4.0ATA interface

These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

For detailed information about the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-6), NCITS T13 1410D, subsequently referred to as the Draft ATA-6 Standard.

4.1ATA interface signals and connector pins

The following table summarizes the signals on the 44-pin ATA interface connector. For a detailed description of these signals, refer to the Draft ATA-6 Standard.

Table 6:

Connector signals

 

 

 

 

 

 

 

Connector

Cable

Signal Name

Contact

Conductor

 

 

 

 

RESET-

 

1

1

 

 

 

 

DD7

 

3

3

 

 

 

 

DD6

 

5

5

 

 

 

 

DD5

 

7

7

 

 

 

 

DD4

 

9

9

 

 

 

 

DD3

 

11

11

 

 

 

 

DD2

 

13

13

 

 

 

 

DD1

 

15

15

 

 

 

 

DD0

 

17

17

 

 

 

 

Ground

 

19

19

 

 

 

 

DMARQ

 

21

21

 

 

 

 

DIOW-

 

23

23

 

 

 

 

DIOR-

 

25

25

 

 

 

 

IORDY

 

27

27

 

 

 

 

DMACK-

 

29

29

 

 

 

 

INTRQ

 

31

31

 

 

 

 

DA1

 

33

33

 

 

 

 

DA0

 

35

35

 

 

 

 

CS1FX-

 

37

37

 

 

 

 

DASP-

 

39

39

 

 

 

 

+5 V (Logic)

 

41

41

 

 

 

Ground (Return)

43

43

 

 

 

 

Cable

Connector

 

Conductor

Contact

Signal Name

 

 

 

2

2

Ground

 

 

 

4

4

DD8

 

 

 

6

6

DD9

 

 

 

8

8

DD10

 

 

 

10

10

DD11

 

 

 

12

12

DD12

 

 

 

14

14

DD13

 

 

 

16

16

DD14

 

 

 

18

18

DD15

 

 

 

20

20

(keypin)

 

 

 

22

22

Ground

 

 

 

24

24

Ground

 

 

 

26

26

Ground

 

 

 

28

28

PSYNC:CSEL

 

 

 

30

30

Ground

 

 

 

32

32

IOCS16-

 

 

 

34

34

PDIAG-

 

 

 

36

36

DA2

 

 

 

38

38

CS3FX-

 

 

 

40

40

Ground

 

 

 

42

42

+5V (Motor)

 

 

 

44

44

No connection

 

 

 

Momentus 5400.2 Product Manual, Rev. D

19

Page 24 Page 26
Page 25
Image 25
Seagate ST9808211A, ST960822A, ST9408114A, ST9308110A manual ATA interface signals and connector pins, Connector signals
Page 24 Page 26

ST9408114A, ST9808211A, ST9308110A, ST9100823A, ST960822A specifications

Seagate has long been a leader in the hard disk drive industry, and its array of models, such as ST960822A, ST9100823A, ST9308110A, ST9808211A, and ST9408114A, exemplifies the company's commitment to innovation, reliability, and performance. Each of these models offers unique features and specifications that cater to a variety of storage needs.

The Seagate ST960822A stands out with 60GB capacity and a 5400 RPM spindle speed. It employs the Ultra ATA/100 interface, facilitating rapid data transfer rates up to 100MB/s. This model is designed for compact systems and provides ample storage for files, applications, and multimedia. Its advanced power management features also help in reducing energy consumption, making it an efficient choice for mobile and desktop computing.

Moving on to the ST9100823A, this drive offers a larger storage capacity of 100GB, also operating at 5400 RPM. It incorporates the Serial ATA interface, which enhances the drive's performance and allows for easier connection in modern computer systems. The ST9100823A is built with Seagate’s Quiet Airflow technology, ensuring quieter operations, while its rugged design promotes endurance and durability, making it suitable for both desktop and external storage uses.

The ST9308110A takes performance up a notch with a capacity of 300GB. This model leverages the SATA interface, providing faster data throughput, making it ideal for data-intensive applications including gaming and video editing. It features 8MB cache memory, which aids in quicker data retrieval and overall system responsiveness. This drive is a solid choice for users seeking high performance without sacrificing storage space.

Next, the ST9808211A expands on storage capabilities with 80GB capacity. Like the previous models, it runs at a speed of 5400 RPM, but its enhanced caching mechanisms optimize read and write operations. The drive is particularly suited for multimedia applications, where speed and storage are paramount, ensuring that users can store and retrieve large files seamlessly.

Lastly, the ST9408114A features a compact 40GB capacity, yet delivers exceptional speed with its 7200 RPM mechanism. This drive is tailored toward performance-oriented applications, such as gaming and high-performance computing scenarios. The combination of its increased RPM and fast access times make it a robust choice for users desiring responsiveness in their systems.

Collectively, these Seagate models embody a range of technologies and characteristics, from the ATA interface to advanced power management, making them suitable for a variety of applications. Whether one needs high capacity, enhanced performance, or reliability, Seagate continues to offer drives that meet diverse storage requirements in an increasingly data-driven world.
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