Seagate ST500LM021 - 2 Drive Specifications

Seagate Laptop Thin HDD Product Manual, Rev. E 7
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 ST500LM021, ST500LM023
& ST500LM024
ST320LM010
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 1875 Kb/in
Track density 375 Ktracks/in avg
Areal density 670 Gb/in
2
avg
Spindle speed 7200 RPM
Sustained data transfer rate OD 135 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 32 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 4.2ms
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)