ST1 Series Product Manual, Rev. A
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
ST650211CF, ST650211FX, ST625211FX, and ST625211CF model drives.
2.1
Power, access times and acoustics
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:
Specifications
Drive specification
ST650211CF
ST650211FX
ST625211CF
ST625211FX
Formatted Gbytes (512 bytes/sector)
5.0
2.5
Guaranteed sectors
9,767,520
4,883,760
Bytes per sector
512
Physical read/write heads
2
1
Discs
1
1
Cache (Mbytes)
2
Recording density, BPI (bits/inch max)
651,000
Track density. TPI (tracks/inch max)
105,000
Areal density (Gbits/inch
2
max)
68.3
Spindle speed (RPM)
3,600
Internal data transfer rate OD (Mbytes/sec max)
9.67
Sustained data transfer rate OD (Mbytes/sec)
7.0
I/O data-transfer rate (Mbytes/sec max)
33.3MB/s (UDMA 2)
ATA data-transfer modes supported
PIO modes 0–4;
Multiword DMA modes 0-2;
Ultra DMA modes 0–2
Height
5.0 max (0.1968 inches max)
Width
42.80 +/-0.101 mm (1.685 +/-0.004 inches)
Length
36.40 +/-0.15 mm (1.433 +/-0.006 inches)
Weight (typical)
19 grams (0.041 lb.)
Average latency (msec)
8.3
Power-on to ready (sec typical / max)
2.0 / 2.5
Standby to ready (sec typical / max)
2.0 / 2.5
Startup current 5V (peak) (maximum RMS in 10ms window)
300 mA
Track-to-track average seek time (msec typical, read)
2.0
Average seek time (msec typical, read)
2.0
Summary of Contents for ST625211CF
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