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10.2. Display Block
IC901 : YEAMLC75853NW
Pin No.
Port
1-35
SEG1-35
LCD segment
36-39
NC
No connection
40-43
COM1-4
LCD common
44-49
KS1-6
Key data output
50-54
KI1-5
Key data input
55
TEST
(Connecting to ground)
56
VDD
+5V power supply
57
VDD1
Ground through capacitor
58
VDD2
Ground through capacitor
59
Vss
Ground
60
OSC
CR oscillator
61
DO
Key data output
62
CE
Chip enable
63
CLK
LCD clock
64
DI
LCD data input
Descriptions
I/O
(V)
(V)
O
2.5
-
O
2.5
O
0.9
I
-
-
5.1
-
3.3
-
1.7
-
-
3.9
O
4.4
I
I
I
-
0
0
0
0
0
0
7
CQ-C1001W1
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