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SEAGATE LAPTOP ULTRATHIN HDD SATA PRODUCT MANUAL, REV. C 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.
Drive Specification ST500LT032 and ST500LT033 ST320LT030 and ST320LT031
Formatted capacity
(1)
500 GB 320 GB
Guaranteed sectors 976,773,168 625,142,448
Heads 2
Disks 1
Bytes per sector 512 (logical) / 4096 (physical)
Recording density 1885 Kb/in
Track density 366 Ktracks/in avg
Areal density 690 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 5.0 ± 0.20 mm (0.197 ± 0.008 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) <93g (0.205lb)
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
Wet bulb temperature (max)
37.7°C max (operating)
40.0°C max (nonoperating)
Altitude, operating –304.8 m to 3048 m (–1000 ft to 10,000+ ft)
Altitude, nonoperating
(below mean sea level, max)
–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
Operational Shock 400 Gs at 2 ms max
Non-Operational Shock 1000 Gs at 1 ms max