Commodore 64 Handbook page 90

User I/O
Pin Type Note
1 G N D
2
+ 5V M A X . 100 m A
3 RESET
4
CNT1
5 SP1
6 C N T2
7
SP2
8 PC2
9
SER . ATN IN
10 9 VAC M A X . 100 m A
1 1
9 VAC
M A X . 100 m A
12 G N D
Pin
Type Note
A
G N D
B
FLA G2
C PBO
D
PB1
E PB2
F
PB3
H PB4
J PB5
K
PB6
L PB7
M
PA2
N G N D
1 2
3 4 5 6 7 8 9
10 11 12
A B C D E F H J K L M N
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