參數(shù)資料
型號: HD44780UA02TF
廠商: Hitachi,Ltd.
英文描述: 320 x 240 pixel format, CFL backlight available with power harness
中文描述: 點(diǎn)陣式液晶顯示控制器/驅(qū)動器
文件頁數(shù): 38/59頁
文件大?。?/td> 316K
代理商: HD44780UA02TF
HD44780U
38
Relationship between Oscillation Frequency and Liquid Crystal Display Frame
Frequency
The liquid crystal display frame frequencies of Figure 22 apply only when the oscillation frequency is 270
kHz (one clock pulse of 3.7
μ
s).
1
2
3
4
8
1
2
1
2
3
4
11
1
2
1
2
3
4
16
1
2
400 clocks
400 clocks
200 clocks
1 frame
1 frame
1 frame
1/8 duty cycle
1/11 duty cycle
1/16 duty cycle
V
CC
V1
V2 (V3)
V4
V5
V
CC
V1
V2 (V3)
V4
V5
V
CC
V1
V2
V3
V4
V5
COM1
COM1
COM1
1 frame = 3.7
μ
s
×
400
×
8 = 11850
μ
s = 11.9 ms
Frame frequency = 1
11.9 ms
1 frame = 3.7
μ
s
×
400
×
11 = 16300
μ
s = 16.3 ms
Frame frequency = 1
16.3 ms
1 frame = 3.7
μ
s
×
200
×
16 = 11850
μ
s = 11.9 ms
Frame frequency = 11.1
Figure 22 Frame Frequency
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