參數(shù)資料
型號： HCD44780UA00
廠商： Hitachi,Ltd.
英文描述： 320 x 240 pixel format, CFL backlight available with power harness
中文描述： 點陣式液晶顯示控制器/驅(qū)動器
文件頁數(shù)： 34/59頁
文件大?。?/td> 316K
代理商： HCD44780UA00
HD44780U
34
Interface to Liquid Crystal Display
Character Font and Number of Lines:
The HD44780U can perform two types of displays, 5
×
8 dot and
5
×
10 dot character fonts, each with a cursor.
Up to two lines are displayed for 5
×
8 dots and one line for 5
×
10 dots. Therefore, a total of three
types of common signals are available (Table 9).
The number of lines and font types can be selected by the program. (See Table 6, Instructions.)
Connection to HD44780 and Liquid Crystal Display:
See Figure 19 for the connection examples.
Table 9
Common Signals
Number of Lines
Character Font
Number of Common Signals
Duty Factor
1
5
×
8 dots + cursor
5
×
10 dots + cursor
5
×
8 dots + cursor
8
1/8
1
11
1/11
2
16
1/16
COM1
COM8
SEG1
SEG40
COM1
COM11
SEG1
SEG40
HD44780
Example of a 5
×
8 dot, 8-character
×
1-line display (1/4 bias, 1/8 duty cycle)
Example of a 5
×
10 dot, 8-character
×
1-line display (1/4 bias, 1/11 duty cycle)
HD44780
Figure 19 Liquid Crystal Display and HD44780 Connections
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