Summary of the content on the page No. 1
Product Manual
Momentus 7200.3 SATA
ST9320421AS
ST9320421ASG
ST9250421AS
ST9250421ASG
ST9200421AS
ST9200423ASG
ST9160411AS
ST9160411ASG
ST9120411AS
ST9120411ASG
ST980411AS
ST980411ASG
100512541
Rev. C
July 2008
Summary of the content on the page No. 2
Copyright © 2008 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100512541, Rev. C, July 2008 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus and SeaTools 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
Summary of the content on the page No. 3
Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary table . . . . . . . . . . . . . . . .
Summary of the content on the page No. 4
ii Momentus 7200.3 SATA Product Manual, Rev. C
Summary of the content on the page No. 5
List of Figures Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 4. Mounting dimensions—top, side and end view . . . . . . . . .
Summary of the content on the page No. 6
Summary of the content on the page No. 7
1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Momentus 7200.3 SATA model drives: • ST9320421AS • ST9320421ASG • ST9250421AS • ST9250421ASG • ST9200421AS • ST9200423ASG • ST9160411AS • ST9160411ASG • ST9120411AS • ST9120411ASG • ST980411AS • ST980411ASG These drives provide the following key features: • 7,200-RPM spindle speed. • 16-Mbyte buffer. • Free Fall Protection (on ST9320421ASG, ST9250421ASG, ST9200423ASG,
Summary of the content on the page No. 8
1.1 About the Serial ATA interface The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include: • Easy installation and configuration with true plug-and-play connectivity. It is not normally necessary to set any jumpers or other configuration options. • Thinner and more flexible cabling for improved enclosure airflow and ease of installation. • Scalability to higher performance levels. In addition, Serial ATA makes the tran
Summary of the content on the page No. 9
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 the ST9320421AS, ST9320421ASG, ST9250421AS, ST9250421ASG, ST9200421AS, ST9200423ASG, ST9160411AS, ST9160411ASG, ST9120411AS, ST9120411ASG, ST980411AS and ST980411ASG models. 2.1 Specification summary table The specifications listed in this table are for quick ref
Summary of the content on the page No. 10
Table 1: Drive specifications ST9320421AS ST9250421AS ST9200421AS ST9160411AS ST9120411AS ST980411AS Drive specification ST9320421ASG ST9250421ASG ST9200423ASG ST9160411ASG ST9120411ASG ST980411ASG Standby to ready 3.0 (sec typical) Track-to-track seek time, 1.0 read (msec typical) Average seek, read 11.0 (msec typical) Average seek, write 13.0 (msec typical) Startup current, +5V (max) 1.0 amps Seek power (typical) 2.3 watts Read power (typical) 2.1 watts Write power (typical) 2.3 watts Idle
Summary of the content on the page No. 11
Table 1: Drive specifications ST9320421AS ST9250421AS ST9200421AS ST9160411AS ST9120411AS ST980411AS Drive specification ST9320421ASG ST9250421ASG ST9200423ASG ST9160411ASG ST9120411ASG ST980411ASG Load/Unload (U/UL) cycles 25°C, 50% relative humidity 600,000 software-controlled power on/off cycles 50,000 hard power on/off cycles 32°C, 80% relative humidity 600,000 software-controlled power on/off cycles 5°C, 80% relative humidity 50,000 hard power on/off cycles 5°C, 10% relative
Summary of the content on the page No. 12
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 numbered from 0 to n–1, where n is the number of guaranteed sectors as defined above. 2.4 Physical organization Drive model Read/write heads Number of discs ST9320421AS and ST9320421ASG 4 2 ST9250421AS and ST9250421ASG 3 2 ST9200421AS and ST9200423ASG 3 2 ST9160411AS and ST9160411ASG 2 1 ST9120411AS and ST9120411A
Summary of the content on the page No. 13
2.6 Physical characteristics Drive specification Height (mm) 9.5 +/-0.2 (inches) 0.374 +/-0.0078 Width (mm) 69.85 +/-0.249 (inches) 2.75 +/-0.0098 Length (mm) 100.3 +/-0.25 (inches) 3.95 +/-.010 Typical weight ST9320421AS 110 grams ST9320421ASG 0.238 pounds ST9250421AS ST9250421ASG ST9200421AS ST9200423ASG ST9160411AS 105 grams ST9160411ASG 0.227 pounds ST9120411AS ST9120411ASG ST980411AS ST980411ASG 2.7 Seek time Seek measurements are taken with nominal power at 25°C a
Summary of the content on the page No. 14
2.8 Start/stop times Time to ready Typical Max @ 25°C Power-on to Ready (sec) 4.0 8.0 Standby to Ready (sec) 3.0 8.0 2.9 Power specifications The drive receives DC power (+5V) through a native SATA power connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 8. 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 t
Summary of the content on the page No. 15
2.9.1.1 Typical current profile Figure 1. Typical +5V only 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.
Summary of the content on the page No. 16
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 4: 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
Summary of the content on the page No. 17
2.10 Environmental specifications This section provides the temperature, humidity, shock, and vibration specifications for Momentus 7200.3 SATA drives. 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: 0
Summary of the content on the page No. 18
2.10.6.2 Nonoperating shock The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse of 2 msec duration. The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 1,000 Gs based on a nonrepetitive half-sine shock pulse of 1 msec d
Summary of the content on the page No. 19
2.12 Electromagnetic immunity When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table: Table 6: Radio frequency environments Performance Reference Test Description level standard Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN 61000-4-2: 95 Radiated RF immunity 80 to 1,000 MHz, 3 V/m, A EN 61000-4-3: 96 80% AM with 1 kHz s
Summary of the content on the page No. 20
To enable the Free Fall Protection feature on ST9320421ASG, ST9250421ASG, ST9200423ASG, ST9160411ASG, ST9120411ASG and ST980411ASG models, use Set Features command 41h. To disable this feature, use Set Features command C1h. Information about Free Fall Events that have occurred is available through SMART Attribute FEh. Note. The Free Fall Protection feature is provided only on ST9320421ASG, ST9250421ASG, ST9200423ASG, ST9160411ASG, ST9120411ASG and ST980411ASG models. 2.14 Agency certification
