Table 3:

Drive specifications summary for 500 Gbyte models

 

 

 

 

 

 

Drive specification

ST3500320AS

 

ST3500620AS

ST3500820AS

 

 

 

 

 

Formatted capacity (512 bytes/sector)*

500 Gbytes

 

 

 

 

 

 

 

Guaranteed sectors

976,773,168

 

 

 

 

 

 

 

 

 

Heads

 

4

 

 

 

 

 

 

 

 

 

Discs

 

2

 

 

 

 

 

 

 

 

Bytes per sector

512

 

 

 

 

 

 

 

 

Default sectors per track

63

 

 

 

 

 

 

 

 

Default read/write heads

16

 

 

 

 

 

 

 

 

Default cylinders

16,383

 

 

 

 

 

 

 

Recording density

1090 kbits/in max

 

 

 

 

 

 

 

Track density

 

150 ktracks/in avg

 

 

 

 

 

 

 

Areal density

 

164 Gbits/in2 avg

 

 

Spindle speed

 

7,200 RPM

 

 

 

 

 

 

Internal data transfer rate

1287 Mbits/sec max

 

 

 

 

 

 

Sustained data transfer rate OD

105 Mbytes/sec max

 

 

 

 

 

 

I/O data-transfer rate

300 Mbytes/sec max

 

 

 

 

 

 

ATA data-transfer modes supported

PIO modes 0–4

 

 

 

 

Multiword DMA modes 0–2

 

 

 

 

Ultra DMA modes 0–6

 

 

 

 

 

 

 

Cache buffer

 

32 Mbytes

 

16 Mbytes

8 Mbytes

 

 

 

 

 

 

Height (max)

 

26.1 mm (1.028 inches)

 

 

 

 

 

 

Width (max)

 

101.6 mm (4.000 inches) +/- 0.010 inches

 

 

 

 

 

 

Length (max)

 

146.99 mm (5.787 inches)

 

 

 

 

 

 

Weight (typical)

543 grams ( 1.199 lb.)

 

 

 

 

 

 

Average latency

4.16 msec

 

 

 

 

 

 

Power-on to ready

20 sec max

 

 

 

 

 

 

Standby to ready

14 sec max

 

 

 

 

 

 

Track-to-track seek time

<0.8 msec typical read;

 

 

 

 

<1.0 msec typical write

 

 

 

 

 

 

Average seek, read

<8.5 msec typical

 

 

 

 

 

 

Average seek, write

<9.5 msec typical

 

 

 

 

 

 

Startup current (typical) 12V (peak)

3.0 amps

 

 

 

 

 

 

Voltage tolerance (including noise)

5V +10% / -7.5%

 

 

 

 

12V +10% / -7.5%

 

 

Ambient temperature

0° to 60°C per hour max (operating)

 

 

 

–40° to 70°C per hour max (nonoperating)

 

 

 

 

 

Temperature gradient

20°C per hour max (operating)

 

 

 

 

30°C per hour max (nonoperating)

 

 

 

 

 

Relative humidity

5% to 95% (operating)

 

 

 

 

5% to 95% (nonoperating)

 

 

Relative humidity gradient

30% per hour max

 

 

 

 

 

 

Wet bulb temperature

37.7°C max (operating)

 

 

 

 

40.0°C max (nonoperating)

 

 

 

 

 

 

Altitude, operating

–60.96 m to 3,048 m

 

 

 

 

(–200 ft. to 10,000+ ft.)

 

 

Altitude, nonoperating

–60.96 m to 12,192 m

 

 

(below mean sea level, max)

(–200 ft. to 40,000+ ft.)

 

 

 

 

 

 

Operational Shock

63 Gs max at 2 msec

 

 

 

 

 

 

Non-Operational Shock

300 Gs max at 2 msec

 

 

 

 

 

 

 

 

8

Barracuda 7200.11 Serial ATA Product Manual, Rev. G

Page 14
Image 14
Seagate ST3640330AS, ST31000340AS, ST31000640AS, ST3750330AS, ST3750630AS Drive specifications summary for 500 Gbyte models

ST3640630AS, ST3500820AS, ST3500320AS, ST3500620AS, ST31000640AS specifications

Seagate has long been a prominent player in the hard drive industry, and its line of SATA drives, including the ST3640330AS, ST3750330AS, ST3750630AS, ST31000340AS, and ST31000640AS, showcases a blend of performance, reliability, and advanced technology. These drives cater to various user needs, from consumer desktops to enterprise applications.

The ST3640330AS and ST3750330AS models are designed with a 7200 RPM spinning speed, ensuring fast data throughput for gaming, multimedia, and everyday computing tasks. With a SATA interface and compatibility with the latest systems, these drives are ideal for users seeking efficient storage solutions. The ST3640330AS provides 640 GB of storage, while the ST3750330AS boasts a generous 750 GB capacity, offering ample space for large files and applications.

Moving to the ST3750630AS, this model continues the trend of high performance, offering 750 GB of storage but enhanced with Seagate’s advanced error-correcting technology. It also features an updated cache architecture that optimizes read and write speeds while minimizing latency. This drive is particularly beneficial for users who require reliable backups and quick access to data.

The ST31000340AS and ST31000640AS are both part of Seagate’s 1 TB series and are engineered for durability and longevity. The ST31000340AS features traditional SATA technology, providing users with a balance between cost and performance. On the other hand, the ST31000640AS integrates improved power management features that result in lower energy consumption without compromising performance. This makes it a suitable choice for environmentally-conscious consumers or businesses looking to reduce operational costs.

All models feature Seagate's proprietary technologies such as SoftSonic drives, which result in quieter operation, and advanced power management capabilities that extend the lifespan of the hard drives. They are equipped with robust error recovery and data security features, ensuring data integrity and protecting against data loss.

Overall, the Seagate ST3640330AS, ST3750330AS, ST3750630AS, ST31000340AS, and ST31000640AS drives represent a comprehensive range of storage solutions that combine capacity, speed, and cost-effectiveness, making them a popular choice for a variety of users, from casual consumers to demanding enterprise environments.