Micropolis 1538-Models

DRIVE SERIES SPECIFICATIONS

DRIVE SPECIFICATIONS - MODEL 1538

Capacity

Unformatted Capacity (MBytes)			1043.0

Read/Write Heads				15

Cylinders					1,669

Formatted Capacity		1024-Byte Format	512-Byte Format

	Total Capacity		974.1	MBytes		910.0 MBytes

	Sectors/Track		38			71
	Bytes/Track		38,912			36352
	MBytes/Surface		64.94			60.66

Performance

Data Rate

	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 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% (average)			1.8 A

	+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