Seagate ST9500325AS Momentus 5400.6 SATA Product Manual - Page 11

Table 2: Drive specifications for 250 and 160 GB models Drive specification ST9250315AS ST9250315ASG ST9160314AS ST9160314ASG ST9160301AS Formatted Gbytes (512 bytes/sector)* 250 160 Guaranteed sectors 488,397,168 312,581,808 Bytes per sector 512 Physical read/write heads 2 Discs 1 Cache (Mbytes) Recording density in BPI (bits/inch avg) Track density TPI (tracks/inch avg) Areal density (Gbits/inch2 avg) 8 1,490k 265k 394 1,238k 210k 269 Spindle speed (RPM) Average latency (msec) 5,400 5.6 Internal transfer rate (Mbits/sec max) 1,175 I/O data transfer rate 300 (Mbytes/sec max) ATA data-transfer modes supported SATA 1.0, Serial ATA Revision 2.6 PIO modes 0-4 Multiword DMA modes 0-2 Ultra DMA modes 0-6 Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0079 inches) Width (max) 69.85 mm +/- 0.25 mm (2.75 +/- 0.0098 inches) Length (max) 100.35 + 0.20 / - 0.25 mm (3.957 + 0.0079 / - 0.0098 inches) Weight (max) 93.5 grams (0.206 lb) 105 grams (0.23 lb) Power-on to ready (sec typical) 3.6 Power-on to ready (sec max) 3.8 Standby to ready (sec typical) 1.8 Standby to ready (sec max) 2 Track-to-track seek time, read (msec typical) 1 Average seek, read (msec typical) 14 Full-stroke seek, read (msec max) 30 Startup current, +5V (max) 1 amp Seek power (typical) 1.54 watts Read/write power (typical) Read: 1.40 watts; Write: 1.78 watts Idle mode, low power (typical) 0.67 watts Standby mode 0.20 watts (typical)*** 0.22 watts (typical)*** Sleep mode 0.20 watts (typical)*** 0.22 watts (typical)*** Voltage tolerance (including noise) Ambient temperature +5V ± 5% 0° to 60°C (operating), -40° to 70°C (nonoperating) Temperature gradient (°C per hour max) 20°C (operating) 35°C (nonoperating) Relative humidity 5% to 95% (operating) 5% to 95% (nonoperating) Relative humidity gradient 30% per hour max Wet bulb temperature (°C max) Altitude, operating 37.7 (operating) 40 (nonoperating) -304.8 m to 3,048 m (-1,000 ft to 10,000+ ft) Momentus 5400.6 SATA Product Manual, Rev. E 5