Datasheet

12 DiamondMax 20 PATA Product Manual, Rev. A
2.2 Formatted capacity
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ-
ment and formatting.
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geometry
Model
Formatted
capacity*
Guaranteed
sectors Bytes per sector
STM3300622A 300 Gbytes 586,072,368 512
STM3250623A 250 Gbytes 488,397,168 512
STM3250624A 250 Gbytes 488,397,168 512
STM3200827A 200 Gbytes 390,721,968 512
STM3160212A 160 Gbytes 312,581,808 512
STM3160812A 160 Gbytes 312,581,808 512
STM3802110A 80 Gbytes 156,301,488 512
STM3402111A 40 Gbytes 78,165,360 512
Cylinders Read/write heads Sectors per track
16,383 16 63