Micropolis 1350-Series




Model Number
	1353	1353A	1354	1354A	1355
Unformatted Capacity (MBytes) 85.3 106.6 127.9 149.3 170.6
Read/Write Heads 4 5 6 7 8
Formatted Capacity (MBytes) 75.4 94.2 113.1 131.9 150.8
(All other specs are common for all members of the 1550 Series) Bytes per Sector 512
Sectors per Track 36
Cylinders 1,024
Bytes per Track 20,832
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: 1300 series, 1320 series, 1370 series


Platters and r/w-heads of an openened hard-disk-drive
Opened Micropolis 1325 hard-disk-drive, showing data surfaces (platters) and r/w-heads
Illustration from the Micropolis Data Storage Guide


	Seek Time (including settling time)
Track-to-Track 5 msec
Average 23 msec
Maximum 50 msec
Avg. Rotational Latency 8.33 msec
Rotational Speed 3600 rpm +/- 0.5%
Data Transfer Rate 10 Mbits/sec
MTBF (power-on hours) 30,000
Positioner Fully balanced rotary voice coil
Parking Automatic park and lock

General Functional Specifications

	Form-Factor				5 1/4-inch, "full-height"
Interface ESDI
Sectoring Hard or Soft (set by W1, see Configuration Information)
Write Precompensation Start Cylinder 1024 * Reduced Write Current Start Cylinder 1024 * * These are effectively turned off by specifying a non-existent cylinder. Some systems accomplish this by using a value of "-1".
Landing Zone 1024
Mounting Plane Any orientation
Drivers/Receivers Single-ended

Power Requirements

	+12V +/-5%				2.0 A average
+12V +/-5% (max. during start-up) 4.25 A
+5V +/-5% (average) 2.0 A
Power Dissipation, typical 32 Watts

Drive Configuration Information

(Board Layout and Jumper Options)

Drive Warranty Information