HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 36

• Manufacturer Part Number: HD44780
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HD44780U
Connection of Changed Matrix Layout: In the preceding examples, the number of lines correspond to the
scanning lines. However, the following display examples (Figure 20) are made possible by altering the
matrix layout of the liquid crystal display panel. In either case, the only change is the layout. The display
characteristics and the number of liquid crystal display characters depend on the number of common
signals or on duty factor. Note that the display data RAM (DDRAM) addresses for 4 characters
and for 16 characters
36
HD44780
COM16
SEG40
COM1
COM8
COM9
SEG1
1 line are the same as in Figure 19.
Figure 20 Changed Matrix Layout Displays
5
(1/5 bias, 1/16 duty cycle)
8 dot, 16-character
1-line display
2 lines