Seagate MARATHON 1680 Product Manual
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Seagate MARATHON 1680 Product Manual

Seagate MARATHON 1680 Product Manual

Ata interface drives
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Marathon 2250
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Marathon 1680
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ATA Interface Drives
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Summary of Contents for Seagate MARATHON 1680

  • Page 1 ..Marathon 1680 ........
  • Page 3 ..Marathon 1680 (ST91685AG) ........
  • Page 4 Seagate Technology. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc.

  • Page 5: Table Of Contents

    Marathon 2250 and Marathon 1680 Product Manual Contents Introduction ......1 Specification summary table ....2 1.0 Drive specifications .
  • Page 6 Marathon 2250 and Marathon 1680 Product Manual 1.11.2 Electromagnetic Compatibility ... . 15 1.11.3 FCC verification ....15 2.0 Drive mounting and configuration .
  • Page 7 Marathon 2250 and Marathon 1680 Product Manual Figures Figure 1. Typical startup and operation current profile..9 Figure 2. Connector and master/slave jumper setup ..18 Figure 3.
  • Page 8 Marathon 2250 and Marathon 1680 Product Manual...

  • Page 9: Introduction

    Marathon 2250 and Marathon 1680 Product Manual Introduction The Marathon 2250 (ST92255AG) and Marathon 1680 (ST91685AG) provide very high storage capacity in a small, 17-mm hard disc drive. Key Features: Low power consumption Compact, SFF-8200-compatible form-factor High rotational speed for fast internal data transfer...

  • Page 10: Specification Summary Table

    Marathon 2250 and Marathon 1680 Product Manual Specification summary table The specifications listed in this table are for quick reference. For details on a specification measurement or definition, see the appropriate section of this manual. Marathon Marathon Drive Specification 2250...
  • Page 11 Marathon 2250 and Marathon 1680 Product Manual Marathon Marathon Drive Specification 2250 1680 Power-on to ready (sec typical) Standby to ready (sec typical) Spinup current (peak) 1.3 amps Read/Write power and current (typical) 2.5 watts, 0.5 amps Seek power and current (typical) 2.5 watts, 0.5 amps...
  • Page 12 Marathon 2250 and Marathon 1680 Product Manual...

  • Page 13: Drive Specifications

    2.1 Gbytes (more than 4,096 cylinders) on a single partition. If you encounter this problem with the ST92255AG, divide the drive into two partitions or upgrade your BIOS. Please contact your Seagate representative for additional information. 1.1.1 Default logical geometry...

  • Page 14: Physical Organization

    Marathon 2250 and Marathon 1680 Product Manual The Marathon 1680 supports any translation geometry that satisfies all of the following conditions: Sectors per track Read/write heads (Sectors per track) (read/write heads) (cylinders) 3,282,048 1.2 Physical organization Marathon 2250 Marathon 1680...

  • Page 15: Physical Characteristics

    Marathon 2250 and Marathon 1680 Product Manual 1.4 Physical characteristics Marathon 2250 Marathon 1680 Maximum height (inches) 0.676 0.676 (mm) (17.2) (17.2) Maximum width (inches) 2.76 2.76 (mm) (70.1) (70.1) Maximum length (inches) 3.955 3.955 (mm) (100.45) (100.45) Typical weight (ounces) 7.19...

  • Page 16: Start Times

    Marathon 2250 and Marathon 1680 Product Manual 1.6 Start times Power-on to Ready (sec) 3.5 typical, 7 max Standby to Ready (sec) 2 typical, 3 max Idle to Ready (sec) 0.4 max 1.7 Power specifications The drive receives DC power (+5V) through pin 41 and pin 42 of the AT interface connector.

  • Page 17: Power Recovery

    Marathon 2250 and Marathon 1680 Product Manual Current (mA) 1,400 Drive ready 1,200 1,000 Upload code Idle Standby mode Active mode Sleep mode mode Spinup Time (seconds) Figure 1. Typical startup and operation current profile 1.7.1.1 Typical current profile Figure 1 shows a projected drive startup and operation current profile for the Marathon 2250 and the Marathon 1680.

  • Page 18: Voltage Tolerance

    Marathon 2250 and Marathon 1680 Product Manual 100 mV peak-to-peak triangular-wave injected noise at the power connector. The frequency is 100 KHz to 10 MHz with equivalent resistive loads. Note. Equivalent resistance (9.26 ohms) is calculated by dividing the nominal voltage (5V) by the typical RMS read/write current (0.54 amps).
  • Page 19 Marathon 2250 and Marathon 1680 Product Manual When the standby timer expires, the drive makes the transition to the Standby mode. The drive requires approximately 100–200 msec to return to Active mode from Idle mode. Standby mode. The drive enters Standby mode when the host sends a Standby or Standby Immediate command.

  • Page 20: Environmental Tolerances

    Marathon 2250 and Marathon 1680 Product Manual 1.8 Environmental tolerances 1.8.1 Ambient temperature Operating 5° to 55°C (41° to 131°F) Nonoperating –40° to 70°C (–40° to 158°F) Caution. This drive needs sufficient airflow so that the maximum surface temperature at the center of the top cover of the drive does not exceed 62 degrees C (144 degrees F).

  • Page 21: Vibration

    Track 0. 1.8.5.1 Operating shock The Marathon 2250 and the Marathon 1680 incorporate SafeRite shock protection and can withstand a maximum operating shock of 125 Gs without nonrecoverable data errors (based on half-sine shock pulses of 2 msec).

  • Page 22: Drive Acoustics

    Marathon 2250 and Marathon 1680 Product Manual 1.8.6.2 Nonoperating vibration The following table lists the maximum nonoperating vibration that the drive may experience without incurring physical damage or degradation in performance. 5–22 Hz 0.2-inch displacement (peak-to-peak) 22–400 Hz 4 Gs acceleration (0 to peak) 400–22 Hz...

  • Page 23: Agency Certification

    As a subassembly, no Federal Communi- cations Commission verification or certification of the device is required. Seagate Technology, Inc. has tested this device in enclosures as de- scribed above to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) complies with the limits for a Class B...
  • Page 24 Marathon 2250 and Marathon 1680 Product Manual This equipment is designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference with radio or television reception...

  • Page 25: Drive Mounting And Configuration

    Marathon 2250 and Marathon 1680 Product Manual 2.0 Drive mounting and configuration 2.1 Handling and static-discharge precautions After unpacking, but before installation, the drive may be exposed to potential handling and ESD hazards. You must observe standard static- discharge precautions. A grounded wrist-strap is recommended.

  • Page 26: Figure 2. Connector And Master/Slave Jumper Setup

    Marathon 2250 and Marathon 1680 Product Manual Note. Drive is shown with circuit board up. Master/slave Pin 1 configuration jumpers Pin 20 removed for keying Circuit board Drive is master; slave may be detected using DASP– signal Drive is master; Seagate slave drive present Drive is slave;...

  • Page 27: Remote Led Configuration

    Marathon 2250 and Marathon 1680 Product Manual 2.3 Remote LED configuration The drive indicates activity to the host through the DASP– line (pin 39) on the ATA interface. This line may be connected to a drive status indicator driving an LED at 5V. The line has a 30 mA nominal current limit;...

  • Page 28: Figure 3. Drive Mounting Dimensions-Side And Bottom View

    Marathon 2250 and Marathon 1680 Product Manual (to tips of I/O connector pins) (to end of HDA) A1 +A2 –A3 A21 ± A22 A26 thread, 4PLC min A38 full thread center within A27 of position specified A4 ± A5 (width at...

  • Page 29: Figure 4. Drive Mounting Dimensions-End View

    Marathon 2250 and Marathon 1680 Product Manual Pin 20 removed Pin 1 Pin 44 for keying +A2 –A3 ± A14 Detail ± A18 ± A10.1 Figure 4. Drive mounting dimensions—end view (for dimension specifications, see table below). Mounting dimension specifications Dim.
  • Page 30 Marathon 2250 and Marathon 1680 Product Manual continued from previous page Mounting dimension specifications Dim. Description inches Allowable range, side-to-side, pins within connector 0.003 0.08 Pin top-to-bottom dimension 0.020 0.50 + and – tolerance on pin top-to-bottom dimension 0.002 0.05 Allowable range, top-to-bottom connector location 0.020...

  • Page 31: Ata Interface Connector

    Marathon 2250 and Marathon 1680 Product Manual 2.5 ATA interface connector The drive connector is a 44-conductor connector with 2 rows of 22 male pins on 0.079-inch (2 mm) centers (see Figure 4 on page 21 and Figure 5). The mating cable connector is a 44-conductor, nonshielded connector with 2 rows of 22 female contacts on 0.079-inch (2 mm) centers.
  • Page 32 Marathon 2250 and Marathon 1680 Product Manual...

  • Page 33: Ata Attachment-3 Interface (Ata-3)

    Marathon 2250 and Marathon 1680 Product Manual 3.0 ATA Attachment-3 Interface (ATA-3) The drives in this manual comply with the ATA-3 Standard, proposed by the X3T10 committee, a Technical Committee of Accredited Standards Committee X3, of the American National Standards Institute (ANSI).

  • Page 34: Figure 6. I/O Pins And Supported Ata Signals

    Marathon 2250 and Marathon 1680 Product Manual Drive pin # Host pin # and signal description Signal name Reset – Host Reset Ground Ground Host Data Bus Bit 7 Host Data Bus Bit 8 Host Data Bus Bit 6 Host Data Bus Bit 9...

  • Page 35: Ata Interface Commands

    Marathon 2250 and Marathon 1680 Product Manual 3.2 ATA Interface commands 3.2.1 Supported ATA commands The following table lists supported ATA-standard and Seagate-specific drive commands. For a detailed description of the ATA commands, refer to the Draft Proposed ATA-3 Standard. See Section 3.2.4 on page 33 for details and subcommands used in the S.M.A.R.T.
  • Page 36 Marathon 2250 and Marathon 1680 Product Manual continued from previous page Supported by Command Marathon 2250 Command name code and Marathon 1680 Execute S.M.A.R.T Command Write Buffer Write DMA (w/retry) Write DMA (no retry) Write Long (w/retry) Write Long (no retry)

  • Page 37: Identify Drive Command

    Marathon 2250 and Marathon 1680 Product Manual The following commands contain drive-specific features that may not be described in the Draft Proposed ATA-3 Standard . 3.2.2 Identify Drive command The Identify Drive command (command code EC ) transfers information about the drive to the host following power-up. The data is organized as a single 512-byte block of data, the contents of which are shown in the table below.
  • Page 38 Marathon 2250 and Marathon 1680 Product Manual continued from previous page Word Description Contents ST92255AG or Drive model number: (40 ASCII characters, 27–46 ST91685AG padded with blanks to end of string) Maximum sectors per interrupt on read/write 0010 multiple Double word I/O (not supported)
  • Page 39 Marathon 2250 and Marathon 1680 Product Manual Word Description Contents Minimum multiword DMA transfer cycle time 0078 per word (120 nsec) Recommended multiword DMA transfer 0078 cycle time per word (180 nsec) Minimum PIO cycle time without IORDY flow 016B...

  • Page 40: Set Features Command

    Marathon 2250 and Marathon 1680 Product Manual 3.2.3 Set Features command This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt.
  • Page 41 Marathon 2250 and Marathon 1680 Product Manual Not implemented Not implemented Enable read look-ahead (read cache) feature (default) Not implemented 4 bytes of ECC apply on read long and write long commands (default) Enable reverting to power-on defaults (default) At power-on or after a hardware reset, the default values of the features are as indicated above.

  • Page 42: Commands

    Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) is an emerging technology that provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the Seagate drive monitors prede- termined drive attributes that are susceptible to degradation over time. If self-monitoring determines that a failure is likely, S.M.A.R.T. makes a status report available so that the host can prompt the user to back up data on the drive.

  • Page 43: Drive Security Commands

    The drive-security commands provide a password-based security sys- tem to prevent unauthorized access to a disc drive. During manufacturing, the master password, SEAGATE, is set for the drive, and the lock function is disabled. The system manufacturer or dealer may set a new master password using the Security Set Password command (F1 ), without enabling the lock function.
  • Page 44 Marathon 2250 and Marathon 1680 Product Manual...

  • Page 45: Appendix. Compatibility Notes

    Marathon 2250 and Marathon 1680 Product Manual Appendix. Compatibility notes ECC testing When a Marathon 2250 or Marathon 1680 performs hardware-based ECC error correction on-the-fly, the drive does not report an ECC error. This allows ECC correction without degrading drive performance. Some older drive diagnostic programs test ECC features by creating small data errors and then checking to see if they are reported.
  • Page 48 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066, USA Publication Number: 36337-101, Rev. B, Printed in USA...

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