HD66523 Datasheet, PDF (13/19 Pages) Hitachi Semiconductor – (240-Channel Common Driver with Internal LCD Timing Circuit)

HD66523
LCD Drive Output
HD66523 outputs one of three levels, VRH, VM and VRL. VM is unselected level, VRH is high select
level and VRL is low select level. Either VRH or VRL level is selected depending on the number of
flames and lines. Output timings are showed in Figure 10 to 12.
FLM
CL1
FX1,FX0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
1
2
3
4
5
6
7
8
9 10 11 12 13 14
VRH
VM
VRL
Figure 10 LCD Drive Output Timing at 3n + 1’s frame (n = 1, 2, 3, )
FLM
CL1
FX1,FX0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
1
2
3
4
5
6
7
8
9 10 11 12 13 14
VRH
VM
VRL
Figure 11 LCD Drive Output Timing at 3n + 2’s frame (n = 1, 2, 3, )
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