Filter
Top Products
SEMA ELECTRONICS CO.,LTD
FLOPPY DISK DRIVE SPECIFICATION
PAG E 22
MODEL
SFD-321B
6. TIMING DIAGRAM
6.1 Seek Operation Timing
6.2 Read / Write Operation Timing
REVERSE
FORWARD
1
㎲
Min.
1
㎲
Min.
1
㎲
Min.
10
㎲
Max.
2.8
㎳
Max.
18
㎳
Min. (*1)
500
㎱
Min.
3
㎳
Min.
DRIVE SELECT
DIRECTION
SELECT
STEP
TRA CK 00
<No te >
(*1) Turn Around Time is 18 ms Min. when Direction is changed.
(
*
2) 750
㎲
Min. (including 100
㎲
Sid e Se lect timing )
(*3) When spindle motor speed is changed (300 rpm
↔
360 rpm)
this value i s 500 ms Min.
650
㎲
Min.
650
㎲
Min.
0.3
㎳
Max.
600
㎳
Max.
(*2)
MOTOR ON
DRIVE SELECT
READY
STEP
READ DATA
WRITE GA T E
WRITE DATA
DENSIT Y
SELECT
100
㎲
Min. (*3)
(*2)
100
㎲
Min. (*3)
100
㎲
Min (*3)
18 ms Min.
0Min.
18 ms Min.
0Min.
8
㎲
Max.
(*2)
8
㎲
Max.