参数资料
型号: LC7471
元件分类: 画面叠加
英文描述: ON-SCREEN DISPLAY IC, PDIP22
封装: SHRINK, DIP-22
文件页数: 8/12页
文件大小: 134K
代理商: LC7471
LC7471
No.4088–5/12
RAM Memory Configuration
RAM memory is organized as 16-bit words as shown in
the following table. Locations 000H to 0AFH are display
RAM, locations 0B0H through to 0BBH are display line
Note
× = don’t care
address registers, locations 0BCH to 0BDH are display con-
trol registers, location 0BEH is the video signal control reg-
ister and location 0BFH is the general control register.
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H
0
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0
00000000
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C5
C4
C3
C2
1
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0
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A
R
D
A9
R
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A8
R
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A7
R
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A6
R
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A5
R
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A4
R
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A3
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A2
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A9
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A8
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A7
R
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A6
R
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A5
R
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A4
R
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A3
R
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2
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A
R
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A9
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A7
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A6
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A5
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A9
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A7
R
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A6
R
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A5
R
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A4
R
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A3
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A1
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A6
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A6
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A5
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Horizontal Display Control Register (0BCH)
The function of each bit in the horizontal display control register is shown in the following table. Note that a LOW-
level pulse on RST resets all bits to 0.
Table 1. Line 1 pixel width
Table 2. Line 2 pixel width
Table 3. Line 3 to line 12 pixel width
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11
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P
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P
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44
P
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P
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1
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