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參數(shù)資料
| 型號(hào)： | HD66410 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | RAM-Provided 128-Channel Driver for Dot-Matrix Graphic LCD(點(diǎn)陣圖形LCD128通道驅(qū)動(dòng)器) |
| 中文描述： | 內(nèi)存提供128通道驅(qū)動(dòng)點(diǎn)陣圖形LCD（點(diǎn)陣圖形LCD128通道驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 32/50頁 |
| 文件大?。?/td> | 177K |
| 代理商： | HD66410 |
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HD66410
32
LCD Drive Voltage Power Supply Levels:
To drive the LCD, a 6-level power supply is necessary. These
levels can be usually generated by dividing the V
CC
–V5 power supply using resistive dividers. If the total
resistance is small, current consumption increases, and if the total resistance is large, display quality
degrades. Appropriate resistance should be selected for the user system.
Brightness Adjust:
The booster drives liquid crystals with a voltage after raising the voltage supplied to
the Vci pin two to four times. Accordingly, brightness can be adjusted by varying the Vci level. Attaching a
thermister is recommended to vary the voltage according to the thermal characteristics of liquid crystals.
Annunciator:
Annunciator has it’s own power circuit apart from the main power circuit. Four power
supply levels are used: these are V
CC
, AV3 and two levels generated by dividing the V
CC
–AV3 power
supply using internal resistive dividers. The level of AV3 must be inside of V
CC
–GND power supply or
connected to GND unless bright adjust is used. Brightness of annunciator can be adjusted by inseriting a
resistor into between AV3 and GND. The value of this resistor might be several hundred kilo-ohm because
the value of internal resistor is around one mega-ohm. Figure 24 shows the power circuit for annunciator.
V
CC
V
CC
AV3
several
hundred
kilo-ohm
1M
IV1
IV2
IV3
Stand-by
(OSC = 0)
HD66410T
Figure 24 Power Circuit for Annunciator
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66420 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66420TA0 | LCD Display Driver |
| 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(nèi)部LCD定時(shí)電路的240通道驅(qū)動(dòng)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66420 | 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) |
| HD66420TA0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:LCD Display Driver |
| 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 |
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