Product Details:

MOTOROLA 01-W3507B is a VME bus memory expansion module, commonly matched with MVME series single board computers for industrial and semiconductor equipment. This memory board adopts VMEbus interface architecture and supports ECC error correction function to improve data reliability in long-running industrial systems. This variant is configured with high-capacity ECC DRAM, with dedicated memory control logic on board, supporting A16/A24/A32 addressing space and D8/D16/D32 block data transmission. It follows standard VMEbus signal definition and can be installed in the 6U VME rack together with CPU board and other peripheral modules. It integrates status detection circuit for memory self-test and fault reporting, and supports continuous data refresh during system operation. This legacy embedded module is end-of-life, available stock are refurbished replacement spares for vintage industrial and test automation systems.

This memory module can work as a VME slave device and provides extended high-reliability storage space for the main VME CPU board. The built-in ECC logic can automatically detect and correct single-bit memory errors to avoid system crash caused by memory bit flip in complex electromagnetic environment. It connects to the VME backplane directly and realizes high-speed data sharing among multiple VME boards. Users can deploy it together with MC68K or PowerPC series MVME host boards to expand system memory capacity for large data buffering, image caching and data logging tasks. Optimized PCB layout reduces crosstalk of high-speed signal, and it maintains stable compatibility with VxWorks, OS-9 and other classic real-time operating systems for VME platform.

It adopts standard single-high 6U eurocard mechanical specification and draws +5V, ±12V power supply from the VME backplane. Front panel provides status LED indicators for power, access and fault alarm. Hot swap operation is not supported; power supply must be shut down before installation or removal. The PCB and soldering assembly meet industrial shock and vibration specifications for cabinet mounting.

It is widely deployed in semiconductor test equipment, industrial control subsystems and long-cycle industrial data logging racks requiring expandable ECC memory for VME system. Typical application scenarios include memory capacity upgrade for legacy MVME CPU rack, high-capacity data buffer system maintenance and vintage automation platform retrofit. Automation integrators select this Motorola 01-W3507B for its VMEbus ECC memory expansion,stable data buffering capability.