Surface temperature measurement

Index

specification summary		1-4
spindle		4-2
spindle motor		2-2
spindle motor control		4-19
spindle motor control circuit		4-13
spindle motor driver circuit		4-3
stable rotation mode		4-19
STANDBY	5-36, 6-9
STANDBY command		6-8
STANDBY IMMEDIATE	5-33, 6-9
STANDBY IMMEDIATE command		....... 6-8
standby mode		6-8
start mode		4-19
status		5-54
status flag		5-48
status register		5-11
status report in event of error		6-19
subassembly		4-2
surface temperature measurement
point		3-5
sustained ultra DMA data
in burst		5-155
sustained Ultra DMA data
out burst		5-160
system configuration		2-3
T
terminating ultra DMA data
in burst		5-140
out burst		5-145
test span		5-56
the data
in transfer		5-139
out transfer		5-144
theory of device operation		4-1
timing		5-149
total number of drive error		5-54
track following operation		4-18
track slip processing		6-10

U
ultra DMA CRC rule	5-147
ultra DMA data
in command	5-138
out command	5-143
ultra DMA data burst timing
requirement	5-152
ultra DMA data transfer	5-151
ultra DMA feature set	5-137
ultra DMA sender and recipient
timing requirement	5-154
ultra DMA termination with pull-up
or pull-down	5-148
unload feature	5-34
UNLOAD IMMEDIATE	5-34
unrecoverable read error	1-13
using read segment buffer	6-15
V
VCM current sense resistor (CSR)	4-14
viterbi detection circuit	4-11
W
wide temperature range	1-2
WRITE BUFFER	5-75
write cache	1-4, 6-18
write circuit	4-9
WRITE DMA	5-71
WRITE DMA EXT	5-117
WRITE DMA FUA EXT	5-121
WRITE LOG EXT	5-122
WRITE MULTIPLE	5-65
WRITE MULTIPLE EXT	5-120
WRITE MULTIPLE FUA EXT	5-125
write precompensation	4-9
WRITE SECTOR(S)	5-23
WRITE SECTOR(S) command
protocol	5-133
WRITE SECTOR(S) EXT	5-116
WRITE VERIFY	5-25
write/read recovery	4-17

C141-E258

IN-5

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.

Fujitsu MHW2040AC, MHW2060AC manual Surface temperature measurement

Models: MHW2060AC MHW2040AC

Index

STANDBY IMMEDIATE command

5-152

UNLOAD IMMEDIATE

MHW2060AC, MHW2040AC specifications