Interface Pin Assignment

DRIVE INTERFACE SIGNALS

PIN

SIGNAL

PIN

SIGNAL

 

 

 

 

1

RESET

2

GROUND

 

 

 

 

3

DD 7

4

DD 8

 

 

 

 

5

DD 6

6

DD 9

 

 

 

 

7

DD 5

8

DD 10

 

 

 

 

9

DD 4

10

DD 11

 

 

 

 

11

DD 3

12

DD 12

 

 

 

 

13

DD 2

14

DD 13

 

 

 

 

15

DD 1

16

DD 14

 

 

 

 

17

DD 0

18

DD 15

 

 

 

 

19

GROUND

20

KEY

 

 

 

 

21

DMARQ

22

GROUND

 

 

 

 

23

DIOW/STOP

24

GROUND

 

 

 

 

25

DIOR/

26

GROUND

 

-DMARDY

 

 

 

HSTROBE

 

 

 

 

 

 

27

IORDY/

28

CSEL

 

-DMARDY/-

 

 

 

DSTROBE

 

 

 

 

 

 

29

DMACK

30

GROUND

 

 

 

 

31

INTRQ

32

IOCS16

 

 

 

 

33

DA1

34

PDIAG

 

 

 

 

35

DA0

36

DA 2

 

 

 

 

37

CS0

38

CS1

 

 

 

 

39

DASP

40

GROUND

 

 

 

 

41

+5V (LOGIC)

42

+5V (MOTOR)

 

 

 

 

43

GROUND

44

RESERVED

 

 

 

 

Note: Symbol () in front of signal indicates negative logic.

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Toshiba MK3021GAS (HDD2181) user manual Drive Interface Signals

MK3021GAS (HDD2181) specifications

The Toshiba MK3021GAS, also known as HDD2181, is a high-performance hard disk drive designed for portable computing and consumer electronics. With a storage capacity of 30 GB, this device combines compact form with robust technology, making it an ideal choice for users looking for reliable data storage solutions.

One of the standout features of the MK3021GAS is its compact size and lightweight design, which is especially important for portable applications. It adopts a 2.5-inch form factor, allowing easy integration into laptops and external drives. Despite its small dimensions, it provides ample storage for applications, documents, multimedia files, and more, catering to a wide range of users.

The MK3021GAS operates at a spindle speed of 4,200 RPM, which, while not as fast as some modern drives, balances energy efficiency with acceptable performance for the tasks it is designed to handle. Its data transfer rate can reach up to 100 MB/s, which supports efficient reading and writing operations, making it suitable for various applications, including data backups and multimedia storage.

Technologically, the MK3021GAS incorporates an Ultra ATA/100 interface, enabling a high-speed connection to the host device. This compatibility with older and newer systems ensures versatility in usage and a straightforward installation process. The drive also features a 2 MB buffer, enhancing the overall performance by temporarily storing frequently read data for quicker access.

Given its design for mobile computing, the MK3021GAS incorporates advanced shock absorption and vibration-resistant technologies. This is crucial for protecting valuable data from potential damage during transport, making it a reliable option for users who require durability alongside performance.

In terms of power consumption, the MK3021GAS is designed to be energy-efficient, drawing less power compared to traditional 3.5-inch drives. This efficiency translates to longer battery life for portable devices, an essential consideration for on-the-go users.

Overall, the Toshiba MK3021GAS (HDD2181) exemplifies the perfect balance of compactness, performance, and reliability. Its combination of ample storage, efficiency, and durability makes it a great option for those requiring dependable data storage in portable formats. Whether for personal or professional use, this hard disk drive remains a notable product in Toshiba's lineup, reflecting the company’s commitment to quality and innovation in the storage solution market.