參數(shù)資料
型號: HD66726
廠商: Hitachi,Ltd.
英文描述: 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)
中文描述: 圖形液晶顯示控制器/鍵掃描功能(帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動器驅(qū)動程序)
文件頁數(shù): 99/117頁
文件大?。?/td> 1549K
代理商: HD66726
HD66726
99
Sleep Mode
Setting the sleep mode bit (SLP) to 1 puts the HD66726 in the sleep mode, where the device stops all
internal display operations except for key scan operations, thus reducing current consumption. Specifically,
LCD drive is completely halted. Here, all the SEG (SEG1 to SEG96 and COM (COM1 to COM40,
COMS1/2) pins output the GND level, resulting in no display. If the AMP bit is set to 0 in the sleep mode,
the LCD drive power supply can be turned off, reducing the total current consumption of the LCD module.
The key scan circuit operates normally in the sleep mode, thus allowing normal key scan and key scan
interrupt generation. For details, see the Key Scan Control section and Key Scan Interrupt (Wake-up
Function) section.
Table 47 Comparison of Sleep Mode and Standby Mode
Function
Sleep Mode (SLP = 1)
Standby Mode (STB = 1)
Character display
Turned off
Turned off
Segment display
Turned off
Turned off
R-C oscillation circuit
Operates normally
Halted
Key scan circuit
Can operate normally
Halted but IRQ* can be generated
相關(guān)PDF資料
PDF描述
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)
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