hd66712u Renesas Electronics Corporation., hd66712u Datasheet - Page 20

• Manufacturer Part Number: hd66712u
• Description: Dot-matrix Liquid Crystal Display Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

4-line display (NW = 1)
Case 1: The first line is displayed from COM1 to COM8, the second line is displayed from COM9
to COM16, the third line is displayed from COM17 to COM24, and the fourth line is displayed
from COM25 to COM32.
Note that the DDRAM addresses of each line are not consecutive. Figure 8 shows an example
where a 12
When a display shift is performed, the DDRAM addresses shift as shown.
(Left shift display)
4-line display is performed using one HD66712.
COM17 to 24
COM25 to 32
COM9 to 16
COM1 to 8
01 02 03 04 05 06
21 22 23 24 25 26
41 42 43 44 45 46
61 62 63 64 65 66
1 2 3 4 5 6 7
COM17 to 24
COM25 to 32
COM9 to 16
COM1 to 8
Figure 8 4-Line Display
07
27
47
67
00 01 02 03 04 05 06
20 21 22 23 24 25 26
40 41 42 43 44 45 46
60 61 62 63 64 65 66
1 2 3 4 5 6 7
08
28
48
68
8
09
29
49
69
9
10
0A
2A
4A
6A
11
0B
2B
4B
6B
12
0C
2C
4C
6C
(Right shift display)
07
27
47
67
8
08
28
48
68
9
10
09
29
49
69
11
0A
2A
4A
6A
13
33
53
73
1 2 3 4 5 6 7
12
0B
2B
4B
6B
00 01 02 03 04 05 06
20 21 22 23 24 25 26
40 41 42 43 44 45 46
60 61 62 63 64 65 66
Display position
DDRAM address
8
07
27
47
67
9
10
08
28
48
68
11
09
29
49
69
12
0A
2A
4A
6A
HD66712U
383