Service Manuals, User Guides, Schematic Diagrams or docs for : Hitachi disk Hitachi Travelstar DK23EA and DK23EB

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2.5 inch ATA-5 hard disk drives
Capacities: 20, 30, 40 & 60 GB

Hitachi Travelstar DK23EA / DK23EB
hard disk drives

Highlights
              20, 30, 40 or 60 GB 4200 RPM in 9.5mm high package for
              maximum capacity slimline portable applications

              40GB 5400 RPM in 9.5mm high package for applications
              that require increased performance

              250G/2ms operating shock

              ATA-5 interface with 2048kB read/write cache

              Ultra DMA mode 5 (100 MB/s max.) supported

              GMR head and MEEPRML read channel technology

              32-bit RISC microprocessor, Shock sensor, SMART

              Use of Fluid Dynamic Bearing Motor to improve Acoustic
               and shock characteristics
Hitachi Travelstar DK23EA specifications
Product                             Hitachi Travelstar DK23EA series
Model                               Travelstar DK23EA-60 Travelstar DK23EA-40 Travelstar DK23EA-30

Performance                                                                                               Hitachi Global Storage Technologies
Total Capacity
Formatted                           60.011 GB                40.007 GB              30.005 GB
Per Sector                          512                      512                    512
Number of Cylinders                 42,091                   42,091                 42,091
Number of Disks                     2                        2                      1
Number of Heads                     4                        3                      2

Seek Time (Nominal)
1 Track                             3ms                     3ms                     3ms
Average                             13ms                    13ms                    13ms
Full Track                          24ms                    24ms                    24ms

Average Latency                     71ms
                                     .                       71ms
                                                              .                     71ms
                                                                                     .
Rotational Speed                    4,200 RPM                4,200 RPM              4,200 RPM

Read Technology                     ME2PRML, ID-Less Format

Internal Transfer Rate              22. 

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