Maxtor STM31000334AS Conducted noise, Voltage tolerance, Power-management modes, Active mode

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2.7.2Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

•Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz.

•Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

2.7.3Voltage tolerance

Voltage tolerance (including noise):

5V +10% / -7.5%

12V +10% / -7.5%

2.7.4Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following power-management modes:

Power modes

Heads

Spindle

Buffer

 

 

 

 

Active

Tracking

Rotating

Enabled

 

 

 

 

Idle

Tracking

Rotating

Enabled

 

 

 

 

Standby

Parked

Stopped

Enabled

 

 

 

 

Sleep

Parked

Stopped

Disabled

 

 

 

 

•Active mode

The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is necessary.

•Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a specifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary.

DiamondMax 22 Serial ATA Product Manual, Rev. A

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Contents STM31000334AS STM3320614AS STM3160813AS DiamondMax 22 Serial ATARevision Date Sheets affected or comments Rev. a 11/04/08 Initial releaseContents DiamondMax 22 Serial ATA Product Manual, Rev. a Typical 5V startup and operation current profile List of FiguresPage Introduction About the Serial ATA interface Drive specifications Drive specifications summary for 1000 Gbyte models DiamondMax 22 Serial ATA Product Manual, Rev. a Drive specifications summary for 320 and 160 Gbyte models DiamondMax 22 Serial ATA Product Manual, Rev. a Recording and interface technology Default logical geometryLBA mode Formatted capacitySeek time Physical characteristicsTypical seek times msec Read Write Start/stop times Power specificationsDC power requirements Typical 12V startup and operation current profile Typical 5V startup and operation current profileSleep mode Power-management modesActive mode Idle modeEnvironmental specifications 160 GB models ShockOperating shock Nonoperating shock GB modelsTest for Prominent Discrete Tones PDTs AcousticsElectromagnetic immunity Fluid Dynamic Bearing FDB motor acousticsElectromagnetic compatibility Safety certificationReliability Agency certificationAustralian C-Tick N176 Korean RRLFCC verification China Restriction of Hazardous Substances RoHS Directive Environmental protection13.2 Corrosive environmentDiamondMax 22 Serial ATA Product Manual, Rev. a Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions 1000 GB modelsMounting dimensions 320 and 160 GB models Hot-Plug compatibility Serial ATA Sata interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordWord Set Features command values Set Features commandM.A.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index ITE Page DiamondMax 22 Serial ATA Product Manual, Rev. a Page Seagate Technology LLC
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