參數(shù)資料
型號(hào)： HCD66727A04BP
廠(chǎng)商： Hitachi,Ltd.
英文描述： Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述： 低功耗點(diǎn)陣液晶顯示控制器/鍵掃描功能驅(qū)動(dòng)程序
文件頁(yè)數(shù)： 59/97頁(yè)
文件大?。?/td> 513K
代理商： HCD66727A04BP
HD66727
59
Power Supply for Liquid Crystal Display Drive
When External Power Supply and Internal Operational Amplifiers are Used
To supply LCD drive voltage directly from the external power supply without using the internal booster,
circuits should be connected as shown in Figure 33. Here, contrast can be adjusted through the CT bits of
the contrast control instruction.
The HD66727 incorporates a voltage-follower operational amplifier for each of V1 to V5 to reduce current
flowing through the internal bleeder-resistors, which generate different levels of liquid-crystal drive
voltages. Thus, potential differences between V
CC
and V1 and between V
EE
and V5 must be 0.4V or greater.
Note that the OPOFF pin must be grounded when using the operational amplifiers.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HCD66730A00 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66730A01 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66731A00BP 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66731A01BP 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
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