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Product Manual
EE25 Series
ST940813AM
ST940814AM
ST930813AM
ST930814AM
ST920813AM
ST920814AM
100384290
Rev. E
August 2007
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©2007, Seagate Technology LLC All rights reserved. Publication number: 100384290, Rev. E August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. EE25 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 property of
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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 EE25 Series Product Manual, Rev. E
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List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2. Temperature vs. altitude capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 3. Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 4. Mounting dimensions—top, side and end view . . . . . . .
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iv EE25 Series Product Manual, Rev. E
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1.0 Introduction ® This manual describes the functional, mechanical and interface specifications for the following Seagate EE25 Series drives: ST940813AM OEM 40 GBytes ST940814AM Aftermarket 40 GBytes ST930813AM OEM 30 Gbytes ST930814AM Aftermarket 30 Gbytes ST920813AM OEM 20 Gbytes ST920814AM Aftermarket 20 Gbytes These drives provide the following key features: � Extreme operating environment capabilities: OEM temperature range: -30°C to 85°C Aftermarket temperature range: -20°C to 75°C � 5,
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2 EE25 Series Product Manual, Rev. E
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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 ST940813AM, ST940814AM, ST930813AM, ST930814AM, ST920813AM, and ST920814AM model drives. 2.1 Specification summary The specifications listed in the following two tables are for quick reference. For details on specification mea- surement or definition, see the appr
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Table 1: Specifications for 40 and 30 Gbyte models ST940813AM ST940814AM ST930813AM ST930814AM Drive specification (OEM) (Aftermarket) (OEM) (Aftermarket) Formatted (512 bytes/sector)* 40 Gbytes 30 Gbytes Guaranteed sectors 78,140,160 58,605,120 Bytes per sector 512 Physical read/write heads 2 Discs 1 Cache 8 Mbytes Recording density, BPI 540.1k bits/inch at ID Track density. TPI 119k tracks/inch at ID 2 Areal density 64.3 Gbits/inch at ID Spindle speed 5,400 RPM Internal data transfer rate
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ST940813AM ST940814AM ST930813AM ST930814AM Drive specification (OEM) (Aftermarket) (OEM) (Aftermarket) Wet bulb temperature 40°C (operating, max) 40°C (nonoperating, max) Altitude, operating (at 25°C) –304.8 m to 4,419.6 m (–1000 ft to 14,500 ft) For higher temperature capabilities, See “Temperature vs. altitude capability” on page 15. Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft) Shock, operating at 2 msec 200 Gs max at 11 mse
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Table 2: Specifications for 20 Gbyte models ST920813AM ST920814AM Drive specification (OEM) (Aftermarket) Formatted (512 bytes/sector)* 20 Gbytes Guaranteed sectors 39,070,080 Bytes per sector 512 Physical read/write heads 1 Discs 1 Cache 8 Mbytes Recording density, BPI 540.1k bits/inch at ID Track density. TPI 119k tracks/inch at ID 2 Areal density 64.3 Gbits/inch at ID Spindle speed 5,400 RPM Internal data transfer rate 321.1 Mbits/sec max I/O data transfer rate 100 Mbytes/sec ATA data-tra
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ST920813AM ST920814AM Drive specification (OEM) (Aftermarket) Wet bulb temperature 40°C (operating, max) 40°C (nonoperating, max) Altitude, operating (at 25°C) –304.8 m to 4,419.6 m (–1000 ft to 14,500 ft) For higher temperature capabilities, See “Temperature vs. altitude capability” on page 15. Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft) Shock, operating at 2 msec 200 Gs max at 11 msec 110 Gs max Shock, nonoperating at
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2.2 Formatted capacity Model Formatted capacity* Guaranteed sectors Bytes per sector ST940813AM 40 Gbytes 78,140,160 512 ST940814AM 40 Gbytes 78,140,160 512 ST930813AM 30 Gbytes 58,605,120 512 ST930814AM 30 Gbytes 58,605,120 512 ST920813AM 20 Gbytes 39,070,080 512 ST920814AM 20 Gbytes 39,070,080 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.3 Default logical geometry Cylinders
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2.5 Recording and interface technology Technology Specification Interface Parallel ATA Recording density BPI 540.1k bits/inch typical Track density TPI 119k tracks/inch typical 2 Areal density 64.3 Gbits/inch max Spindle speed 5,400 RPM (± 0.2%) Internal data-transfer rate 321.1 Mbits/sec max I/O data transfer rate 100 Mbytes/sec max Interleave 1:1 Cache buffer 8 Mbytes (8,192 kbytes) 2.6 Physical characteristics Height (mm) 9.5 +/–0.2 (inches) 0.374 +/–0.008 Width (mm) 69.85 +/–0.25 (inc
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Read seek times vs temperature 85°C 25°C -20°C -30°C msec msec msec msec Typical Max Typical Max Typical Max Typical Max Track-to-track 1 1 0.5 1 0.5 6 1 6 Average 11 15 11 13 11 14 11 17 Full-stroke 22 28 22 24 22 28 23 29 Average latency 5.6 5.6 5.6 5.6 Write seek times vs temperature 85°C 25°C -20°C -30°C msec msec msec msec Typical Max Typical Max Typical Max Typical Max Track-to-track 1 2 1 2 1 7 1 7 Average 14 19 14 15 14 16 15 19 Full-stroke 23 30 25 27 25 30 25 30 Average latency 5.6 5
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2.9 Power specifications The drive receives DC power (+5V) through the interface connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 11. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V input voltage at 25°C ambient tempera- ture. • 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 re
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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 cur- rent. 2.9.3 Vo
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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: Power modes Heads Spindle Buffer Active (operating) Tracking Rotating Enabled Idle, performance Tracking Rotating Enabled Idle, active Floating Rotating Disabled Idle, low power Parked Rotating Disabled Standby Parked Stopped Disabled Sleep
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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, measured on baseplate, should not exceed 90°C (194°F) within the operating ambient conditions. Operating OEM: -30° to 85°C (-86° to 185°F) Aftermarket: -20° to 75°C (-68° to 167°F) Nonoperating –40° to 95°C (–140° to 203°F) 2.10.2 Temperature gradient Operating 3°C per minute (37°F per minute max)
