參數(shù)資料
型號： HCD66712UA03
廠商： Hitachi,Ltd.
英文描述： Dot-Matrix Liquid Crystal Display Controller/Driver
中文描述： 點陣液晶顯示控制器/驅(qū)動器
文件頁數(shù)： 56/88頁
文件大小： 662K
代理商： HCD66712UA03
HD66712U
419
Extension Driver LSI Interface
By bringing the EXT pin high, extended driver interface signals (CL1, CL2, D, and M) are output.
Table 14
Relationships between the Number of Display Lines and 40-Output Extension Driver
Controller
HD66712
HD66710
HD44780
HD66702
Display Lines
16
×
2 lines
20
×
2 lines
24
×
2 lines
40
×
2 lines
12
×
4 lines
16
×
4 lines
20
×
4 lines
Note: The number of display lines can be extended to 32
×
2 lines or 20
×
4 lines in the LCD-II/F12.
The number of display lines can be extended to 30
×
2 lines or 20
×
4 lines in the LCD-II/F8.
5-Dot Width 6-Dot Width
5-Dot Width 6-Dot Width
5-Dot Width
5-Dot Width
Not required Not required
Not required 1
1
Not required
Not required Not required
1
1
2
Not required
Not required 1
1
2
2
1
Disabled
Disabled
Disabled
Disabled
4
3
Not required 1
1
1
Disabled
Disabled
1
1
1
2
Disabled
Disabled
1
2
2
3
Disabled
Disabled
COM0–
COM33
SEG1–SEG60
EXT
SEG1–
SEG60
GND
HD66712
COM0–
COM33
EXT
C
V
CC
CL2
Extension driver
M
D
HD66712
SEG1–
SEG60
Seg1–
Seg40
C
D
M
a) 1-chip operation
(EXT = Low, 5-dot font width)
b) When using the extension driver
(EXT = High, 5-dot font width)
24
×
2-line display
32
×
2-line display
Figure 24 HD66712 and the Extension Driver Connection
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