Seagate ST9120410AS Serial ATA device plug connector pin definitions, Pin Function Definition

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4.2Serial ATA device plug connector pin definitions

Table 7 summarizes the signals on the Serial ATA interface and power connectors..

Table 7:

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

 

 

 

 

 

 

P1

V33

 

3.3V power

 

P2

V33

 

3.3V power

 

P3

V33

 

3.3V power, pre-charge, 2nd mate

 

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

Reserved

 

The pin corresponding to P11 in the backplane receptacle connector is also reserved

 

 

 

 

The corresponding pin to be mated with P11 in the power cable receptacle connector

 

 

 

 

shall always be grounded

 

 

 

 

 

 

P12

Ground

 

1st mate.

 

 

 

 

 

 

P13

V12

 

12V power, pre-charge, 2nd mate

 

P14

V12

 

12V power

 

P15

V12

 

12V power

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.

Momentus 7200.4 SATA Product Manual, Rev. C

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Contents Momentus 7200.4 Sata Page Contents Momentus 7200.4 Sata Product Manual, Rev. C List of Figures Page Standard models Free Fall Protection models IntroductionAbout the Serial ATA interface Specification summary table Drive specificationsDrive specifications LBA mode Default logical geometryFormatted capacity Physical organizationRecording and interface technology Physical characteristicsDrive specification Start/stop times Seek timeTypical seek times Typical seek times msec ReadPower specifications Typical +5V only startup and operation current profile Typical current profileVoltage tolerance Conducted noisePower management modes Power-management modesActive mode Idle modeEnvironmental specifications Acoustics Electromagnetic immunity Free Fall Protection featureReliability Radio frequency environmentsAgency certification Page China Restriction of Hazardous Substances RoHS Directive Environmental protectionEuropean Union Restriction of Hazardous Substances RoHS Corrosive environment Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewHot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function DefinitionCommand name Command code in hex ATA-standard commands Supported ATA commandsCommand name Command code in hex Word Description Value Identify Device commandATA-standard security commands XxxxH Xx7FH Description if bit is set to Bit Set Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Seagate Online Support and Services Seagate Technology support servicesIndex ITE TPI Momentus 7200.4 Sata Product Manual, Rev. C Page Seagate Technology LLC

ST903203N1A2ASRK, ST905003N1A1ASRK, ST9160412AS, ST9250410ASG, ST9160412ASG specifications

Seagate technology has long been at the forefront of data storage solutions, and its line of hard drives exemplifies the blend of reliability, performance, and storage capacity. Among these, the Seagate ST9500420AS, ST9120410ASG, ST9320423AS, ST90250N1A1ASRK, and ST980412AS stand out as quality options suitable for various computing needs.

The Seagate ST9500420AS is a 500GB 2.5-inch SATA hard drive designed primarily for laptop users. It features a rotational speed of 5400 RPM, balancing performance with energy efficiency. The adoption of Advanced Format technology enhances its sector size, allowing for improved data integrity and capacity. Additionally, the drive supports Native Command Queuing (NCQ), which can optimize the drive's performance by managing multiple commands more efficiently.

Another notable model is the ST9120410ASG, a 120GB hard drive that caters to users seeking a compact yet efficient storage solution. Primarily used in laptops and external enclosures, this drive also operates at 5400 RPM. Combining a 2.5-inch form factor with a SATA interface, it allows for swift data transfers while maintaining low power consumption, which is essential for portable devices.

The ST9320423AS is another 2.5-inch hard drive, boasting a capacity of 320GB. This drive is notable for its shock protection features, which safeguard data against physical impacts, making it ideal for mobile computing environments. Like its counterparts, it also utilizes SATA technology and operates efficiently, ensuring that users have access to reliable storage without compromising on performance.

For more specialized applications, the ST90250N1A1ASRK provides a substantial 250GB capacity in a compact form factor. Engineered for demanding environments, this drive showcases Seagate's commitment to creating robust, long-lasting products. It combines speed with durability, representing an excellent choice for systems requiring frequent read/write operations.

Finally, the ST980412AS is a 80GB variant that remains a staple for users needing reliable data storage without excessive capacity. This drive supports similar technologies as its peers, ensuring effective performance for everyday computing tasks. Its lightweight design and efficient power utilization make it suitable for both personal and professional use.

In summary, these Seagate hard drives embody a blend of advanced technologies, extensive capacities, and reliability. Whether for casual use, professional applications, or portable computing, each model offers unique features tailored to meet diverse user needs. With a history of innovation, Seagate remains a leader in the data storage sector, ensuring that users have access to high-quality solutions across the board.