HD66730 Datasheet, PDF (110/131 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display

HD66730/HD66731
Relationship between the Oscillation Frequency and the Liquid Crystal Display Frame Frequency
Figures 42 to 45 and Tables 24 to 27 show the oscillation frequency and the external clock frequency for
various registor settings when the frame frequency is 80 Hz.
1-line selection period
V_CC
V1
COM1
V4
V5
1 234
13 14 1 2 3
13 14
1 frame
(Number of dots per screen)
1 frame
(Number of dots per screen)
Figure 42 Frame Frequency (1/14 Duty Cycle)
109