Specification Summary Table - Seagate Barracuda ATA Series Product Manual

2

Specification summary table

The specifications listed in this table are for quick reference. For details
on specification measurement or definition, see the appropriate section
of this manual.
Drive Specification ST328040A
ST327270A
Guaranteed Mbytes 28,520
6
( 10 bytes) 27,333
Guaranteed sectors 55,704,096
53,385,552
Bytes per sector
Default sectors per
track
Default read/write 16
heads
Default cylinders 16,383
Physical read/write
heads
Discs
Recording density
KBPI (bits/inch max)
Track density
TPI (tracks/inch)
Areal density
2
(Mbits/inch max)
Spindle speed
(RPM)
Internal data-trans-
fer rate (Mbits/sec
max)
I/O data-transfer
rate (Mbytes/sec-
max)
ATA data-transfer-
modes supported
Cache buffer
(Kbytes)
Height (mm max)
Barracuda ATA Family Product Manual, Rev. B
ST320430A ST313620A ST310220A ST36810A
20,520 13,666
40,079,088 26,692,776
512
63
16 16
16,383 16,383
8 6
4 3
305
16,420
5,100
7,200
323
66.6
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–4
512
26.1
10,242 6,833
20,005,650 13,346,235
16 15
16,383 14,123
4 3 2
2 2 1