Abaco Systems / VMIC VMIVME-7452-303 Single Slot VME Floppy/Hard Disk Module

The Abaco Systems / VMIC VMIVME-7452-303 is a single-slot VME storage module that integrates floppy and hard disk capabilities into VMEbus systems. This passive VMEbus board connects via P2 user-defined pins to deliver IDE interface signaling to a Single Board Computer, while drawing power and ground from the VMEbus backplane. The module supports flexible drive configurations: a 3.5-inch 1.44 Mbyte floppy drive, hard disk drive up to 18.0 Gbyte capacity, or both drives simultaneously.

Optional Flash memory drive functionality is available. Connection to the SBC requires specific cable assemblies - the VMXC-3 for adjacent slot placement or VMXC-H for non-adjacent configurations. The VMIACC-0562 accessory enables conversion of P2 IDE and floppy signals to standard 40-pin and 34-pin headers for rear backplane integration.

Technical Specifications

• Form Factor: VME 6U single-slot (160 × 233.25 × 20.32 mm)


• Storage Options: 3.5-inch 1.44 Mbyte floppy drive; hard disk drive up to 18.0 Gbyte; optional Flash memory drive


• Interface: IDE connection via VME P2 user-defined pins; 34-pin floppy and 40-pin IDE connectors


• Power Supply: +5 V, 2.5 A maximum (spinup), <1.0 A typical (hard drive operation); draws from VMEbus P1 and P2


• Flash Drive Power Consumption: Sleep mode 200 µA @ 3.3 V or 500 µA @ 5.0 V; read/write 32–80 mA @ 3.3 V or 46–120 mA @ 5.0 V


• Operating Temperature: 5 to 50 °C ambient


• Storage Temperature: -25 to 60 °C


• Humidity: 20 to 80 percent non-condensing (maximum wet bulb 29 °C)

Key Features

• Passive VMEbus implementation - no active logic required


• Flexible dual-drive configuration supports floppy and hard disk concurrently


• Low power consumption meets embedded system constraints


• Standard VME double-height Eurocard footprint

Compatibility & Integration The VMIVME-7452-303 integrates with Abaco Systems/VMIC PC/AT VMEbus SBC boards. Compatible pairing options include the VMIVME-7589 CPU board or combinations such as VMIVME-7587 with VMIPMC-5588 Reflective Memory modules. Direct compatibility confirmed with VMIVME-5550, VMIVME-5576, and VMIVME-5588 memory boards.