Seagate ST9750424AS Serial ATA device plug connector pin definitions, Pin Function Definition

Page 29

5.2Serial 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

NC

 

Not connected

 

 

 

 

 

 

P14

NC

 

Not connected

 

 

 

 

 

 

P15

NC

 

Not connected

 

 

 

 

 

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 Product Manual, Rev. C

23

Page 28 Page 30
Image 29
Page 28 Page 30
Contents Standard models Free-fall sensor models MomentusRevision Date Sheets affected or comments Revision historyContents Momentus Product Manual, Rev. C List of Figures Page Seagate Online Support and Services Seagate Technology support servicesStandard models Free Fall Protection models IntroductionAbout the Serial ATA interface Drive specifications for 750, 640 and 500 GB models Drive specificationsSpecification summary table Altitude, nonoperating LBA mode Default logical geometryFormatted capacity Physical organizationRecording and interface technology Physical characteristicsDrive specification Start/stop times Seek timeTypical seek times Typical seek times ms ReadPower specifications Typical current profile Voltage tolerance Conducted noisePower management modes Power-management modesActive mode Idle modeEnvironmental specifications Operating shock ShockNonoperating shock VibrationAcoustics Drive A-weighted Sound Power Levels SWL, BAElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification Free Fall Protection featureReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 Corrosive environment Environmental protectionEuropean Union Restriction of Hazardous Substances RoHS China Restriction of Hazardous Substances RoHS DirectiveHandling 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 commandsATA-standard security commands Command name Command code in hexWord Description Value Identify Device commandXxxxH Fffeh 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 Momentus Product Manual, Rev. C Index ITE TPI Momentus Product Manual, Rev. C Page Seagate Technology LLC
Related manuals
Manual 46 pages 46.03 Kb

ST9500428AS, ST9640422AS, ST9750423ASG, ST9750420AS, ST9750420ASG specifications

The Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS are part of Seagate's popular lineup of SATA hard drives designed for consumer and enterprise applications. These drives are recognized for their reliability, performance, and advanced technologies, making them suitable for a variety of storage needs.

The ST9750422AS and ST9750423AS models are 7200 RPM drives with a storage capacity of 750 GB, while the ST9500423ASG and ST9640423ASG offer different capacities and characteristics tailored for specific uses. The ST9500423ASG typically features a 500 GB capacity, while the ST9640423ASG is often found with 640 GB of storage space. These drives support the Serial ATA interface, ensuring high-speed data transfer rates and compatibility with a broad range of host systems.

All drives in this series feature a robust 32 MB cache that enhances performance by allowing faster access to frequently used data. This cache is critical, especially for read/write operations that require rapid data retrieval, making these models well-suited for tasks ranging from simple home computing to more intensive applications such as gaming and multimedia editing.

The ST9750422AS and ST9750423AS models are built with technologies such as Advanced Format, which improves storage capacity and enhances error correction. Additionally, these drives employ Seagate's PowerBalance and PowerFin technologies, enabling efficient power management without compromising performance.

Reliability is a core characteristic of the Seagate ST9XXX series, featuring a mean time between failures (MTBF) of over a million hours, which translates to increased system uptime and reduced potential for data loss. The drives also include features such as Native Command Queuing (NCQ), which optimizes the processing of multiple read/write commands, further boosting performance during heavy workloads.

In conclusion, the Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS hard drives represent a blend of speed, reliability, and advanced technology, making them an excellent choice for users looking for dependable storage solutions. Whether for a home PC or an enterprise server, these drives continue to deliver outstanding performance and value in a competitive market.
Top Page Image Contents