INTRODUCTION — 

The VMIVME-7452 is a passive board that holds one floppy and one hard drive with an optional Flash drive available.

The board is a 6U VMEbus form factor, deriving its power from the standard VMEbus P1 and P2.

The VMIVME-7452 has been designed to interface to VMIC’s line of VMEbus-compatible PC/AT SBC boards. 

These SBC boards incorporate the floppy and IDE controllers on-board. Refer to the compatible SBC list in this specification.

SPECIFICATIONS

Physical Dimensions: Standard VME double height Eurocard (one slot)

160 x 233.25 x 20.32 mm

User Connectors: 34-pin floppy drive 40-pin IDE

Ambient Temperature:

All Disks: 5 to 50 ˚C, operating

Storage: -25 to 60 ˚C

Rate: 20 ˚C per hr maximum

Humidity: 20 to 80 percent, noncondensing, maximum 

wet bulb 29 ˚C

Hard Drive Access Time:

Average Access Time: 14 ms

Average Latency: 6.67 ms

Power Requirements:

+5 V, 2.5 A maximum (spinup)

<1.0 A typical

Flash Drive System Performance:

Data Transfer Rate to Flash: 4.0 Mbyte/s burst

Data Transfer Rate from Flash: 6.0 Mbyte/s burst

Sleep to Write: 2.5 ms maximum

Sleep to Read: 2.0 ms maximum

Reset to Ready: 50 ms, typical, 400 ms, maximum

Flash Drive System Performance:

DC Input Voltage (Commercial): 5 V ±10%, 

3.3 V ±5%

Power Consumption:

Sleep: 200 µA at 3.3 V, 500 µA at 5.0 V

Read: 32 to 80 mA at 3.3 V, 46 to 120 mA at 5.0 V

Write: 32 to 80 mA at 3.3 V, 46 to 120 mA at 5.0 V

Compatible SBC Boards:

VMIVME-7591 VMIVME-7698

VMIVME-7592 VMIVME-7740

VMIVME-7695 VMIVME-7750

VMIVME-7697 VMIVME-7751

VMIVME-7697A VMIVME-7765