HCD-EC68/EC78
43
Pin No. Pin Name I/O Description
57 O-TU-DI O Serial data output to the FM/AM DET
58 VLCD -
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
age
59 to 62
COM0, COM1, CMO2,
CMO3
O Common drive signal output to the liquid crystal display
63, 64 SEG0, SEG1 O Segment drive signal output to the liquid crystal display
65 VCC - Power supply terminal (+3.1V)
66 VSS - Ground terminal
67 to 89 SEG2 to SEG24 O Segment drive signal output to the liquid crystal display
90 VCC - Power supply terminal (+3.1V)
91 VSS - Ground terminal
92 X1 I Main system clock output terminal (6 MHz)
93 X0 O Main system clock input terminal (6 MHz)
94 to 100 SEG25 to SEG31 O Segment drive signal output to the liquid crystal display
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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