Segment Pin Function Definition, 3V power | Seagate ST33000651AS

4.0 SATA Interface

These drives use the industry-standard Serial ATA(SATA) interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1Hot-Plug compatibility

Barracuda drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA Revision 2.6 specification. This specification can be downloaded from www.serialata.org.

4.2Serial ATA device plug connector pin definitions

Table 6 summarizes the signals on the Serial ATA interface and power connectors.

Table 6 Serial ATA connector pin definitions

Segment	Pin	Function		Definition

	S1	Ground		2nd mate

	S2	A+		Differential signal pair A from Phy

	S3	A-

	S4	Ground		2nd mate

	S5	B-		Differential signal pair B from Phy

	S6	B+

Signal	S7	Ground		2nd mate

			Key and spacing separate signal and power segments

Power	P1	V33		3.3V power

Barracuda XT SATA Product Manual, Rev. D

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Seagate ST33000651AS, ST32000641AS manual Segment Pin Function Definition, Ground 2nd mate, 3V power

Contents

100586689 Rev. D September BarracudaXT Revision Date Description of changes Revision History Contents Barracuda XT Sata Product Manual, Rev. D Figures Barracuda XT Sata Product Manual, Rev. D Seagate Technology Support Services Barracuda XT Sata Product Manual, Rev. D About the Serial ATA interface Introduction Drive Specifications LBA mode Default logical geometryFormatted capacity Start/stop times Physical characteristicsPower specifications Recording and interface technology Standby mode Read/write power and currentOperating power and current Idle mode power Typical 12V startup and operation current profiles 3000GB Typical 5V startup and operation current profiles 3000GB Typical 12V startup and current profiles 2000GB Typical 5V startup and current profiles 2000GB Power management modes Conducted noiseVoltage tolerance Altitude Environmental specifications Ambient temperatureTemperature gradient Humidity Shock VibrationAcoustics Test for Prominent Discrete Tones PDTs Electromagnetic immunityTest Description Performance level Reference Standard FCC verification WarrantyAgency certification Safety certification Electromagnetic Compatibility EMC Environmental protection China Restriction of Hazardous Substances RoHS DirectiveCorrosive environment Drive Specifications Handling and static-discharge precautions Configuring the driveSerial ATA cables and connectors Attaching Sata cabling Drive mounting Mounting dimensions 3000GB model Mounting dimensions 2000GB model 3V power Segment Pin Function DefinitionGround 2nd mate P14 3V power, pre-charge, 2nd mate12V power, pre-charge, 2nd mate 12V power Command name Command code in hex Supported ATA commands Command name Word Description Value Identify Device command 57-58 Current capacity in sectors Or Write Multiple commandNumber of current logical heads Number of current logical sectors per logical track BE01H 00DEHFffeh Bit Word Set Features command Enable read look-ahead read cache feature defaultAAH Code in features register A.R.T. command 3 S.M.A.R.T. commands Barracuda XT Sata Product Manual, Rev. D Master/slave 9 mounting Barracuda XT Sata Product Manual, Rev. D Barracuda XT Sata Product Manual, Rev. D Barracuda XT Sata Product Manual, Rev. D Page ASIA/PACIFIC Seagate Technology LLC