Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications page 6

6.9.3 Host Terminating Read DMA ...................................................................34
6.9.4 Device Terminating Read DMA ...............................................................35
6.9.5 Initiating Write DMA ................................................................................36
6.9.6 Device Pausing Write DMA ......................................................................37
6.9.7 Device Terminating Write DMA ...............................................................38
6.9.8 Host Terminating Write DMA ..................................................................39
6.10. Addressing of registers ..................................................................................... 40
6.10.1 Cabling ....................................................................................................40
7.0. Specification ..............................................................................................................43
7.1. Jumper settings ................................................................................................... 43
7.1.1 Jumper pin location ...................................................................................43
7.1.2 Jumper pin identification ...........................................................................43
7.1.3 Jumper pin assignment ..............................................................................43
7.1.4 Jumper positions ........................................................................................45
7.2. Environment ....................................................................................................... 49
7.2.1 Temperature and humidity ........................................................................49
7.2.2 Corrosion test .............................................................................................50
7.3. DC power requirements...................................................................................... 50
7.3.1 Input voltage ..............................................................................................51
7.3.2 Power supply current (typical) ..................................................................52
7.3.3 Power supply generated ripple at drive power connector .........................53
7.4. Reliability ........................................................................................................... 55
7.4.1 Data integrity .............................................................................................55
7.4.2 Cable noise interference ............................................................................55
7.4.3 Start/stop cycles .........................................................................................55
7.4.4 Preventitive Maintenance ..........................................................................55
7.4.5 Data reliability ...........................................................................................55
7.4.6 Required power-off sequence ....................................................................55
7.5. Mechanical specifications................................................................................... 56
7.5.1 Physical dimensions and weight ................................................................56
7.5.2 Mounting hole locations ............................................................................58
7.5.3 Connector locations ...................................................................................59
7.5.4 Drive mounting ..........................................................................................60
7.5.5 Heads unload and actuator lock .................................................................60
7.6. Vibration and shock............................................................................................ 61
7.6.1 Operating vibration ....................................................................................61
7.6.2 Nonoperating vibration ..............................................................................61
7.6.3 Operating shock .........................................................................................62
7.6.4 Nonoperating shock ...................................................................................62
7.6.5 Nonoperating rotational shock ..................................................................62
7.7. Acoustics............................................................................................................. 63
7.8. Identification labels ............................................................................................ 63
7.9. Safety .................................................................................................................. 64
7.9.1 UL and CSA approval ...............................................................................64
7.9.2 German safety mark ..................................................................................64
7.9.3 Flammability ..............................................................................................64