The Motorola MVME 133S-001A (Part Number 64-W5001B01A) is a high-performance VMEbus single-board computer based on the MC68020 microprocessor, designed for demanding industrial control and real-time computing applications.
Product Parameters (Datasheet)
- Model Number: MVME 133S-001A
- PCB Part Number: 64-W5001B01A
- Microprocessor: Motorola MC68020 (32-bit architecture)
- Floating Point Coprocessor: MC68881 (standard on 133S variants)
- Clock Speed: 12.5 MHz or 16.67 MHz (variant dependent)
- Memory: 1 MB or 4 MB of dual-ported Dynamic RAM (DRAM)
- ROM/EPROM Capacity: Four 28-pin sockets for up to 256 KB of user firmware
- Bus Interface: VMEbus (A24/A32: D32) Master/Slave compatibility
- Serial I/O: Two RS-232C multiprotocol serial ports (Z8530 SCC)
- Timers: Three 16-bit programmable timers (MC68230 PIT)
- Form Factor: Standard Double-Height VMEbus board
Country of Origin
This board was originally designed and manufactured in the United States by Motorola Computer Systems, a pioneer in the VMEbus architecture.
Application Fields
The MVME 133S series is a staple in legacy industrial systems, including:
- Aerospace & Defense: Used in flight simulators and ground control telemetry.
- Semiconductor Manufacturing: Controlling wafer processing and lithography equipment.
- Power Grid Monitoring: Serving as a processing node in older SCADA systems.
- Robotics: Executing complex motion control algorithms for multi-axis industrial arms.
Product Usage Instructions
- Jumper Configuration: Before insertion, verify the jumper settings for VMEbus addressing (A24/A32) and interrupt levels according to your system map.
- ESD Handling: Always use a grounded wrist strap; the 68020 and DRAM chips are highly sensitive to static discharge.
- Installation: Insert the board into a powered-down VME chassis. Ensure the P1 and P2 connectors are fully aligned before seating the board using the injector/ejector handles.
- Cooling: Ensure the chassis has active fan cooling, as the MC68020/68881 chipset generates significant heat during continuous processing.
- Firmware: If replacing an existing board, move the EPROMs from the old unit to the corresponding sockets on the new 133S-001A.
Product Technical Description
The MVME 133S-001A is an evolution of the standard MVME 133, with the “S” suffix often denoting specific memory configurations or the inclusion of the Floating Point Unit (FPU). Technically, it utilizes a 32-bit internal data path and provides high-speed access to its dual-ported RAM, allowing the CPU and the VMEbus to access memory simultaneously with minimal contention. Its inclusion of the MC68881 coprocessor makes it particularly effective for mathematical modeling and high-precision scientific calculations in real-time.
Q&A (Common Questions)
Q: What is the primary difference between the 133 and 133S? A: The 133S usually includes the MC68881 Floating Point Coprocessor as a standard factory-installed component for math-heavy applications.
Q: Can I upgrade the onboard RAM? A: The RAM is typically soldered to the board; capacity is determined at the time of manufacture (e.g., 1MB vs 4MB versions).
Q: Does this board support VME64? A: No, this is a legacy VMEbus board. While it can physically sit in a VME64 backplane, it operates using the standard VME specification (D32/A32).
Q: What operating systems are compatible? A: Historically, this board is used with VxWorks, OS-9, and Motorola’s proprietary VERSAdos or SYSTEM V/68.
Similar Model Recommendations
- Motorola MVME 133-1 (Standard version without FPU)
- Motorola MVME 147 (Next generation MC68030 processor)
- Motorola MVME 162 (MC68040 based with IP carrier slots)
- Motorola MVME 101 (Basic 68000 series VME board)
- Motorola MVME 133XT (Extended clock speed variant)
For sourcing and technical support for the Motorola MVME 133S-001A and other VMEbus modules, please contact our specialists.
