Maxtor D540X-4K manual Basic Principles of Operation

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The flex circuit connects the headstack assembly to the PCB through a compression connector. The flex circuit contains a read preamplifier/write driver IC.

Basic Principles of Operation

￿￿￿￿￿*GCFUVCEMThe headstack￿#UUGODN[assembly consists of read/write heads, head arms, and a coil joined together by insertion molding to form a rotor subassembly, bearings, and a flex circuit. Read/write heads mounted to spring-steel flexures are swage mounted onto the rotary positioner assembly arms.

￿￿￿￿￿4QVCT[The￿rotary2QUKVKQPGTpositioner,￿#UUGODN[or rotary voice-coil actuator, is a Maxtor-proprietary design that consists of upper and lower permanent magnet plates, a rotary single-phase coil molded around the headstack mounting hub, and a bearing shaft. The single bi-polar magnet consists of two alternating poles and is bonded to the magnet plate. A resilient crash stop prevents the heads from being driven into the spindle or off the disk surface.

Current from the power amplifier induces a magnetic field in the voice coil. Fluctuations in the field around the permanent magnet cause the voice coil to move. The movement of the voice coil positions the heads over the requested cylinder.

￿￿￿￿￿#WVQOCVKETo ensure￿#EVWCVQTdata integrity￿.QEMand prevent damage during shipment, the drive uses a dedicated landing zone, an actuator magnetic retract, and Maxtor’s patented Airlock . The Airlock holds the headstack in the landing zone whenever the disks are not ® rotating. It consists of an air vane mounted near the perimeter of the disk stack, and a locking arm that restrains the actuator arm assembly.

When DC power is applied to the motor and the disk stack rotates, the rotation generates an airflow on the surface of the disk. As the flow of air across the air vane increases with disk rotation, the locking arm pivots away from the actuator arm, enabling the headstack to move out of the landing zone. When DC power is removed from the motor, an electronic return mechanism automatically pulls the actuator into the landing zone, where the magnetic actuator retract force holds it until the Airlock closes and latches it in place.

5-4 Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT

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Contents CZVQT&-2TQFWEV/CPWCN$#6 UL/CSA/VDE/TUV Cottonwood Drive Milpitas, California Tel Fax Miller Drive Longmont, Colorado Tel FaxPage Combination Connector J1 Terminology and ConventionsHardware Requirements Unpacking InstructionsTechniques in Drive Configuration System Startup and OperationEnvironmental Conditions Shock and Vibration Handling the DriveSmart Read Attribute Thresholds EndecMaxtor D540X-4K AT Hard Disk Drive Block Diagram Accessing the SET Configuration Without KUVQH6CDNGU3-5Table of Contents Asic InstallationApplication-specific integrated circuit ATA DPSSPS ECCMaxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT About This Manual Standards With the ATA interfaceHigh-reliability drives D540X-4K drives an attractive choice for most CE usersGeneral Description General Description General Description Kiwtg Remove the drive from the packing assembly InstallationKiwtg Kiwtg X2+0 Installation =16,383#% ,7/24 To the adapter board Kiwtg Following subsectionsMaxtorKIWTGD540X%#76+10-4K 20.4/40.0/60.0/80.0 GB AT Minimum of 1.25 mm 0.05 inches At any point along the drive form factor envelope07/$4 You need a third-party IDE-compatible adapter board Drive Power Supply and ATA Bus Interface Cables Kiwtg Installation Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT LogicalAddressingFormat Capacity&5%4+26+10 Ms $ #6 +10 4idle spin Down6CDNG$# /#614&$#-$#6$#6 ChapterMand Spindown Time, Power loss Nominal conditions are as follows+5 V &%81.6# 1700 &KUM $ 124#Bel = 10dBA 6CDNG 6CDNG Specifications 6CDNG 4414#76+10 Hard Disk Drive Exploded View 6145 # 4# 3680481.78 System Data 400Basic Principles of Operation Maxtor D540X-4K AT Hard Disk Drive Block Diagram TTQTfirmware%QTTGEVKQP. %QFG%%%QPVTQN On the drive Endec PLLBasic Principles of Operation Basic Principles of Operation Latency time and thus increases data throughput Head Skew Switch time is calculated on the basis of the normal wedge= Head number TS = Head Skew Offset 0QVG Basic Principles of Operation Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT ATA Bus Interface and ATA Commands Download Microcode NOP Read Buffer Write BufferRead DMA Write DMA ATA Bus Interface and ATA Commands 6CDNG ATA Bus Interface and ATA Commands ATA Bus Interface and ATA Commands Read Defect List Read Configuration SET Configuration 6CDNGSector4+564 Sector Variable Length in Sectors Number 6CDNG Bytes 4 7 will be set to FFh for bad track entriesCommand6CDNG 0QVG KEY$+6 All fields marked Reserved or N/A should be set to zeroATA Bus Interface and ATA Commands #46COMMAND4#&CODE#664+-$B0h766*45*1.&5 $VGUQTOCV 2 binary $VGU1 #46COMMAND46740CODE56#675- B0h Sector4GIKUVGT Number na 4GIKUVGT Features ATA Bus Interface and ATA Commands Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT G-1 More hard disks, usually installed in a slot in the computer Maxtor D540X-4K 20.0/40.0/60.0/80.0 GB AT G-3 Glossary Maxtor D540X-4K 20.0/40.0/60.0/80.0 GB AT G-5 Glossary Maxtor D540X-4K 20.0/40.0/60.0/80.0 GB AT G-7 Glossary Hardware*options 3-4headstack assembly 5-5Humidity Low-level format $tampering with the HDA 5-1temperature Index

D540X-4K specifications

The Maxtor D540X-4K is a notable hard disk drive that has made its mark in the world of computer storage solutions. Launched in the early 2000s, this drive was known for its high capacity and reliable performance, making it a popular choice among consumers and businesses alike.

One of the main features of the D540X-4K is its generous storage capacity. With a range of models available, users could select from configurations starting at 40GB to larger sizes, accommodating a wide variety of storage needs. This capacity was particularly advantageous during an era when digital media was rapidly expanding, allowing users to store everything from documents and photos to videos and applications without running out of space.

The D540X-4K utilizes an IDE (Integrated Drive Electronics) interface, also known as PATA (Parallel ATA), which ensures compatibility with a broad spectrum of computers. This interface was standard at the time, making the drive accessible to a wide user base. The drive also supports ATA-100, providing data transfer rates of up to 100 MB/s, which was impressive for its time.

In terms of performance, the drive operates at a speed of 5400 RPM, which, while not the fastest in comparison to modern solid-state drives, provided a suitable balance of speed and efficiency for the average user’s needs. This rotational speed ensured decent read and write times for everyday applications, making it a reliable option for personal computing.

Another characteristic of the D540X-4K is its advanced data protection features. The drive was equipped with Maxtor's unique Shock Protection Technology, which helps protect the drive’s internal components from damage due to shocks or drops. This feature contributed to increased reliability, especially for users in mobile or high-traffic environments.

The Maxtor D540X-4K also incorporates a Cache Buffer, which enhances performance by temporarily storing frequently accessed data. The cache sizes varied across models, with options of 2MB or more, aiding in quicker data retrieval and overall improved system responsiveness.

In summary, the Maxtor D540X-4K is a hard drive that stands out for its storage capacity, compatibility, and protective features. Even today, it serves as a reminder of the evolution of data storage technologies, as it laid the groundwork for the high-capacity drives we utilize in modern computing. Its legacy continues to influence new technologies while reflecting the needs of the early digital era.
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