C141-E057-02EN
MHE2064AT, MHE2043AT
MHF2043AT, MHF2021AT
DISK DRIVE
PRODUCT MANUAL
FOR SAFE OPERATION
Handling of This Manual
This manual contains important information for using this product. Read thoroughly before using the product. Use this product only after thoroughly reading and understanding especially the section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully.
FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering damage to their property. Use the product according to this manual.
IMPORTANT NOTE TO USERS
READ THE ENTIRE MANUAL CAREFULLY BEFORE USING THIS PRODUCT. INCORRECT USE OF THE PRODUCT MAY RESULT IN INJURY OR DAMAGE TO USERS, BYSTANDERS OR PROPERTY.
While FUJITSU has sought to ensure the accuracy of all information in this manual, FUJITSU assumes no liability to any party for any damage caused by any error or omission contained in this manual, its updates or supplements, whether such errors or omissions result from negligence, accident, or any other cause. In addition, FUJITSU assumes no liability with respect to the application or use of any product or system in accordance with the descriptions or instructions contained herein; including any liability for incidental or consequential damages arising therefrom. FUJITSU DISCLAIMS ALL WARRANTIES REGARDING THE INFORMATION CONTAINED HEREIN, WHETHER EXPRESSED, IMPLIED, OR STATUTORY.
FUJITSU reserves the right to make changes to any products described herein without further notice and without obligation.
The contents of this manual may be revised without prior notice.
The contents of this manual shall not be disclosed in any way or reproduced in any media without the express written permission of Fujitsu Limited.
All Rights Reserved, Copyright © FUJITSU LIMITED 1998
C141-E057-01EN
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Revision History
(1/1)
Edition |
Date |
Revised section (*1) |
Details |
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(Added/Deleted/Altered) |
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01 |
1998-06-20 |
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02 |
1998-09-10 |
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*1 Section(s) with asterisk (*) refer to the previous edition when those were deleted.
C141-E057-02EN
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This manual describes the MHE Series and MHF Series, 2.5-inch hard disk drives. These drives have a built-in controller that is compatible with the ATA interface.
This manual describes the specifications and functions of the drives and explains in detail how to incorporate the drives into user systems. This manual assumes that the reader has a basic knowledge of hard disk drives and their implementations in computer systems.
This manual consists of seven chapters and sections explaining the special terminology and abbreviations used in this manual:
Overview of Manual
CHAPTER 1 Device Overview
This chapter gives an overview of the MHE Series and MHF Series and describes their features.
CHAPTER 2 Device Configuration
This chapter describes the internal configurations of the MHE Series and MHF Series and the configuration of the systems in which they operate.
CHAPTER 3 Installation Conditions
This chapter describes the external dimensions, installation conditions, and switch settings of the MHE Series and MHF Series.
CHAPTER 4 Theory of Device Operation
This chapter describes the operation theory of the MHE Series and MHF Series.
CHAPTER 5 Interface
This chapter describes the interface specifications of the MHE Series and MHF Series.
CHAPTER 6 Operations
This chapter describes the operations of the MHE Series and MHF Series.
Terminology
This section explains the special terminology used in this manual.
Abbreviation
This section gives the meanings of the definitions used in this manual.
C141-E057-01EN |
i |
Preface
Conventions for Alert Messages
This manual uses the following conventions to show the alert messages. An alert message consists of an alert signal and alert statements. The alert signal consists of an alert symbol and a signal word or just a signal word.
The following are the alert signals and their meanings:
This indicates a hazarous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. This alert signal also indicates that damages to the product or other property, may occur if the user does not perform the procedure correctly.
This indicates information that could help the user use the product more efficiently.
In the text, the alert signal is centered, followed below by the indented message. A wider line space precedes and follows the alert message to show where the alert message begins and ends. The following is an example:
(Example)
Data corruption: Avoid mounting the disk drive near strong magnetic sources such as loud speakers. Ensure that the disk drive is not affected by external magnetic fields.
The main alert messages in the text are also listed in the “Important Alert Items.”
Operating Environment
This product is designed to be used in offices or computer rooms.
For details regarding the operating environment of use, refer to the (Cnnn-Xnnn) and the
(Cnnn-Xnnn).
Attention
Please forward any comments you may have regarding this manual.
To make this manual easier for users to understand, opinions from readers are needed. Please write your opinions or requests on the Comment at the back of this manual and forward it to the address described in the sheet.
ii |
C141-E057-01EN |
Preface
Liability Exception
“Disk drive defects” refers to defects that involve adjustment, repair, or replacement.
Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or mishandling, inappropriate operating environments, defects in the power supply or cable, problems of the host system, or other causes outside the disk drive.
C141-E057-01EN |
iii |
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Important Alert Items
Important Alert Messages
The important alert messages in this manual are as follows:
A hazardous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. Also, damage to the predate or other property, may occur if the user does not perform the procedure correctly.
Task |
Alert message |
Page |
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Normal Operation |
Data corruption: Avoid mounting the disk near strong |
3-7 |
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magnetic soures such as loud speakers. Ensure that the disk |
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drive is not affected by extrnal magnetic fields. |
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Stastic: When handling the device, disconnect the body |
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ground (500 kΩ or greater). Do not touch the printed circuit |
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board, but hold it by the edges. |
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C141-E057-02EN |
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Manual Organization
MHE2064AT, MHE2043AT MHF2043AT, MHF2021AT
DISK DRIVE
PRODUCT MANUAL
(C141-E057)
<This manual>
MHE2064AT, MHE2054AT MHF2043AT, MHF2032AT MHF2021AT
DISK DRIVE
MAINTENANCE MANUAL
(C141-F031)
•Device Overview
•Device Configuration
•Installation Conditions
•Theory of Device Operation
•Interface
•Operations
•Maintenance and Diagnosis
•Removal and Replacement Procedure
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CHAPTER 1 |
Device Overview........................................................................ |
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1-1 |
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1.1 |
Features |
1-2 |
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1.1.1 |
Functions and performance |
1-2 |
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1.1.2 |
Adaptability |
1-2 |
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1.1.3 |
Interface |
1-3 |
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1.2 |
Device Specifications |
1-4 |
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1.2.1 |
Specifications summary 1-4 |
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1.2.2 |
Model and product number |
1-6 |
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1.3 |
Power Requirements |
1-6 |
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1.4 |
Environmental Specifications |
1-8 |
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1.5 |
Acoustic Noise |
1-9 |
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1.6 |
Shock and Vibration |
1-9 |
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1.7 |
Reliability |
1-10 |
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1.8 |
Error Rate |
1-11 |
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1.9 |
Media Defects |
1-11 |
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CHAPTER 2 |
Device Configuration................................................................ |
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2-1 |
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2.1 |
Device Configuration |
2-2 |
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2.2 |
System Configuration |
2-4 |
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2.2.1 |
ATA interface |
2-4 |
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2.2.2 |
1 drive connection |
2-4 |
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2.2.3 |
2 drives connection |
2-4 |
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C141-E057-01EN |
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Contents
CHAPTER 3 Installation Conditions.............................................................. |
3-1 |
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3.1 |
Dimensions |
3-2 |
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3.2 |
Mounting |
3-4 |
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3.3 |
Cable Connections |
3-8 |
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3.3.1 |
Device connector |
3-8 |
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3.3.2 |
Cable connector specifications |
3-9 |
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3.3.3 |
Device connection |
3-9 |
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3.3.4 |
Power supply connector (CN1) |
3-10 |
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3.4 |
Jumper Settings |
3-10 |
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3.4.1 |
Location of setting jumpers 3-10 |
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3.4.2 |
Factory default setting 3-11 |
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3.4.3 |
Master drive-slave drive setting |
3-11 |
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3.4.4 |
CSEL setting |
3-12 |
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CHAPTER 4 Theory of Device Operation...................................................... |
4-1 |
4.1Outline 4-2
4.2Subassemblies 4-2
4.2.1Disk 4-2
4.2.2Head 4-2
4.2.3Spindle 4-3
4.2.4Actuator 4-3
4.2.5 Air filter 4-3
4.3 Circuit Configuration 4-4
4.4 Power-on Sequence 4-6
4.5Self-calibration 4-7
4.5.1 |
Self-calibration contents 4-7 |
4.5.2 |
Execution timing of self-calibration 4-8 |
4.5.3 |
Command processing during self-calibration 4-9 |
4.6 |
Read/write Circuit 4-9 |
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Contents
4.6.1 |
Read/write preamplifier (PreAMP) |
4-9 |
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4.6.2 |
Write circuit |
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4-10 |
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4.6.3 |
Read circuit |
4-12 |
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4.6.4 |
Digital PLL circuit |
4-13 |
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4.7 |
Servo Control |
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4-14 |
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4.7.1 |
Servo control circuit |
4-14 |
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4.7.2 |
Data-surface servo format |
4-18 |
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4.7.3 |
Servo frame format 4-18 |
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4.7.4 |
Actuator motor control |
4-19 |
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4.7.5 |
Spindle motor control |
4-20 |
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CHAPTER 5 Interface ..................................................................................... 5-1 |
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5.1 |
Physical Interface |
5-2 |
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5.1.1 |
Interface signals |
5-2 |
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5.1.2 |
Signal assignment on the connector |
5-3 |
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5.2 |
Logical Interface |
5-6 |
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5.2.1 |
I/O registers |
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5-7 |
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5.2.2 |
Command block registers |
5-8 |
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5.2.3 |
Control block registers |
5-13 |
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5.3 |
Host Commands |
5-13 |
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5.3.1 |
Command code and parameters |
5-14 |
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5.3.2 |
Command descriptions |
5-16 |
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5.3.3 |
Error posting |
5-71 |
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5.4 |
Command Protocol |
5-73 |
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5.4.1 |
Data transferring commands from device to host |
5-73 |
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5.4.2 |
Data transferring commands from host to device |
5-75 |
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5.4.3 |
Commands without data transfer |
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5-77 |
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5.4.4 |
Other commands |
5-78 |
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5.4.5 |
DMA data transfer commands |
5-78 |
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5.5 |
Ultra DMA Feature Set |
5-80 |
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5.5.1 |
Overview |
5-80 |
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Contents
5.5.2 |
Phases of operation 5-81 |
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5.5.2.1 |
Ultra DMA burst initiation phase 5-81 |
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5.5.2.2 |
Data transfer phase |
5-82 |
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5.5.2.3 |
Ultra DMA burst termination phase |
5-82 |
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5.5.3 |
Ultra DMA data in commands |
5-83 |
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5.5.3.1 |
Initiating an Ultra DMA data in burst |
5-83 |
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5.5.3.2 |
The data in transfer |
5-84 |
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5.5.3.3 |
Pausing an Ultra DMA data in burst |
5-84 |
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5.5.3.4 |
Terminating an Ultra DMA data in burst |
5-85 |
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5.5.4 |
Ultra DMA data out commands |
5-88 |
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5.5.4.1 |
Initiating an Ultra DMA data out burst |
5-88 |
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5.5.4.2 |
The data out transfer |
5-88 |
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5.5.4.3 |
Pausing an Ultra DMA data out burst |
5-89 |
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5.5.4.4 |
Terminating an Ultra DMA data out burst |
5-90 |
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5.5.5 |
Ultra DMA CRC rules |
5-92 |
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5.5.6 |
Series termination required for Ultra DMA |
5-94 |
5.6Timing 5-95
5.6.1 |
PIO data transfer 5-95 |
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5.6.2 |
Single word DMA data transfer |
5-97 |
5.6.3 |
Multiword DMA data transfer |
5-98 |
5.6.4 |
Transfer of Ultra DMA data 5-99 |
5.6.4.1 |
Starting of Ultra DMA data In Burst |
5-99 |
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5.6.4.2 |
Ultra DMA data burst timing requirements |
5-100 |
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5.6.4.3 |
Sustained Ultra DMA data in burst |
5-102 |
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5.6.4.4 |
Host pausing an Ultra DMA data in burst |
5-103 |
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5.6.4.5 |
Device terminating an Ultra DMA data in burst |
5-104 |
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5.6.4.6 |
Host terminating an Ultra DMA data in burst |
5-105 |
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5.6.4.7 |
Initiating an Ultra DMA data out burst 5-106 |
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5.6.4.8 |
Sustained Ultra DMA data out burst |
5-107 |
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5.6.4.9 |
Device pausing an Ultra DMA data out burst |
5-108 |
5.6.4.10 Host terminating an Ultra DMA data out burst |
5-109 |
5.6.4.11 Device terminating an Ultra DMA data in burst |
5-110 |
5.6.5 Power-on and reset 5-111 |
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xii |
C141-E057-01EN |
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Contents |
CHAPTER 6 Operations ................................................................................. |
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6-1 |
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6.1 |
Device Response to the Reset |
6-2 |
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6.1.1 |
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Response to power-on |
6-2 |
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6.1.2 |
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Response to hardware reset |
6-4 |
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6.1.3 |
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Response to software reset |
6-5 |
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6.1.4 |
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Response to diagnostic command 6-6 |
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6.2 |
Address Translation |
6-7 |
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6.2.1 |
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Default parameters |
6-7 |
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6.2.2 |
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Logical address 6-8 |
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6.3 |
Power Save |
6-9 |
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6.3.1 |
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Power save mode |
6-9 |
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6.3.2 |
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Power commands |
6-11 |
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6.4 |
Defect Management |
6-11 |
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6.4.1 |
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Spare area |
6-12 |
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6.4.2 |
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Alternating defective sectors |
6-12 |
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6.5 |
Read-Ahead Cache |
6-14 |
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6.5.1 |
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Data buffer configuration |
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6-14 |
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6.5.2 |
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Caching operation |
6-14 |
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6.5.3 |
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Usage of read segment |
6-16 |
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6.5.3.1 |
Mis-hit (no hit) |
6-16 |
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6.5.3.2 |
Sequential read |
6-17 |
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6.5.3.3 Full hit (hit all) |
6-20 |
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6.5.3.4 |
Partially hit |
6-21 |
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6.6 |
Write Cache |
6-22 |
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Glossary ................................................................................................. |
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GL-1 |
Acronyms and Abbreviations ........................................................................ |
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AB-1 |
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Index ................................................................................................... |
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IN-1 |
C141-E057-01EN |
xiii |
Contents
Figures
Figure 1.1 |
Current fluctuation (Typ.) at +5V when power is turned on |
1-7 |
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Figure 2.1 |
Disk drive outerview (the MHE Series and MHF Series) |
2-2 |
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Figure 2.2 |
Configuration of disk media heads |
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2-3 |
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Figure 2.3 |
1 drive system configuration |
2-4 |
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Figure 2.4 |
2 drives configuration |
2-4 |
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Figure 3.1 |
Dimensions (MHE/MHF series) |
3-2 |
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Figure 3.2 |
Orientation (Sample: MHE2064AT) |
3-4 |
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Figure 3.3 |
Mounting frame structure 3-5 |
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Figure 3.4 |
Surface temperature measurement points (Sample: MHE2064AT) |
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3-6 |
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Figure 3.5 |
Service area (Sample: MHE2064AT) |
3-7 |
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Figure 3.6 |
Connector locations (Sample: MHE2064AT) |
3-8 |
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Figure 3.7 |
Cable connections 3-9 |
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Figure 3.8 |
Power supply connector pins (CN1) |
3-10 |
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Figure 3.9 |
Jumper location |
3-10 |
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Figure 3.10 |
Factory default setting |
3-11 |
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Figure 3.11 |
Jumper setting of master or slave device |
3-11 |
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Figure 3.12 |
CSEL setting |
3-12 |
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Figure 3.13 |
Example (1) of Cable Select |
3-12 |
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Figure 3.14 |
Example (2) of Cable Select |
3-13 |
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Figure 4.1 |
Head structure |
4-3 |
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Figure 4.2 |
Circuit Configuration |
4-5 |
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Figure 4.3 |
Power-on operation sequence |
4-7 |
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Figure 4.4 |
Read/write circuit block diagram |
4-11 |
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Figure 4.5 |
Frequency characteristic of programmable filter |
4-12 |
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Figure 4.6 |
Block diagram of servo control circuit |
4-14 |
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Figure 4.7 |
Physical sector servo configuration on disk surface |
4-16 |
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Figure 4.8 |
Servo frame format |
4-18 |
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Figure 5.1 |
Interface signals |
5-2 |
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Figure 5.2 |
Execution example of READ MULTIPLE command |
5-20 |
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Figure 5.3 |
Read Sector(s) command protocol |
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5-74 |
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Figure 5.4 |
Protocol for command abort |
5-75 |
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Contents |
Figure 5.5 |
WRITE SECTOR(S) command protocol |
5-76 |
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Figure 5.6 |
Protocol for the command execution without data transfer 5- |
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78 |
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Figure 5.7 |
Normal DMA data transfer |
5-79 |
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Figure 5.8 |
An example of generation of parallel CRC |
5-93 |
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Figure 5.9 |
Ultra DMA termination with pull-up or pull-down |
5-94 |
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Figure 5.10 |
Data transfer timing 5-96 |
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Figure 5.11 |
Single word DMA data transfer timing (mode 2) |
5-97 |
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Figure 5.12 |
Multiword DMA data transfer timing (mode 2) |
5-98 |
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Figure 5.13 |
Starting of Ultra DMA data In Burst transfer |
5-99 |
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Figure 5.14 |
Sustained Ultra DMA data in burst |
5-102 |
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Figure 5.15 |
Host pausing an Ultra DMA data in burst |
5-103 |
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Figure 5.16 |
Device terminating an Ultra DMA data in burst |
5-104 |
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Figure 5.17 |
Host terminating an Ultra DMA data in burst |
5-105 |
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Figure 5.18 |
Initiating an Ultra DMA data out burst 5-106 |
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Figure 5.19 |
Sustained Ultra DMA data out burst |
5-107 |
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Figure 5.20 |
Device pausing an Ultra DMA data out burst |
5-108 |
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Figure 5.21 |
Host terminating an Ultra DMA data out burst |
5-109 |
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Figure 5.22 |
Device terminating an Ultra DMA data out burst |
5-110 |
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Figure 5.23 |
Power on Reset Timing |
5-111 |
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Figure 6.1 |
Response to power-on |
6-3 |
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Figure 6.2 |
Response to hardware reset |
6-4 |
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Figure 6.3 |
Response to software reset |
6-5 |
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Figure 6.4 |
Response to diagnostic command |
6-6 |
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Figure 6.5 |
Address translation (example in CHS mode) |
6-8 |
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Figure 6.6 |
Address translation (example in LBA mode) |
6-9 |
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Figure 6.7 |
Sector slip processing |
6-12 |
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Figure 6.8 |
Alternate cylinder assignment |
6-13 |
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Figure 6.9 |
Data buffer configuration 6-14 |
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Tables
Table 1.1 |
Specifications (MHE2064AT/MHE2043AT) |
1-4 |
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Table 1.2 |
Specifications (MHF2043AT/MHF2021AT) |
1-5 |
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Table 1.3 |
Specifications (MHE2064AT/2043AT/MHF2043AT/2021AT) |
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1-6 |
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Table 1.4 |
Model names and product numbers |
1-6 |
|
|
Table 1.5 |
Current and power dissipation |
1-7 |
|
|
Table 1.6 |
Environmental specifications |
1-8 |
|
|
Table 1.7 |
Acoustic noise specification |
1-9 |
|
|
Table 1.8 |
Shock and vibration specification |
1-9 |
|
C141-E057-02EN |
xv |
Contents
Table 3.1 |
Surface temperature measurement points and standard values |
||||||
|
3-6 |
|
|
|
|
|
|
Table 3.2 |
Cable connector specifications |
3-9 |
|
|
|
||
Table 4.1 |
Self-calibration execution timechart |
4-9 |
|
|
|
||
Table 4.2 |
Write precompensation algorithm |
4-10 |
|
|
|
||
Table 5.1 |
Signal assignment on the interface connector |
5-3 |
|
||||
Table 5.2 |
I/O registers 5-7 |
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|
|
|
|
Table 5.3 |
Command code and parameters |
5-14 |
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||
Table 5.4 |
Information to be read by IDENTIFY DEVICE command |
5- |
|||||
|
32 |
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Table 5.5 |
Features register values and settable modes |
5-39 |
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|
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Table 5.6 |
Diagnostic code |
5-46 |
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|
Table 5.7 |
Features Register values (subcommands) and functions |
5-57 |
|||||
Table 5.8 |
Format of device attribute value data |
5-59 |
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|
||
Table 5.9 |
Format of insurance failure threshold value data |
5-60 |
|
||||
Table 5.10 |
Contents of security password |
5-64 |
|
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|
||
Table 5.11 |
Contents of SECURITY SET PASSWORD data |
5-68 |
|
||||
Table 5.12 |
Relationship between combination of Identifier and Security |
||||||
|
level, and operation of the lock function 5-69 |
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||||
Table 5.13 |
Command code and parameters |
5-71 |
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||
Table 5.14 |
Parallel generation equation of CRC polynomial |
5-93 |
|
||||
Table 5.15 |
Recommended series termination for Ultra DMA |
5-94 |
|
||||
Table 5.16 |
Ultra DMA data burst timing requirements |
5-100 |
|
||||
Table 6.1 |
Default parameters |
6-7 |
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|
xvi |
C141-E057-01EN |
1.1Features
1.2Device Specifications
1.3Power Requirements
1.4Environmental Specifications
1.5Acoustic Noise
1.6Shock and Vibration
1.7Reliability
1.8Error Rate
1.9Media Defects
Overview and features are described in this chapter, and specifications and power requirement are described.
The MHE Series and MHF Series are 2.5-inch hard disk drives with built-in disk controllers. These disk drives use the AT-bus hard disk interface protocol and are compact and reliable.
C141-E057-01EN |
1-1 |
Device Overview
The fillowing features of the MHE Series and MHF Series are described.
(1) Compact
The MHE2064AT and MHE2043AT have 3 disks, and its height is 12.5 mm (0.492 inch). The MHF2043AT and MHF2021AT have 1 disk or 2 disks of 65
mm(2.5 inches) diameter, and its height is 9.5 mm (0.374 inch).
(2)Large capacity
The disk drive can record up to 2.16 GB (formatted) on one disk using the (16/17) EPR4ML recording method and 14 recording zone technology. The MHE Series and MHF Series have a formatted capacity of 6.49 GB (MHE2064AT), 4.32 GB (MHE2043AT), 4.32 GB (MHF2043AT), 2.16 GB (MHF2021AT) respectively.
(3) High-speed Transfer rate
The disk drives (the MHE Series and MHF Series) have an internal data rate up to 13.6 MB/s. The disk drive supports an external data rate up to 33.3 MB/s (U- DMA mode 2).
(4) Average positioning time
Use of a rotary voice coil motor in the head positioning mechanism greatly increases the positioning speed. The average positioning time is 13 ms (at read).
(1) Power save mode
The power save mode feature for idle operation, stand by and sleep modes makes The disk drives (the MHE Series and MHF Series) ideal for applications where power consumption is a factor.
(2) Wide temperature range
The disk drives (the MHE Series and MHF Series) can be used over a wide temperature range (5°C to 55°C).
(3) Low noise and vibration
In Ready status, the noise of the disk drives (the MHE Series and MHF Series) is only about 30 dBA (measured at 1 m apart from the drive under the idle mode).
1-2 |
C141-E057-02EN |
1.1 Features
(1) Connection to interface
With the built-in ATA interface controller, the disk drives (the MHE Series and MHF Series) can be connected to an ATA interface of a personal computer.
(2) 512-KB data buffer
The disk drives (the MHE Series and MHF Series) uses a 512-KB data buffer to transfer data between the host and the disk media.
In combination with the read-ahead cache system described in item (3) and the write cache described in item (7), the buffer contributes to efficient I/O processing.
(3) Read-ahead cache system
After the execution of a disk read command, the disk drive automatically reads the subsequent data block and writes it to the data buffer (read ahead operation). This cache system enables fast data access. The next disk read command would normally cause another disk access. But, if the read ahead data corresponds to the data requested by the next read command, the data in the buffer can be transferred instead.
(4) Master/slave
The disk drives (the MHE Series and MHF Series) can be connected to ATA interface as daisy chain configuration. Drive 0 is a master device, drive 1 is a slave device.
(5) Error correction and retry by ECC
If a recoverable error occurs, the disk drives (the MHE Series and MHF Series) themselves attempt error recovery. The ECC has improved buffer error correction for correctable data errors.
(6) Self-diagnosis
The disk drives (the MHE Series and MHF Series) have a diagnostic function to check operation of the controller and disk drives. Executing the diagnostic command invokes self-diagnosis.
(7) Write cache
When the disk drives (the MHE Series and MHF Series) receive a write command, the disk drives post the command completion at completion of transferring data to the data buffer completion of writing to the disk media. This feature reduces the access time at writing.
C141-E057-01EN |
1-3 |
Device Overview
Table 1.1 shows the specfications of the disk drives (MHE2064AT/MHE2043AT).
|
Table 1.1 |
Specifications (MHE2064AT/MHE2043AT) |
||
|
|
|
|
|
|
|
|
MHE2064AT |
MHE2043AT |
|
|
|
|
|
Format Capacity (*1) |
|
6.49 GB |
4.32 GB |
|
|
|
|
|
|
Number of Heads |
|
6 |
4 |
|
|
|
|
|
|
Number of Cylinders (User) |
|
8,647 |
||
|
|
|
||
Bytes per Sector |
|
512 |
||
|
|
|
||
Recording Method |
|
(16/17) EPR4ML |
||
|
|
|
||
Track Density |
|
14,200 TPI |
||
|
|
|
||
Bit Density |
|
237.8 Kbpi |
||
|
|
|
||
Rotational Speed |
|
4,200 rpm ± 1% |
||
|
|
|
||
Average Latency |
|
7.14 ms |
||
|
|
|
|
|
Positioning time (read and seek) |
|
|
|
|
• Minimum (Track to Track) |
|
1.5 ms (typ.) |
||
• |
Average |
|
Read: 13 ms (typ.) |
|
• |
Maximum (Full) |
|
23 ms (typ.) |
|
|
|
|
|
|
Start/Stop time |
|
|
|
|
• Start (0 rpm to Drive Read) |
|
Typ.: |
5 sec |
|
• Stop (at Power Down) |
|
Typ.: |
5 sec |
|
|
|
|
||
Interface |
|
ATA-4 (Max. Cable length: 0.46 m) |
||
|
|
|
|
|
Data Transfer Rate |
|
|
|
|
• |
To/From Media |
|
7.7 to 13.6 MB/s |
|
|
|
|
|
|
• |
To/From Host |
|
33.3 MB/s Max. |
|
|
|
|
(U-DMA mode 2) |
|
|
|
|
||
Data Buffer Size |
|
512 KB |
||
|
|
|
|
|
Physical Dimensions |
|
12.5 mm × 100.0 mm ×70.0 mm |
||
(Height × Width × Depth) |
|
|||
|
|
|
||
|
|
|
||
Weight |
|
145 g |
||
|
|
|
|
|
1-4 |
C141-E057-02EN |
|
|
|
|
|
1.2 |
Device Specifications |
|
|
|
Table 1.2 shows the specfications of the disk drives (MHF2043AT/MHF2021AT). |
|||||
|
|
Table 1.2 |
Specifications (MHF2043AT/MHF2021AT) |
||||
|
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|
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|
|
|
MHF2043AT |
MHF2021AT |
|
|
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|
|
|
|
|
|
|
Format Capacity (*1) |
|
4.32 GB |
|
2.16 GB |
|
|
|
|
|
|
|
|
|
|
|
Number of Heads |
|
4 |
|
2 |
|
|
|
|
|
|
|
|
|
|
|
Number of Cylinders (User) |
|
8,647 |
|
|
||
|
|
|
|
|
|
||
|
Bytes per Sector |
|
512 |
|
|
||
|
|
|
|
|
|
||
|
Recording Method |
|
(16/17) EPR4ML |
|
|
||
|
|
|
|
|
|
||
|
Track Density |
|
14,200 TPI |
|
|
||
|
|
|
|
|
|
||
|
Bit Density |
|
237.8 Kbpi |
|
|
||
|
|
|
|
|
|
||
|
Rotational Speed |
|
4,200 rpm ± 1% |
|
|
||
|
|
|
|
|
|
||
|
Average Latency |
|
7.14 ms |
|
|
||
|
|
|
|
|
|
|
|
|
Positioning time (read and seek) |
|
|
|
|
|
|
|
• Minimum (Track to Track) |
|
1.5 ms (typ.) |
|
|
||
|
• |
Average |
|
Read: 13 ms (typ.) |
|
|
|
|
• |
Maximum (Full) |
|
23 ms (typ.) |
|
|
|
|
|
|
|
|
|
|
|
|
Start/Stop time |
|
|
|
|
|
|
|
• Start (0 rpm to Drive Read) |
|
Typ.: |
5 sec |
|
|
|
|
• Stop (at Power Down) |
|
Typ.: |
5 sec |
|
|
|
|
|
|
|
|
|
||
|
Interface |
|
ATA-4 (Max. Cable length: |
0.46 m) |
|
||
|
|
|
|
|
|
|
|
|
Data Transfer Rate |
|
|
|
|
|
|
|
• |
To/From Media |
|
7.7 to 13.6 MB/s |
|
|
|
|
|
|
|
|
|
|
|
|
• |
To/From Host |
|
33.3 MB/s Max. |
|
|
|
|
|
|
|
(U-DMA mode 2) |
|
|
|
|
|
|
|
|
|
||
|
Data Buffer Size |
|
512 KB |
|
|
||
|
|
|
|
|
|||
|
Physical Dimensions |
|
9.5 mm × 100.0 mm × 70.0 mm |
|
|||
|
(Height × Width × Depth) |
|
|
|
|
|
|
|
|
|
|
|
|
||
|
Weight |
|
98 g |
|
|
||
|
|
|
|
|
|
|
|
*1: Capacity under the LBA mode.
C141-E057-02EN |
1-5 |
Device Overview
Under the CHS mode (normal BIOS specification), formatted capacity, number of cylinders, number of heads, and number of sectors are as follows.
Table 1.3 Specifications (MHE2064AT/2043AT/MHF2043AT/2021AT)
Model |
Formatted Capacity |
No. of Cylinder |
No. of Heads |
No. of Sectors |
|
|
|
|
|
MHE2064AT |
6,495.06 MB |
13,424 |
15 |
63 |
|
|
|
|
|
MHE2043AT |
4,327.46 MB |
8,944 |
15 |
63 |
|
|
|
|
|
MHF2043AT |
4,327.46 MB |
8,944 |
15 |
63 |
|
|
|
|
|
MHF2021AT |
2,167.60 MB |
4,200 |
16 |
63 |
|
|
|
|
|
Table 1.4 lists the model names and product numbers of the MHE Series and MHF Series.
Table 1.4 Model names and product numbers
Model Name |
Capacity |
Mounting screw |
Order No. |
|
(user area) |
|
|
|
|
|
|
MHE2064AT |
6.49 GB |
M3, depth 3 |
CA01757-B060 |
|
|
|
|
MHE2043AT |
4.32 GB |
M3, depth 3 |
CA01757-B040 |
|
|
|
|
MHF2043AT |
4.32 GB |
M3, depth 3 |
CA01758-B040 |
|
|
|
|
MHF2021AT |
2.16 GB |
M3, depth 3 |
CA01758-B020 |
|
|
|
|
(1) Input Voltage
∙ + 5 V ± 5 %
(2) Ripple
|
+5 V |
|
|
Maximum |
100 mV (peak to peak) |
|
|
Frequency |
DC to 1 MHz |
|
|
1-6 |
C141-E057-02EN |
|
|
|
|
1.3 |
Power Requirements |
||
(3) Current Requirements and Power Dissipation |
|
|
|
|
|||
|
Table 1.5 lists the current and power dissipation. |
|
|
||||
|
|
Table 1.5 Current and power dissipation |
|
|
|||
|
|
|
|
|
|
|
|
|
|
Typical RMS Current |
Typical Power (*3) |
|
|||
|
|
|
|
|
|
|
|
|
|
MHE Series |
MHF Series |
MHE Series |
|
MHF Series |
|
|
|
|
|
|
|
|
|
|
Spin up (*1) |
0.9 A |
0.9 A |
4.5 W |
|
4.5 W |
|
|
|
|
|
|
|
|
|
|
Idle |
190 mA |
190 mA |
0.95 W |
|
0.95 W |
|
|
|
|
|
|
|
|
|
|
R/W (*2) |
430 mA |
430 mA |
2.15 W |
|
2.15 W |
|
|
|
|
|
|
|
|
|
|
Standby |
70 mA |
70 mA |
0.35 W |
|
0.35 W |
|
|
|
|
|
|
|
|
|
|
Sleep |
26 mA |
26 mA |
0.13 W |
|
0.13 W |
|
|
|
|
|
|
|
|
|
|
Energy |
— |
— |
0.0001 W/MB |
|
0.0004 W/MB |
|
|
Consumption |
|
|
|
|
|
|
|
Efficiency (*4) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
*1 Current at starting spindle motor.
*2 Power requirements reflect nominal values for +5V power.
*3 At 30% disk accessing.
*4 Energy Consumption Efficiency =
Idle power dissipation / Total record capacity (MB)
(4) Current fluctuation (Typ.) at +5V when power is turned on
Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on
C141-E057-01EN |
1-7 |
Device Overview
(5) Power on/off sequence
The voltage detector circuits (the MHE Series and MHF Series) monitor +5 V. The circuits do not allow a write signal if either voltage is abnormal. These prevent data from being destroyed and eliminates the need to be concerned with the power on/off sequence.
Table 1.6 lists the environmental specifications.
|
Table 1.6 |
Environmental specifications |
|
|
|
|
|
Item |
|
|
Specification |
|
|
|
|
Temperature |
|
|
|
• |
Operating |
|
5°C to 55°C (ambient) |
|
|
|
5°C to 60°C (disk enclosure surface) |
• |
Non-operating |
|
–40°C to 65°C |
• |
Thermal Gradient |
|
20°C/h or less |
|
|
|
|
Humidity |
|
|
|
• |
Operating |
|
8% to 90% RH (Non-condensing) |
• |
Non-operating |
|
5% to 95% RH (Non-condensing) |
• |
Maximum Wet Bulb |
|
29°C |
|
|
|
|
Altitude (relative to sea level) |
|
|
|
• |
Operating |
|
–300 to 3,000 m |
• |
Non-operating |
|
–300 to 12,000 m |
|
|
|
|
1-8 |
C141-E057-01EN |
Table 1.7 lists the acoustic noise specification.
Table 1.7 Acoustic noise specification
Item |
Specification |
|
|
Sound Pressure |
|
• Idle mode (DRIVE READY) |
30 dBA typical at 1 m |
|
|
Note:
Measure the noise from the cover top surface.
1.6 |
Shock and Vibration |
|
|
Table 1.8 lists the shock and vibration specification. |
|
|
Table 1.8 Shock and vibration specification |
|
|
|
|
Item |
|
Specification |
|
|
|
Vibration (swept sine, one octave per minute) |
|
|
• |
Operating |
5 to 500 Hz, 1.0G0-peak (MHE series) |
|
|
5 to 400 Hz, 1.0G0-peak (MHF series) |
|
|
(without non-recovered errors) (9.8 m/s2 0-peak) |
• |
Non-operating |
5 to 500 Hz, 5G0-peak (MHE series) |
|
|
5 to 400 Hz, 5G0-peak (MHF series) |
|
|
(no damage) (49 m/s2 0-peak) |
|
|
|
Shock (half-sine pulse) |
|
|
• |
Operating |
125G0-peak |
|
|
(without non-recovered errors) (1,225 m/s2 0-peak) |
• |
Non-operating |
600G0-peak (MHE series) (5,880 m/s2 0-peak) |
|
|
2 ms duration |
|
|
600G0-peak (MHF series) (5,880 m/s2 0-peak) |
|
|
1 ms duration (no damage) |
|
|
|
C141-E057-02EN |
1-9 |