Seagate ST160LT007 Momentus Thin SATA Product Manual - Page 11

Momentus Thin Series SATA Product Manual, Rev. B

5

2.2

Formatted capacity

Model

Formatted capacity*

Guaranteed sectors

Bytes per sector

ST92503010AS

250 GB

488,397,168

512

ST91603010AS

160 GB

312,581,808

*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

2.2.1

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to

n–1,

where

n

is

the number of guaranteed sectors as defined above

.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-

bit addressing support of drives with capacities over 137 GB.

2.3

Default logical geometry

Cylinders

Read/write heads

Sectors per track

16,383

16

63

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to

n–1,

where

n

is

the number of guaranteed sectors as defined above

.

2.4

Physical organization

Drive model

Read/write heads

Number of discs

ST92503010AS

2

1

ST91603010AS

2.5

Recording and interface technology

Interface

Serial ATA (SATA)

Recording method

Perpendicular

Recording density BPI (bits/in avg)

1434k

Track density TPI (tracks/in avg)

265k

Areal density (Gb/in

2

avg)

380

Spindle speed (RPM) (

±

0.2%)

5400

Maximum Internal transfer rate (Mb/s)

1175

I/O data-transfer rate (MB/s max)

300

Interleave

1:1

Cache buffer

8 MB (8,192 KB)

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	11
2.2.1 LBA mode	11
2.3 Default logical geometry	11
2.4 Physical organization	11
2.5 Recording and interface technology	11
2.6 Physical characteristics	12
2.7 Seek time	12
2.8 Start/stop times	12
2.9 Power specifications	13
2.9.1 Power consumption	13
2.9.1.1 Typical current profile	14
2.9.2 Deferred spinup	14
2.9.3 Conducted noise	14
2.9.4 Voltage tolerance	14
2.9.5 Power-management modes	15
2.10 Environmental specifications	16
2.10.1 Ambient temperature	16
2.10.2 Temperature gradient	16
2.10.3 Humidity	16
2.10.3.1 Relative humidity	16
2.10.3.2 Wet bulb temperature	16
2.10.4 Altitude	16
2.10.5 Shock	17
2.10.5.1 Operating shock	17
2.10.5.2 Nonoperating shock	17
2.10.6 Vibration	17
2.10.6.1 Operating vibration	17
2.10.6.2 Nonoperating vibration	17
2.11 Acoustics	18
2.12 Electromagnetic immunity	18
2.13 Reliability	19
2.14 Agency certification	19
2.14.1 Safety certification	19
2.14.2 Electromagnetic compatibility	19
2.14.3 FCC verification	20
2.15 Environmental protection	21
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	21
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive	21
2.16 Corrosive environment	21
3.0 Configuring and mounting the drive	22
3.1 Handling and static-discharge precautions	22
3.2 Configuring the drive	23
3.3 Serial ATA cables and connectors	23
3.4 Drive mounting	24
4.0 Serial ATA (SATA) interface	25
4.1 Hot-Plug compatibility	25
4.2 Serial ATA device plug connector pin definitions	25
4.3 Supported ATA commands	27
4.3.1 Identify Device command	30
4.3.2 Set Features command	34
4.3.3 S.M.A.R.T. commands	35
5.0 Seagate Technology support services	36
Index	39
A	39
B	39
C	39
D	39
E	39
F	39
G	39
H	40
I	40
K	40
L	40
M	40
N	40
O	40
P	40
Q	40
R	40
S	41
T	41
U	41
V	41

Seagate ST160LT007 Momentus Thin SATA Product Manual - Page 11

Formatted capacity, Default logical geometry, Physical organization, Recording and interface

Page 11 highlights