Models: DMCA-21080 and DMCA-21440

Features

• Magneto resistive head
• No-ID sector formatting
• PIO data transfer - mode 4
• DMA data transfer
  Single word mode - mode 2
  Multiword mode - mode 2
• Enhanced ECC on the fly
• S.M.A.R.T. function

Configuration

  Interface                          IDE
  Formated capacity                  1080/1440 MB
  Sector size                        512 Bytes
  Sectors/track (logical)            63
  Head number (logical)              16
  Cylinder number  (logical)         2100/2800
  Customer usable data sectors       2,116,800/2,822,400
  Disks                              2
  Recording zones                    8
  Areal density average (max)        1.29 Gb/sq.in.
  Recording density (Kbpi)(max)      150.5
  Track density                      8600 TPI


Performance

  Rotational speed                   4000 RPM
  Media transfer rate                61.8 (OD)/39.5 (ID) Mb/sec
  Data buffer                        96 KB
  Interface transfer rate (max)      16.6 MB/sec
  Latency average                    7.5 msec
  Seek time (typical)
    Average (read)                   13 msec
    Track to track                   4 msec
    Full track (read)                23.0 msec
  Spin up (typical)                  2.3 sec


Power

  Requirements                       +5 volts
  Power supply ripple (0-20) max     100 mV p-p *1
  Tolerance                          +(-)5%     *2
  Dissipation (typical)
    Idle                             0.85 Watts   0.17 A RMS  *3
    Read/Write                       2.3 Watts    0.46 A RMS
    Seek                             2.3 Watts    0.46 A RMS  *4
    Standby                          0.3 Watts    0.06 A RMS
    Sleep                            0.1 Watts    0.02 A RMS
    Start up (maximum peak)          4.7 Watts    0.94 A RMS  *5
    Start up (average to ready)      3.5 Watts    0.70 A RMS  *6
  Supply rise time                   7 - 100 msec


Physical size

  Height                             12.5 mm
  Width                              70 mm
  Depth                              100 mm
  Weight (max)                       140 g


Environmental characteristics

  Altitude
    Operating                             -300 to 3000 m
    Ship / store                          -300 to 12000 m

  Temperature
    Operating                             5 to 55 C
    Storage                               0 to 65 C
    Shipping                              -40 to 65 C
    Temperature gradient (max)            15 C / hour
      (Operating, storage or shipping)

  Operating
    Ambient temperature                   5 to 55 C
    Relative humidity  (non-condensing)   8% to 90%
    Maximum wet bulb   (non-condensing)   29.4 C
    Shock              (half-sine wave)   100 G/2 msec
    Vibration random   (RMS)              0.67 G (5-500 Hz)

  Non-Operating
    Ambient temperature                   0 to 65 C
    Relative humidity  (non-condensing)   5% to 95%
    Maximum wet bulb   (non-condensing)   40 C
    Shock              (half-sine wave)   500 G/2 msec
    Vibration random   (RMS)              1.04 G (2-200 Hz)

Notes:

1. The maximum supply ripple is measured at the 5 V input on the drive.
2. The drive shall not incur damage for an over voltage condition of +25% (maximum duration of 20ms) on the 5 V nominal supply.
3. The idle current is specified at inner track.
4. The read/write current is specified based on three operations of 63 sector read/write per 100 ms.
5. The seek average current is specified based on three operations per 100 ms
6. The worst case operating current includes motor surge.