參數(shù)資料
型號: HD66421TB0
廠商: Hitachi,Ltd.
英文描述: (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
中文描述: (內(nèi)存提供160通道4級灰度的點陣圖形液晶顯示驅(qū)動程序)
文件頁數(shù): 40/46頁
文件大小: 201K
代理商: HD66421TB0
Preliminary
Rev. 1.1E '99.02.10
HD66421
GP14 GP13 GP12 GP11 GP10
GP24 GP23 GP22 GP21 GP20
GP34 GP33 GP32 GP31 GP30
GP44 GP43 GP42 GP41 GP40
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1/31
2/31
3/31
4/31
5/31
6/31
7/31
8/31
9/31
10/31
11/31
12/31
13/31
14/31
15/31
Gray scale
Level
Table 9 Grayscale Levels
Figure 44 Contrast Control register (R16)
Data bit
Set value
7
6
5
4
3
2
1
0
CC3
CC2
CC1
CC0
CC4
40
CM0
CM1
GP14 GP13 GP12 GP11 GP10
GP24 GP23 GP22 GP21 GP20
GP34 GP33 GP32 GP31 GP30
GP44 GP43 GP42 GP41 GP40
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Gray scale
Level
16/31
17/31
18/31
19/31
20/31
21/31
22/31
23/31
24/31
25/31
26/31
27/31
28/31
29/31
30/31
1
0
0
0
0
0
0
0
0
Frame
7 lines
11 lines
13 lines
Alternative
Cycle
Table 10 LCD alternative drive cycle
CM1
CM0
Contrast Control and LCD Alternative Drive
Cycle Register (R16):
The contrast control
register (figure 44) designates the contrast level of
LCD display. These bits change the voltage which
is supplied to LCD drivers.
The LCD alternative drive cycle register
designates the number of lines that LCD drive
outputs are alternated.
Data bits 7 is unused; they should be set to 0
when written to.
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