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Seagate STM3320820A DiamondMax 21 PATA Product Manual - Page 24

Note., Table 5, Fluid Dynamic Bearing FDB motor acoustics

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2.10 Acoustics Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward. Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation: (Number of seeks per second = 0.4 / (average latency + average access time) Table 5: Fluid Dynamic Bearing (FDB) motor acoustics Acoustic mode STM3320820A STM3300620A STM3250620A STM3250820A STM3200820A STM3160215A STM380215A Idle* 2.7 Bels (typ) 3.0 Bels (max) 2.5 Bels (typ) 2.8 Bels (max) 2.8 Bels (typ) 3.0 Bels (max) Quiet seek 3.0 Bels (typ) 3.4 Bels (max) 3.0 Bels (typ) 3.1 Bels (max) 3.0 Bels (typ) 3.2 Bels (max) *During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels. 18 DiamondMax 21 PATA Product Manual, Rev. B

Section	Page
1.0 Introduction	7
2.0 Drive specifications	9
2.1 Specification summary tables	9
2.2 Formatted capacity	16
2.2.1 LBA mode	16
2.3 Default logical geometry	16
2.4 Recording and interface technology	17
2.5 Physical characteristics	17
2.6 Seek time	18
2.7 Start/stop times	18
2.8 Power specifications	19
2.8.1 Power consumption	19
2.8.1.1 Typical current profile	20
2.8.2 Conducted noise	20
2.8.3 Voltage tolerance	20
2.8.4 Power-management modes	21
2.9 Environmental specifications	22
2.9.1 Ambient temperature	22
2.9.2 Temperature gradient	22
2.9.3 Humidity	22
2.9.3.1 Relative humidity	22
2.9.3.2 Wet bulb temperature	22
2.9.4 Altitude	22
2.9.5 Shock	23
2.9.5.1 Operating shock	23
2.9.5.2 Nonoperating shock	23
2.9.6 Vibration	23
2.9.6.1 Operating vibration	23
2.9.6.2 Nonoperating vibration	23
2.10 Acoustics	24
2.11 Electromagnetic immunity	25
2.12 Reliability	26
2.12.1 Annualized Failure Rate (AFR and Mean Time Between Failures (MTBF)	26
2.13 Agency certification	26
2.13.1 Safety certification	26
2.13.2 Electromagnetic compatibility	26
2.13.3 FCC verification	27
2.14 Environmental protection	28
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive	28
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive	28
2.15 Corrosive environment	28
3.0 Configuring and mounting the drive	29
3.1 Handling and static discharge precautions	29
3.2 Breather filter hole precautions	30
3.3 Jumper settings	31
3.3.1 Master/slave configuration	31
3.3.2 Cable-select option	31
3.3.3 Ultra ATA/100 cable	32
3.4 Drive mounting	32
4.0 ATA interface	35
4.1 ATA interface signals and connector pins	35
4.1.1 Supported ATA commands	36
4.1.2 Identify Device command	38
4.1.3 Set Features command	41
4.1.4 S.M.A.R.T. commands	42
5.0 Maxtor support services	43
Index	45
A	45
B	45
C	45
D	45
E	45
F	45
G	45
H	45
I	45
J	46
K	46
L	46
M	46
N	46
O	46
P	46
R	46
S	46
T	47
U	47
V	47