Micropolis 1518-Models

DRIVE SERIES SPECIFICATIONS

DRIVE SPECIFICATIONS - Model 1518

Capacity

Unformatted Capacity (MBytes)			1531

Read/Write Heads				15

Cylinders					2,100

Formatted Capacity		1024-Byte Format	512-Byte Format

	Total Capacity		1419.2	MBytes		1338.6 MBytes

	Sectors/Track		44			83
	Bytes/Track		45,056			42,496
	MBytes/Surface		94.6			89.2

Performance

Seek Time (including settling time)

	Track-to-Track		4 msec

	Average			14.5 msec

	One Third Stroke	15.5 msec

	Maximum (Full Stroke)	33 msec


Rotational Latency		
	Average			8.33 msec

	Nominal Maximum		16.67 msec

Rotational Speed		3600 rpm +/- 0.5%


Interface encoding method	NRZ

Internal encoding method	RLL

Data Transfer Rate		23.33 Mbits/sec

MTBF (power-on hours)		150,000


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 Sectoring
				(To set Format, see Configuration)

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)			1.5 A


Power Dissipation, typical		22 Watts

Drive Configuration Information

(Board Layout and Jumper Options)

Drive Warranty Information