Commodore 8250LP - I. GENERAL; Description; II. CAPACITY; Encode Method

I. GENERAL
II.
Description
The JU-570 is a 1. 625" High (1/2 Hight) doub le-sided double-clensi ty
100 TPI minifloppy diskette drive. It contains a band actuator,
a DC direct drive motor, bicompliant read/write head geometry, track
o detector index detector, write protect switch, ~/W electronics and
motor speed control electronics.
CAPACITY
Sin~le
Density Double
Density
A. Encode
Method
n{
~tF1>1
B.
Unformatted
Bits/Diskette 4,000
,
000
8,000,000
Bits/!rack
25 ,000 50,000
C.
Formatted 16 Records/Track
(Hard
or Soft)
Bits/Diskette 2,621,440
5,242,880
Bits/l'rack 16,384 32,768
Bits/Sector
1,024 2,048
D. Formatted
10
Records/Track (Hard or Soft)
Bits/Diskette
3,276,800
6,553,600
Bits/Track
20,480 40,960
Bits/Sector
2,048
4,096
E.
Formatted 18
Records/l'rack (Soft)
Bits/Diskette
2,949,120
5,998,240
Bi ts/Track
18,432
36,864
F. Transfer
Rate
Bits/Second
125K
250K
Bytes/Second
15.f)25K
31. 25K
III ~!E.DIA
Diskette
Mcr recommended Minidiskette for double-sided double-density double
track dri '.-e.
( 2)