Seagate ST940818SM, ST980818AM manual Typical current profile, Conducted noise, Voltage tolerance

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2.9.1.1Typical current profile

Figure 1. Typical 5V startup and operation current profile

2.9.2Conducted 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.

2.9.3Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%

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Contents EE25.2 Series Page Contents EE25.2 Series Product Manual, Rev. E List of Figures EE25.2 Series Product Manual, Rev. E Market Capacity Interface Model IntroductionPage Specification summary Drive specificationsPata Sata Specifications for 80 Gbyte modelsGs 0 to peak, 5-500 Hz X, Y, Z axis, 45 angles Specifications for 60 Gbyte models EE25.2 Series Product Manual, Rev. E Specifications for 40 Gbyte models EE25.2 Series Product Manual, Rev. E Specifications for 30 Gbyte models EE25.2 Series Product Manual, Rev. E Cylinders Read/write heads Sectors per track 16,383 Default logical geometryLBA mode Formatted capacityModel Read/write heads Number of disks Technology SpecificationPhysical organization Recording technologyTypical Max Physical characteristicsRead all temperatures Write all temperatures Seek timeStart/stop times Power specificationsWatts Amps Power dissipation 25C+5V Average Voltage tolerance Typical current profileConducted noise Sleep mode Power-management modesActive mode Idle modeAltitude Environmental specificationsOperating vibration AcousticsNonoperating shock VibrationBels typ Bels max Acoustic mode Idle SeeksTest Description Performance Reference Level Standard Electromagnetic immunityElectromagnetic compatibility Safety certificationReliability Agency certificationFCC verification Australian C-Tick N176European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment EE25.2 Series Product Manual, Rev. E Drive mounting Mounting and configuring the driveHandling and static discharge precautions Mounting dimensions-top, side and end view Breather filter hole location Breather filter hole precautionsHow to connect Sata cables How to configure the driveHow to use the cable-select option How to configure Parallel ATA Pata drivesHow to configure the drive as a master or slave EE25.2 Series Product Manual, Rev. E Refererence InterfaceSegment Pin Function Definition Serial ATA connector pin definitionsSerial ATA Sata interface Pin Function Definition PowerCable Connector Conductor Contact Signal Name Pata interface signals and connector pinsConnector signals Connector Cable Signal Name Contact ConductorCommand name Command code in hex ATA-standard commands Supported ATA commandsATA-standard security commands Command name Command code in hexATA-standard power-management commands Word Description Value Identify Device commandXxxxH Description if bit is set to Bit 0CH Set Features commandCode in features register A.R.T. command S.M.A.R.T. commandsA.R.T. commands EE25.2 Series Product Manual, Rev. E Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Numerics IndexPage Page EE25.2 Series Product Manual, Rev. E Page Seagate Technology LLC

ST940817SM, ST940818SM, ST960817SM, ST930817AM, ST960818AM specifications

Seagate has consistently been a leader in the field of data storage solutions, and their lineup of hard disk drives caters to a variety of needs. Among these, the ST980818SM, ST940817AM, ST940817SM, ST940818AM, and ST960817AM models stand out for their performance, reliability, and innovative technologies.

The ST980818SM is a 2.5-inch, 7200 RPM hard drive that offers a storage capacity of 80 GB, making it ideal for both personal and professional use. It features an SATA interface, providing high-speed data transfer rates that facilitate quick access to stored content. The drive also incorporates Seagate's advanced error correction technology, which enhances data integrity and longevity.

On the other hand, the ST940817AM and ST940817SM models are designed for mobile computing environments, providing a capacity of 40 GB each. These drives are notable for their low power consumption, which helps extend battery life in laptops and portable devices. They also utilize Seagate’s QuietStep positioning technology, reducing seek noise and promoting a quieter operation.

The ST940818AM offers a slightly larger capacity of 80 GB while retaining the same energy efficiency and sound-dampening features as its ST940817 counterparts. This drive is particularly suitable for consumers looking for a balance between performance and noise reduction, especially in environments where quiet is a priority.

Lastly, the ST960817AM distinguishes itself with a capacity of 60 GB and a 5400 RPM speed, making it a more economical option without sacrificing reliability. This model is suitable for users who need adequate storage for applications and media but are conscious of budget constraints.

All these drives incorporate Seagate's proprietary technology, ensuring robust performance across various applications. These include optimizations for thermal management, enhancing durability and reliability even under intensive usage.

With their various capacities and features, Seagate's ST980818SM, ST940817AM, ST940817SM, ST940818AM, and ST960817AM hard drives offer flexible solutions for users ranging from casual home use to demanding professional environments. Whether the requirement is for storage efficiency, noise reduction, or reliability, Seagate's drives deliver exceptional value and performance tailored to diverse data storage needs.
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