Hitachi HTS421212H9AT00 - Travelstar 120 GB Hard... User manual

Hitachi Global Storage Technologies
Hard Disk Drive Specification
Hitachi Travelstar 4K120
2.5 inch ATA/IDE hard disk drive
Models: HTS421212H9AT00
HTS421210H9AT00
HTS421280H9AT00
HTS421260H9AT00
HTS421240H9AT00
Revision 1.2 12 July 2006

Hitachi Global Storage Technologies
Hard Disk Drive Specification
Hitachi Travelstar 4K120
2.5 inch ATA/IDE hard disk drive
Models: HTS421212H9AT00
HTS421210H9AT00
HTS421280H9AT00
HTS421260H9AT00
HTS421240H9AT00
Revision 1.2 12 July 2006

1st Edition (Revision 0.1) (27 May 2005) Revised
2nd Edition (Revision 0.2)(07 June 2005) Revised
3rd Edition (Revision 0.3) (09 June 2005) Revised
4th Edition (Revision 1.0)(11 July 2005) Revised
5th Edition (Revision 1.1)(8 December 2005) Revised
6th Edition (Revision 1.2)(12 July 2006) Revised
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Table of Contents
1.0. General.................................................................................................................................... 1
1.1. Introduction....................................................................................................................... 1
1.2. References......................................................................................................................... 1
1.3. Abbreviations.................................................................................................................... 1
1.4. Caution.............................................................................................................................. 3
1.5. Drive handling precautions............................................................................................... 4
2.0. Outline of the drive................................................................................................................ 5
3.0. Fixed-disk subsystem description......................................................................................... 9
3.1. Control electronics............................................................................................................ 9
3.2. Head disk assembly data................................................................................................... 9
4.0. Drive characteristics............................................................................................................ 11
4.1. Formatted capacity.......................................................................................................... 11
4.2. Data sheet........................................................................................................................ 11
4.3. Cylinder allocation.......................................................................................................... 12
4.4. Performance characteristics............................................................................................ 17
4.4.1 Command overhead ...............................................................................................17
4.4.2 Mechanical positioning .........................................................................................17
4.4.3 Operating modes ....................................................................................................19
5.0. Data integrity........................................................................................................................ 21
5.1. Data loss at 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
5.7.1 Nonrecovered write errors .....................................................................................22
5.7.2 Nonrecoverable read error .....................................................................................22
5.7.3 Recovered read errors ............................................................................................22
5.8. ECC................................................................................................................................. 23
6.0. Specification ......................................................................................................................... 25
6.1. Environment ................................................................................................................... 25
6.1.1 Temperature and humidity ....................................................................................25
6.1.2 Radiation noise ......................................................................................................27
6.1.3 Conductive noise ...................................................................................................27
6.2. DC power requirements.................................................................................................. 27
6.2.1 Power consumption efficiency ..............................................................................28
6.3. Reliability ....................................................................................................................... 28
6.3.1 Data Reliability ......................................................................................................28
6.3.2 Failure prediction (S.M.A.R.T.) ............................................................................28
6.3.3 Cable noise interference ........................................................................................29

6.3.4 Service life and usage condition ............................................................................29
6.3.5 Preventive maintenance .........................................................................................29
6.3.6 Load/unload ...........................................................................................................29
6.4. Mechanical specifications............................................................................................... 31
6.4.1 Physical dimensions and weight ............................................................................31
6.4.2 Mounting hole locations ........................................................................................32
6.4.3 Connector and jumper description .........................................................................32
6.4.4 Mounting orientation .............................................................................................32
6.4.5 Load/unload mechanism ........................................................................................33
6.5. Vibration and shock........................................................................................................ 34
6.5.1 Operating vibration ................................................................................................34
6.5.2 Nonoperating vibration ..........................................................................................35
6.5.3 Operating shock .....................................................................................................35
6.5.4 Nonoperating shock ...............................................................................................35
6.6. Acoustics......................................................................................................................... 36
6.6.1 Sound power levels ................................................................................................36
6.6.2 Discrete tone penalty .............................................................................................37
6.7. Identification labels ........................................................................................................ 37
6.8. Electromagnetic compatibility........................................................................................ 37
6.8.1 CE mark .................................................................................................................37
6.8.2 C-TICK mark .........................................................................................................37
6.8.3 BSMI mark ............................................................................................................38
6.8.4 MIC mark ..............................................................................................................38
6.9. Safety.............................................................................................................................. 38
6.9.1 UL and CSA approval ...........................................................................................38
6.9.2 IEC compliance .....................................................................................................38
6.9.3 German safety mark ..............................................................................................38
6.9.4 Flammability ..........................................................................................................38
6.9.5 Secondary circuit protection ..................................................................................38
6.10. Packaging...................................................................................................................... 38
7.0. Electrical interface specification......................................................................................... 39
7.1. Cabling............................................................................................................................ 39
7.2. Interface connector ......................................................................................................... 39
7.3. Signal definitions............................................................................................................ 40
7.4. Signal descriptions.......................................................................................................... 41
7.5. Interface logic signal levels............................................................................................ 44
7.6. Reset timings .................................................................................................................. 44
7.7. PIO timings..................................................................................................................... 45
7.8. Multi word DMA timings............................................................................................... 46
7.9. Ultra DMA timings......................................................................................................... 47
7.9.1 Initiating Read DMA .............................................................................................47
7.9.2 Host Pausing Read DMA ......................................................................................48
7.9.3 Host Terminating Read DMA ...............................................................................49
7.9.4 Device Terminating Read DMA ...........................................................................50
7.9.5 Initiating Write DMA ............................................................................................51
7.9.6 Device Pausing Write DMA ..................................................................................52

7.9.7 Device Terminating Write DMA ...........................................................................53
7.9.8 Host Terminating Write DMA ..............................................................................54
7.10. Drive address setting..................................................................................................... 55
7.11. Addressing of HDD registers........................................................................................ 56
8.0. General.................................................................................................................................. 59
8.1. Introduction..................................................................................................................... 59
8.2. Terminology ................................................................................................................... 59
9.0. Deviations from standard.................................................................................................... 61
10.0. Register ............................................................................................................................... 63
10.1. Alternate Status Register .............................................................................................. 64
10.2. Command Register ....................................................................................................... 64
10.3. Data Register ................................................................................................................ 64
10.4. Device Control Register .............................................................................................. 65
10.5. Drive Address Register................................................................................................. 65
10.6. Device Register............................................................................................................ 66
10.7. Error Register................................................................................................................ 66
10.8. Features Register .......................................................................................................... 66
10.9. LBA High Register....................................................................................................... 67
10.10. LBA Low Register...................................................................................................... 67
10.11. LBA Mid Register ...................................................................................................... 67
10.12. Sector Count Register................................................................................................. 67
10.13. Status Register............................................................................................................ 67
11.0. General................................................................................................................................ 69
11.1. Reset response .............................................................................................................. 69
11.2. Register initialization.................................................................................................... 70
11.3. Diagnostic and Reset considerations............................................................................ 71
11.4. Power-off considerations.............................................................................................. 72
11.4.1 Load/Unload ........................................................................................................72
11.4.2 Emergency unload ...............................................................................................72
11.4.3 Required power-off sequence ..............................................................................72
11.5. Sector Addressing Mode............................................................................................... 73
11.5.1 Logical CHS addressing mode ............................................................................73
11.5.2 LBA addressing mode .........................................................................................73
11.6. Power management features......................................................................................... 74
11.6.1 Power mode .........................................................................................................74
11.6.2 Power management commands ...........................................................................74
11.6.3 Standby/Sleep command completion time ..........................................................74
11.6.4 Standby timer .......................................................................................................75
11.6.5 Status ...................................................................................................................75
11.6.6 Interface capability for power modes ..................................................................75
11.6.7 Initial Power Mode at Power On .........................................................................75
11.7. Advanced Power Management (ABLE-3) feature ....................................................... 75
11.7.1 Performance Idle Mode .......................................................................................76
11.7.2 Active Idle Mode .................................................................................................76
11.7.3 Low Power Idle Mode .........................................................................................76
11.7.4 Transition time .....................................................................................................76

11.8. S.M.A.R.T. Function .................................................................................................... 76
11.8.1 Attributes .............................................................................................................77
11.8.2 Attribute values ...................................................................................................77
11.8.3 Attribute thresholds .............................................................................................77
11.8.4 Threshold exceeded condition .............................................................................77
11.8.5 S.M.A.R.T. commands ........................................................................................77
11.8.6 S.M.A.R.T. operation with power management modes ......................................77
11.9. Security Mode Feature Set............................................................................................ 78
11.9.1 Security mode ......................................................................................................78
11.9.2 Security level .......................................................................................................78
11.9.3 Password ..............................................................................................................78
11.9.4 Master Password Revision Code .........................................................................79
11.9.5 Command table ....................................................................................................82
11.10. Protected Area Function............................................................................................. 83
11.10.1 Example for operation (In LBA Mode) .............................................................83
11.10.2 Set Max security extension commands .............................................................84
11.11. Address Offset Feature (vendor specific)................................................................... 85
11.11.1 Enable/Disable Address Offset Mode ...............................................................85
11.11.2 Identify Device Data ..........................................................................................86
11.11.3 Exceptions in Address Offset Mode .................................................................86
11.12. Seek Overlap............................................................................................................... 87
11.13. Write Cache function.................................................................................................. 87
11.14. Reassign Function....................................................................................................... 88
11.14.1 Auto Reassign Function ...................................................................................88
11.15. 48-bit Address Feature Set......................................................................................... 89
12.0. Command protocol ............................................................................................................ 91
12.1. Data In commands........................................................................................................ 91
12.2. Data Out Commands..................................................................................................... 92
12.3. Non-data commands.................................................................................................... 93
12.4. DMA Data Transfer commands: ................................................................................. 95
13.0. Command descriptions...................................................................................................... 97
13.1. Check Power Mode (E5h/98h) ................................................................................... 103
13.2. Device Configuration Overlay (B1h) ......................................................................... 104
13.2.1 DEVICE CONFIGURATION RESTORE (subcommand C0h) ......................104
13.2.2 DEVICE CONFIGURATION FREEZE LOCK (subcommand C1h) ..............104
13.2.3 DEVICE CONFIGURATION IDENTIFY (subcommand C2h) .....................105
13.2.4 DEVICE CONFIGURATION SET (subcommand C3h) ..................................105
13.3. Execute Device Diagnostic (90h)............................................................................... 107
13.4. Flush Cache (E7h) ...................................................................................................... 108
13.5. Flush Cache EXT (EAh)............................................................................................. 109
13.6. Format Track (50h: vendor specific).......................................................................... 110
13.7. Format Unit (F7h: vendor specific)............................................................................ 111
13.8. Identify Device (ECh)................................................................................................. 112
13.9. Idle (E3h/97h)............................................................................................................ 123
13.10. Idle Immediate (E1h/95h)......................................................................................... 124
13.11. Initialize Device Parameters (91h) ........................................................................... 125

13.12. Read Buffer (E4h)..................................................................................................... 126
13.13. Read DMA (C8h/C9h).............................................................................................. 127
13.14. Read DMA EXT (25h) ............................................................................................. 129
13.15. Read Log Ext (2Fh).................................................................................................. 131
13.15.1 General purpose log Directory ........................................................................132
13.15.2 Extended comprehensive SMART error log ...................................................133
13.15.3 Error Log version ............................................................................................133
13.15.4 Extended Self-test log sector ...........................................................................136
13.16. Read Long (22h/23h)................................................................................................ 138
13.17. Read Multiple (C4h)................................................................................................. 140
13.18. Read Multiple EXT (29h)......................................................................................... 142
13.19. Read Native Max ADDRESS (F8h)......................................................................... 143
13.20. Read Native Max ADDRESS EXT (27h) ................................................................ 144
13.21. Read Sectors (20h/21h)............................................................................................. 145
13.22. Read Sector(s) EXT (24h)........................................................................................ 146
13.23. Read Verify Sectors (40h/41h)................................................................................. 148
13.24. Ready Verify Sector(s) EXT (42h)........................................................................... 150
13.25. Recalibrate (1xh) ...................................................................................................... 152
13.26. Security Disable Password (F6h).............................................................................. 153
13.27. Security Erase Prepare (F3h).................................................................................... 154
13.28. Security Erase Unit (F4h)......................................................................................... 155
13.29. Security Freeze Lock (F5h)...................................................................................... 157
13.30. Security Set Password (F1h)..................................................................................... 158
13.31. Security Unlock (F2h) .............................................................................................. 160
13.32. Seek (7xh)................................................................................................................ 161
13.33. Sense Condition (F0h: vendor specific) ................................................................... 162
13.34. Set Features (EFh) .................................................................................................... 163
13.35. Set Max ADDRESS (F9h)........................................................................................ 165
13.36. Set Max ADDRESS EXT (37h)............................................................................... 167
13.37. Set Multiple (C6h).................................................................................................... 169
13.38. Sleep (E6h/99h)........................................................................................................ 170
13.39. S.M.A.R.T. Function Set (B0h)................................................................................ 171
13.39.1 S.M.A.R.T. Function Subcommands ..............................................................171
13.39.2 Device Attribute Data Structure ......................................................................177
13.39.3 Device Attribute Thresholds data structure .....................................................182
13.39.4 S.M.A.R.T Log Directory ................................................................................183
13.39.5 S.M.A.R.T. error log sector .............................................................................183
13.39.6 Self-test log data structure ..............................................................................185
13.39.7 Selective self-test log data structure ................................................................185
13.39.8 Error reporting .................................................................................................187
13.40. Standby (E2h/96h).................................................................................................... 188
13.41. Standby Immediate (E0h/94h).................................................................................. 189
13.42. Write Buffer (E8h).................................................................................................... 190
13.43. Write DMA (CAh/CBh)........................................................................................... 191
13.44. Write DMA EXT (35h) ............................................................................................ 193
13.45. Write DMA FUA Ext (3Dh)..................................................................................... 195

13.46. Write Log Ext (3Fh) ................................................................................................. 197
13.47. Write Long (32h/33h)............................................................................................... 199
13.48. Write Multiple (C5h)................................................................................................ 201
13.49. Write Multiple EXT (39h)........................................................................................ 202
13.50. Write Multiple FUA Ext (CEh)................................................................................ 204
13.51. Write Sectors (30h/31h)............................................................................................ 206
13.52. Write Sectors(s) EXT (34h)...................................................................................... 208
13.53. Write Verify (3Ch: vendor specific)......................................................................... 209
14.0. Timings ............................................................................................................................. 211
15.0. Appendix........................................................................................................................... 213
15.1. Commands Support Coverage.................................................................................... 213
15.2. SET FEATURES Commands Support Coverage....................................................... 215
15.3. Changes from the Travelstar 5K100........................................................................... 217

Table of Contents
Table 1: Formatted capacities ......................................................................................................11
Table 2: Data sheet ......................................................................................................................11
Table 3: Cylinder allocation (120GB model format) ..................................................................12
Table 4: Cylinder allocation (100GB model) ..............................................................................13
Table 5: Cylinder allocation (80GB model format) ....................................................................14
Table 6: Cylinder allocation (60GB model format) ....................................................................15
Table 7: Cylinder allocation (40GB model format) ....................................................................16
Table 8: Performance characteristics ...........................................................................................17
Table 9: Mechanical positioning performance ............................................................................17
Table 10: Full stroke seek time ....................................................................................................18
Table 11: Single track seek time ..................................................................................................18
Table 12: Average latency ...........................................................................................................19
Table 13: Drive ready time ..........................................................................................................19
Table 14: Description of operating modes ...................................................................................19
Table 15: Drive ready time ..........................................................................................................20
Table 16: Environmental condition .............................................................................................25
Table 17: Limits of temperature and humidity ............................................................................26
Table 18: Magnetic flux density limits ........................................................................................27
Table 19: DC power requirements ...............................................................................................27
Table 20: Power consumption efficiency ....................................................................................28
Table 21: Physical dimensions and weight ..................................................................................31
Table 22: Random vibration PSD profile breakpoints (operating) ..............................................34
Table 23: Swept sine vibration ....................................................................................................34
Table 24: Random Vibration PSD Profile Breakpoints (nonoperating) ......................................35
Table 25: Operating shock ...........................................................................................................35
Table 26: Nonoperating shock .....................................................................................................35
Table 27: Weighted sound power ................................................................................................36
Table 28: Signal definitions .........................................................................................................40
Table 29: SpecMial signal definitions for Ultra DMA ................................................................41
Table 30: PIO cycle timings ........................................................................................................45
Table 31: Multiword DMA cycle timings ...................................................................................46
Table 32: Ultra DMA cycle timings (Initiating Read) .................................................................47
Table 33: Ultra DMA cycle timings (Host Pausing Read) ..........................................................48
Table 34: Ultra DMA cycle timings (Host Terminating Read) ...................................................49
Table 35: Ultra DMA cycle timings (Device Terminating Read) ...............................................50
Table 36: Ultra DMA cycle timing (Initiating Write) .................................................................51
Table 37: Ultra DMA cycle timing (Device Pausing Write) .......................................................52
Table 38: Ultra DMA cycle timings (Device TerminatingWrite) ...............................................53
Table 39: Ultra DMA cycle timings (Host Terminating Write) ..................................................54
Table 40: Register Set ..................................................................................................................63
Table 41: Alternate Status Register .............................................................................................64
Table 42: Device Control Register ..............................................................................................65

Table 43: Drive Address Register ................................................................................................65
Table 44: Device Head/Register .................................................................................................66
Table 45: Error Register ..............................................................................................................66
Table 46: Status Register .............................................................................................................67
Table 47: Reset response table ....................................................................................................69
Table 48: Default Register Values ...............................................................................................70
Table 49: Diagnostic codes ..........................................................................................................70
Table 50: Device behavior by ATA command ............................................................................72
Table 51: Power conditions .........................................................................................................75
Table 52: Initial setting ................................................................................................................79
Table 53: Usual operation for POR .............................................................................................80
Table 54: Password lost ...............................................................................................................81
Table 55: Command table for device lock operation ..................................................................82
Table 56: Set Max SET PASSWORD data content ....................................................................84
Table 57: Set Max security mode transition ................................................................................85
Table 58: Device address map before and after Set Feature .......................................................86
Table 59: Seek overlap ................................................................................................................87
Table 60: Command Set (1 of 2) .................................................................................................97
Table 61: Command Set (2 of 2) .................................................................................................99
Table 62: Command Set (subcommand) ...................................................................................101
Table 63: Check Power Mode Command (E5h/98h) ................................................................103
Table 64: Device Configuration Overlay Command (B1h) ......................................................104
Table 65: Device Configuration Overlay Features register values ............................................104
Table 66: Device Configuration Overlay Data structure ..........................................................106
Table 67: DCO error information definition. ............................................................................106
Table 68: Execute Device Diagnostic command (90h) .............................................................107
Table 69: Flush Cache command (E7h) ....................................................................................108
Table 70: Flush Cache command (E7h) ....................................................................................109
Table 71: Format Track command (50h) ...................................................................................110
Table 72: Format Unit command (F7h) .....................................................................................111
Table 73: Identify Device command (ECh) ...............................................................................112
Table 74: Identify device information. (Part 1 of 7) .................................................................113
Table 75: Identify device information. (Part 2 of 7) .................................................................114
Table 76: Identify device information. (Part 3 of 7) .................................................................115
Table 77: Identify device information. (Part 4 of 7) .................................................................116
Table 78: Identify device information. (Part 5 of 7 ...................................................................118
Table 79: Identify device information. (Part 6 of 7) .................................................................120
Table 80: Identify device information. (Part 7 of 7) .................................................................121
Table 81: Number of cylinders/heads/sectors by model. ..........................................................122
Table 82: Idle command (E3h/97h) ...........................................................................................123
Table 83: Idle Immediate command (E1h/95h) .........................................................................124
Table 84: Initialize Device Parameters command (91h) ..........................................................125
Table 85: Read Buffer (E4h) .....................................................................................................126
Table 86: Read DMA command (C8h/C9h) ..............................................................................127
Table 87: Read DMA EXT (25h) .............................................................................................129
Table 88: Read Log Ext command (2Fh) ..................................................................................131

Table 89: Log address definition ...............................................................................................132
Table 90: Extended comprehensive SMAERT error log ...........................................................133
Table 91: Command data structure ............................................................................................134
Table 92: Command data structure ............................................................................................135
Table 93: Extended Self-test log data structure .........................................................................136
Table 94: Extended self-test log descriptor entry ......................................................................137
Table 95: Read Long (22h/23h) .................................................................................................138
Table 96: Read Multiple (C4h) ..................................................................................................140
Table 97: Read Multiple EXT (29h) ..........................................................................................142
Table 98: Read Native Max ADDRESS (F8h) ..........................................................................143
Table 99: Read Native Max ADDRESS EXT (27h) .................................................................144
Table 100: Read Sectors (20h/21h) ...........................................................................................145
Table 101: Read Sector(s) EXT Command (24h) .....................................................................146
Table 102: Read Verify Sectors (40h/41h) ................................................................................148
Table 103: Read Verify Sector(s) EXT Command (42h) ..........................................................150
Table 104: Recalibrate (1xh) .....................................................................................................152
Table 105: Security Disable Password (F6h) ............................................................................153
Table 106: Password Information for Security Disable Password command ..........................153
Table 107: Security Erase Prepare Command (F3h) .................................................................154
Table 108: Security Erase Unit (F4h) ........................................................................................155
Table 109: Erase Unit information ............................................................................................155
Table 110: Security Freeze Lock (F5h) .....................................................................................157
Table 111: Security Set Password (F1h) ...................................................................................158
Table 112: Security Set Password information ........................................................................158
Table 113: Security Unlock (F2h) .............................................................................................160
Table 114: Seek (7xh) ...............................................................................................................161
Table 115: Sense Condition (F0h: vendor specific) ..................................................................162
Table 116: Set Features (EFh) ...................................................................................................163
Table 117: Set Max ADDRESS (F9h) .......................................................................................165
Table 118: Set Max ADDRESS EXT Command (37h) ............................................................167
Table 119: Set Multiple command (C6h) ..................................................................................169
Table 120: Sleep (E6h/99h) .......................................................................................................170
Table 121: S.M.A.R.T. Function Set (B0h) ...............................................................................171
Table 122: Selective self-test span example ..............................................................................173
Table 123: Device Attribute Data Structure ..............................................................................177
Table 124: Status Flag definitions .............................................................................................179
Table 125: Device Attribute Thresholds Data Structure ...........................................................182
Table 126: S.M.A.R.T. Log Director .........................................................................................183
Table 127: Command data structure. ........................................................................................184
Table 128: Command data structure ..........................................................................................184
Table 129: Error data structure ..................................................................................................184
Table 130: Self-test log data structure .......................................................................................185
Table 131: Selective self-test log ...............................................................................................186
Table 132: S.M.A.R.T. Error Codes ..........................................................................................187
Table 133: Standby (E2h/96h) ...................................................................................................188
Table 134: Standby Immediate (E0h/94h) .................................................................................189

Table 135: Write Buffer (E8h) ..................................................................................................190
Table 136: Write DMA (CAh/CBh) ..........................................................................................191
Table 137: Write DMA (35h) ....................................................................................................193
Table 138: Write Log Ext command .........................................................................................197
Table 139: Write Long (32h/33h) ..............................................................................................199
Table 140: Write Multiple (C5h) ...............................................................................................201
Table 141: Write Multiple EXT (39h) .......................................................................................202
Table 142: Write Multiple FUA Ext (CEh) ...............................................................................204
Table 143: Write Sectors Command (30h/31h) .........................................................................206
Table 144: Write Sector(s) EXT Command (34h) ....................................................................208
Table 145: Time-out values .......................................................................................................211
Table 146: Command coverage (1 of 2) ....................................................................................213
Table 147: Command coverage (2 of 2) ....................................................................................214
Table 148: SET FEATURES command coverage .....................................................................215

Travelstar 4K120 Hard Disk Drive Specification
1
1.0 General
1.1 Introduction
This document describes the specifications of the following Travelstar 4K120, a 2.5-inch hard disk drive, ATA/IDE
interface with a rotational speed of 4K120 RPM and a height of 9.5 mm:
Part 1 of this document beginning on page 7 defines the hardware functional specification. Part 2 of this document
beginning on page 57 defines the interface specification
These specifications are subject to change without notice.
1.2 References
ATA/ATAPI-7 (T13/1410D Revision 3b)
1.3 Abbreviations
Abbreviation Meaning
32 KB 32 x 1024 bytes
64 KB 64 x 1024 bytes
AAmpere
AC alternating current
AT Advanced Technology
ATA Advanced Technology Attachment
BIOS Basic Input/Output System
C 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
Drive name Model number Capacity Height (mm) Rotation Speed
(rpm)
Travelstar 4K120-120 HTS421212H9AT00 120 GB 9.5 4200
Travelstar 4K120-100 HTS421210H9AT00 100 GB 9.5 4200
Travelstar 4K120-80 HTS421280H9AT00 80 GB 9.5 4200
Travelstar 4K120-60 HTS421260H9AT00 60 GB 9.5 4200
Travelstar 4K120-40 HTS421240H9AT00 40 GB 9.5 4200

Travelstar 4K120 Hard Disk Drive Specification
2
EMC electromagnetic compatibility
ERP Error Recovery Procedure
ESD Electrostatic Discharge
FCC Federal Communications Commission
FRU field replacement unit
G gravity (a unit of force)
G2/Hz (32 ft/sec)2per Hertz
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
I/O Input/Output
ISO International Standards Organization
KB 1,000 bytes
Kbpi 1000 bits per inch
kgf-cm kilogram (force)-centimeter
KHz kilohertz
LBA logical block addressing
Lw unit of A-weighted sound power
mmeter
max maximum
MB 1,000,000 bytes
Mbps 1,000,000 bits per second
MHz megahertz
MLC Machine Level Control
mm millimeter
ms millisecond
us, ms microsecond
No number
OOutput
OD Open Drain Programmed Input/Output
PIO Programmed Input/Output
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

Travelstar 4K120 Hard Disk Drive Specification
3
RH relative humidity
% RH per cent relative humidity
RMS root mean square
RPM revolutions per minute
RST reset
R/W read/write
sec second
SELV secondary low voltage
S.M.A.R.TSelf-Monitoring, Analysis, and Reporting Technology
TPI tracks per inch
Trk track
TTL transistor-transistor logic
UL Underwriters Laboratory
Vvolt
VDE Verband Deutscher Electrotechniker
Wwatt
3-state transistor-transistor tristate logic
1.4 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
• This drive can be damaged by electrostatic discharge (ESD). Any damages incurred to the drive after its
removal from the shipping package and the ESD protective bag are the responsibility of the user.

Travelstar 4K120 Hard Disk Drive Specification
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1.5 Drive handling precautions
Do not press on the drive cover during handling.

Travelstar 4K120 Hard Disk Drive Specification
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2.0 Outline of the drive
• 2.5 inch, 9.5-mm height
• Formatted capacities of 120 GB, 100 GB, 80 GB, 60 GB, 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 428 KB is used for firmware
• 2048 KB - Upper 428 KB is used for firmware (HTS421240H9AT00)
• Fast data transfer rate – up to 100 MB/s
• Media data transfer rate (max): 376 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
• 0.45 Watts at idle state
• Power on to ready - 3.0(40,60GB) / 3.5(80, 100,120GB) sec at typical condition
• Operating shock:
• 2940 m/sec2(300 G)/2ms
• 1568 m/sec2 (160G)/1ms
• Non-operating shock: 9800 m/sec2(1000 G)/1ms

Travelstar 4K120 Hard Disk Drive Specification
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