Hitachi HDT722525DLAT80, HDT722525DLA380, HDT722516DLAT80, HDT722516DLA380 DATASHEET
Hitachi Deskstar
®
T7K250
H A R D D I S K D R I V E S
250GB and 160GB | 7200 RPM | ATA 133 and Serial ATA 3.0Gb/s
High Performance Storage.
High l i ghts
> SATA 3.0Gb/s and PATA 133 interfaces
available with capacities up to 250GB
> ECC & CRC protection within drive
circuitry
> Low power design reduces system costs
and drives high reliability
> Quiet operating modes ideal for use in
noise-sensitive environments
Appl i c atio n s
> Personal computers
> Digital video recorders
> Entry servers
> Extreme PC gaming
> Video editing
SAT A 3.0Gb / s Fea t u res
> 3.0Gb/s (300 MB/s) interface data rate
> NCQ (native command queuing)
> Staggered (delayed) spin-up
The T7K250 provides all of these
enhancements to enable faster data access
and better power management to the system.
Fea t u res a n d Bene f i ts
Feature / Function Benefits
Performance High interface transfer rate Faster system boot-up
Quicker screen refreshes
Leading seek times Faster access to data
“Smooth Stream” technology Improved performance for A/V storage applications
NCQ (Native Command Queuing) Faster data processing
Capacity 250GB and 160GB Popular capacity points
Reliability Leading low power Cooler system operation
Enables lower cost power supply and fan
Head load/unload Protects disk during non-operation
Reduces power during idle periods
ECC and CRC protection Data integrity enhanced throughout circuits
Optional low-power mode Reduces power requirement in multi-drive systems
Reduces system heat / cooling requirements
Internal thermal sensor Improves data integrity
Acoustics Low acoustic levels Quieter system operation
Hita c h i Qual i ty and S e rvice
The Hitachi Deskstar T7K250 extends the company’s long-standing tradition of performance
leadership. Hitachi’s standardized features in desktop solutions enable fast transfer rates, low
power utilization and quiet acoustics.
A/V St reami n g Fea t u re Se t
The Deskstar T7K250 is the second generation Deskstar drive to enable the host system
to optimize storage of data. This is achieved
by Hitachi’s “Smooth Stream” technology
which gives the host control over the drive’s
error recovery process. This important ATA-7
Standards feature fine tunes the Deskstar to
capture long audio or video data streams.
Hitachi is dedicated to provide a breadth of hard disk drive solutions to satisfy all of today’s
demanding computing needs. Hitachi drives are backed by an array of technical support and
services, which may include customer and integration assistance.
www.hitachigst.com
H i t a c h i D e s k s t a r ® T 7 K 2 5 0
Pro du c t Des ks tar T 7K 2 50 D e sk sta r T7 K25 0
Model names HDT722525DLAT80 HDT722525DLA380
HDT722516DLAT80 HDT722516DLA380
Spe cif ica tio ns
Configuration Parallel-ATA Serial-ATA
Interface ATA-133 SATA 3.0Gb/s
Capacity (GB) 1 250 / 160
Data heads (physical) 4 / 3
Data disks 2
Performance
Data buffer 2 8 MB
Rotational speed (rpm) 7,200
Media transfer rate (max. Mbits/sec) 843.2
Interface transfer rate (max. MB/sec) 133 300
Sustained data rate (MB/sec) 67.8- 32.9 (zone 0 - 29)
Average seek time (ms) (read, typical)
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Availability 4 24/7
Acoustic
Idle (Bels) 2.8
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 1.88 (+12V) & 0.9 (+5V) 1.88 (+12V) & 1.2 (+5V)
Idle (W) 5.2 6.2
Physical Size
Height (mm) 25.4
Width (mm) 101.6
Depth (mm) 146
Weight (max. g) 640
Environmental characteristics
Operating
Ambient temperature (C) 5° to 55°
Relative humidity (non-condensing) 8% to 90%
Shock (half sine wave, 2ms) (G) 55
Vibration (random (RMS)) (G) 0.67 for horizontal
0.56 for vertical
Non-operating
Ambient temperature (C) -40° to 65°
Relative humidity (non-condensing) 5% to 95%
Shock (half sine wave, 2ms) (G) 350
Vibration (random (RMS)) (G) 1.04 rms (XYZ)
RoHS compliant 5 Some part numbers
1
GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2
Buffer capacity includes 270 or less KB used for drive firmware.
3
Includes command overhead.
4
Low duty cycle, non mission-critical applications in PC, nearline and consumer electronics customer environments
are different from application to application .
5
RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment. Visit www.hitachigst.com/rohs for compliance information.
Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
For specific application environment reliability rates, please consult Hitachi technical support.
3
8.5
Hitachi Global Storage Technologies
How to R e ad t he M ode l Nu mbe r
Example:
HDT722516DLA380 = 250GB/8MB
H = Hitachi
D = Deskstar
T = Two-disk (or S for Standard)
72 = 7200 RPM
25 = full capacity = 250GB
16 = model capacity = 160GB
D = generation code
L = 1-inch form factor
A3 = SATA 3.0 Gb/s (or AT for Parallel ATA)
8 = 8MB buffer
0 = Reserved
Fo r mor e in for mat ion :
Internet:
> www.hitachigst.com (Main Web site)
> www.hitachigst.com/vpp (Reseller Web site)
Technical Support E-mail:
> support_usa@hitachigst.com (N. America)
> support_ap@hitachigst.com (Asia Pacific)
> support_uk@hitachigst.com (EMEA and UK)
Technical Support Phone Numbers:
> 1 888 426-5214 (N. America)
> 65 6840 9595 (Asia Pacific)
> 44 20 7133 0032 (EMEA and UK)
> 49 6929 993601 (Germany Support)
© 2005 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
5600 Cottle Road
San Jose, CA 95193
Produced in the United States 5/05, revised 4/06
All rights reserved.
Deskstar® is a trademark of Hitachi Global Storage Technologies.
References in this publications to Hitachi Global Storage
Technologies products, programs, or services, do not imply
that Hitachi Global Storage Technologies intends to make
these available in all countries in which it operates.
Product information is provided for information purposes only,
and does not constitute a warranty. Information is true as of
the date of publication and is subject to change. Actual results
may vary. This publication is for general guidance only. Photographs may show design models.
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