hd66731a01tb0l Renesas Electronics Corporation., hd66731a01tb0l Datasheet - Page 113

• Manufacturer Part Number: hd66731a01tb0l
• Description: Dot-matrix Liquid Crystal Display Controller/driver Supporting Japanese Kanji, Korean Font Display - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HD66730/HD66731
1/40 Duty Cycle (DT1/0 = 10: 3-Line Drive)
Table 26
Number of Display Lines:
Number of display characters
(NC1/0 set value)
1-line selection period (dot)
Number of dots per screen (dot)
Oscillation frequency (kHz)*
Note:
112
(NL1/0 set value):
COM1
*
The frequencies in Table 25 are examples when the frame frequency is set to 70 Hz. Adjust the
oscillation frequency so that an optimum frame frequency can be obtained.
V
V1
V4
V5
1/40 Duty Drive
CC
1-line selection period
1
2
Figure 44 Frame Frequency (1/40 Duty Cycle)
(Number of dots per screen)
3
6 characters
(00)
72 dots
2880 dots
200
1 frame
4
39
40
10 characters
(01)
120 dots
4800 dots
335
1
4-Line Display
(Number of dots per screen)
2
(11)
3
1 frame
39
40