HD6473834HV Renesas Electronics America, HD6473834HV Datasheet - Page 336

• 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: -

Software Settings
Large-panel display
Because of the large impedance of the built-in resistive voltage divider, the H8/3834 Series
LCD controller/driver is not well suited to driving large-panel displays. If use of a large panel
leads to an unclear display, refer to 13.3.5 Boosting the LCD Driver Power Supply. At static
and 1/2 duty it is possible to boost the common output driving capacity. Set bit CMX to 1
when selecting the duty cycle. In this mode, at static duty pins COM
waveform, while at 1/2 duty pins COM
COM
Segment expansion
The HD66100 can be connected externally to expand the number of segments. See 13.3.3,
Connection to HD66100.
Duty cycle selection
The duty cycle is selected in bits DTS1 and DTS0, with a choice of static, 1/2, 1/3, or 1/4 duty.
Segment driver selection
The segment drivers to be used are selected in bits SGS3 to SGS0.
Frame frequency selection
The frame frequency is selected in bits CKS3 to CKS0. The frame frequency should be
selected depending on the specification of the LCD panel to be used. Refer to 13.3.4,
Operation in Power-Down Modes, for information on clock selection in watch mode, subactive
mode, and subsleep mode.
4
and COM
Figure 13.2 LCD Driver Power Supply Processing at 1/2 Duty
3
output the COM
2
waveform.
2
and COM
V
V
CC
SS
V1
V2
V3
1
output the COM
4
1
waveform and pins
to COM
1
output the same
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