Description
Technical Specifications
| Parameter | Details |
|---|---|
| Product Model | MVME172PA-644SE |
| Manufacturer | Motorola |
| Product Family | MVME172P4 |
| Hardware Generation | Petra II |
| Board Type | VME embedded controller |
| Processor | Motorola MC68060 |
| Processor Clock | 60 MHz |
| Processor Features | 16 KB cache, MMU, FPU |
| Main Memory | 16 MB configurable SDRAM |
| SRAM | 512 KB, battery-backed |
| Flash Memory | 2 MB |
| Nonvolatile Memory | 8 KB NVRAM with time-of-day clock |
| VMEbus Interface | A32/D64 master/slave, system controller function |
| Expansion | Four 16-bit or two 32-bit IndustryPack ports |
| Serial Interfaces | Two serial communication ports |
| SCSI | Included in the 644SE configuration |
| Ethernet | Included in the 644SE configuration |
| EPROM Socket | One 32-pin JEDEC socket |
| Typical +5 V Consumption | 1.5 A |
| Maximum +5 V Consumption | 1.75 A |
| Operating Temperature | 0°C to +55°C, forced-air cooling |
| Board Dimensions | Approximately 233.4 × 160 mm |
Specifications are based on the MVME172P4 documentation. The manual lists the MVME172PA-644SE as the Petra II, 60 MHz MC68060, SCSI-and-Ethernet configuration. Confirm installed memory, serial-interface module, and optional transition hardware on the actual board.
Product Introduction
Motorola MVME172PA-644SE Embedded Controller
The Motorola MVME172PA-644SE is a VMEbus embedded controller from the MVME172P4 Petra II family. It uses a 60 MHz MC68060 processor and provides 16 MB of configurable SDRAM, battery-backed SRAM, Flash memory, and onboard nonvolatile memory. Its four IndustryPack interfaces support modular I/O and peripheral expansion for embedded monitoring and control systems.

VME172PA644SE
The 644SE configuration includes SCSI and Ethernet interfaces, making this board suitable for legacy systems that rely on both local storage connectivity and network communication. Its VMEbus master/slave functions also support integration into established VME-based control architectures. Replacement work must account for the board generation, firmware, memory configuration, and transition-module wiring.
Application Scenarios & Field Pitfalls
The MVME172PA-644SE is relevant to legacy industrial and embedded systems where a VME processor board manages application logic, data acquisition, or communication with IndustryPack modules. Because the board is part of an older hardware generation, preserving the original software environment and interface configuration is often as important as matching the processor board itself.
Potential application areas
- VME-based industrial control and monitoring systems.
- Embedded data acquisition using IndustryPack I/O modules.
- Legacy equipment requiring SCSI storage and Ethernet communication.
- Control platforms using Motorola 68K-family application software.
Engineer checks before replacement
- Distinguish Petra II from Petra I. Confirm the full
MVME172PA-644SEmarking. TheMVME172P-644SEdesignation without theAis listed as a Petra I configuration. Do not assume the two are interchangeable. - Check the processor and memory configuration. Verify MC68060 processor type, installed SDRAM, SRAM backup condition, and Flash contents. A replacement board may not contain the original application firmware.
- Verify the serial-interface module. The board supports configurable serial interfaces. Confirm the installed SIMM/module type and DTE/DCE requirements against the original system wiring.
- Confirm transition-module compatibility. The optional MVME712M transition module provides external connections for onboard peripherals. Check P2 routing and cabling before transferring the board.
- Inspect backup batteries and stored data. Battery-backed SRAM and clock/NVRAM functions require attention during storage and commissioning. Check battery condition and preserve application data before removing the original board.
Related Products
- MVME172P-644SE — Petra I version with MC68060, SCSI, and Ethernet. It is closely related but differs in board generation; verify hardware and firmware compatibility before substitution.
- MVME172PA-644LSE — Petra II configuration with a 64 MHz MC68LC060 processor and SCSI/Ethernet. It differs from the 644SE processor configuration.
- MVME172PA-644LE — Petra II configuration with a 64 MHz MC68LC060 processor and Ethernet. SCSI availability differs from the 644SE configuration.
- MVME172PA-644L — Petra II version using the 64 MHz MC68LC060 processor. Check optional interface requirements before considering it.
- MVME712M — Optional transition module for connecting MVME172P4 peripheral signals to standard external interfaces. It is an accessory, not a processor-board replacement.
- MVME712P2 — P2 adapter module associated with the MVME172P4 system. Verify the required cable and transition arrangement before procurement.
Procurement recommendation: Use as the identification to verify with the supplier. Request photographs of the board label, processor, memory components, P1/P2 connectors, and serial-interface module. Confirm that the unit is Petra II and that its SCSI and Ethernet configuration matches the installed system.
