• Optional Flash drive
• 3.5-inch 1.44 Mbyte floppy drive
• Standard VMEbus 6U single-slot form factor
• Low power
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
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