Micropolis 1300-Series




Model Number
	1302	 	1303	 	1304
Unformatted Capacity (MBytes) 25.9 43.2 51.9
Disk Platters 2 3 4
Read/Write Heads 3 5 6
Formatted Capacity (MBytes; 32 Sectors, 256 Bytes per Sector) 20.4 34.0 40.8
(All other specs are common for all members of the 1300 Series) Bytes per Track 8,192
MBytes per Surface 6.8
Note that all drives from 13xx series are based on the same chassis. Please refer to other models, like model 1325 and the respective series overview pages for more technical info: 1320 series, 1350 series, 1370 series

The 1300 series are MFM drives with an ST-412 interface.

PC Drive Types

Examine the entries in your system drive table and find the type that most resembles the head and cylinder parameters of the drive without exceeding these parameters. If you are using third-party installation/partitioning software, follow the instructions included with the software, as it may perform this step automatically.


Data Rate

	Seek Time (including settling time)
Track-to-Track 6 msec
Average 30 msec
Maximum 60 msec
Avg. Rotational Latency 8.33 msec
Rotational Speed 3600 rpm +/- 0.5%
Data Transfer Rate 5 Mbits/sec
Optimum Step Rate 20 microseconds or faster (buffered seek)
MTBF (power-on hours) 20,000
Positioner Fully balanced rotary voice coil
Parking Automatic park and lock

General Functional Specifications

	Form-Factor				5 1/4-inch, "full-height"
Interface ST-506/412
Encoding Method MFM (Modified Frequency Modulation) Although these drives may be capable of functioning in an RLL environment, Micropolis does not certify or warrant them for this application.
Sectoring Soft
Write Precompensation Start Cylinder 830 Reduced Write Current Start Cylinder 830 Landing Zone 830
Mounting Plane Any orientation

Power Requirements

	+12V +/-5% (average, idle)		1.9 A
+12V +/-5% (average, seeking) 2.9 A
+12V +/-5% (max. during start-up) 3.7 A
+5V +/-5% (average) 0.9 A
Power Dissipation, Stand-by 27 Watts
Power Dissipation, Positioning 35 Watts

Drive Configuration Information

(Board Layout and Jumper Options)

Drive Warranty Information