Seagate ST940817AM, ST980818AM Serial ATA Sata interface, Serial ATA connector pin definitions

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4.1Serial ATA (SATA) interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1.1Hot-Plug compatibility

EE25.2 Series SATA drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA: High Speed Serialized AT Attachment specification revision 2.0. This specification can be downloaded from http://www.serialata.com.

4.1.2Serial ATA device plug connector pin definitions

Table 5 summarizes the signals on the Serial ATA interface and power connectors..

Table 5:

Serial ATA connector pin definitions

 

 

 

 

Segment

Pin

Function

Definition

 

 

 

 

 

S1

Ground

2nd mate

 

 

 

 

 

S2

A+

Differential signal pair A from Phy

 

 

 

 

 

S3

A-

 

 

 

 

 

 

S4

Ground

2nd mate

 

 

 

 

 

S5

B-

Differential signal pair B from Phy

 

 

 

 

 

S6

B+

 

Signal

 

 

 

S7

Ground

2nd mate

 

 

 

 

Key and spacing separate signal and power segments

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EE25.2 Series Product Manual, Rev. E

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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 Introduction Market Capacity Interface ModelPage Drive specifications Specification summarySpecifications for 80 Gbyte models Pata SataGs 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 Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Technology Specification Physical organizationRecording technology Model Read/write heads Number of disksPhysical characteristics Read all temperatures Write all temperaturesSeek time Typical MaxPower specifications Start/stop times+5V Average Power dissipation 25CWatts Amps Conducted noise Typical current profileVoltage tolerance Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications AltitudeAcoustics Nonoperating shockVibration Operating vibrationAcoustic mode Idle Seeks Bels typ Bels maxElectromagnetic immunity Test Description Performance Reference Level StandardSafety certification ReliabilityAgency certification Electromagnetic compatibilityAustralian C-Tick N176 FCC verificationCorrosive environment Environmental protectionEuropean Union Restriction of Hazardous Substances RoHS EE25.2 Series Product Manual, Rev. E Handling and static discharge precautions Mounting and configuring the driveDrive mounting Mounting dimensions-top, side and end view Breather filter hole precautions Breather filter hole locationHow to configure the drive How to connect Sata cablesHow to configure the drive as a master or slave How to configure Parallel ATA Pata drivesHow to use the cable-select option EE25.2 Series Product Manual, Rev. E Interface RefererenceSerial ATA Sata interface Serial ATA connector pin definitionsSegment Pin Function Definition Power Pin Function DefinitionPata interface signals and connector pins Connector signalsConnector Cable Signal Name Contact Conductor Cable Connector Conductor Contact Signal NameSupported ATA commands Command name Command code in hex ATA-standard commandsATA-standard power-management commands Command name Command code in hexATA-standard security commands Identify Device command Word Description ValueXxxxH Description if bit is set to Bit Set Features command 0CHA.R.T. commands S.M.A.R.T. commandsCode in features register A.R.T. command EE25.2 Series Product Manual, Rev. E Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index NumericsPage 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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