參數(shù)資料
型號： HD66717A03TA0
廠商： Hitachi,Ltd.
元件分類： 晶體
英文描述： (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
中文描述： （低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動器）
文件頁數(shù)： 76/90頁
文件大?。?/td> 716K
代理商： HD66717A03TA0
HD66717
528
Standby Mode
Setting the standby mode bit (STB) to 1 puts the HD66717 in standby mode, where the device stops
completely, halting all internal operations including the R-C oscillator, thus further reducing current
consumption compared to that in sleep mode. Specifically, character and segment displays, which are
controlled by the multiplexing drive method, are completely halted. Here, all the SEG (SEG1 to SEG60)
and COM (COM4 to COM34) pins output the V
CC
level, resulting in no display. If the AMP bit is set to 0
in standby mode, the LCD drive power supply can be turned off.
Annunciators can be displayed simply by supplying an approximately 40-Hz alternating signal for the
LCD drive signals to the EXM pin externally. If annunciator display is unnecessary during standby mode,
the EXM pin must be fixed to the V
CC
or GND level and the annunciator display-on bit (DA) set to 0.
During standby mode, no instructions can be accepted other than those for annunciator display and the
start-oscillator instruction. To cancel standby mode, issue the start-oscillator instruction to stabilize R-C
oscillation before setting the STB bit to 0.
Figure 45 shows the procedure for setting and cancelling standby mode.
Turn off the LCD power supply: AMP = 0
Only for annunciator display;
set the DA bit to 0 when
annunciator display is not necessary.
Set standby mode: STB = 1
Supply an external alternating signal to the EXM pin
Issue the start-oscillator instruction
Wait at least 10 ms
Cancel standby mode: STB = 0
Turn on the LCD drive power supply: AMP = 1
Standby mode (only annunciator display is available)
Figure 45 Procedure for Setting and Cancelling Standby Mode
相關(guān)PDF資料
PDF描述
HD66724 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66725 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66726 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66727 Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66728 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點(diǎn)圖形LCD控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66720 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66720A01TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66724 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
HD66724/HD66725 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66724RA03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
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