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Seagate ST3250623A Barracuda 7200.8 PATA Product Manual - Page 17

Physical characteristics, Seek time, Start/stop times

UPC - 763649002001

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2.5 Physical characteristics Drive specification Maximum height (mm) (inches) Maximum width (mm) (inches) Maximum length Max weight (mm) (inches) (grams) (pounds) 26.11 1.028 101.85 4.010 146.99 5.787 635 1.39 2.6 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead. *Typical seek times (msec) Track-to-track Average Average latency: Read 0.8

Section	Page
1.0 Introduction 1	3
2.0 Drive specifications 3	3
2.1 Specification summary table 3	3
2.2 Formatted capacity 10	3
2.2.1 LBA mode 10	3
2.3 Default logical geometry 10	3
2.4 Recording and interface technology 10	3
2.5 Physical characteristics 11	3
2.6 Seek time 11	3
2.7 Start/stop times 11	3
2.8 Power specifications 12	3
2.8.1 Power consumption 12	3
2.8.2 Conducted noise 13	3
2.8.3 Voltage tolerance 13	3
2.8.4 Power-management modes 14	3
2.9 Environmental specifications 15	3
2.9.1 Ambient temperature 15	3
2.9.2 Temperature gradient 15	3
2.9.3 Humidity 15	3
2.9.4 Altitude 15	3
2.9.5 Shock 16	3
2.9.6 Vibration 16	3
2.10 Acoustics 17	3
2.11 Electromagnetic immunity 17	3
2.12 Reliability 18	3
2.13 Agency certification 18	3
2.13.1 Safety certification 18	3
2.13.2 Electromagnetic compatibility 18	3
2.13.3 FCC verification 19	3
2.14 Environmental protection 20	3
2.15 Corrosive environment 20	3
3.0 Configuring and mounting the drive 21	3
3.1 Handling and static discharge precautions 21	3
3.2 Breather filter hole precautions 22	3
3.3 Jumper settings 23	3
3.3.1 Master/slave configuration 23	3
3.3.2 Cable-select option 23	3
3.3.3 Alternate capacity jumper 23	3
3.3.4 Ultra ATA/100 cable 24	3
3.4 Drive mounting 24	3
4.0 ATA interface 27	3
4.1 ATA interface signals and connector pins 27	3
4.1.1 Supported ATA commands 28	3
4.1.2 Identify Device command 30	3
4.1.3 Set Features command 33	3
4.1.4 S.M.A.R.T. commands 33	3
5.0 Seagate Technology support services 35	3
1.0 Introduction	7
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	16
2.2.1 LBA mode	16
2.3 Default logical geometry	16
2.4 Recording and interface technology	16
2.5 Physical characteristics	17
2.6 Seek time	17
2.7 Start/stop times	17
2.8 Power specifications	18
2.8.1 Power consumption	18
2.8.1.1 Typical current profile	19
2.8.2 Conducted noise	19
2.8.3 Voltage tolerance	19
2.8.4 Power-management modes	20
2.9 Environmental specifications	21
2.9.1 Ambient temperature	21
2.9.2 Temperature gradient	21
2.9.3 Humidity	21
2.9.3.1 Relative humidity	21
2.9.3.2 Wet bulb temperature	21
2.9.4 Altitude	21
2.9.5 Shock	22
2.9.5.1 Operating shock	22
2.9.5.2 Nonoperating shock	22
2.9.6 Vibration	22
2.9.6.1 Operating vibration	22
2.9.6.2 Nonoperating vibration	22
2.10 Acoustics	23
2.11 Electromagnetic immunity	23
2.12 Reliability	24
2.13 Agency certification	24
2.13.1 Safety certification	24
2.13.2 Electromagnetic compatibility	24
2.13.3 FCC verification	25
2.14 Environmental protection	26
2.15 Corrosive environment	26
3.0 Configuring and mounting the drive	27
3.1 Handling and static discharge precautions	27
3.2 Breather filter hole precautions	28
3.3 Jumper settings	29
3.3.1 Master/slave configuration	29
3.3.2 Cable-select option	29
3.3.3 Alternate capacity jumper	29
3.3.4 Ultra ATA/100 cable	30
3.4 Drive mounting	30
4.0 ATA interface	33
4.1 ATA interface signals and connector pins	33
4.1.1 Supported ATA commands	34
4.1.2 Identify Device command	36
4.1.3 Set Features command	39
4.1.4 S.M.A.R.T. commands	39
5.0 Seagate Technology support services	41
Index	43
A	43
B	43
C	43
D	43
E	43
F	43
G	43
H	43
I	43
J	44
K	44
L	44
M	44
N	44
O	44
P	44
R	44
S	44
T	45
U	45
V	45