Seagate ST9640422AS, ST9750422AS, ST9750424AS, ST9750423ASG, ST9750420ASG, ST9640423ASG Fffeh

Page 34

Word

Description

Value

 

 

 

 

 

 

 

89

Security erase time

0045H

 

 

90

Enhanced security erase time

0045H

 

 

91

Current APM values

8080H

 

 

92

Master password revision code

FFFEH

 

 

93

Hardware reset value (see description following this table)

xxxxH

 

 

94

Auto acoustic management setting

xxxxH

 

 

95

Stream Min. Request Size

0000H

 

 

96

Streaming Transfer Time - DMA

0000H

 

 

97

Streaming Access Latency - DMA and PIO

0000H

 

 

98–99

Streaming Performance Granularity

0000H

 

 

100–103

Total number of user-addressable LBA sectors available

ST9750423AS

= 1,465,149,168

 

(see Section 3.2 for related information)

ST9750423ASG

= 1,465,149,168

 

These words are required for drives that support the 48-bit

ST9750422AS

= 1,465,149,168

 

addressing feature. Maximum value: 0000FFFFFFFFFFFFh.

ST9750420AS

= 1,465,149,168

 

 

ST9750420ASG = 1,465,149,168

 

 

ST9640424AS

= 1,250,263,728

 

 

ST9640423AS

= 1,250,263,728

 

 

ST9640423ASG = 1,250,263,728

 

 

ST9500424AS

=

976,773,168

 

 

ST9500423AS

=

976,773,168

 

 

ST9500423ASG =

976,773,168

 

 

 

 

 

104

Streaming Transfer Time - PIO

0000H

 

 

105

Reserved

0000H

 

 

106

Physical sector size / Logical sector size

6003H

 

 

107

Seagate reserved

0000H

 

 

108–111

The mandatory value of the world wide name (WWN) for the

Each drive will have a unique value.

 

drive. NOTE: This field is valid if word 84, bit 8 is set to 1

 

 

 

 

indicating 64-bit WWN support.

 

 

 

 

 

 

 

 

112-118

ATA-reserved

0000H

 

 

119

Free Fall Protection support (bit 5)

1 = Free Fall Protection supported

 

 

0 = Free Fall Protection not supported

 

 

 

120

Free Fall Protection enable/disable (bit 5)

1 = Free Fall Protection feature is enabled

 

 

0 = Free Fall Protection feature is disabled

 

 

 

 

 

121–127

ATA-reserved

0000H

 

 

128

Security status

0021H

 

 

129–159

Seagate-reserved

xxxxH

 

 

160–254

ATA-reserved

0000H

 

 

255

Integrity word

xxA5H

 

 

28

Momentus Product Manual, Rev. C

Image 34
Contents Momentus Standard models Free-fall sensor modelsRevision history Revision Date Sheets affected or commentsContents Momentus Product Manual, Rev. C List of Figures Page Seagate Technology support services Seagate Online Support and ServicesIntroduction Standard models Free Fall Protection modelsAbout the Serial ATA interface Specification summary table Drive specificationsDrive specifications for 750, 640 and 500 GB models Altitude, nonoperating Formatted capacity Default logical geometryLBA mode Physical organizationDrive specification Physical characteristicsRecording and interface technology Typical seek times Seek timeStart/stop times Typical seek times ms ReadPower specifications Typical current profile Conducted noise Voltage toleranceActive mode Power-management modesPower management modes Idle modeEnvironmental specifications Nonoperating shock ShockOperating shock VibrationElectromagnetic immunity Drive A-weighted Sound Power Levels SWL, BAAcoustics Test for Prominent Discrete Tones PDTsReliability Free Fall Protection featureSafety certification Agency certificationAustralian C-Tick N176 Korean RRLFCC verification European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment China Restriction of Hazardous Substances RoHS DirectiveConfiguring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingSerial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionSupported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard security commandsIdentify Device command Word Description ValueXxxxH Fffeh Description if bit is set to Bit Set Features command Set Features command valuesA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Momentus Product Manual, Rev. C Index ITE TPI Momentus Product Manual, Rev. C Page Seagate Technology LLC
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ST9500428AS, ST9640422AS, ST9750423ASG, ST9750420AS, ST9750420ASG specifications

The Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS are part of Seagate's popular lineup of SATA hard drives designed for consumer and enterprise applications. These drives are recognized for their reliability, performance, and advanced technologies, making them suitable for a variety of storage needs.

The ST9750422AS and ST9750423AS models are 7200 RPM drives with a storage capacity of 750 GB, while the ST9500423ASG and ST9640423ASG offer different capacities and characteristics tailored for specific uses. The ST9500423ASG typically features a 500 GB capacity, while the ST9640423ASG is often found with 640 GB of storage space. These drives support the Serial ATA interface, ensuring high-speed data transfer rates and compatibility with a broad range of host systems.

All drives in this series feature a robust 32 MB cache that enhances performance by allowing faster access to frequently used data. This cache is critical, especially for read/write operations that require rapid data retrieval, making these models well-suited for tasks ranging from simple home computing to more intensive applications such as gaming and multimedia editing.

The ST9750422AS and ST9750423AS models are built with technologies such as Advanced Format, which improves storage capacity and enhances error correction. Additionally, these drives employ Seagate's PowerBalance and PowerFin technologies, enabling efficient power management without compromising performance.

Reliability is a core characteristic of the Seagate ST9XXX series, featuring a mean time between failures (MTBF) of over a million hours, which translates to increased system uptime and reduced potential for data loss. The drives also include features such as Native Command Queuing (NCQ), which optimizes the processing of multiple read/write commands, further boosting performance during heavy workloads.

In conclusion, the Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS hard drives represent a blend of speed, reliability, and advanced technology, making them an excellent choice for users looking for dependable storage solutions. Whether for a home PC or an enterprise server, these drives continue to deliver outstanding performance and value in a competitive market.