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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)： | 18/46頁 |
| 文件大?。?/td> | 201K |
| 代理商： | HD66421TB0 |
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Preliminary
Rev. 1.1E '99.02.10
HD66421
Word Length
The HD66421 can handle either 8- or 6-bits as a
word. In the display memory, one X address is
assigned to each word of 8- or 6-bits long in X
direction.
H'00
H'01
Y
H'0
H'1
H'27
X addresses
SEG1
SEG160
LCD drive signal output
(a) Address assignment when one
word is 8 bits long (MON=0)
H'62
H'63
H'00
H'01
Y
H'35
H'1
H'0
SEG1
SEG160
H'62
H'63
MSB
MSB
LCD drive signal output
X addresses
H'34
(b) Address assignment when one
word is 6 bits long (MON=0)
8 bits
6 bits
Figure 11 Display RAM Addresses in Gray Scale Mode
(a) WLS= 1, ADC = 0, MON= 0
H'35's bit7,6, and 3 to 0 are disable .
(b) WLS= 1, ADC = 1 MON= 0
H'0's bit7 to 2 are disable.
1 1 1 0 0 1
0 0 0 1 1 0
D
B
5
4
3
Y0
Y1
Display RAM
1 0 0
0 1 1
D
B
5
0
D
B
4
D
B
D
B
D
B
D
B
2
D
B
1
D
B
0
H'35
H'0
1 1 1 0 0 1
0 0 0 1 1 0
D
B
1
0
3
Y0
Y1
Display RAM
1 0 0
0 1 1
D
B
1
4
D
B
0
D
B
D
B
D
B
D
B
2
D
B
5
D
B
4
H'0
H'35
18
When the 6-bits mode is selected, only data on
DB5 to DB0 are used and data on DB7 and
DB6 are discarded. This word length is only
applied to data to internal RAM. The word
length of internal register is always 8-bits
Figure 12 Display RAM Bits Map at 6-bits Mode
(c) WLS= 1, ADC = 0, MON= 1
H'34's bit7,6, and 1,0 are disable .
(d) WLS= 1, ADC = 1, MON= 1
H'0's bit7 to 4 are disable.
1 1 1 0 0 1
0 0 0 1 1 0
D
B
5
4
3
Y0
Y1
Display RAM
1 0 0
0 1 1
D
B
4
3
D
B
5
D
B
0
D
B
D
B
D
B
2
D
B
1
D
B
0
H'34
H'0
1 1 1 0 0 1
0 0 0 1 1 0
D
B
0
1
2
Y0
Y1
Display RAM
1 0 0
0 1 1
D
B
1
2
D
B
0
D
B
5
D
B
D
B
D
B
3
D
B
4
D
B
5
H'0
H'34
0 0
1 1
0 0
1 1
D
B
D
B
2
D
B
D
B
3
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相關(guān)代理商/技術(shù)參數(shù) |
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| HD66503 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520TB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM |
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