Hitachi HTS541616J9AT00 - Travelstar 160 GB Hard... User manual

Travelstar 5K160 (PATA) Hard Disk Drive Specification
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Hitachi Global Storage Technologies
Hard Disk Drive Specification
Hitachi Travelstar 5K160
2.5 inch ATA/IDE hard disk drive
Models HTS541616J9AT00
HTS541612J9AT00
HTS541680J9AT00
HTS541660J9AT00
HTS541640J9AT00
Revision 1.1 15 May 2006

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1st Edition (Revision 1.0) (25 April 2006)
2
nd
Edition (Revision 1.1) (15 May 2006)
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©Copyright Hitachi Global Storage Technologies
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Table of Contents
GENERAL ........................................................................................................................................................................9
1 INTRODUCTION...................................................................................................................................................... 9
1.1 Abbreviations ............................................................................................................................................... 9
1.2 References..................................................................................................................................................11
1.3 General caution ..........................................................................................................................................11
1.4 Drive handling precautions........................................................................................................................11
2 OUTLINE OF THE DRIVE....................................................................................................................................... 12
PART 1 FUNCTIONAL SPECIFICATION...............................................................................................................13
3 FIXED DISK SUBSYSTEM DESCRIPTION................................................................................................................14
3.1 Control Electronics.....................................................................................................................................14
3.2 Head disk assembly data............................................................................................................................14
4 FIXED DISK CHARACTERISTICS............................................................................................................................15
4.1 Formatted capacity by model number .......................................................................................................15
4.2 Data sheet ...................................................................................................................................................15
4.3 Cylinder allocation.....................................................................................................................................16
4.4 Performance characteristics .......................................................................................................................17
5 DATA INTEGRITY.................................................................................................................................................21
5.1 Data loss on power off...............................................................................................................................21
5.2 Write Cache................................................................................................................................................21
5.3 Equipment status........................................................................................................................................21
5.4 WRITE safety.............................................................................................................................................22
5.5 Data buffer test...........................................................................................................................................22
5.6 Error recovery ............................................................................................................................................22
5.7 Automatic reallocation...............................................................................................................................22
5.8 ECC ............................................................................................................................................................23
6 SPECIFICATION....................................................................................................................................................24
6.1 Environment...............................................................................................................................................24
6.2 DC power requirements .............................................................................................................................26
6.3 Reliability...................................................................................................................................................27
6.4 Mechanical specifications..........................................................................................................................30
6.5 Vibration and shock ...................................................................................................................................32
6.6 Acoustics ....................................................................................................................................................34
6.7 Identification labels....................................................................................................................................35
6.8 Electromagnetic compatibility...................................................................................................................35
6.9 Safety..........................................................................................................................................................36
6.10 Packaging ...................................................................................................................................................36
6.11 Substance restriction requirements............................................................................................................36
7 ELECTRICAL INTERFACE SPECIFICATIONS...........................................................................................................37
7.1 Cabling .......................................................................................................................................................37
7.2 Interface connector.....................................................................................................................................37
7.3 Signal definitions .......................................................................................................................................38
7.4 Signal descriptions .....................................................................................................................................39
7.5 Interface logic signal levels .......................................................................................................................42
7.6 Reset timings..............................................................................................................................................42
7.7 PIO timings.................................................................................................................................................43
7.8 Multiword DMA timings...........................................................................................................................44
7.9 Ultra DMA timings....................................................................................................................................45
7.10 Drive address setting..................................................................................................................................53
7.11 Addressing of HDD registers.....................................................................................................................54
PART 2 INTERFACE SPECIFICATION..................................................................................................................55
8 GENERAL.............................................................................................................................................................56
8.1 Introduction................................................................................................................................................56
8.2 Terminology...............................................................................................................................................56

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9 DEVIATIONS FROM STANDARD ...........................................................................................................................57
10 PHYSICAL INTERFACE..................................................................................................................................... 57
11 REGISTERS ......................................................................................................................................................58
11.1 Alternate Status Register............................................................................................................................58
11.2 Command register......................................................................................................................................58
11.3 Data Register..............................................................................................................................................59
11.4 Device Control Register.............................................................................................................................59
11.5 Drive Address Register..............................................................................................................................59
11.6 Device Register ..........................................................................................................................................59
11.7 Error Register.............................................................................................................................................60
11.8 Features Register........................................................................................................................................60
11.9 LBA High Register ....................................................................................................................................60
11.10 LBA Low Register.................................................................................................................................60
11.11 LBA Mid Register..................................................................................................................................60
11.12 Sector Count Register ............................................................................................................................61
11.13 Status Register........................................................................................................................................61
12 GENERAL OPERATION DESCRIPTIONS ............................................................................................................62
12.1 Reset Response...........................................................................................................................................62
12.2 Diagnostic and Reset considerations .........................................................................................................64
12.3 Power-off considerations ...........................................................................................................................65
12.4 Sector Addressing Mode............................................................................................................................66
12.5 Power Management Feature ......................................................................................................................67
12.6 Advanced Power Management (Adaptive Battery Life Extender 3) Feature...........................................69
12.7 S.M.A.R.T. Function..................................................................................................................................70
12.8 Security Mode Feature Set.........................................................................................................................71
12.9 Protected Area Function.............................................................................................................................77
12.10 Address Offset Feature (Vendor Specific)............................................................................................79
12.11 Seek Overlap..........................................................................................................................................80
12.12 Write Cache Function ............................................................................................................................80
12.13 Reassign Function..................................................................................................................................81
12.14 48-bit Address Feature Set.....................................................................................................................82
13 COMMAND PROTOCOL....................................................................................................................................83
13.1 Data In Commands.....................................................................................................................................83
13.2 Data Out Commands..................................................................................................................................85
13.3 Non-Data Commands.................................................................................................................................87
13.4 DMA Data Transfer Commands................................................................................................................89
14 COMMAND DESCRIPTIONS ..............................................................................................................................90
14.1 Check Power Mode (E5h/98h) ..................................................................................................................94
14.2 Device Configuration Overlay (B1h) ........................................................................................................95
14.3 Execute Device Diagnostic (90h) ..............................................................................................................98
14.4 Flush Cache (E7h)......................................................................................................................................99
14.5 Flush Cache EXT (EAh)..........................................................................................................................100
14.6 Format Track (50h: Vendor Specific)......................................................................................................101
14.7 Format Unit (F7h: Vendor Specific)........................................................................................................102
14.8 Identify Device (ECh)..............................................................................................................................103
14.9 Idle (E3h/97h) ..........................................................................................................................................113
14.10 Idle Immediate (E1h/95h)....................................................................................................................114
14.11 Initialize Device Parameters (91h)......................................................................................................115
14.12 Read Buffer (E4h)................................................................................................................................116
14.13 Read DMA(C8h/C9h)..........................................................................................................................117
14.14 Read DMA EXT (25h).........................................................................................................................118
14.15 Read Log Ext(2Fh)...............................................................................................................................119
14.16 Read Long (22h/23h)...........................................................................................................................124
14.17 Read Multiple (C4h) ............................................................................................................................125
14.18 Read Multiple EXT (29h)....................................................................................................................126
14.19 Read Native Max ADDRESS (F8h)....................................................................................................127
14.20 Read Native Max ADDRESS EXT (27h) ...........................................................................................128
14.21 Read Sector(s) (20h/21h).....................................................................................................................129
14.22 Read Sector(s) EXT (24h) ...................................................................................................................130
14.23 Read Verify Sector(s) (40h/41h) .........................................................................................................131
14.24 Read Verify Sector(s) EXT (42h)........................................................................................................132
14.25 Recalibrate (1xh)..................................................................................................................................133

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14.26 Security Disable Password (F6h).........................................................................................................134
14.27 Security Erase Prepare (F3h)...............................................................................................................135
14.28 Security Erase Unit (F4h) ....................................................................................................................136
14.29 Security Freeze Lock (F5h) .................................................................................................................138
14.30 Security Set Password (F1h)................................................................................................................139
14.31 Security Unlock (F2h)..........................................................................................................................141
14.32 Seek (7xh) ............................................................................................................................................142
14.33 Sense Condition (F0h : vendor specific) .............................................................................................143
14.34 Set Features (EFh)................................................................................................................................144
14.35 Set Max ADDRESS (F9h)...................................................................................................................146
14.36 Set Max ADDRESS EXT (37h)..........................................................................................................148
14.37 Set Multiple (C6h) ...............................................................................................................................150
14.38 Sleep (E6h/99h)....................................................................................................................................151
14.39 S.M.A.R.T Function Set (B0h)............................................................................................................152
14.40 Standby (E2h/96h) ...............................................................................................................................165
14.41 Standby Immediate (E0h/94h).............................................................................................................166
14.42 Write Buffer (E8h)...............................................................................................................................167
14.43 Write DMA (Cah/CBh)........................................................................................................................168
14.44 Write DMA EXT (35h)........................................................................................................................169
14.45 Write DMA FUA EXT (3Dh).............................................................................................................. 170
14.46 Write Log Ext (3Fh).............................................................................................................................171
14.47 Write Long (32h/33h) ..........................................................................................................................172
14.48 Write Multiple (C5h) ...........................................................................................................................173
14.49 Write Multiple EXT (39h)...................................................................................................................174
14.50 Write Multiple FUA EXT (CEh).........................................................................................................175
14.51 Write Sector(s) (30h/31h) ....................................................................................................................176
14.52 Write Sector(s) EXT (34h)...................................................................................................................177
14.53 Write Verify (3Ch: Vendor Specific)..................................................................................................178
15 TIMINGS ........................................................................................................................................................179
16 APPENDIX......................................................................................................................................................180
16.1 Commands Support Coverage .................................................................................................................180
16.2 SET FEATURES Command Support Coverage.....................................................................................182
16.3 Changed Points from HTS4212xxH9AT00 ............................................................................................182

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List of Figures
Figure 1. Limits of temperature and humidity.......................................................................................................24
Figure 2. Mounting hole locations.........................................................................................................................30
Figure 3. Interface connector pin assignments......................................................................................................37
Figure 4. System reset timings...............................................................................................................................42
Figure 5. PIO cycle timings ...................................................................................................................................43
Figure 6. Multiword DMA cycle timings..............................................................................................................44
Figure 7. Ultra DMA cycle timings (Initiating Read)...........................................................................................45
Figure 8. Ultra DMA cycle timings (Host Pausing Read) ....................................................................................46
Figure 9. Ultra DMA cycle timings (Host Terminating Read) .............................................................................47
Figure 10. Ultra DMA cycle timings (Device Terminating Read) .......................................................................48
Figure 11. Ultra DMA cycle timings (Initiating Write)........................................................................................49
Figure 12. Ultra DMA cycle timings (Device Pausing Write).............................................................................. 50
Figure 13. Ultra DMA cycle timings (Device Terminating Write) ......................................................................51
Figure 14. Ultra DMA cycle timings (Host Terminating Write) .......................................................................... 52
Figure 15. Drive address setting ............................................................................................................................53
Figure 16 Register Set............................................................................................................................................58
Figure 17 Alternate Status Register.......................................................................................................................58
Figure 18 Device Control Register........................................................................................................................59
Figure 19 Drive Address Register..........................................................................................................................59
Figure 20 Device Register......................................................................................................................................59
Figure 21 Error Register.........................................................................................................................................60
Figure 22 Status Register .......................................................................................................................................61
Figure 23 Reset Response Table............................................................................................................................62
Figure 24 Default Register Values.........................................................................................................................63
Figure 25 Diagnostic Codes...................................................................................................................................63
Figure 26 Reset error register values.....................................................................................................................64
Figure 27 Device’s behavior by ATA commands.................................................................................................65
Figure 28 Power conditions ...................................................................................................................................68
Figure 29 Initial Setting..........................................................................................................................................72
Figure 30 Usual Operation.....................................................................................................................................73
Figure 31 Password Lost........................................................................................................................................74
Figure 32 Command table for device lock operation............................................................................................75
Figure 33 Command table for device lock operation - continued.........................................................................76
Figure 34 Set Max SET PASSWORD data content..............................................................................................78
Figure 35 Set Max security mode transition..........................................................................................................78
Figure 36 Device address map before and after Set Feature.................................................................................79
Figure 37 Seek overlap...........................................................................................................................................80
Figure 38 Command set .........................................................................................................................................90
Figure 39 Command Set - continued.....................................................................................................................91
Figure 40 Command Set (Subcommand)...............................................................................................................92
Figure 41 Check Power Mode Command (E5h/98h)............................................................................................94
Figure 42 Device Configuration Overlay Command (B1h)..................................................................................95
Figure 43 Device Configuration Overlay Features register values.......................................................................95
Figure 44 Device Configuration Overlay Data structure ......................................................................................97
Figure 45 DCO error information definition .........................................................................................................97
Figure 46 Execute Device Diagnostic Command (90h)........................................................................................98
Figure 47 Flush Cache Command (E7h) ...............................................................................................................99
Figure 48 Flush Cache EXT Command (EAh) ...................................................................................................100
Figure 49 Format Track (50h)..............................................................................................................................101
Figure 50 Format Unit Command (F7h)..............................................................................................................102
Figure 51 Identify Device Command (ECh) .......................................................................................................103
Figure 52 Identify device information.................................................................................................................104
Figure 53 Identify device information --- Continued ---.....................................................................................105
Figure 54 Identify device information --- Continued ---.....................................................................................106
Figure 55 Identify device information --- Continued ---.....................................................................................107
Figure 56 Identify device information --- Continued ---.....................................................................................108
Figure 57 Identify device information --- Continued ---.....................................................................................109
Figure 58 Identify device information --- Continued ---.....................................................................................110
Figure 59 Identify device information --- Continued ---.....................................................................................111

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Figure 60 Number of cylinders/heads/sectors by models for HTS5416XXJ9AT00..........................................112
Figure 61 Idle Command (E3h/97h)....................................................................................................................113
Figure 62 Idle Immediate Command (E1h/95h)..................................................................................................114
Figure 63 Initialize Device Parameters Command (91h)....................................................................................115
Figure 64 Read Buffer Command (E4h)..............................................................................................................116
Figure 65 Read DMA Command (C8h/C9h).......................................................................................................117
Figure 66 Read DMA EXT (25h)........................................................................................................................118
Figure 67 Read Log Ext command (2Fh)............................................................................................................119
Figure 68 Log address definition.........................................................................................................................119
Figure 69 General purpose Log Directory...........................................................................................................120
Figure 70 Extended comprehensive SMART error Log ..................................................................................... 120
Figure 71 Extended Error log data structure........................................................................................................121
Figure 72 Command data structure......................................................................................................................121
Figure 73 Error data structure..............................................................................................................................122
Figure 74 Extended Self-test log data structure...................................................................................................123
Figure 75 Extended Self-test log descriptor entry...............................................................................................123
Figure 76 Read Long Command (22h/23h).........................................................................................................124
Figure 77 Read Multiple Command (C4h)..........................................................................................................125
Figure 78 Read Multiple EXT (29h)....................................................................................................................126
Figure 79 Read Native Max ADDRESS (F8h)....................................................................................................127
Figure 80 Read Native Max ADDRESS EXT (29h)...........................................................................................128
Figure 81 Read Sector(s) Command (20h/21h)...................................................................................................129
Figure 82 Read Sector(s) EXT Command (24h).................................................................................................130
Figure 83 Read Verify Sector(s) Command (40h/41h).......................................................................................131
Figure 84 Read Verify Sector(s) EXT Command (42h).....................................................................................132
Figure 85 Recalibrate Command (1xh) ...............................................................................................................133
Figure 86 Security Disable Password Command (F6h)......................................................................................134
Figure 87 Password Information for Security Disable Password command ......................................................134
Figure 88 Security Erase Prepare Command (F3h).............................................................................................135
Figure 89 Security Erase Unit Command (F4h)..................................................................................................136
Figure 90 Erase Unit Information........................................................................................................................136
Figure 91 Security Freeze Lock Command (F5h)...............................................................................................138
Figure 92 Security Set Password Command (F1h) .............................................................................................139
Figure 93 Security Set Password Information.....................................................................................................139
Figure 94 Security Unlock Command (F2h) .......................................................................................................141
Figure 95 Security Unlock Information...............................................................................................................141
Figure 96 Seek Command (7xh)..........................................................................................................................142
Figure 97 Sense Condition Command (F0h).......................................................................................................143
Figure 98 Set Features Command (EFh) .............................................................................................................144
Figure 99 Set Max ADDRESS (F9h) ..................................................................................................................146
Figure 100 Set Max ADDRESS EXT Command (37h)......................................................................................148
Figure 101 Set Multiple Command (C6h)...........................................................................................................150
Figure 102 Sleep Command (E6h/99h)...............................................................................................................151
Figure 103 S.M.A.R.T. Function Set Command (B0h).......................................................................................152
Figure 104 Selective self-test test span example.................................................................................................154
Figure 105 Log sector addresses..........................................................................................................................155
Figure 106 Device Attribute Data Structure........................................................................................................156
Figure 107 Individual Attribute Data Structure...................................................................................................157
Figure 108 Status Flag Definitions ......................................................................................................................158
Figure 109 Device Attribute Thresholds Data Structure.....................................................................................160
Figure 110 Individual Threshold Data Structure.................................................................................................160
Figure 111 SMART Log Directory......................................................................................................................161
Figure 112 S.M.A.R.T. error log sector...............................................................................................................161
Figure 113 Error log data structure......................................................................................................................162
Figure 114 Command data structure....................................................................................................................162
Figure 115 Error data structure............................................................................................................................162
Figure 116 Self-test log data structure.................................................................................................................163
Figure 117 Selective self-test log data structure..................................................................................................163
Figure 118 S.M.A.R.T. Error Codes....................................................................................................................164
Figure 119 Standby Command (E2h/96h)...........................................................................................................165
Figure 120 Standby Immediate Command (E0h/94h).........................................................................................166
Figure 121 Write Buffer Command (E8h)...........................................................................................................167

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Figure 122 Write DMA Command (CAh/CBh)..................................................................................................168
Figure 123 Write DMA EXT Command (35h) ...................................................................................................169
Figure 124 Write DMA FUA EXT Command (3Dh)......................................................................................... 170
Figure 125 Write Log Ext command...................................................................................................................171
Figure 126 Write Long Command (32h/33h)......................................................................................................172
Figure 127 Write Multiple Command (C5h).......................................................................................................173
Figure 128 Write Multiple EXT Command (39h)...............................................................................................174
Figure 129 Write Multiple FUA EXT Command (CEh) ....................................................................................175
Figure 130 Write Sector(s) Command (30h/31h)................................................................................................176
Figure 131 Write Sector(s) EXT Command (34h)..............................................................................................177
Figure 132 Timeout Values..................................................................................................................................179
Figure 133 Command coverage --- continued ---................................................................................................180
Figure 134 Command coverage...........................................................................................................................181
Figure 135 SET FEATURES Command coverage ............................................................................................. 182
List of Tables
Table 1. Formatted capacity by model number..................................................................................................15
Table 2. Data sheet..............................................................................................................................................15
Table 3. Cylinder allocation...................................................................................................................................16
Table 4. Performance characteristics.....................................................................................................................17
Table 5. Mechanical positioning performance ......................................................................................................18
Table 6. Full stroke seek time................................................................................................................................18
Table 7. Single track seek time..............................................................................................................................18
Table 8. Latency time.............................................................................................................................................18
Table 9. Drive ready time.......................................................................................................................................19
Table 10. Drive ready time.....................................................................................................................................20
Table 11. Environmental condition........................................................................................................................24
Table 12. Magnetic flux density limits..................................................................................................................25
Table 13. DC Power requirements.........................................................................................................................26
Table 14. Power consumption efficiency ..............................................................................................................26
Table 15. Physical dimensions and weight............................................................................................................30
Table 16. Random vibration PSD profile breakpoints (operating)....................................................................... 32
Table 17. Swept sine vibration...............................................................................................................................32
Table 18. Random Vibration PSD Profile Breakpoints (nonoperating) ...............................................................32
Table 19. Operating shock .....................................................................................................................................33
Table 20. Nonoperating shock ...............................................................................................................................33
Table 21. Weighted sound power ..........................................................................................................................34
Table 22. Signal definition.....................................................................................................................................38
Table 23. Special signal definitions for Ultra DMA .............................................................................................38
Table 24. I/O address map .....................................................................................................................................54

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General
1 Introduction
This document describes the specifications of the Hitachi Travelstar 5K160, a 2.5-inch hard disk drive with
ATA/IDE interface:
Drive name Model Number Capacity (GB) Height (mm) Rotation speed (rpm)
Travelstar 5K160-160 HTS541616J9AT00 160 9.5 5400
Travelstar 5K160-120 HTS541612J9AT00 120 9.5 5400
Travelstar 5K160-80 HTS541680J9AT00 80 9.5 5400
Travelstar 5K160-60 HTS541660J9AT00 60 9.5 5400
Travelstar 5K160-40 HTS541640J9AT00 40 9.5 5400
Part 1 of this document beginning on page 7 defines the hardware functional specification. Interface specification is
separately issued.
1.1 Abbreviations
Abbreviation Meaning
32 KB 32 x 1024 bytes
64 KB 64 x 1024 bytes
" inch
A amp
AC alternating current
AT Advanced Technology
ATA Advanced Technology Attachment
Bels unit of sound power
BIOS Basic Input/Output System
°C degrees Celsius
CSA Canadian Standards Association
C-UL Canadian-Underwriters Laboratory
Cyl cylinder
DC direct current
DFT Drive Fitness Test
DMA Direct Memory Access
ECC error correction code
EEC European Economic Community
EMC electromagnetic compatibility
ERP Error Recovery Procedure
esd electrostatic discharge
FCC Federal Communications Commission
FRU field replacement unit
G gravity, a unit of force
Gb 1 000 000 000 bits
GB 1 000 000 000 bytes
GND ground
h hexadecimal
HDD hard disk drive
Hz hertz
I Input
ILS integrated lead suspension
imped impedance
I/O Input/Output
ISO International Standards Organization
KB 1,000 bytes
Kbit/mm 1,000 bits per mm

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Kbit/sq-mm 1000 bits per square mm
KHz kilohertz
LBA logical block addressing
Lw unit of A-weighted sound power
m meter
max. or Max. maximum
MB 1,000,000 bytes
Mbps 1,000,000 Bit per second
Mb/sec 1,000,000 Bit per second
MB/sec 1,000,000 bytes per second
MHz megahertz
MLC Machine Level Control
mm millimeter
ms millisecond
us, µs microsecond
Nm Newton meter
No. or # number
oct/min oscillations per minute
O Output
OD Open Drain Programmed Input/Output
PIO
POH power on hours
Pop. population
P/N part number
p-p peak-to-peak
PSD power spectral density
RES radiated electromagnetic susceptibility
RFI radio frequency interference
RH relative humidity
% RH per cent relative humidity
RMS root mean square
RPM revolutions per minute
RST reset
R/W read/write
sec second
Sect/Trk sectors per track
SELV secondary low voltage
S.M.A.R.T Self-monitoring, analysis, and reporting technology
Trk. track
TTL transistor-transistor logic
UL Underwriters Laboratory
V volt
VDE Verband Deutscher Electrotechniker
W watt
3-state transistor-transistor tristate logic

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1.2 References
ATA/ATAPI-7 (T13/1532D Revision 4b)
1.3 General caution
 Do not apply force to the top cover (See figure below).
 Do not cover the breathing hole on the top cover (See figure below).
 Do not touch the interface connector pins or the surface of the printed circuit board.
 The drive can be damaged by shock or ESD (Electric Static Discharge). Any damages incurred to the
drive after removing it from the shipping package and the ESD protective bag are the responsibility of
the user
1.4 Drive handling precautions
Do not press on the drive cover during handling.

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2 Outline of the drive
 2.5-inch, 9.5-mm Height
 Perpendicular Recording
 Formatted capacities of 160GB,120GB, 80GB, 60GB and 40GB
 512 bytes/sector
 AT Interface (Enhanced IDE) conforming to ATA/ATAPI-7
 Integrated controller
 No-ID recording format
 Coding : 100/106
 Multi zone recording
 Enhanced ECC
 10 bit 40 symbol non Interleaved Read Solomon code
 Non interleave On-The –Fly correction
 Included 2 symbol system ECC
 Segmented Buffer with write cache
 8192 KB - Upper 445 KB is used for firmware
 Fast data transfer rate (up to 100 MB/s)
 Media data transfer rate (max):
 540 Mb/s
 Average seek time: 11 ms for read
 Closed-loop actuator servo (Embedded Sector Servo)
 Rotary voice coil motor actuator
 Load/Unload mechanism
 Mechanical latch
 0.60 Watts at idle state
 Power on to ready
 3.5 sec
 Operating shock
 3185 m/ sec2 (325 G)/2ms
 1568 m/ sec2 (160G)/1ms
 Nonoperating shock
 9800 m/ sec2 (1000 G)/1ms

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Part 1 Functional Specification

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3 Fixed disk subsystem description
3.1 Control Electronics
The control electronics works with the following functions:
 AT Interface Protocol
 Embedded Sector Servo
 No-ID (TM) formatting
 Multizone recording
 Code: 100/106
 System ECC
 Enhanced Adaptive Battery Life Extender
3.2 Head disk assembly data
The following technologies are used in the drive:
 Femto Slider
 Perpendicular recording disk and write head
 GMR read head
 Integrated lead suspension (ILS)
 Load/unload mechanism
 Mechanical latch

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4 Drive characteristics
4.1 Formatted capacity by model number
Description HTS541616J9AT00 HTS541612J9AT00
Physical Layout
Bytes per Sector 512 512
Sectors per Track 480-1272 480-1272
Number of Heads 4 4
Number of Disks 2 2
Logical Layout
Number of Heads 16 16
Number of Sectors/ Track 63 63
Number of Cylinders 16,383 16,383
Number of Sectors 312,581,808 234,441,648
Total Logical Data Bytes 160,041,885,696 120,034,123,776
Description HTS541680J9AT00 HTS541660J9AT00 HTS541640J9AT00
Physical Layout
Bytes per Sector 512 512 512
Sectors per Track 480-1272 480-1272 480-1272
Number of Heads 2 2 1
Number of Disks 1 1 1
Logical Layout
Number of Heads 16 16 16
Number of Sectors/ Track 63 63 63
Number of Cylinders 16,383 16,383 16,383
Number of Sectors 156,301,488 117,210,240 78,140,160
Total Logical Data Bytes 80,026,361,856 60,011,642,880 40,007,761,920
Table 1. Formatted capacity by model number.
4.2 Data sheet
Model 160GB 120GB 80GB 60GB 40GB
Rotational Speed (RPM) 5400 5400 5400 5400 5400
Data transfer rates (Max)
(buffer to/from media) (Mbps) 540 466 540 466 540
Data transfer rates (Mbyte/sec)
ULTRA DMA 100 100 100 100 100 100
Recording density (Kbit/mm) (Max)
(KBPI) (Max)
35.5
902 30.2 769 35.5 902 30.2 769 35.5 902
Track density (ktrack/mm)
(KTPI)
5.7
146 5.0 128 5.7 146 5.0 128 5.7 146
Areal density (Kbit/sq-mm.- Max)
(Gbit/sq-inch - Max) 203.8 131.5 152.7 98.5 203.8 131.5 152.7 98.5 203.8 131.5
Number of zones 24 24 24 24 24
Table 2. Data sheet

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4.3 Cylinder allocation
Data format is allocated by each head characteristics. Typical format is described below.
80GB/p format
Zone Cylinder No. of Sectors/Trk
0
0
-
6067 1116
1
6068
-
9101 1104
2
9102
-
13245 1080
3
13246
-
17389 1056
4
17390
-
21163 1032
5
21164
-
26713 1008
6
26714
-
29747 984
7
29748
-
33891 960
8
33892
-
38035 936
9
38036
-
42179 912
10
42180
-
45583 888
11
45584
-
49727 864
12
49728
-
54537 828
13
54538
-
57201 816
14
57202
-
60605 792
15
60606
-
64675 768
16
64676 68079 744
17
68080 72593 720
18
72594 74887 696
19
74888 78661 672
20
78662 82435 648
21
82436 85099 624
22
85100 87763 600
23
87764 90575 576
Table 3. Cylinder allocation

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4.4 Performance characteristics
Drive performance is characterized by the following parameters:
 Command Overhead
 Mechanical Positioning
 Seek Time
 Latency
 Data Transfer Speed
 Buffering Operation (Look ahead/Write Cache)
Note: All the above parameters contribute to drive performance. There are other parameters which
contribute to the performance of the actual system. This specification defines the essential
characteristics of the drive. This specification does not include the system throughput as this is
dependent upon the system and the application.
The following table gives a typical value for each parameter. The detailed descriptions are found in following
sections.
Function
Average Random Seek Time - Read (ms) 11
Average Random Seek Time - Write (ms) 13
Rotational Speed (RPM) 5400
Power-on-to-ready (sec) 3.5
Command overhead (ms) 1.0
Disk-buffer data transfer (Mb/s) 540 max
Buffer-host data transfer (MB/s) 100
Table 4. Performance characteristics
4.4.1 Command overhead
Command overhead time is defined as the interval from the time that a drive receives a command to the time that the
actuator starts its motion.

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Mechanical positioning
4.4.1.1 Average seek time (including settling)
Command Type Typical (ms) Max. (ms)
Read 11 14
Write 13 15
Table 5. Mechanical positioning performance
Typical and Max. are defined throughout the performance specification as follows:
Typical Average of the drive population tested at nominal environmental and voltage conditions.
Max. Maximum value measured on any one drive over the full range of the environmental and
voltage conditions. (See section 6.1 “Environment” and 6.2 “DC power requirements” on
page 24)
The seek time is measured from the start of motion of the actuator to the start of a reliable read or write operation. A
reliable read or write operation implies that error correction/recovery is not employed to correct arrival problems.
The Average Seek Time is measured as the weighted average of all possible seek combinations.
)(max)1(max
))(1(max
max
1
+
+−+
=
∑
=nTnoutTninn
AverageWeighted
Where: max. = maximum seek length
n = seek length (1-to-max.)
Tnin
= inward measured seek time for an n-track seek
Tnout = outward measured seek time for an n-track seek
4.4.1.2 Full stroke seek
Command Type Typical (ms) Max. (ms)
Read 20.0 25.0
Write 21.0 26.0
Table 6. Full stroke seek time
Full stroke seek time in milliseconds is the average time of 1000 full stroke seeks.
4.4.1.3 Single track seek time (without command overhead, including settling)
Command Type Typical (ms) Maximum (ms)
Read 1.0 2.0
Write 1.1 2.2
Table 7. Single track seek time
Single track seek is measured as the average of one (1) single track seek from every track in both directions (inward
and outward).
4.4.1.4 Average latency
Rotational Speed (RPM) Time for one revolution (ms) Average Latency
(ms)
5400 11.1 5.5
Table 8. Latency time

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4.4.1.5 Drive ready time
Condition Typical (sec) Max. (sec)
Power On To Ready 3.5 9.5
Table 9. Drive ready time
Ready The condition in which the drive is able to perform a media access command
(for example—read, write) immediately.
Power On To Ready This includes the time required for the internal self diagnostics.

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4.4.2 Operating modes
4.4.2.1 Description of operating modes
Operating mode Description
Spin-Up Start up time period from spindle stop or power down.
Seek Seek operation mode
Write Write operation mode
Read Read operation mode
Performance The device is capable of responding immediately to idle media access
requests. All electronic components remain powered and the full frequency
servo remains operational.
Active idle
The device is capable of responding immediately to media access requests.
Some circuitry—including servo system and R/W electronics—is in power
saving mode. The head is parked near the mid-diameter the disk without
servoing.
A device in Active idle mode may take longer to complete the execution of a
command because it must activate that circuitry.
Low power idle The head is unloaded onto the ramp position. The spindle motor is rotating at
full speed.
Standby The device interface is capable of accepting commands. The spindle motor is stopped. All circuitry but the host interface is in power saving mode.
The execution of commands is delayed until the spindle becomes ready.
Sleep The device requires a soft reset or a hard reset to be activated. All electronics,
including spindle motor and host interface, are shut off.
4.4.2.2 Mode transition time
From To Transition Time (typ) Transition Time (max.)
Standby Idle 2.5 9.5
Table 10. Drive ready time
4.4.2.3 Operating mode at power on
The device goes into Idle mode after power on or hard reset as an initial state. Initial state may be changed to
Standby mode using pin C on the interface connector. Refer to section 7.10 on page 53, "Drive address setting" for
details.
4.4.2.4 Adaptive power save control
The transient timing from Performance Idle mode to Active Idle mode and Active Idle mode to Low Power Idle
mode is controlled adaptively according to the access pattern of the host system. The transient timing from Low
Power Idle mode to Standby mode is also controlled adaptively, if it is allowed by Set Features Enable Advanced
Power Management subcommand.