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LD25 Series 5400.2 Product Manual, Rev. C
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
ST980210A, ST980210AS, ST960210A, ST960210AS, ST940210A, ST940210AS and ST920210AS model
drives.
2.1 Specification summaries
The specifications listed in the following two tables are provided for quick reference. For details on specification
measurement or definition, see the appropriate section of this manual.
Table 1: Specification summary for ATA/PATA (Parallel ATA) models
Drive specification ST980210A ST960210A ST940210A
Formatted Gbytes (512 bytes/sector)* 80 60 40
Guaranteed sectors 156,501,488 117,210,240 78,340,160
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Spindle speed (RPM) 5,400
Internal data transfer rate OD (Mbytes/sec max) >40
I/O data-transfer rate (Mbytes/sec max) 100
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes) 2
Height 9.5 ± 0.2 mm (0.374 ± .008 inches)
Width 69.85 ± 0.25 mm (2.750 ± 0.010 inches)
Length 100.2 ± 0.25 mm (3.945 ± 0.010 inches)
Weight (typical) 100 grams (0.22 lb)
Average latency (msec) 5.6
Power-on to ready (sec typical) 3.0
Standby to ready (sec typical) 3.0
Track-to-track seek time (msec typical) 1.0 (read), 1.5 (write)
Average seek, read (msec typical) <14
Average seek, write (msec typical) <15
Full-stroke seek (msec) <23 (read); <26 (write)
Startup current 5V (amps typical) (max = +/- 10%) 1.0
Seek power, random r/w, desktop usage (watts, typical) 2.3
Idle mode (watts, typical) 1.95