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Text File  |  1993-03-11  |  4KB  |  83 lines
  1.  
  2.              ************************************************************
  3.                          Miniscribe Disk Drive Specifications
  4.                              MAXTOR 8051A IDE Drive
  5.              ************************************************************
  6.  
  7.              FORM FACTOR                            3.5 inch HH
  8.              INTERFACE                               16 BIT IDE
  9.              DATA ENCODING METHOD                       2,7 RLL
  10.              DATA TRANSFER RATE (Mbit/Sec)                  8.0
  11.  
  12.              DISK DRIVE CHARACTERISTICS
  13.                 HEADS                                         4
  14.                 CYLINDERS                                   745
  15.                 SECTORS/TRACK (512 Byte Sectors)             28
  16.                 WRITE PRECOMPENSATION CYLINDER            NA***
  17.                 REDUCED WRITE CURRENT CYLINDER            NA***
  18.                 MINIMUM STEP PULSE RATE                   NA***
  19.                 UNFORMATTED BYTES/TRACK                  17,220
  20.                 RADIAL TRACK DENSITY (TPI)                1,109
  21.                 ROTATIONAL SPEED (RPM)                    3,484
  22.                 UNFORMATTED CAPACITY (MBytes)              51.3
  23.                 FORMATTED CAPACITY (Millions of Bytes)     42.7
  24.                 FORMATTED CAP. (MB = 1,048,576 Bytes)      40.7
  25.                 NA*** (NOT APPLICABLE TO IDE DRIVES)
  26.  
  27.              ACCESS TIMES (mSec)*
  28.                 SINGLE TRACK                                  8
  29.                 AVERAGE OF ALL POSSIBLE SEEKS                28
  30.                 MAXIMUM                                      60
  31.              *(INCLUDES SETTLING)
  32.  
  33.              POWER REQUIREMENTS
  34.                 DISSIPATION (Watts)
  35.                    TYPICAL                                  8.0
  36.                 CURRENT (Amps)
  37.                    +5 V DC (+ or - 5%)                      0.5
  38.                    +12 V DC (+ or - 5%)                     0.5
  39.                    MAXIMUM STARTUP CURRENT                  2.0
  40.  
  41.              PHYSICAL DIMENSIONS
  42.                 HEIGHT (in)                               1.625
  43.                 WIDTH (in)                                    4
  44.                 DEPTH (in)                                 5.75
  45.                 WEIGHT (lbs)                               1.43
  46.  
  47.              OPERATIVE ENVIRONMENTAL LIMITS
  48.                 MINIMUM TEMPERATURE (Centigrade)              5
  49.                 MAXIMUM TEMPERATURE (Centigrade)             50
  50.                 THERMAL GRADIENT (Degrees C/Hour)            10
  51.  
  52.              RELIABILITY
  53.                 MTBF (Hours)                             30,000
  54.                 MTTR (Minutes)                               30
  55.                 COMPONENT DESIGN LIFE (Years)                 5
  56.  
  57.  
  58.                          8051A DUAL DRIVE SUPPORT
  59.  
  60.  
  61. The 8051A operates in a MASTER SLAVE relationship. This enables the 8051A to 
  62. be daisy-chained with another IDE drive (i.e. 7080A, 7040A, or another 8051A).
  63.  
  64. 1: Jumpering J4.1 to J4.2 causes the 8051A to operate in the SLAVE role.
  65.  
  66. 2: Jumpering J4.5 to J4.6 causes the 8051A to operate in the MASTER role.
  67.  
  68. 3: Jumpering J4.3 to J4.4 This allows the 8051A to be compatable with 
  69.    some BIOS versions that cannot support 1:1 interleave. This jumper 
  70.    should not be installed under normal conditions.
  71.  
  72. 4: Jumper J4.7 to J4.8 is not used and should not be installed.
  73.  
  74. 5: Jumpering J4.9 to J4.10 enables the I/O ready signal onto the 
  75.    interface connector, pin 27.     
  76.  
  77. To operate the 8051A as the ONLY DRIVE in a system, J4.1 thru J4.10 
  78. should all be open (not jumpered) except as noted below.
  79.  
  80. NOTE: The 8051A may be shipped with a jumper accross J4.1 and J4.3 
  81. this jumper has no effect but provides you with a spare. 
  82.  
  83.