HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 64

• Manufacturer Part Number: HD4074329S
• Description: MCU 4-Bit HMCS400 CISC 20KB EPROM 3.3V/5V 64-Pin SDIP
• Manufacturer: Renesas Electronics America

Specifications of HD4074329S

• Package: 64SDIP
• Family Name: HMCS400
• Maximum Speed: 4.5 MHz
• Ram Size: 268 Byte
• Program Memory Size: 20 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 4 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 35
• On-chip Adc: 4-chx8-bit
• Operating Temperature: -20 to 75 °C
• Number Of Timers: 3

HD404328 Series
LCD Data Area and Segment Data ($050–$067): As shown in figure 39, each bit of the storage area
corresponds to one of four duty cycles. If data is written to an area corresponding to a certain duty cycle, it
is automatically output to the corresponding segments as display data.
60
LCD control register (LCR): $013
LCD mode register (LMR): $014
LCD output register (LOR): $015
3
3
2
2
2
1
1
1
0
0
0
Figure 38 LCD Registers
Initial value: 000, R/W: W
Initial value: 0000, R/W: W
Initial value: 0000, R/W: W
Blank/display
Power switch on/off
Display on/off in watch mode or subactive mode
(not used)
R2/SEG1–SEG4 pin mode selection
R3/SEG5–SEG8 pin mode selection
R4/SEG9–SEG12 pin mode selection
R5/SEG13–SEG16 pin mode selection
Duty cycle selection
Input clock selection