Device Overview
1-2
C141-E145-02EN
1.1 Features
1.1.1 Functions and performance
The following features of the MHR Series are described.
(1) Compact
The MHR Series has 1 disk or 2 disks of 65 mm (2.5 inches) diameter, and its
height is 9.5 mm (0.374 inch).
(2) Large capacity
The disk drive can record up to 20 GB (formatted) on one disk using the 48/50
RLL recording method and 30 recording zone technology. The MHR Series has a
formatted capacity of 40 GB (MHR2040AT), 30 GB (MHR2030AT), 20 GB
(MHR2020AT) and 10 GB (MHR2010AT) respectively.
(3) High-speed Transfer rate
The disk drives (the MHR Series) have an internal data rate up to 32.5 MB/s. The
disk drive supports an external data rate up to 100 MB/s (U-DMA mode 5).
(4) Average positioning time
Use of a rotary voice coil motor in the head positioning mechanism greatly
increases the positioning speed. The average positioning time is 12 ms (at read).
1.1.2 Adaptability
(1) Power save mode
The power save mode feature for idle operation, stand by and sleep modes makes
The disk drives (the MHR Series) ideal for applications where power
consumption is a factor.
(2) Wide temperature range
The disk drives (the MHR Series) can be used over a wide temperature range (5°C
to 55°C).
(3) Low noise and vibration
In Ready status, the noise of the disk drives (the MHR Series) is only 24 dBA
(measured at 0.3 m apart from the drive under the idle mode).
(4) High resistance against shock
The Load/Unload mechanism is highly resistant against non-operation shock up
to 8820 m/s
2
(900G).
Summary of Contents for MHR2010AT
Page 1: ...C141 E145 02EN MHR2040AT MHR2030AT MHR2020AT MHR2010AT DISK DRIVES PRODUCT MANUAL ...
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Page 58: ...Theory of Device Operation 4 6 C141 E145 02EN Figure 4 3 Circuit Configuration ...
Page 188: ...Interface 5 114 C141 E145 02EN g d f f d e Figure 5 7 Normal DMA data transfer ...
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