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Seagate ST9250827AS Momentus 5400.4 SATA Product Manual - Page 9

Introduction - specification

UPC - 836367003305

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus® 5400.4 SATA model drives: • ST9250827AS • ST9200827AS • ST9160827AS • ST9120817AS These drives provide the following key features: • 5,400-RPM spindle speed. • 8-Mbyte buffer. • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second). • Perpendicular recording technology provides the drives with increased areal density. • State-of-the-art cache and on-the-fly error-correction algorithms. • Full-track multiple-sector transfer capability without local processor intervention. • 900 Gs nonoperating shock and 325 Gs of operating shock. • SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns. • The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industry's most comprehensive protection for disc drives. • Support for S.M.A.R.T. drive monitoring and reporting. • Support for Read Multiple and Write Multiple commands. Momentus 5400.4 SATA Product Manual, Rev. A 1

Section	Page
1.0 Introduction	9
1.1 About the Serial ATA interface	10
2.0 Drive specifications	11
2.1 Specification summary table	11
2.2 Formatted capacity	13
2.2.1 LBA mode	13
2.3 Default logical geometry	13
2.4 Physical organization	14
2.5 Recording and interface technology	14
2.6 Physical characteristics	14
2.7 Seek time	15
2.8 Start/stop times	15
2.9 Power specifications	16
2.9.1 Power consumption	16
2.9.1.1 Typical current profile	17
2.9.2 Deferred spinup	17
2.9.3 Conducted noise	17
2.9.4 Voltage tolerance	17
2.9.5 Power-management modes	18
2.10 Environmental specifications	19
2.10.1 Ambient temperature	19
2.10.2 Temperature gradient	19
2.10.3 Humidity	19
2.10.3.1 Relative humidity	19
2.10.3.2 Wet bulb temperature	19
2.10.4 Altitude	19
2.10.5 Shock	20
2.10.5.1 Operating shock	20
2.10.5.2 Nonoperating shock	20
2.10.6 Vibration	20
2.10.6.1 Operating vibration	20
2.10.6.2 Nonoperating vibration	20
2.11 Acoustic emission	21
2.12 Electromagnetic immunity	21
2.13 Reliability	22
2.14 Agency certification	22
2.14.1 Safety certification	22
2.14.2 Electromagnetic compatibility	22
2.14.3 FCC verification	23
2.15 Environmental protection	24
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	24
2.16 Corrosive environment	24
3.0 Configuring and mounting the drive	25
3.1 Handling and static-discharge precautions	25
3.2 Configuring the drive	26
3.3 Serial ATA cables and connectors	26
3.4 Drive mounting	27
4.0 Serial ATA (SATA) interface	29
4.1 Hot-Plug compatibility	29
4.2 Serial ATA device plug connector pin definitions	29
4.3 Supported ATA commands	31
4.3.1 Identify Device command	34
4.3.2 Set Features command	37
4.3.3 S.M.A.R.T. commands	38
5.0 Seagate Technology support services	39
A	41
B	41
C	41
D	41
E	41
F	41
G	41
H	42
I	42
K	42
L	42
M	42
N	42
O	42
P	42
Q	42
R	42
S	43
T	43
U	43
V	43