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Product Manual
LD25 Series
ST9402115A
ST920217A
100371274
Rev. C
August 2007
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©2005-2007, Seagate Technology LLC All rights reserved. Publication number: 100371274, Rev. C August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. LD25 Series, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the proper
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Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Formatted capacity . . . . . . . . . . . . . . . . . .
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ii LD25 Series PATA Product Manual, Rev. C
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List of Figures Figure 1. Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 2. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 LD25 Series PATA Product Manual, Rev. C iii
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iv LD25 Series PATA Product Manual, Rev. C
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1.0 Introduction ® This manual describes the functional, mechanical and interface specifications for the following Seagate LD25 Series drives: � ST9402115A � ST920217A Seagate LD25 Series drives comprise a new product category of 2.5-inch form factor drives designed for non- notebook PC applications such as: � Consumer electronics (gaming, small PVRs/DVRs) � Ultra-small desktop PCs � Internet appliances LD25 Series drives are quieter, lighter and use less power than 3.5-inch drives. They are id
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2 LD25 Series PATA Product Manual, Rev. C
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2.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate ST9402115A and ST920217A model drives. 2.1 Specification summary The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Table 1: Specifications Drive sp
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Table 1: Specifications Drive specification ST9402115A ST920217A Full-stroke seek (msec) 22 (typical); 24 (max) Startup current 5V (amps typical) (max = +/- 10%) 1.0 Seek power, random r/w, desktop usage (watts, typical) 2.3 Idle mode (watts, typical) 2.0 Standby and sleep modes (watts, typical) <0.5 Voltage tolerance (including noise) 5V ± 5% Ambient temperature 5° to 55°C (operating), –40° to 70°C (nonoperating) Temperature gradient 20°C (operating) (°C per hour max, noncondensing) 30°C (nono
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2.2 Formatted capacity Model Formatted capacity* Guaranteed sectors Bytes per sector ST9402115A 40 Gbytes 82,443,600 512 ST920217A 20 Gbytes 41,021,800 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ- ment and formatting. 2.3 Default logical geometry Cylinders Read/write heads Sectors per track 16,383 16 63 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numb
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2.6 Physical characteristics Height (mm) 9.5 +/–0.2 (inches) 0.374 +/–0.008 Width (mm) 69.85 +/–0.25 (inches) 2.750 +/–0.010 Length (mm) 100.2 +/–1.45 (inches) 3.945 +/–0.057 Typical weight (grams) 100 (pounds) 0.22 2.7 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications below are defined as follows: � Track-to-track seek time is an average of all possible single-track seeks in both dire
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2.9 Power specifications The drive receives DC power (+5V) through the 4-pin power connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 7. Typical power measurements are based on an average of drives tested, under nominal conditions, at 25°C ambient temperature. • Spinup power Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed. � Seek mode During seek mode, the read/write actuator arm move
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2.9.1.1 Typical current profile Figure 1. Typical 5V startup and operation current profile 2.9.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +5 volt line. Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz. Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current. 2.9.3 Volt
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2.9.4 Power-management modes The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following power-management modes: Table 3: Power management modes Power modes Heads Spindle Buffer Active (operating) Tracking Rotating Enabled Idle Tracking Rotating Enabled Idle, active Floating Rotating Disabled Idle, low power Parked Rotating Disabled Standby Parked Stop
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2.10 Environmental specifications 2.10.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions. Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet. Operating 5° to 55°C (41° to 131°F) Nonoperating –40° to 70°C (–40° to 158°F) 2.10.2 Temperature gradient Operating 20°C per hour
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2.10.5 Shock All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis. 2.10.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 100 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more than two times per second. 2.10.5.2 Nonoperating shock The nonoperating shock leve
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2.11 Acoustics Drive acoustics are measured as overall A-weighted acoustic sound power levels. All measurements are con- sistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward. Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation: (Number of seeks per second = 0.4 / (avera
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2.13 Reliability Measurement type Specification 14 Nonrecoverable read errors 1 per 10 bits read, max. Annualized Failure Rate (AFR) <1.0% Desktop and Gaming use Load/Unload (L/UL) Controlled L/UL cycles 50,000 (40°C, 50% Relative Humidity) Emergency L/UL cycles 20,000 (40°C, 50% Relative Humidity) Service Life 5 Years Warranty To determine the warranty for a specific drive, use a web browser to access the fol- lowing web page: www.seagate.com/support/service/ From this page, click o
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Korean RRL If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para- graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of Korea. These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil- ity (EMI/EMS) for Cla
