Xycom 70100-001

Xycom 70100-001 is a VME-bus XVME-100 Memory Module (also known as an EEPROM Memory Module) from the Xycom series. It is a single-height (6U) VME card designed to provide programmable RAM, EPROM, EEPROM, or mask ROM within VME-bus systems, supporting up to approximately 1 MB of memory devices.

Key Features

Compatibility:
Compliant with VME-bus (16-bit/32-bit) standards and can be directly inserted into a 6U VME slot.

Memory Capacity:
Supports up to 1 MB of memory, with optional RAM/EPROM/EEPROM capacities such as 8 KB, 64 KB, 256 KB, and 1 MB.

Configurable Design:
On-board jumpers (J-series) allow configuration of memory type, base address, access speed (100 ns to 250 ns), and backup power mode (battery or +5 V standby) for each memory bank.

Power Monitoring:
Built-in power-sense circuitry automatically disables memory when VME supply voltage drops below 4.75 V, preventing data corruption.

Backup Power:
Supports external batteries or a +5 V standby supply to retain data during power loss.

Mechanical Dimensions:
Single-height 6U form factor (approx. 160 mm × 100 mm), weight about 1 kg.

Typical Applications

• Firmware or parameter storage for industrial automation control systems
• Embedded VME computers or I/O modules requiring reliable non-volatile memory
• Program loading media for programmable logic or DSPs in VME-based systems

Usage Notes

VME Rack Installation:
Insert the XVME-100 into an empty 6U slot and configure the required memory capacity and base address using the jumpers.

Power & Backup:
Check jumpers J34/J35 to select between battery backup and +5 V standby power.

Address Mapping:
Ensure the configured base address and address modifier do not conflict with the host system’s VME address space.

Memory Device Installation:
Insert the selected RAM/EPROM/EEPROM chips into the corresponding 32-pin sockets and ensure proper seating.

In summary, the Xycom 70100-001 (XVME-100) is a flexible and configurable VME-bus memory module suitable for industrial control and embedded systems that require reliable and programmable non-volatile memory.