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Text File  |  1989-09-15  |  3KB  |  58 lines
  1.  
  2.              ************************************************************
  3.                          Miniscribe Disk Drive Specifications
  4.                                         For
  5.                                     Model: 8450A
  6.              ************************************************************
  7.  
  8.              FORM FACTOR                            3.5 inch HH
  9.              INTERFACE                               16 BIT IDE
  10.              DATA ENCODING METHOD                       2,7 RLL
  11.              DATA TRANSFER RATE (Mbit/Sec)                  8.0
  12.  
  13.              DISK DRIVE CHARACTERISTICS
  14.                 HEADS                                         4
  15.                 CYLINDERS                                   745
  16.                 SECTORS/TRACK (512 Byte Sectors)             28
  17.                 WRITE PRECOMPENSATION CYLINDER            NA***
  18.                 REDUCED WRITE CURRENT CYLINDER            NA***
  19.                 MINIMUM STEP PULSE RATE                   NA***
  20.                 UNFORMATTED BYTES/TRACK                  16,666
  21.                 RADIAL TRACK DENSITY (TPI)                  898
  22.                 ROTATIONAL SPEED (RPM)                    3,600
  23.                 UNFORMATTED CAPACITY (MBytes)              49.7
  24.                 FORMATTED CAPACITY (Millions of Bytes)     42.7
  25.                 FORMATTED CAP. (MB = 1,048,576 Bytes)      40.7
  26.                 NA*** (NOT APPLICABLE TO IDE DRIVES)
  27.  
  28.              ACCESS TIMES (mSec)*
  29.                 SINGLE TRACK                                 12
  30.                 AVERAGE OF ALL POSSIBLE SEEKS                40
  31.                 MAXIMUM                                      90
  32.              *(INCLUDES SETTLING)
  33.  
  34.              POWER REQUIREMENTS
  35.                 DISSIPATION (Watts)
  36.                    TYPICAL                                 12.0
  37.                 CURRENT (Amps)
  38.                    +5 V DC (+ or - 5%)                     0.55
  39.                    +12 V DC (+ or - 5%)                    0.75
  40.                    MAXIMUM STARTUP CURRENT                  2.4
  41.  
  42.              PHYSICAL DIMENSIONS
  43.                 HEIGHT (in)                               1.625
  44.                 WIDTH (in)                                    4
  45.                 DEPTH (in)                                 5.75
  46.                 WEIGHT (lbs)                               1.63
  47.  
  48.              OPERATIVE ENVIRONMENTAL LIMITS
  49.                 MINIMUM TEMPERATURE (Centigrade)              4
  50.                 MAXIMUM TEMPERATURE (Centigrade)             50
  51.                 THERMAL GRADIENT (Degrees C/Hour)            10
  52.  
  53.              RELIABILITY
  54.                 MTBF (Hours)                             30,000
  55.                 MTTR (Minutes)                               30
  56.                 COMPONENT DESIGN LIFE (Years)                 5
  57.  
  58.