Kenwood TH-77A Service Manual page 23

Microcomputer 75116GF-674-3BE (Control unit IC10
75116GF-675-3BE (Control unit 1C10
Pin Functions
P41
P40
P53
P52
PS!
P50
RESET
x< Nn
P63
P62
P6I
P60
P73
P72
P7I
P70
P83
P82
oMWNn oanh wn
O P42
<Q P43
P8IO
IH-f/A/E
SEMICONDUCTOR DATA
P80 O
jC) P30
22 23 24 25 26 27
P930
O P31 O P32
O P33
O Voo O NC
61 60 59 58
OP140 OP1I4I1
):
):
M,
K,
OP 142
O P143 OP130
X, T,
P
57 56 55 54 53
75116GF-674-3BE
75116GF-675-3BE
P920 P9IO P900 Vss O
PI3Z/INT3 O
PI2/INT2 ©
PIIZINT | O
28 29 30 31 32
N
o
x
-
a
PIO/INTO O
PTHO3 O
E
OPI3I
O P132
O P133
OP!20
OP121
461-0 P122
P123
POO/INT4
POI1/SCK
P02/S0
PO3/SI
P20/PTOO
P21/PTO!
P22/PCL
P23
Tih
TIO
PTHOO
O PTHOI
23