Seagate ST3250820SCE, ST3300820SCE manual Drive specifications summary for 320 and 300 Gbyte models

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Table 3:

Drive specifications summary for 320 and 300 Gbyte models

 

 

 

 

Drive specification

ST3320820SCE

 

ST3300820SCE

 

 

 

 

Formatted Gbytes (512 bytes/sector)*

320

 

300

 

 

 

 

Guaranteed sectors

625,142,448

 

586,072,368

 

 

 

 

Bytes per sector

512

 

 

 

 

 

 

Default sectors per track

63

 

 

 

 

 

 

Default read/write heads

16

 

 

 

 

 

 

Default cylinders

16,383

 

 

 

 

 

 

Recording density, max

781 kbits/in

 

 

 

 

 

 

Track density, max

145 ktracks/in

 

 

 

 

 

 

Areal density, max

114.4 Gbits/in2

 

 

Spindle speed

7,200 RPM

 

 

 

 

 

 

Internal data transfer rate, max

1,030 Mbits/sec

 

 

 

 

 

 

Sustained data transfer rate, max

72 Mbytes/sec

 

 

 

 

 

 

I/O data-transfer rate, max

300 Mbytes/sec

 

 

 

 

 

 

ATA data-transfer modes supported

PIO modes 0–4

 

 

 

 

Multiword DMA modes 0–2

 

 

Ultra DMA modes 0–6

 

 

 

 

 

Cache buffer

 

8 Mbytes

 

 

 

 

Height (mm max)

26.1 mm (1.028 inches)

 

 

Width (mm max)

101.6 mm (4.000 inches) +/- 0.010 inches

 

 

Length (mm max)

146.99 mm (5.787 inches)

 

 

 

 

 

Weight (max)

 

635 grams

 

 

 

 

 

 

Average latency

4.16 msec

 

 

 

 

 

 

Power-on to ready, max

16 sec

 

 

 

 

 

 

Standby to ready, max

16 sec

 

 

 

 

 

Track-to-track seek time, typical

<0.8 msec read;

<1.0 msec write

 

 

 

 

Average seek, read, typical

<11.0 msec

 

 

 

 

 

 

Average seek, write, typical

<12.0 msec

 

 

 

 

 

 

Startup current (max) 12V (peak)

2.0 amps

 

 

 

 

 

 

Voltage tolerance (including noise)

5V ± 5%

 

 

 

 

12V ± 10%

 

 

 

 

Ambient temperature

0° to 65°C (operating)

 

 

–40° to 70°C (nonoperating)

 

 

 

 

Temperature gradient, per hour max

20°C (operating)

 

 

 

 

30°C (nonoperating)

 

 

Relative humidity

5% to 90% (operating)

 

 

5% to 95% (nonoperating)

 

 

 

 

Relative humidity gradient, per hour max

30%

 

 

 

 

Wet bulb temperature, max

37.7°C (operating)

 

 

37.7°C (nonoperating)

 

 

Altitude, operating

–60.96 m to 3,048 m

 

 

(–200 ft. to 10,000+ ft.)

 

 

Altitude, nonoperating, max

–60.96 m to 12,192 m below mean sea level

 

 

(–200 ft. to 40,000+ ft. below mean sea level)

 

 

 

 

Operational Shock, max

63 Gs at 2 msec

 

 

 

 

Non-Operational Shock, max

300 Gs at 2 msec

 

 

Vibration, operating

5–22 Hz: 0.25 Gs, Limited displacement

 

 

22–350 Hz: 0.50 Gs

 

 

350–500 Hz:: 0.25 Gs

 

 

 

 

 

8

DB35.3 Series Serial ATA Product Manual, Rev. D

Page 13 Page 15
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Contents DB35.3 Series Serial ATA Revision history Revision Date Sheets affected or commentsContents DB35.3 Series Serial ATA Product Manual, Rev. D List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 750 Gbyte models Drive specification ST3750640SCE ST3750840SCEDB35.3 Series Serial ATA Product Manual, Rev. D Drive specifications summary for 500 and 400 Gbyte models Drive specification ST3500830SCE ST3400820SCEFollowing web Drive specifications summary for 320 and 300 Gbyte models Drive specification ST3320820SCE ST3300820SCEDB35.3 Series Serial ATA Product Manual, Rev. D Drive specifications summary for 250 Gbyte models Drive specification ST3250820SCEInformation for your drive Formatted capacity Default logical geometryLBA mode Cylinders Read/write heads Sectors per track 16,383Recording and interface technology Physical characteristicsDrive specification 750GB 500GB 400GB 320GB 300GB 250GBStart/stop times Power specificationsSeek time Standby mode Operating power and currentIdle mode power DC power requirementsPower modes Heads Spindle Buffer Power-management modesActive mode Conducted noiseIdle and Standby timers Idle modeSleep mode Environmental specifications Vibration Nonoperating shock Disc models4 Disc models Operating vibrationIdle CE seek profile AcousticsFluid Dynamic Bearing FDB motor acoustics Agency certification Electromagnetic immunityReliability FCC verification Korean RRLAustralian C-Tick N176 Environmental protection RoHS MCVPage Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingDB35.3 Series Serial ATA Product Manual, Rev. D Serial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description ValueXx07H 159 160 ATA-reserved 0000H 254 255 Integrity word XxA5H Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.R.T. commands Technical Support InternetPresales Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index RRL Sata DB35.3 Series Serial ATA Product Manual, Rev. D Page Seagate Technology LLC

ST3400820SCE, ST3300820SCE, ST3750840SCE, ST3250820SCE, ST3750640SCE specifications

Seagate’s series of hard drives, including the ST3320820SCE, ST3500830SCE, ST3750640SCE, ST3250820SCE, and ST3750840SCE, comprise a robust lineup designed for both consumer and professional use.

The ST3320820SCE model features a storage capacity of 320GB and operates at a rotational speed of 7200 RPM, allowing for faster data access and improved overall performance. This drive is equipped with SATA interface, providing higher data transfer rates and enhanced connectivity options. Its 8MB cache enhances read and write speeds, thus making it suitable for multitasking environments.

In comparison, the ST3500830SCE offers a larger capacity with 500GB storage. This drive is also based on the same 7200 RPM speed standard, ensuring optimal performance for both gaming applications and data-heavy tasks. The SATA interface remains a central feature, promoting seamless integration into a range of PC configurations.

The ST3750640SCE takes the storage capabilities further, offering a generous 750GB space. It shares similar technological advancements such as the SATA interface and 7200 RPM speed, making it ideal for users needing extensive storage for multimedia files, software applications, and backups. The reliable performance alongside its increased capacity makes it a favored choice among professionals.

The ST3250820SCE model is targeted towards those needing a balance between performance and cost-efficiency. With a 250GB capacity, this drive provides ample space for everyday usage while maintaining a robust 7200 RPM speed and 8MB cache. This makes it an ideal option for entry-level systems and general-purpose computing.

Lastly, the ST3750840SCE offers up to 750GB of space, similar to the ST3750640SCE, but also incorporates advanced technologies for enhanced reliability and durability. This includes features like Seagate's Smart Align technology, which optimizes the drive's performance by efficiently managing data, especially with modern 4K sector drives.

Overall, these Seagate models cater to a wide spectrum of users, from casual home users to professionals requiring reliable and high-performance storage solutions. With a combination of speed, capacity, and innovative technologies, they stand out as solid choices in the hard drive market.
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