Description
🔹 Product Overview
The MOTOROLA MVME162-532A is a high-performance VMEbus embedded controller designed for industrial computing, automation, test systems, telecommunications, and legacy machine-control platforms.
The MVME162-532A belongs to the Motorola MVME162 family and uses a 32 MHz MC68040 32-bit processor. The -532A configuration includes 16 MB DRAM, Ethernet capability, four IndustryPack expansion interfaces, and two serial communication ports. The MVME162-532A does not include the SCSI option associated with the -533A configuration.
This board is particularly useful for maintaining established VMEbus systems where the existing application software and hardware architecture depend on the Motorola 68040 processor platform.

⚙️ Key Features
🔹 32 MHz MC68040 32-bit processor
🔹 16 MB DRAM
🔹 Ethernet interface
🔹 Four IndustryPack expansion interfaces
🔹 Two serial communication ports
🔹 VMEbus A32/D64 master and slave capability
🔹 1 MB Flash memory
🔹 512 KB battery-backed SRAM
🔹 NVRAM and real-time clock functions
🔹 Integrated diagnostic and debugger firmware
The MVME162-532A configuration is listed as a 32 MHz MC68040 controller with 16 MB memory and Ethernet. Motorola’s later product transition documentation also identifies the MVME162P-344E as a replacement platform for the MVME162-532A.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | MOTOROLA |
| Model | MVME162-532A |
| Series | MVME162 Series |
| Product Name | VME Embedded Controller Board |
| Processor | MC68040 |
| CPU Speed | 32 MHz |
| Main Memory | 16 MB DRAM |
| Ethernet | Yes |
| SCSI Interface | No |
| Serial Ports | 2 |
| IndustryPack Interfaces | 4 |
| Flash Memory | 1 MB |
| SRAM | 512 KB Battery-Backed |
| VMEbus | A32/D64 Master/Slave |
| Form Factor | Double-High 6U VME Module |
| Product Origin | United States |
| Condition | Verify from the actual unit |
| Input Power | VMEbus DC power; verify system configuration |
| Application | Industrial Embedded Computing |
The MVME162 family specifications identify the MC68040, 16 MB DRAM configuration, VMEbus architecture, Flash memory, SRAM, serial ports, IndustryPack interfaces, and Ethernet option as part of the relevant MVME162 platform.
🖥️ Processor and Memory Architecture
The MVME162-532A is based on the Motorola MC68040 processor, a 32-bit embedded microprocessor that integrates cache, memory-management functions, and a floating-point unit.
The board’s 16 MB DRAM provides working memory for the operating system and application software. The controller also includes nonvolatile memory resources used for firmware, system configuration, and startup functions.
The combination of DRAM, Flash memory, SRAM, and NVRAM makes the MVME162 platform suitable for standalone embedded control applications where reliable startup and long-term system operation are important.
🌐 Communication and Expansion
The MVME162-532A provides Ethernet capability for network communication within industrial or embedded computer systems.
Two serial ports support communication with external devices and legacy equipment. Depending on the installed configuration and transition hardware, serial communication can be used for equipment interfaces, diagnostics, or external controller communication.
Four IndustryPack interfaces allow the controller to be expanded with application-specific I/O modules. This modular design allows the same CPU platform to be adapted for different industrial applications.
🏭 Typical Applications
The MOTOROLA MVME162-532A is commonly suitable for legacy systems involving:
🔹 Industrial automation
🔹 Semiconductor manufacturing equipment
🔹 Test and measurement systems
🔹 Telecommunications equipment
🔹 Data acquisition systems
🔹 Machine-control platforms
🔹 Transportation and infrastructure systems
🔹 Scientific instrumentation
🔹 Legacy VMEbus computer systems
For many older systems, replacing the entire VME architecture can require major software and hardware changes. Maintaining an exact MVME162-series controller can therefore be a practical option for extending the service life of an existing installation.
🔧 Installation Recommendations
Before installing a replacement MVME162-532A, verify the following:
- Confirm the complete model number: MVME162-532A.
- Compare the CPU and memory configuration.
- Inspect the VME P1 and P2 connectors.
- Verify the installed IndustryPack modules.
- Confirm Ethernet and serial communication requirements.
- Check the system firmware and boot configuration.
- Record jumper and switch positions before removing the original board.
- Use proper ESD protection during handling.
- Confirm the VME chassis power supply is operating correctly.
- Perform a controlled system startup after installation.
Do not assume that another MVME162 model is directly interchangeable simply because the PCB layout is similar.
🛠️ Maintenance and Inspection
Before installing a stored or replacement board, inspect:
🔍 VMEbus connector contacts
🔍 IndustryPack connectors
🔍 Ethernet interface
🔍 Serial communication interfaces
🔍 Battery-backed memory components
🔍 PCB surface condition
🔍 Signs of corrosion or oxidation
🔍 Capacitor condition
🔍 Revision labels
🔍 Configuration jumpers
For long-term storage, the board should be protected from electrostatic discharge, excessive humidity, contamination, and mechanical shock.
❓ Frequently Asked Questions
Q: What processor is used in the MVME162-532A?
A: The MVME162-532A uses a 32 MHz Motorola MC68040 32-bit processor.
Q: How much memory does this model have?
A: The MVME162-532A configuration is associated with 16 MB of DRAM.
Q: Does the MVME162-532A have Ethernet?
A: Yes. The -532A model is the Ethernet configuration within the 16 MB MC68040 version group.
Q: Does the MVME162-532A include SCSI?
A: No. In the ordering configuration, the -532A is identified as the Ethernet-only model, while the -533A adds both SCSI and Ethernet.
Q: Can another MVME162 board replace the MVME162-532A?
A: Compatibility should not be assumed. Compare the processor, memory size, Ethernet configuration, SCSI option, IndustryPack requirements, firmware, and system application before selecting a substitute.
🔄 Other Recommended MOTOROLA MVME162 Models
🔹 MVME162-521A — 32 MHz MC68040, 8 MB, SCSI
🔹 MVME162-522A — 32 MHz MC68040, 8 MB, Ethernet
🔹 MVME162-523A — 32 MHz MC68040, 8 MB, SCSI and Ethernet
🔹 MVME162-530A — 32 MHz MC68040, 16 MB, standard configuration
🔹 MVME162-531A — 32 MHz MC68040, 16 MB, SCSI
🔹 MVME162-533A — 32 MHz MC68040, 16 MB, SCSI and Ethernet
🔹 MVME162-512A — 32 MHz MC68040, 4 MB, Ethernet
🔹 MVME162-513A — 32 MHz MC68040, 4 MB, SCSI and Ethernet
🔹 MVME162-532 — Earlier configuration of the same 16 MB Ethernet platform
🔹 MVME162P-344E — Later replacement platform for MVME162-532A systems
The related models differ in memory capacity and interface options, so the exact system configuration should always be checked before substitution.
🏷️ Recommended eBay SEO Title
MOTOROLA MVME162-532A | VME Embedded Controller Board 32MHz MC68040 16MB Ethernet
🇨🇳 Short Chinese Product Name
MOTOROLA MVME162-532A | VME嵌入式控制器板
