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參數(shù)資料
| 型號： | HD66750TB0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 122 x 32 pixel format, Compact LCD size |
| 中文描述： | 128 × 128點圖形LCD控制器/驅(qū)動器，四灰度函數(shù) |
| 文件頁數(shù)： | 52/96頁 |
| 文件大?。?/td> | 2068K |
| 代理商： | HD66750TB0 |
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HD66750/1
52
Liquid Crystal Display Voltage Generator
When External Power Supply and Internal Operational Amplifiers are Used
To supply LCD drive voltage directly from the external power supply without using the internal booster,
circuits should be connected as shown in figure 35. Here, contrast can be adjusted by software through the
CT bits of the contrast adjustment register.
The HD66750/1 incorporates a voltage-follower operational amplifier for each V1 to V5 to reduce current
flowing through the internal bleeder-resistors, which generate different levels of liquid-crystal drive
voltages. Thus, potential difference between V
LCD
and V1 must be 0.1 V or higher, and that between V4 and
GND must be 1.4 V or higher. Note that the OPOFF pin must be grounded when using the operational
amplifiers. Place a capacitor of about 0.47
μ
F (B characteristics) between each internal operational
amplifier (V1OUT to V5OUT outputs) and GND and stabilize the output level of the operational amplifier.
Adjust the capacitance value of the stabilized capacitor after the LCD panel has been mounted and the
screen quality has been confirmed.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66750 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66751TB0 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66760 | 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors |
| HD66766R | 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
| HD667A66R | 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66751 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66751S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HD66751TB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66753 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Datasheet|ADE-207-347|JAN.31.03|829K |
| HD66753TB0L | 制造商:Renesas Electronics Corporation 功能描述:IC PROC - Tape and Reel |
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