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參數資料
| 型號： | HD66420TA0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅動程序 |
| 文件頁數： | 14/52頁 |
| 文件大?。?/td> | 167K |
| 代理商： | HD66420TA0 |
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HD66420
14
Multi-LSI Operation
Using multiple HD66420s provides the means for extending the number of display dots. Note the following
items when using the multi-LSI operation.
(1) The master LSI and the slave LSI must be determined; the M/S pin of the master LSI must be set high
and the M/S pin of the slave LSI must be set low.
(2) The master LSI supplies the FLM, M, CL1 and clock signals to the slave LSI via the corresponding
pins, which synchronizes the slave LSI with the master LSI.
(3) All control bits of slave LSI must be set with the same data with that of the master LSI.
(4) All LSIs must be set to LCD off in order to turn off the display.
(5) The standby function of slave LSI must be started up first, and that of the master LSI must be
terminated first.
(6) The power supply circuit of slave LSI stop working, so V1 to V5 levels are supplied from the master
LSI. If the internal power supply circuit can not drive two LSIs, use an external power supply circuit.
Figure 6 shows the configuration using two HD66420s and table 2 lists the differences between master and
slave modes.
Dot-matrix Display
40-channel
row output
160-channel
column output
40-channel
row output
320 x 80
HD66420
(Master)
160-channel
column output
HD66420
(slave)
CL1
FLM
M
CL1
FLM
M
OSC
CO
OSC OSC1
CO OSC1
Open
V1O to
V5O
V1O to
V5O
Figure 6 Configuration Using Two HD66420s
相關PDF資料 |
PDF描述 |
|---|---|
| HD66421 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66503 | 240-Channel Common Driver with Internal LCD Timing Circuit(帶內部LCD定時電路的240通道驅動器) |
| HD66520T | 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點陣圖形LCD160通道驅動器) |
| HD66522 | 160-Channel Column Driver with Internal Bit-Map RAM for Reflective Color Display and Grayscale Display(點陣圖形LCD160通道驅動器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HD66421 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | 制造商:Renesas Electronics Corporation 功能描述: |
| 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 |
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