************************************************************ Miniscribe Disk Drive Specifications For Model: 8051A ************************************************************ FORM FACTOR 3.5 inch HH INTERFACE 16 BIT IDE DATA ENCODING METHOD 2,7 RLL DATA TRANSFER RATE (Mbit/Sec) 8.0 DISK DRIVE CHARACTERISTICS HEADS 4 CYLINDERS 745 SECTORS/TRACK (512 Byte Sectors) 28 WRITE PRECOMPENSATION CYLINDER NA*** REDUCED WRITE CURRENT CYLINDER NA*** MINIMUM STEP PULSE RATE NA*** UNFORMATTED BYTES/TRACK 17,220 RADIAL TRACK DENSITY (TPI) 1,109 ROTATIONAL SPEED (RPM) 3,484 UNFORMATTED CAPACITY (MBytes) 51.3 FORMATTED CAPACITY (Millions of Bytes) 42.7 FORMATTED CAP. (MB = 1,048,576 Bytes) 40.7 NA*** (NOT APPLICABLE TO IDE DRIVES) ACCESS TIMES (mSec)* SINGLE TRACK 8 AVERAGE OF ALL POSSIBLE SEEKS 28 MAXIMUM 60 *(INCLUDES SETTLING) POWER REQUIREMENTS DISSIPATION (Watts) TYPICAL 8.0 CURRENT (Amps) +5 V DC (+ or - 5%) 0.5 +12 V DC (+ or - 5%) 0.5 MAXIMUM STARTUP CURRENT 2.0 PHYSICAL DIMENSIONS HEIGHT (in) 1.625 WIDTH (in) 4 DEPTH (in) 5.75 WEIGHT (lbs) 1.43 OPERATIVE ENVIRONMENTAL LIMITS MINIMUM TEMPERATURE (Centigrade) 5 MAXIMUM TEMPERATURE (Centigrade) 50 THERMAL GRADIENT (Degrees C/Hour) 10 RELIABILITY MTBF (Hours) 30,000 MTTR (Minutes) 30 COMPONENT DESIGN LIFE (Years) 5 8051A DUAL DRIVE SUPPORT The 8051A operates in a MASTER SLAVE relationship. This enables the 8051A to be daisy-chained with another IDE drive (i.e. 7080A, 7040A, or another 8051A). 1: Jumpering J4.1 to J4.2 causes the 8051A to operate in the SLAVE role. 2: Jumpering J4.5 to J4.6 causes the 8051A to operate in the MASTER role. 3: Jumpering J4.3 to J4.4 This allows the 8051A to be compatable with some BIOS versions that cannot support 1:1 interleave. This jumper should not be installed under normal conditions. 4: Jumper J4.7 to J4.8 is not used and should not be installed. 5: Jumpering J4.9 to J4.10 enables the I/O ready signal onto the interface connector, pin 27. To operate the 8051A as the ONLY DRIVE in a system, J4.1 thru J4.10 should all be open (not jumpered) except as noted below. NOTE: The 8051A may be shipped with a jumper accross J4.1 and J4.3 this jumper has no effect but provides you with a spare.  ************************************************************ Miniscribe Disk Drive Specifications For Model: 8225A ************************************************************ FORM FACTOR 3.5 inch HH INTERFACE 16 BIT IDE DATA ENCODING METHOD 2,7 RLL DATA TRANSFER RATE (Mbit/Sec) 8.0 DISK DRIVE CHARACTERISTICS HEADS 2 CYLINDERS 747 SECTORS/TRACK (512 Byte Sectors) 28 WRITE PRECOMPENSATION CYLINDER NA*** REDUCED WRITE CURRENT CYLINDER NA*** MINIMUM STEP PULSE RATE NA*** UNFORMATTED BYTES/TRACK 16,666 RADIAL TRACK DENSITY (TPI) 898 ROTATIONAL SPEED (RPM) 3,600 UNFORMATTED CAPACITY (MBytes) 24.9 FORMATTED CAPACITY (Millions of Bytes) 21.4 FORMATTED CAP. (MB = 1,048,576 Bytes) 20.4 NA*** (NOT APPLICABLE TO IDE DRIVES) ACCESS TIMES (mSec)* SINGLE TRACK 12 AVERAGE OF ALL POSSIBLE SEEKS 40 MAXIMUM 90 *(INCLUDES SETTLING) POWER REQUIREMENTS DISSIPATION (Watts) TYPICAL 12.0 CURRENT (Amps) +5 V DC (+ or - 5%) 0.55 +12 V DC (+ or - 5%) 0.75 MAXIMUM STARTUP CURRENT 2.4 PHYSICAL DIMENSIONS HEIGHT (in) 1.625 WIDTH (in) 4 DEPTH (in) 5.75 WEIGHT (lbs) 1.63 OPERATIVE ENVIRONMENTAL LIMITS MINIMUM TEMPERATURE (Centigrade) 4 MAXIMUM TEMPERATURE (Centigrade) 50 THERMAL GRADIENT (Degrees C/Hour) 10 RELIABILITY MTBF (Hours) 30,000 MTTR (Minutes) 30 COMPONENT DESIGN LIFE (Years) 5  ************************************************************ Miniscribe Disk Drive Specifications For Model: 8450A ************************************************************ FORM FACTOR 3.5 inch HH INTERFACE 16 BIT IDE DATA ENCODING METHOD 2,7 RLL DATA TRANSFER RATE (Mbit/Sec) 8.0 DISK DRIVE CHARACTERISTICS HEADS 4 CYLINDERS 745 SECTORS/TRACK (512 Byte Sectors) 28 WRITE PRECOMPENSATION CYLINDER NA*** REDUCED WRITE CURRENT CYLINDER NA*** MINIMUM STEP PULSE RATE NA*** UNFORMATTED BYTES/TRACK 16,666 RADIAL TRACK DENSITY (TPI) 898 ROTATIONAL SPEED (RPM) 3,600 UNFORMATTED CAPACITY (MBytes) 49.7 FORMATTED CAPACITY (Millions of Bytes) 42.7 FORMATTED CAP. (MB = 1,048,576 Bytes) 40.7 NA*** (NOT APPLICABLE TO IDE DRIVES) ACCESS TIMES (mSec)* SINGLE TRACK 12 AVERAGE OF ALL POSSIBLE SEEKS 40 MAXIMUM 90 *(INCLUDES SETTLING) POWER REQUIREMENTS DISSIPATION (Watts) TYPICAL 12.0 CURRENT (Amps) +5 V DC (+ or - 5%) 0.55 +12 V DC (+ or - 5%) 0.75 MAXIMUM STARTUP CURRENT 2.4 PHYSICAL DIMENSIONS HEIGHT (in) 1.625 WIDTH (in) 4 DEPTH (in) 5.75 WEIGHT (lbs) 1.63 OPERATIVE ENVIRONMENTAL LIMITS MINIMUM TEMPERATURE (Centigrade) 4 MAXIMUM TEMPERATURE (Centigrade) 50 THERMAL GRADIENT (Degrees C/Hour) 10 RELIABILITY MTBF (Hours) 30,000 MTTR (Minutes) 30 COMPONENT DESIGN LIFE (Years) 5