hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 370

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

13.3.7
When a large panel is driven, the on-chip power supply capacity may be insufficient. If the power
supply capacity is insufficient when using the step-up constant power supply (5 V), either use V
as the power supply or use an external power supply circuit. If the power supply capacity is
insufficient when V
This can be done by connecting bypass capacitors of around 0.1 to 0.3 µF to pins V
shown in figure 13.17, or by adding a split-resistance externally.
H8/3864 Series
Boosting the LCD Drive Power Supply
V
V
CC
CC
SS
Figure 13.17 Connection of External Split-Resistance
is used as the power supply, the power supply impedance must be reduced.
V
V
V
V
0
1
2
3
R
R
R
R = several k to
several M
C= 0.1 to 0.3 F
1
to V
3
, as
355
CC