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7 ELECTRICAL CHARACTERISTICS
7.4 Analog Circuit Characteristics
LCD drive circuit
The Typ. values of the LCD drive voltage shown in the following table shift in difference of panel load
(panel size, drive duty, display segment number, display pattern). Therefore, these should be evaluated
by connecting to the actual panel to be used. See "7.8 Characteristics Curves" for the load characteristics.
• TYPE A
Unless otherwise specified: V
Item
LCD drive voltage
Note) 1
Fixing the LCD contrast is not recommended. A contrast adjustment function should be included in the software.
• TYPE B
Unless otherwise specified: V
Item
LCD drive voltage
Note) 1
Fixing the LCD contrast is not recommended. A contrast adjustment function should be included in the software.
124
= V
(LCX = FH) + 0.1 to 5.5 V, V
DD
C2
Symbol
V
When 1 MΩ load resistor is connected
C2
between V
V
When 1 MΩ load
C5
TYPE A
resistor is connected
between V
(no panel load)
= V
(LCX = FH) + 0.1 to 5.5 V, V
DD
C2
Symbol
V
When 1 MΩ load resistor is connected
C2
between V
SS
V
When 1 MΩ load
C5
TYPE B
resistor is connected
between V
SS
(no panel load)
= 0 V, Ta = 25°C, C
SS
Condition
and V
(no panel load)
SS
C2
LCX = 0H
LCX = 1H
and V
LCX = 2H
SS
C5
LCX = 3H
LCX = 4H
LCX = 5H
LCX = 6H
LCX = 7H
Typ×0.94
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
= 0 V, Ta = 25°C, C
SS
Condition
and V
(no panel load)
C2
LCX = 0H
LCX = 1H
and V
LCX = 2H
C5
LCX = 3H
LCX = 4H
LCX = 5H
LCX = 6H
LCX = 7H
Typ×0.94
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
EPSON
= 0.1 µF
–C
1
10
Min.
Typ.
Max.
0.412V
C5
3.61
3.76
3.88
4.00
4.12
4.27
4.39
4.51
Typ×1.06
4.63
4.75
4.90
5.02
5.14
5.26
5.38
5.53
= 0.1 µF
–C
1
10
Min.
Typ.
Max.
0.412V
C5
4.20
4.34
4.49
4.63
4.78
4.92
5.07
5.21
Typ×1.06
5.36
5.50
5.65
5.80
5.94
6.09
6.23
6.38
E0C88832/88862 TECHNICAL MANUAL
Unit
Note
V
V
1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Unit
Note
V
V
1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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