Specifications
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Following are the specifications for the floppy disk drive.

Feature Specification
Functional
Unformatted
Recording Capacity
  • High density (2.0-MB mode): 2.00/1.00 MB
  • High density(1.6-MB mode): 1.67/0.83 MB
  • Normal density(1.0-MB mode): 1.00/0.50 MB
    		•
    Formatted
    Recording Capacity
  • High density (2.0-MB mode): 1,440 KB (512-byte, 18-sector); 720 KB (256-byte, 18-sector)
  • High density (1.6-MB mode): 1,280 KB (1,024-byte, 8-sector); 640-KB (512-Byte, 8-Sector)
  • Normal density (1.0-MB mode): 640 KB (256-byte, 16-sector); 320 KB (128-byte, 16-sector)(typical)
    		•
    Data Transfer Rate (MFM/FM)
    (Inner Most Track)
  • High density (2.0-MB mode): 500/250 Kbps
  • High density(1.6-MB mode): 500/250 Kbps
  • Normal density(1.0-MB mode): 250/125 Kbps
    		•
    Disk Speed
  • High density (2.0-MB mode): 300 rpm
  • High density(1.6-MB mode): 360 rpm
  • Normal density(1.0-MB mode): 300 rpm
    		•
    Number of Tracks
  • High density (2.0-MB mode): 160 (80 tracks × 2 sides)
  • High density(1.6-MB mode): 160 (80 tracks × 2 sides)
  • Normal density(1.0-MB mode): 160 (80 tracks × 2 sides)
    		•
    Maximum Bit Density
  • High density (2.0-MB mode): 15,916/7,958 ftprad; (17,434/8,717 bpi)
  • High density(1.6-MB mode): 13,262/6,631 ftprad; (14,528/7,264 bpi)
  • Normal density(1.0-MB mode): 7,958/3,979 ftprad; (8,717/4,359 bpi)
    • General
    Seek Time
    (Track to Track)    		 3 ms
    Head Setting Time 15 ms
    Tracks Density 5.33 tpmm (135 TPI)
    Recording Mode MFM/FM
    Start Time 500 ms
    Media
  • High density mode: 3.5-inch double sided high-density disks (2HD)
  • Normal density Mode: 3.5-inch double sided double density disks (2DD)
    		•
    Power Requirements
    Voltage +5.0 V
    (4.5 - 5.5 V)
    Operating Current
  • Seek: 1,080 mA (maximum); 725 mA (typical)
  • Read: 405 mA (maximum); 280 mA (typical)
  • Standby: 9.5 mA (maximum); 3 mA (typical)
  • At motor start: 1,000 mA (maximum); 700 mA (typical)
    		•
    Power Consumption
  • Standby: 0.015 W (typical)
  • Steady: 1.4 W (typical)
    		•
    Reliability
    MTTF 15,000 POH
    Error Rates
  • Soft (recoverable): 109 Time/bit
  • Hard (unrecoverable): 1012 time/bit
    		•
    Media Loading 15,000 or more times
    Disk Life
    (Passes/Track)    		 3 × 10 6
    Temperature
  • Operating: 4 to 50° C
  • Non-operating: –20 to 60° C
    		•
    Humidity
  • Operating: 20 to 80%
  • Non-operating: 10 to 90%
    		•
    Dimensions
    (H × W × D)
  • 25.4 × 101.6 × 146 mm (without bezel)
  • 25.4 × 101.6 × 150 mm (with bezel)
    		•
    Weight 430 grams