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6.2. Display Block
IC903 : YEAMPD32B015
Pin No.
Name
Description
I / O Vol.(V)
1
IDCH GREEN
LED
LED
-
-
5.2
2
IDCH RED LED
-
-
5.2
3,4
NC
No Connection
-
-
5
VSS
(Connecting to Ground)
-
0
6
VLC5
LCD Control Voltage 5
I
0
7
VLC4
LCD Control Voltage 4
I
2.2
8
VLC3
LCD Control Voltage 3
I
4.2
9
VLC2
LCD Control Voltage 2
I
4.2
10
VLC1
LCD Control Voltage 1
I
6.2
11
VLC0
LCD Drive Voltage
I
8.2
12
VDD
(Connecting to +5V)
-
5.2
13
SYNC
Syncronize Input
-
5.2
14
LCD OFF
LCD Control (LCD Off)
I
4.7
15
RESET
Reset
I
5.2
16
KEY REQ
Key Request Output
O
0
17
SCK
Shift Control Clock Input
I
0
18
DATA
Data In/Out
I/O
5.2
19
STB
Strobe Input
I
0
20
OSC IN
Oscillator Input
I
2.7
21
OSC OUT
Oscillator Output
O
3.0
22 - 25 KEY1 - KEY4
Key Scan Input
I
1.7
26 - 31 SEG1A/KS1 -
SEG6A/KS6
Segment/Key Scan Output
O
4.2
32 - 90 SEG7A -
SEG65A
Segment Output
O
4.2
91,92
COM9 COM8
(NC)
(NC)
No Connection
-
-
93 -
100
COM7A -
COM0A
COM0A
Common 7A - 0A
O
3.5
IC904 : C0HBA0000093
Pin No.
Port
Descriptions
I/O
(V)
1-73
SEG1B-
SEG73B
SEG73B
LCD segment
O
3.6
74-77
COM4-COM1
LCD common
O
3.6
78-83
-
No Connection
-
-
84-88
KI1-KI5
Ground
-
0
89
VDD
Power supply +5V
-
5.2
90
VLCD
LCD drive reference
voltage(VDD)
voltage(VDD)
I
7.1
91
VLCD1
LCD drive reference voltage
1
1
4.8
92
VLCD2
LCD drive reference voltage
2
2
2.5
93
VSS
Ground
-
0
94
TEST
Ground
-
0
95
OSC
CR Oshiretar
I
0
96
RES
-
-
4.8
97
DO
LCD data
O
5.2
98
CE
LCD chip enable
I
0
99
CL
LCD clock
I
0
100
DI
LCD data
I
4.0
7
HONDA / CQ-EH8482TA
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