUG Firmware Package
    Diagnostic and boot firmware environment used with MVME147 processor modules.
  • Motorola VMEbus Chassis Systems
    VME rack platforms providing power, cooling, and backplane connectivity for MVME processor boards.

Related products