Toshiba's New 80GB 2.5-Inch HDD for Automotive Applications Has Industry Largest(a) Storage Capacity



    -- New Products Boost Vibration Resistance by 50 Percent(b) --

    TOKYO, November 28 /CNW/ - Toshiba Corporation today announced the latest
additions to its market-leading lineup of 2.5-inch hard disk drives (HDD) for
automotive applications: an 80GB drive offering the industry's largest(a)
capacity, and a 40GB drive. The drives will be used in such applications as
car navigation systems, and will be released in industrial and retail
versions. Sample shipping of the drives has started and mass production will
start in March 2008.

    Toshiba's automotive HDD have earned an unrivaled reputation for
environmental toughness and performance, and made the company the leader in
the world automotive HDD market. With its latest drives, the company has
further enhanced durability and increased data capacity, using perpendicular
magnetic recording (PMR) to boost areal recording density and to raise storage
capacity to 80GB (MK8050GAC and MK8050GACE), double that of Toshiba's current
automotive drives(b) .

    Alongside higher storage, the drives offer numerous enhancements. Lighter
moving parts, a highly rigid enclosure, and the vibration resistance achieved
by a highly accurate head positioning system, takes overall, vibration
resistance to 29.4m/s2 (5-50Hz), a full 50% improvement over current
automotive models(b). In addition, an advanced aerodynamic design for the head
slider, which "floats" the head on a cushion of air, maintains the flying head
at a constant distance from the disk, a refinement that brings greater
reliability to data read and write in low pressure conditions at high
altitude. As a result, the new drives can operate at up to 5,500m above sea
level, 1,200m higher than current automotive models(b).

    In addition to map data information for car navigation, the new HDD can
be used in on-board entertainment systems, to store high capacity movie,
digital image and music files.

    Toshiba introduced its first HDD for automotive application in 2001. The
company's highly durable and reliable products today command a share of
approximately 85% of the global automotive HDD market(c), and cumulative
shipments now stand at over 7-million units.

    The new drives are fully compliant with the EU RoHS directive.

    
    Outline of New Models
    ----------------------------------------------------------------------
    Model name                Formatted Capacity          Dimensions
    ----------------------------------------------------------------------
    MK8050GAC
    -----------------------          80GB
    MK8050GACE                                      69.85 x 100.0 x 9.5mm
    ------------------------------------------------
    MK4050GAC
    -----------------------          40GB
    MK4050GACE
    ----------------------------------------------------------------------
    Note: Hard disk capacity is calculated on the basis of 1MB = 1-million
     bytes, and 1GB = 1-billion bytes.
    

    Background

    The integration of HDD with fast access speeds into car navigation
systems is increasing, especially in Japan, due to usability; fast screen
refresh and the ability to store such data as music and visual content. The
same trend is now being seen overseas, including Europe, and HDD-based car
navigation is expected to see global demand growth. Recently, alongside map
data, the need to store entertainment data for the enjoyment of rear seat
passengers is increasing, stimulating demand for higher capacity HDD.

    In this situation, Toshiba is meeting market needs with the industry's
largest(a) 80GB HDD for automotive application.

    Key Features of New Products

    1. PMR increases storage capacity and high level environmental durability

    Adoption of PMR achieves high-density recording at increased areal
density. This allows the 80GB MK8050GAC and MK8050GACE to offer twice the
capacity of current automotive HDD models(b). PMR also improves environmental
durability in respect of vibration, and low air pressure.

    2. High vibration resistance

    HDD used in automobiles needs two to three times the vibration resistance
of HDD in PC. Toshiba has reduced the weight of moving parts and increased the
rigidity of the enclosure, and added a new head positioning technology with an
acceleration sensor that predicts vibration the HDD will experience and
compensates the head position in real time. As a result, the new HDD have a
vibration resistance of 29.4m/s2 (5-50Hz), a full 50% improvement over
Toshiba's current automotive drives(b). Data stability is now assured even
under vibration conditions that would normally cause read or write error.

    3. High altitude operation

    The magnetic head of an HDD floats approximately 1/100,000mm above the
fast rotating disk. Large change in air pressure will affect the head flying
stability in HDD operation. By adopting the latest aerodynamic design
technology to head slider design, the new drives can read and write data even
in low pressure conditions at high altitude level. They can operate at up to
5,500m above sea level which is 1,200m higher than current automotive
models(b).

    (a) The industry's largest commercially available capacity in a 2.5-inch
hard disk drive for automotive application, as of November 28, 2007 (source:
Toshiba)

    (b) Comparison based on Toshiba's current 2.5-inch HDD (MK4036GAC).

    (c) January, 2007 to September, 2007 (source: Techno Systems Research)

    
    Main Specifications
    ----------------------------------------------------------------------
                Model                  MK8050GAC           MK4050GAC
    ----------------------------------------------------------------------
    Formatted capacity                   80GB                 40GB
    ----------------------------------------------------------------------
    Number of platters                               1
    ----------------------------------------------------------------------
    Number of heads                                  2
    ----------------------------------------------------------------------
    Average seek time                              16msec
    ----------------------------------------------------------------------
    Interface                                      ATA-7
    ----------------------------------------------------------------------
    Interface speed                               100 MB/s
    ----------------------------------------------------------------------
    Rotational speed                              4,200rpm
    ----------------------------------------------------------------------
    Dimensions(WxDxH)                        69.85x100.0x9.5mm
    ----------------------------------------------------------------------
    Weight                                       98 g(max)
    ----------------------------------------------------------------------
    Energy consumption efficiency      0.01W/GB             0.02W/GB
    ----------------------------------------------------------------------
                operating              -30 degrees C to +85 degrees C
    Temperature ----------------------------------------------------------
                non-operating          -40 degrees C to +95 degrees C
    ----------------------------------------------------------------------
                operating                     -300 to +5,500m
    Altitude    ----------------------------------------------------------
                non-operating                 -300 to +12,000m
    ----------------------------------------------------------------------
                                          29.4m/s2, 3G(5 to 50Hz)
                                 -----------------------------------------
    Vibration   operating                19.6m/s2, 2G(50 to 200Hz)
                                 -----------------------------------------
                                         9.8m/s2, 1G(200 to 500Hz)
                ----------------------------------------------------------
                non-operating             49m/s2, 5G(10 to 500Hz)
    ----------------------------------------------------------------------
    

    
                Model                 MK8050GACE           MK4050GACE
    ----------------------------------------------------------------------
    Formatted capacity                   80GB                 40GB
    ----------------------------------------------------------------------
    Number of platters                               1
    ----------------------------------------------------------------------
    Number of heads                                  2
    ----------------------------------------------------------------------
    Average seek time                              16msec
    ----------------------------------------------------------------------
    Interface                                      ATA-7
    ----------------------------------------------------------------------
    Interface speed                               100 MB/s
    ----------------------------------------------------------------------
    Rotational speed                              4,200rpm
    ----------------------------------------------------------------------
    Dimensions(WxDxH)                        69.85x100.0x9.5mm
    ----------------------------------------------------------------------
    Weight                                       98 g(max)
    ----------------------------------------------------------------------
    Energy consumption efficiency      0.01W/GB             0.02W/GB
    ----------------------------------------------------------------------
                operating              -20 degrees C to +70 degrees C
    Temperature ----------------------------------------------------------
                non-operating          -40 degrees C to +95 degrees C
    ----------------------------------------------------------------------
                operating                     -300 to +5,500m
    Altitude    ----------------------------------------------------------
                non-operating                 -300 to +12,000m
    ----------------------------------------------------------------------
                                          29.4m/s2, 3G(5 to 50Hz)
                                 -----------------------------------------
    Vibration   operating                19.6m/s2, 2G(50 to 200Hz)
                                 -----------------------------------------
                                         9.8m/s2, 1G(200 to 500Hz)
                ----------------------------------------------------------
                non-operating             49m/s2, 5G(10 to 500Hz)
    ----------------------------------------------------------------------
    




For further information:

For further information: Toshiba Corporation Yuko Sugahara,
+81-3-3457-2105 Corporate Communications Office Fax: +81-3-5444-9202
http://www.toshiba.co.jp/contact/media.htm

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