參數(shù)資料
型號(hào)： HD667A66R
廠商： Hitachi,Ltd.
英文描述： 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
中文描述： 132 × 176點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的65K色
文件頁數(shù)： 63/97頁
文件大小： 681K
代理商： HD667A66R
HD66766R Rev. 1.0-1 / September 2002
63
Setting flow for low power consumption instruction
Sleep Mode
Setting the sleep mode bit (SLP) to “1” puts the HD66766R in the sleep mode, where the device stops all
internal display operations, thus reducing current consumption. Specifically, LCD operation is
completely halted. Here, all the SEG (SEG1 to SEG396) and COM (COM1 to COM176) pins output
the “GND” level, resulting in no display. If the AP1-0 bits in the power control register are set to “00”
in the sleep mode, the LCD drive power supply can be turned off, reducing the total current consumption
of the LCD module.
Table 38 Comparison of Sleep Mode and Standby Mode
Function
Sleep Mode (SLP = “1”)
Standby Mode (STB = “1”)
LCD control
Turned off
Turned off
R-C oscillation circuit
Operates normally
Operation stopped
Master/slave signal
Operation stopped
Operation stopped
Standby Mode
Setting the standby mode bit (STB) to “1” puts the HD66766R in the standby mode, where the device
stops completely, halting all internal operations including the R-C oscillation circuit, thus further reducing
current consumption compared to that in the sleep mode. Specifically, all the SEG (SEG1 to SEG396) and
COM (COM1 to COM176) pins for the time-sharing drive output the GND level, resulting in no display.
If the AP1-0 bits are set to “00” in the standby mode, the LCD drive power supply can bet turned off.
During the standby mode, no instructions can be accepted other than the start-oscillation instruction. To
cancel the standby mode, issue the start-oscillation instruction to stabilize R-C oscillation before setting
the STB bit to “0”. When multi-chips are operated, be sure to be set to the standby mode from the slave
level.
Figure 45 Procedure for Setting and Canceling Standby Mode
Set stand-by mode: STB = "1"
Wait at least 10 ms
Cancel stand-by mode: STB = "0"
Turn on the LCD power supply: AP0-1 = 01/10/11
Turn off the display: D1-0 = "01"
Turn on the display: D1-0 = "11"
See the power supply
circuit setting.
Turn off the LCD power supply: AP1-0 = "00"
Issue the start-oscillation instruction
Wait at least 150 ms
Procedure for Setting and Canceling Standby Mode
Stand-by mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD667B66R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
HD66840 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
HD66840F25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller
HD66840F30 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller
HD66841FP 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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