Chapter 1 21
Hard Disk Drive Interface)
Item Specification
Vendor Seagate
Model Name
ST9160310AS ST9250320AS ST9320320AS
Capacity (MB) 160 250 320
Bytes per sector 512
Data heads 2 4 4
Drive Format
Disks 1 2 2
Spindle speed (RPM) 5,400
Performance Specifications
Buffer size 8MB
Interface SATA
Internal transfer rate
(Mbits/sec max)
830
I/O data transfer rate
(Mbytes/sec max)
300
DC Power Requirements
Voltage tolerance 5V(DC) +/- 5%