HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 347

• Manufacturer Part Number: HD6473834HV
• Description: MCU 5V 32K PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473834HV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 71
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.3.5
When a large LCD panel is driven, or if segments are expanded externally, the built-in power
supply capacity may be insufficient, making it necessary to lower the power supply impedance.
One method, shown in figure 13.12, is to connect a bypass capacitor of around 0.1 µF to 0.3 µF to
pins V
voltage divider externally.
330
1
, V
Boosting the LCD Driver Power Supply
2
, and V
Figure 13.14 Connecting an External Resistive Voltage Divider
3
. Another approach, shown in figure 13.14 below, is to connect a resistive
H8/3834
V
V
CC
SS
V
V
V
1
2
3
R
R
R
R
R = several k
C = 0.1 F to 0.3 F