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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
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