Seagate ST950011FS Serial ATA device plug connector pin definitions, Pin Function Definition

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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
Signal	S7	Ground	2nd mate

		Key and spacing separate signal and power segments

	P1	V33	not used
	P2	V33	not used
	P3	V33	not used
	P4	Ground	1st mate

	P5	Ground	2nd mate

	P6	Ground	2nd mate

	P7	V5	5V power, pre-charge, 2nd mate
Power	P8	V5	5V power
	P9	V5	5V power
	P10	Ground	2nd mate

	P11	Ground or LED signal	If grounded, drive ignores this signal

	P12	Ground	1st mate.

	P13	V12	not used
	P14	V12	not used
	P15	V12	not used

Notes:

1.All pins are in a single row, with a 1.27 mm (0.050”) pitch.

2.The comments on the mating sequence apply to the case of backplane blindmate connector only. In this case, the mating sequences are:

•the ground pins P4 and P12.

•the pre-charge power pins and the other ground pins.

•the signal pins and the rest of the power pins.

3.There are three power pins for each voltage. One pin from each voltage is used for pre-charge when installed in a blind-mate backplane configuration.

4.All used voltage pins (Vx) must be terminated.

24	Pulsar Product Manual, Rev. A

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Contents PulsarTM ST9200011FS ST9100011FS ST950011FSRevision history Revision DateContents Pulsar Product Manual, Rev. a List of Figures Page Introduction About the Serial ATA interface Specification summary tables Drive specifications summary for 200, 100 and 50 GB modelsPulsar Product Manual, Rev. a Default logical geometry for ATA based systems Formatted capacityPerformance, Recording and interface technology Physical characteristics PerformanceAccess time Typical access times µs Read WriteTime to Ready Power specifications 200GB DC power requirements 100GB DC power requirements 50GB DC power requirements Typical current profiles Conducted noiseVoltage tolerance Environmental specifications Operating vibration Electromagnetic immunityVibration Nonoperating vibrationReliability specifications ReliabilityAgency certification Environmental protection ChassisCorrosive environment Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingCooling Air flowSerial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex C6H Identify Device command Word Description ValueXxxxh Ffffh Description if bit is set to Bit Word Bit WordDevice supports Software Settings Preservation Media serial number is supported Write-Read-Verify feature set is supported Set Features command Set Features command values3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Pulsar Product Manual, Rev. a Warranty Support Direct.seagate.com Spp.seagate.com WebData Recovery Services Call Center Toll-free Direct dial Technical Support Warranty ServiceData Recovery Services Authorized Service Centers Presales SupportIndex Page Page Pulsar Product Manual, Rev. a Page Disc Drive, Scotts Valley, California 95066-4544, USA