Fujitsu MHW2060AC manual Ultra DMA sender and recipient timing requirements, Mode Name Comment

Models: MHW2060AC MHW2040AC

1 278
Download 278 pages 752 b
Page 230
Image 230

Interface

Table 5.30 Ultra DMA sender and recipient timing requirements

 

MODE 0

MODE 1

MODE 2

MODE 3

MODE 4

MODE 5

 

NAME

(in ns)

(in ns)

(in ns)

(in ns)

(in ns)

(in ns)

COMMENT

 

 

 

 

 

 

 

 

 

 

 

 

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tDSIC

14.7

 

9.7

 

6.8

 

6.8

 

4.8

 

2.3

 

Recipient IC data setup time (from

 

 

 

 

 

 

 

 

 

 

 

 

 

data valid until STROBE edge)

 

 

 

 

 

 

 

 

 

 

 

 

 

(*1)

tDHIC

4.8

 

4.8

 

4.8

 

4.8

 

4.8

 

2.8

 

Recipient IC data hold time (from

 

 

 

 

 

 

 

 

 

 

 

 

 

STROBE edge until data may

 

 

 

 

 

 

 

 

 

 

 

 

 

become invalid) (*1)

tDVSIC

72.9

 

50.9

 

33.9

 

22.6

 

9.5

 

6

 

Sender IC data valid setup time

 

 

 

 

 

 

 

 

 

 

 

 

 

(from data valid until STROBE

 

 

 

 

 

 

 

 

 

 

 

 

 

edge) (*2)

tDVHIC

9

 

9

 

9

 

9

 

9

 

6

 

Sender IC data valid hold time

 

 

 

 

 

 

 

 

 

 

 

 

 

(from STROBE edge until data

 

 

 

 

 

 

 

 

 

 

 

 

 

may become invalid) (*2)

*1: The correct data value shall be captured by the recipient given input data with a slew rate of 0.4 V/ns rising and falling and the input STROBE with a slew rate of 0.4 V/ns rising and falling at tDSIC and tDHIC timing (as measured through 1.5V).

*2: The parameters tDVSIC and tDVHIC shall be met for lumped capacitive loads of 15 and 40 pf at the IC where all signals have the same capacitive load value. Noise that may couple onto the output signals from external sources in a normally functioning system has not been included in these values.

Note:

All timing measurement switching points (low to high and high to low) shall be taken at 1.5V.

5-154

C141-E258

Page 230
Image 230
Fujitsu MHW2060AC, MHW2040AC manual Ultra DMA sender and recipient timing requirements, Mode Name Comment

MHW2060AC, MHW2040AC specifications

The Fujitsu MHW2040AC and MHW2060AC are notable hard disk drives (HDDs) that have been widely used in various computing applications, especially in laptops and compact devices. These models are part of Fujitsu's commitment to providing reliable storage solutions that meet the demands of modern computing.

The MHW2040AC offers a storage capacity of 40 GB, while the MHW2060AC provides a slightly larger capacity at 60 GB. This range of storage makes both models suitable for users looking for dependable space for documents, multimedia files, and software applications. Both drives utilize a 2.5-inch form factor, ideal for mobile computing, as they are lightweight and designed to fit into space-constrained environments.

In terms of performance, both drives operate at a spindle speed of 5400 RPM. This speed strikes a balance between power consumption and performance, making these drives an efficient choice for everyday tasks, such as web browsing and office applications. The drives are equipped with an interface of Ultra ATA/133, which enables faster data transfer rates compared to older models, thereby enhancing overall system responsiveness.

The MHW2040AC and MHW2060AC also incorporate several advanced technologies to bolster their performance and reliability. One such feature is the use of a fluid dynamic bearing (FDB) for the spindle motor, which minimizes noise and vibration, thus improving the overall user experience. Additionally, both drives come with error correction technology that helps maintain data integrity by detecting and correcting errors during read and write operations.

Moreover, these HDDs feature a shock sensor that can detect sudden movements, allowing the drive to park its heads to prevent data loss and hardware damage. This is particularly beneficial in mobile environments where the risks of impact are higher.

Both the MHW2040AC and MHW2060AC are designed with energy-saving features, making them an environmentally responsible choice for energy-conscious consumers. Their low power consumption not only contributes to a reduced carbon footprint but also extends battery life for portable devices.

In summary, the Fujitsu MHW2040AC and MHW2060AC are reliable, efficient, and user-friendly hard disk drives that combine moderate capacities with advanced features designed to enhance performance, ensure data integrity, and extend device longevity. These drives are well-suited for a range of applications, making them a solid choice for users seeking dependable storage solutions.