************************************************************ Miniscribe Disk Drive Specifications For Model: 8225 ************************************************************ FORM FACTOR 3.5 inch HH INTERFACE ST412/ST506 DATA ENCODING METHOD 2,7 RLL DATA TRANSFER RATE (Mbit/Sec) 7.5 DISK DRIVE CHARACTERISTICS HEADS 2 CYLINDERS 771 SECTORS/TRACK (512 Byte Sectors) 26 UNFORMATTED BYTES/TRACK 15,625 RADIAL TRACK DENSITY (TPI) 898 ROTATIONAL SPEED (RPM) 3,600 UNFORMATTED CAPACITY (MBytes) 24.1 FORMATTED CAPACITY (MBytes) 20.5 ACCESS TIMES (mSec)* SINGLE TRACK 14 ONE-THIRD STROKE** 45 MAXIMUM 100 *(BASED ON A 6 MICRO-SECOND STEP RATE) *(INCLUDES SETTLING) **(APPROXIMATION OF AVERAGE) POWER REQUIREMENTS DISSIPATION (Watts) TYPICAL 12.5 MAXIMUM 13.0 CURRENT (Amps) +5 V DC (+ or - 5%) 0.45 +12 V DC (+ or - 5%) 0.67 MAXIMUM STARTUP CURRENT 2.3 PHYSICAL DIMENSIONS HEIGHT (in) 1.625 WIDTH (in) 4 DEPTH (in) 5.75 WEIGHT (lbs) 1.8 OPERATIVE ENVIRONMENTAL LIMITS MINIMUM TEMPERATURE (Centigrade) 10 MAXIMUM TEMPERATURE (Centigrade) 50 THERMAL GRADIENT (Degrees C/Hour) 10 RELIABILITY MTBF (Hours) 20,000 MTTR (Minutes) 30 COMPONENT DESIGN LIFE (Years) 5