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Device Overview
(7) Write cache
When the disk drive receives a write command, the disk drive posts the command
completion at completion of transferring data to the data buffer completion of
writing to the disk media. This feature reduces the access time at writing.
1.2 Device Specifications
1.2.1 Specifications summary
Table 1.1 shows the specifications of the disk drives.
Table 1.1 Specifications (1 of 2)
MHW2080AT MHW2060AT MHW2040AT
Format Capacity (*1)
80 GB
60 GB
40 GB
Number of Sectors (User)
156,301,488
117,210,240
78,140,160
Bytes per Sector
512 bytes
Rotational Speed
4,200 rpm ± 1%
Average Latency
7.14 ms
Positioning time (read
and seek)
Minimum (Track-Track)
Average
Maximum (Full)
1.5 ms (typ.)
Read: 12ms (typ.)
22 ms (typ.)
Start time
3.5 sec (typ.)
Interface
ATA-6/ATA-7 (Max. Cable length: 18inches (0.46 m))
(equipped with expansion function)
Data Transfer Rate (*1)
To/From Media
To/From Host
56.4 MB/s Max.
100 MB/s Max (U-DMA mode5)
Data Buffer Size (*2)
2 MB (2,097,152 bytes)
Physical Dimensions
(Height
×
Width
×
Depth)
9.5 mm
×
100.0 mm
×
70.0 mm
Weight
96 g (max)
*1: 1GB is equal to 1,000,000,000 bytes and 1MB is equal to 1,000,000 bytes.
*2: 1MB is equal to 1,048,576 bytes.
1-4
C141-E250
Содержание MHW2040AT - Mobile 40 GB Hard Drive
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