Hitachi HTS421212H9AT00 - Travelstar 120 GB Hard Drive Specifications page 11

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