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Product Manual
®
Momentus 4200.2
ST9120824A
ST9100825A
ST980829A
ST960812A
ST950814A
ST9402112A
ST930218A
100367124
Rev. C
August 2007
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©2004-2007, Seagate Technology LLC All rights reserved. Publication number: 100367124, 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. Momentus, Seagate- SeaBOARD, SeaFONE, SeaTDD, and SeaTools are either trademarks or registered trade- marks of Seagate Technology LLC or one of its affiliated companies in the United States and/ or other countries. All other trademarks or registere
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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 Momentus 4200.2 Product Manual, Rev. C
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List of Figures Figure 1. Momentus 4200.2 PATA disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 3. Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 4. Mounting dimensions—top, side and end view . . . . . . . . .
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iv Momentus 4200.2 Product Manual, Rev. C
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1.0 Introduction ® This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus 4200.2 drives: � ST9120824A � ST9100825A � ST980829A � ST960812A � ST950814A � ST9402112A � ST930218A These drives provide the following key features: � 4,200-RPM-Class Performance spindle speed. Actual spindle speed is 5,400 RPM. � 8-Mbyte buffer. � Quiet operation. Fluid Dynamic Bearing (FDB) motor. � High instantaneous (burst) data transfer rates (up to 100 Mbyte
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2 Momentus 4200.2 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 ST9120824A, ST9100825A, ST980829A, ST960812A, ST950814A, ST9402112A, and ST930218A 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
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Table 1: Specifications for 120, 100, and 80 GB models Drive specification ST9120824A ST9100825A ST980829A Read/write power (typical) Read: 1.80 watts; Write: 1.80 watts Idle mode (low power, typical) 0.80 watts Standby mode 0.26 watts (typical)*** Sleep mode 0.26 watts (typical)*** 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 (nonoperating) Relativ
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Table 1: Specifications for 60, 50, 40, and 30 GB models Drive specification ST960812A ST950814A ST9402112A ST930218A Formatted Gbytes (512 bytes/sector)* 60 50 40 30 Guaranteed sectors 117,210,240 97,692,174 78,140,160 58,605,120 Bytes per sector 512 Physical read/write heads 2 2 2 1 Discs 1 1 1 1 Cache (Mbytes) 8 Recording density, BPI (bits/inch typical) 778k Track density. TPI (tracks/inch typical 126k 2 Areal density (Gbits/inch max) 98.2 Spindle speed (RPM) 4,200 RPM-class performance (ac
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Table 1: Specifications for 60, 50, 40, and 30 GB models Drive specification ST960812A ST950814A ST9402112A ST930218A Shock, nonoperating (Gs max at 2 msec) 800 Shock, nonoperating (Gs max at 1 msec) 900 Shock, nonoperating (Gs max at 0.5 msec) 400 Vibration, operating 1.0 Gs (0 to peak, 5–500 Hz) (max displacement may apply below 10 hz) Vibration, nonoperating 5.0 Gs (0 to peak, 5–500 Hz) (max displacement may apply below 22 hz) Drive acoustics, sound power (bels), 2 disc Idle** 2.4 (typical)
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2.2 Formatted capacity Model Formatted capacity* Guaranteed sectors Bytes per sector ST9120824A 120 Gbytes 234,441,648 512 ST9100825A 100 Gbytes 195,371,568 512 ST980829A 80 Gbytes 156,301,488 512 ST960812A 60 Gbytes 117,210,240 512 ST950814A 50 Gbytes 97,692,174 512 ST9402112A 40 Gbytes 78,140,160 512 ST930218A 30 Gbytes 58,605,120 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2
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2.5 Recording and interface technology Technology Specification Interface Parallel ATA Recording method RLL 0,11 Recording density BPI (bits/inch typical) 778k Track density TPI (tracks/inch typical) 126k 2 Areal density (Mbits/inch max) 98.2 4,200 RPM-class performance (actual spin speed: 5,400 RPM) Spindle speed (RPM) (± 0.2%) Internal data-transfer rate OD (Mbytes/sec max) 37 I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5) Interleave 1:1 Cache buffer 8 Mbytes (8,184 kbytes) 2
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2.8 Time to ready Max @ 25°C Time to ready Typical Power-on to Ready (sec) 3.5 8.0 Standby to Ready (sec) 3.0 8.0 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 9. 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 tim
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2.9.1.1 Typical current profile Figure 2. 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 Full power Idle, performance Tracking Rotating Self refresh—low power Idle, active Floating Rotating Self refresh—low power Idle, low power
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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 250 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 (no pure tones). All mea- surements are consistent 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
