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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)： | 27/50頁 |
| 文件大?。?/td> | 177K |
| 代理商： | HD66410 |
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HD66410
27
Power Down Modes
The HD66410 has a standby function providing low power-dissipation, which is initiated by internal
register settings. There are two standby modes: in one, all the HD66410 functions are inactive, and in the
other, only the annunciator display function is active. In both modes, the internal booster halts but data in
the display RAM and internal registers except the DISP bit is retained. However, only control registers can
be accessed during standby modes. In the standby mode with annunciator display, the oscillator does not
halt, thus dissipating more power than in the other standby mode. Table 1 lists the LCD driver output pin
status during standby modes. Figure 19 shows the procedure for initiating and canceling a standby mode.
Note that the cancelation procedure must be strictly followed to protect data in the display RAM.
Table 1
Output Pin Status during Standby Modes
X1 to X161
Output V
CC
(display off)
OSC = 0
COM1 to COM3
Output V
CC
(display off)
Output common signals (display on)
OSC = 1
SEG1 to SEG24
OSC = 0
Output V
CC
(display off)
Output segment signals (display on)
OSC = 1
Clear STBY bit to 0 (control register 1)
Wait for power supply to stabilize
Set DISP bit to 1 (control register 1)
Display starts
Initiation
Cancelation
Set STBY bit to 1 (control register 1)
Clear OSC bit to 0 (control register 1)
Set OSC bit to 1 (control register 1)
Wait for oscillation to stabilize
Set OSC bit to 1 (control register 1)
Display annunciator
Internal operation
and booster start
Oscillation
starts
Oscillation
halts
Internal operation
and booster halt
Standby mode
(with annunciator display)
Standby mode
(without annunciator display)
NO
YES
Figure 19 Procedure for Initiating and Canceling a Standby Mode
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| HD66420 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
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| HD66421 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
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| 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: |
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