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參數資料
| 型號： | HD66727 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 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/驅動器) |
| 中文描述： | 低功耗點陣液晶顯示控制器/鍵掃描功能（帶鍵掃描功能的圖形液晶顯示控制器/驅動器驅動程序） |
| 文件頁數： | 35/98頁 |
| 文件大?。?/td> | 1576K |
| 代理商： | HD66727 |
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HD66727
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consumption. For details, refer to the Sleep Mode section. Only the following instructions can be executed
during the sleep mode.
1. Annunciator address (AAN) set
2. Annunciator data write
3. LED drive/general output port data write
4. Annunciator display on or off (DA = 1 or 0)
5. Voltage follower on or off (AMP = 1 or 0)
6. Standby mode set (STB = 1)
7. Sleep mode cancel (SLP = 0)
8. Key scan data (SD) read
9. Key scan interrupt generation enable/disable (IRE = 1 or 0)
10.Key scan cycle (KF) set
During the sleep mode, the other RAM data and instructions cannot be updated but they are retained.
STB:
When STB = 1, the HD66727 enters the standby mode, where the device completely stops, halting all
the internal operations including the internal R-C oscillator and no external clock pulses are supplied.
However, annunciator display alone is available when the alternating signal for annunciator-driving signals
is supplied to the EXM pin. When the annunciator display is not needed, make sure to turn off display (DA
= 0). Normal key scanning is also halted in the standby mode. However, the HD66727 can detect four key
inputs connected with strobe signal KST0, thus generating the key scan interrupt (IRQ*). For details, refer
to the Standby Mode section and the Key Scan Interrupt section. Only the following instructions can be
executed during the standby mode.
1. Annunciator address (AAN) set
2. Annunciator data write
3. LED drive/general output port data write
4. Annunciator display on or off (DA = 1 or 0)
5. Voltage follower on or off (AMP = 1 or 0)
6. Start oscillator
7. Standby mode cancel (STB = 0)
8. Key scan interrupt generation enable/disable (IRE = 1 or 0)
相關PDF資料 |
PDF描述 |
|---|---|
| HD66728 | 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器) |
| HD66730 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅動器) |
| HD66731 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅動器) |
| HD66731A00TB0L | 122 x 32 pixel format, Compact LCD size |
| HD66731A00TA0L | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HD66727A03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03BP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0L | 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 |
| HD66727A04 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
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