Seagate ST92503010A ユーザーズマニュアル

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Momentus Thin Series SATA Product Manual, Rev. B
3
2.0
Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal 
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the 
ST92503010AS and ST91603010AS models.
2.1
Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or defi-
nition, see the appropriate section of this manual.
Table 1: 
Drive specifications
Drive specification
ST92503010AS
ST91603010AS
Formatted GB (512 bytes/sector)*
250
160
Guaranteed sectors
488,397,168
312,581,808
Bytes per sector
512
Physical read/write heads
2
Discs
1
Cache (MB)
8
Recording density in BPI (bits/in avg)
1434k
Track density TPI (tracks/in avg)
265k
Areal density (Gb/in
avg)
380
Spindle speed (RPM)
5400
Average latency (ms)
5.6
Internal transfer rate (Mb/s max)
1175
I/O data transfer rate (MB/s max)
300
ATA data-transfer modes supported
SATA 1.0, Serial ATA Revision 2.6
 
PIO modes 0–4
 
Multiword DMA modes 0–2
 
Ultra DMA modes 0–6
Height (max)
7.0 mm (0.276 in)
Width (max)
70.10 mm (2.76 in)
Length (max)
100.55 mm (3.959 in)
Weight (max)
<92.0 g (<0.203 lb)
Power-on to ready (sec typical)
3.4
Standby to ready (sec typical)
1.8
Track-to-track seek time, read (ms typical)
1
Average seek, read (ms typical)
14
Full-stroke seek, read (ms)
30 (max)
Startup current, +5V (max)
1.0A
Read/write power (typical)
Read: 1.4W; Write: 1.78W