Table 5:

Serial ATA connector pin definitions

 

 

 

 

Segment

Pin

Function

Definition

 

 

 

 

 

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

 

P8

V5

5V power

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

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.

4.2.1ATA Security policy exceptions

In the ATA Security Interface mode, the drive conforms to the ATA Security Policy, except the following desir- able exceptions to implement the desired Momentus 5400 FDE.3 SATA behavior:

Upon execution of the secure erase sequence, the drive will have the following behavior:

•All secure erase modes will instantaneously delete the encryption key rendering all user data unintelligible.

•A new encryption key will be generated inside the drive replacing the previous encryption key.

•The new encryption/decryption key will be applied to the data for all subsequent writes/reads prior to the next secure erase sequence.

•The user password will be cleared to a null value.

•The master password will retain the current value per the ATA specification.

Note. On completion of this sequence, the user is assured that all sectors on the drive are unintelligible and

26

Momentus 5400 FDE.3 SATA Product Manual, Rev. A

Page 31 Page 33
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Seagate ST9120312AS, ST9320322AS, ST9160312AS manual ATA Security policy exceptions, Pin Function Definition
Page 31 Page 33

ST9120312AS, ST9160312AS, ST9320322AS specifications

The Seagate ST9320322AS, ST9160312AS, and ST9120312AS are hard disk drives (HDDs) designed for reliable storage solutions in various computing environments. These drives belong to the Barracuda line, known for their high performance and robust features.

The ST9320322AS is a 320GB, 2.5-inch SATA hard drive that operates at a speed of 7200 RPM. It has a 16MB cache buffer, enhancing data access speeds and allowing for efficient multi-tasking. This drive is particularly suitable for laptops, external drives, and other applications requiring high-capacity storage paired with portability. Its low power consumption makes it an ideal choice for mobile systems, contributing to longer battery life.

On the other hand, the ST9160312AS is a 160GB version, also a 2.5-inch SATA HDD running at 7200 RPM. Like the ST9320322AS, it features a 16MB cache, which optimizes performance for everyday computing tasks. This model is often utilized in gaming consoles and entry-level laptops, offering a balance of performance and affordability. With a height of only 9.5mm, it is designed to fit in ultrathin laptops while providing ample storage space for user data, applications, and multimedia files.

The ST9120312AS further reduces storage capacity to 120GB, while maintaining the same rotational speed of 7200 RPM. This HDD is designed for users looking for reliable, cost-effective storage solutions without compromising on performance. Like its counterparts, it features a 16MB cache and operates efficiently, making it suitable for applications that require moderate data storage, such as basic computing tasks and media storage.

All three models leverage Seagate’s advanced recording technology, which enhances data integrity and reliability. They also incorporate sophisticated error recovery tools that help prevent data loss, ensuring longevity and durability under various operating conditions. These drives support the SATA interface, which provides high-speed data transfer rates, making them compatible with a wide range of computing devices.

In conclusion, the Seagate ST9320322AS, ST9160312AS, and ST9120312AS hard drives represent a strong selection for users in need of reliable, efficient, and compact storage solutions. With their combination of high performance, energy efficiency, and advanced technologies, they continue to serve a vital role in modern computing architectures.
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