- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370470 > HD66120T (Hitachi,Ltd.) 240-Channel Segment Driver for Dot-Matrix Graphic Liquid Crystal Display(用于點(diǎn)陣圖形LCD的240通道段碼驅(qū)動(dòng)器) PDF資料下載
參數(shù)資料
| 型號(hào)： | HD66120T |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 240-Channel Segment Driver for Dot-Matrix Graphic Liquid Crystal Display(用于點(diǎn)陣圖形LCD的240通道段碼驅(qū)動(dòng)器) |
| 中文描述： | 240通道段驅(qū)動(dòng)的點(diǎn)陣圖形液晶顯示屏（用于點(diǎn)陣圖形液晶顯示的240通道段碼驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 18/21頁 |
| 文件大?。?/td> | 77K |
| 代理商： | HD66120T |
HD66120T
18
LCD Driver LSI Power Supply Pin Connection
A feature of the LCD driver is the LCD drive power supply. As the number of pixel drives per LSI
increases, so does the voltage and number of outputs.
Consequently, if multi-output CMOS circuits are switched simultaneously, a wiring voltage drop may
occurs due to transient currents, and the potential between the LCD drive circuit power supply (V
CD
) and
LCD drive level power supplies (V1, V6, and V3) or GND and the LCD level power supplies (V2, V5, and
V4) may be inverted, resulting in latchup breakdown. To prevent this, it is recommended that, when
designing the LCD drive power supply and board power supply wiring, the power supply wiring be
designed as low-impedance and capacitors be inserted in the wiring between V
CD
and V1, V3, V6, and
between V2, V4, V5 and GND. In set evaluation, it is recommended that a check be carried out to confirm
that there is no inversion of the LCD drive power supply and level power supplies in the period between
when the LCD drive power supply is turned on and turned off.
Example of capacitor insertion (when V
LCD
= V1 and GND = V2)
+
–
+
–
+
–
+
–
+
–
+
–
V
LCD
, V1 pins
(COM, SEG)
GND, V2 pins
(COM, SEG)
V6 pin (COM)
V5 pin (COM)
V3 pin (SEG)
Electrolytic capacitor
Ceramic capacitor
V4 pin (SEG)
Figure 9 Example of Capacitor Insertion
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66130T | 320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display(點(diǎn)陣STN LCD低壓段碼驅(qū)動(dòng)器) |
| HD66130 | 320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display |
| HD66131ST | High-Voltage Durable 240-Channel Common Driver for Dot-Matrix STN LCD(點(diǎn)陣STN LCD的高電壓耐用240通道驅(qū)動(dòng)器) |
| HD66132T | 240-Channel HI-FAS Segment Driver for Dot-Matrix Graphic LCD Display(用于點(diǎn)陣圖形LCD的240通道段碼驅(qū)動(dòng)器) |
| HD66133T | 120-Channel HI-FAS Common Driver for Dot-Matrix Graphic LCD Display(點(diǎn)陣圖形顯示LCD120通道驅(qū)動(dòng)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66120TA5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66130 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display |
| HD66130T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display |
| HD66131ST | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66132T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。