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PD765A/B
The uPD765 is Floppy Disc Controller (FDC) IC.
Pinout:
|
RESET
RD
WR
CS
D/S
D0
D1
D2
D3
D4
D5
D6
D7
DRQ
DAQ
TC
IDX
INT
CLK
(0V) GND
|
1 ° 40
2 39
3 38
4 37
5 36
6 35
7 34
8 33
9 32
10 31
11 30
12 29
13 28
14 27
15 26
16 25
17 24
18 23
19 22
20 21
|
VCC (+5V)
RW/SEEK
LCT/DIR
FR/STP
HDL
RDY
WP/TS
FLT/TR0
PS0
PS1
WDA
US0
US1
HD
MFM
WE
VCO/SYNC
RDD
RDW
WCK
|