SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 4
DRIVE SPECIFICATIONS
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 following drive models:
The specification summaries listed in the following tables are for quick reference. For details on specification measurement or definition,
refer to the appropriate section of this manual.
Table 1 Drive Specifications Summary
Drive Specification
ST500LT012
ST500LT015
ST500LT025
ST500LT034
ST320LT012
ST320LT015
ST320LT025
ST320LT032
ST250LT012
ST250LT015
ST250LT025
ST250LT028
Formatted capacity
(1)
500 GB 320 GB 250 GB
Guaranteed sectors 976,773,168 625,142,448 488,397,168
Heads 2
Disks 1
Bytes per sector 512 (logical) / 4096 (physical)
Recording density 1875 Kb/in
Track density 375 Ktracks/in avg
Areal density 670 Gb/in
2
avg
Spindle speed 5400 RPM
Sustained data transfer rate OD 100 MB/s max
I/O data-transfer rate 600 MB/s max
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 16 MB
Height 6.8 +/- 0.2 mm (0.268 +/-.008 in)
Width 69.85 +/- 0.25 mm (2.750 +/- 0.010 in)
Length 100.35 +0.20 / -0.25 mm (3.951 +0.008 / -0.010 in)
Weight (typical) <95 g (0.209 lb)
Average latency 5.6 ms
Startup current (typical) 5V (peak) 1.0 A
Voltage tolerance (including noise) 5V ± 5%
Operating temperature 0° to 60°C
Nonoperating temperature
(Ambient)
–40° to 70°C
Temperature gradient (max)
20°C per hour max (operating)
35°C per hour max (nonoperating)
Relative humidity
5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max