Hitachi 7K250 - Deskstar - Hard Drive User Manual

Deskstar 7K250 Hard Disk Drive Specification
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7.6.2 Read DRQ interval time
For read sectors and read multiple operations the interval from the end of negation of the DRQ bit until setting of
the next DRQ bit is as follows:
• In the event that a host reads the status register only before the sector or block transfer DRQ interval, the
DRQ interval 4.2 µs
• In the event that a host reads the status register after or both before and after the sector or block transfer, the
DRQ interval is 11.5 µs

Hitachi 7K250 - Deskstar - Hard Drive Specifications

General

Capacity	250 GB
Form Factor	3.5 inch
RPM	7200
Cache	8 MB
Average Seek Time	8.5 ms