Maxtor STM3320820A User Manual

8

DiamondMax 21 PATA Product Manual, Rev. B

Formatted Gbytes (512 bytes/sector)*

160

80

Guaranteed sectors

312,581,808

156,301,488

Heads

2

1

Discs

1

Bytes per sector

512

Default sectors per track

63

Default read/write heads

16

Default cylinders

16,383

Recording density

824 kbits/in max

Track density

137.259 ktracks/in avg.

Areal density

101 Gbits/in

2 

avg

Spindle speed

7,200 RPM

Internal data transfer rate

930 Mbits/sec max

Sustained data transfer rate OD

78 Mbytes/sec max

I/O data-transfer rate

100 Mbytes/sec max

ATA data-transfer modes supported

PIO modes 0–4

 

Multiword DMA modes 0–2

 

Ultra DMA modes 0–5

Cache buffer

2 Mbytes

Height (max)

19.99 mm (0.787 inches)

Width (max)

101.6 mm (4.000 inches) +/- 0.010 inches

Length (max)

146.99 mm (5.787 inches)

Weight (max)

380 grams

365 grams

Average latency

4.16 msec

Power-on to ready (max)

7.9 sec 

Standby to ready (max)

7.9 sec

Track-to-track seek time (typical)

<1.0 msec (read),  <1.2 msec (write)

Average seek, read (typical)

<11.0 msec

Average seek, write (typical)

<12.0 msec

Startup current (typical) 12V (peak)

2.8 amps

Voltage tolerance (including noise)

5V ± 5%

 

12V ± 10%

Ambient temperature

0° to 60°C (operating)

 

–40° to 70°C (nonoperating)

Temperature gradient

20°C per hour max (operating)

 

30°C per hour max (nonoperating)

Relative humidity

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max

Wet bulb temperature

37.7°C max) (operating)

 

40.0°C max) (nonoperating)

Altitude, operating

–60.96 m to 3,048 m

 

(–200 ft. to 10,000+ ft.)

Altitude, nonoperating 

 

(below mean sea level, max)

–60.96 m to 12,192 m

 

(–200 ft. to 40,000+ ft.)

Operational Shock

63 G max at 2 msec

Non-Operational Shock

350 G max at 2 msec