HP 4553Z (US) Seek Mode, Read/Write power and current, Operating power and current, Standby mode

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U8 Family Product Manual, Rev. B

•Seek Mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does not execute a read or write operation. Servo electronics are active. Seek mode power rep- resents the worst-case power consumption, using only random seeks with read or write latency time. This mode is not typical and is provided for worst-case information.

•Read/Write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay.

•Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive inactive.

•Idle mode power

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a random track location.

•Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/write electronics are in power- down mode.

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Contents Ultra ATA Interface Drives U8 FamilyST317221A, ST313021A ST38410A, ST34313AUltra ATA Interface Drives U8 FamilyST317221A, ST313021A ST38410A, ST34313APage U8 Family Product Manual, Rev. B ContentsATA interface Configuring and mounting the driveFigures U8 Family Product Manual, Rev. B Introduction ST313021A Specification summary tableDrive Specification ST317221A0 to 60C op., -40 to 70C nonop ST317221AST38410A 1.2 Physical organization 1.0 Drive specifications1.1.1 Default logical geometry 1.1 Formatted capacity1.5 Seek time 1.4 Physical characteristicsDrive Specification 1.3 Recording and interface technology1.6 Start/stop times 1.7 Power specifications1.7.1 Power consumption Spinup powerSeek Mode Read/Write power and currentOperating power and current Idle mode powerTypical Amps RMS Power Mode1.7.1.1 Typical current profile Typical Watts1.7.3 Voltage tolerance 1.7.4 Power-management modesPower Modes 1.7.2 Conducted noiseSleep mode Idle and Standby timers1.8 Environmental tolerances 1.8.1 Ambient temperature 1.8.2 Temperature gradient1.8.3 Humidity 1.8.6.1 Operating vibration 1.8.6.2 Nonoperating vibration1.9 Drive acoustics 1.12.2 Electromagnetic compatibility 1.12 Agency certification 1.12.1 Safety certification1.10 Electromagnetic susceptibility 1.11 ReliabilityAustralian CE-Tick N176 1.12.3 FCC verificationU8 Family Product Manual, Rev. B 2.1 Handling and static-discharge precautions 2.0 Configuring and mounting the driveCable select 2.2 Jumper settings 2.2.1 Master/slave configuration7 5 3 8 6 4 Options jumper block J8 Master or single drive Drive is slave2.2.2 Cable-select option 2.2.3 Ultra ATA/66 cable2.3 Drive mounting Note Dimensions are shown in inches mm Figure 3. Mounting dimensions-top, side and end view3.1 ATA interface signals and connector pins 3.0 ATA interfaceDrive pin # Figure 4. I/O pins and supported ATA signalsSignal name Host pin # and signal descriptionATA-standard commands 3.1.1 Supported ATA commandsCommand name Command code in hexCommand code in hex 3.1.2 Identify Drive commandValue WordDescription x.xxxx07H xxxxHxx1FH xxA5H Description if bit is set to Bit WordBit Word Set transfer mode based on value in Sector Count register 3.1.3 Set Features commandRegister 3.1.4 S.M.A.R.T. commandsCode in Features S.M.A.R.T. CommandCode in Features Page Page Seagate Technology, Inc 920 Disc Drive, Scotts Valley, California 95066, USAPublication Number SG35226-001, Rev. B, Printed in USA
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6573Z (US) specifications

The HP 8566C, 6573Z, 6647, 6671, and 6641 are examples of cutting-edge test equipment from Hewlett-Packard, now known as Agilent Technologies. Each of these models serves essential functions within the realm of RF and microwave signal analysis, tailored to meet the demands of engineers and technicians in various industries, including telecommunications, aerospace, and electronics.

The HP 8566C is a signal analyzer that provides comprehensive analysis, particularly useful for multi-channel and high-frequency signals. A notable feature of this model is its frequency range, which spans from 0.1 Hz to 26.5 GHz, making it suitable for a wide variety of applications. The instrument's advanced capabilities such as phase noise measurement, frequency response analysis, and spectrogram displays cater to precise and complex signal characterizations. The built-in tracking generator further enhances its utility, enabling users to test filters, amplifiers, and antenna systems efficiently.

On the other hand, the HP 6573Z is a precision DC power supply that is critical for testing and characterizing devices under various power conditions. It delivers high accuracy and stable output across a wide range of voltage and current options. This model integrates features like programmable voltage and current limits, allowing for customized test scenarios, essential for designers needing reliable power sources during the prototyping phase.

The HP 6647 and 6671 models are versatile electronic loads, primarily designed for battery testing and power supply validation. They support various testing modes, including constant current, constant voltage, and constant resistance modes, which provide flexibility for power electronics engineers. Their robust measurement capabilities allow for detailed analysis of response characteristics, load transients, and efficiency metrics.

Lastly, the HP 6641 complements this lineup by offering high-performance test equipment with similar applications in power electronics. It features intuitive interfaces and advanced programming capabilities, enabling streamlined automation of test procedures.

In conclusion, the HP 8566C, 6573Z, 6647, 6671, and 6641 collectively embody sophisticated testing capabilities in signal analysis and power electronics. Their features, ranging from high-frequency performance to accuracy in power delivery, make them indispensable in the modern technological landscape. These instruments support continuous innovation while ensuring the reliability of devices that are critical to both consumer and industrial sectors.
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