Seagate ST9500325AS Momentus 5400.6 SATA Product Manual - Page 9

Momentus 5400.6 SATA Product Manual, Rev. E

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 the

Momentus 5400.6 SATA models.

2.1

Specification summary table

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:

Drive specifications for 500, 400 and 320 GB models

Drive specification

ST9500325AS

ST9500325ASG

ST9400326AS

ST9320325AS

ST9320325ASG

Formatted Gbytes (512 bytes/sector)*

500

400

320

Guaranteed sectors

976,773,168

781,422,768

625,142,448

Bytes per sector

512

Physical read/write heads

4

3

Discs

2

2

Cache (Mbytes)

8

Recording density in BPI (bits/inch avg)

1,490k

Track density TPI (tracks/inch avg)

265k

Areal density (Gbits/inch

2

avg)

394

Spindle speed (RPM)

5,400

Average latency (msec)

5.6

Internal transfer rate (Mbits/sec max)

1,175

I/O data transfer rate

(Mbytes/sec max)

300

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)

98.8 grams (0.218 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

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	14
2.2.1 LBA mode	15
2.3 Default logical geometry	15
2.4 Physical organization	15
2.5 Recording and interface technology	15
2.6 Physical characteristics	16
2.7 Seek time	16
2.8 Start/stop times	16
2.9 Power specifications	17
2.9.1 Power consumption	17
2.9.1.1 Typical current profile	18
2.9.2 Deferred spinup	18
2.9.3 Conducted noise	18
2.9.4 Voltage tolerance	18
2.9.5 Power-management modes	19
2.10 Environmental specifications	20
2.10.1 Ambient temperature	20
2.10.2 Temperature gradient	20
2.10.3 Humidity	20
2.10.3.1 Relative humidity	20
2.10.3.2 Wet bulb temperature	20
2.10.4 Altitude	20
2.10.5 Shock	21
2.10.5.1 Operating shock	21
2.10.5.2 Nonoperating shock	21
2.10.6 Vibration	21
2.10.6.1 Operating vibration	21
2.10.6.2 Nonoperating vibration	21
2.11 Acoustics	22
2.12 Electromagnetic immunity	22
2.13 Reliability	23
2.13.1 Free Fall Protection feature	23
2.14 Agency certification	24
2.14.1 Safety certification	24
2.14.2 Electromagnetic compatibility	24
2.14.3 FCC verification	25
2.15 Environmental protection	26
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	26
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive	26
2.16 Corrosive environment	26
3.0 Configuring and mounting the drive	27
3.1 Handling and static-discharge precautions	27
3.2 Configuring the drive	28
3.3 Serial ATA cables and connectors	28
3.4 Drive mounting	29
4.0 Serial ATA (SATA) interface	31
4.1 Hot-Plug compatibility	31
4.2 Serial ATA device plug connector pin definitions	31
4.3 Supported ATA commands	33
4.3.1 Identify Device command	35
4.3.2 Set Features command	39
4.3.3 S.M.A.R.T. commands	40
5.0 Seagate Technology support services	41
Index	43
A	43
B	43
C	43
D	43
E	43
F	43
G	43
H	44
I	44
K	44
L	44
M	44
N	44
O	44
P	44
Q	44
R	44
S	45
T	45
U	45
V	45

Seagate ST9500325AS Momentus 5400.6 SATA Product Manual - Page 9

Drive specifications - momentus 5400 6

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