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ST7066 Datasheet(PDF) 25 Page - List of Unclassifed Manufacturers

Part # ST7066
Description  Dot Matrix LCD Controller/Driver
PDF  29 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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ST7066 Datasheet(HTML) 25 Page - List of Unclassifed Manufacturers

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ST7066
V1.2
2000/6/13
25
The relations between Oscillation Frequency and LCD Frame Frequency
Assume the oscillation frequency is 270KHZ, 1 clock cycle time = 3.7us
1. 1/8 Duty
2. 1/11 Duty
3. 1/16 Duty
400 clocks
1
2
3
4
------
1
8
2
V5
V4
V2(V3)
V1
Vcc
COM1
1 frame = 3.7(us) x 400 x 8 = 11850(us)
= 11.9(ms)
1 frame
400 clocks
1
2
3
4
------
1
11
2
V5
V4
V2(V3)
V1
Vcc
COM1
1 frame = 3.7(us) x 400 x 11 = 16300(us)
= 16.3(ms)
1 frame
200 clocks
1
2
3
4
------
1
16
2
V5
V4
V2
V1
Vcc
COM1
1 frame = 3.7(us) x 200 x 16 = 11850(us)
= 11.9(ms)
1 frame
V3



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