- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370471 > HD66740TB0 (Hitachi,Ltd.) 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN PDF資料下載
參數(shù)資料
| 型號(hào)： | HD66740TB0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN |
| 中文描述： | 112 × 80點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 52/95頁(yè) |
| 文件大小： | 856K |
| 代理商： | HD66740TB0 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)當(dāng)前第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)
HD66740
52
Contrast Adjuster
Software can adjust 64-step contrast for an LCD by varying the liquid-crystal drive voltage (potential
difference between V
LCD
and V1) through the CT bits of the contrast adjustment register (electron volume
function). The value of a variable resistor between V
LCD
and V1 (VR) can be precisely adjusted in a 0.05
x R unit within a range from 0.05 x R through 3.20 x R, where R is a reference resistance obtained by
dividing the total resistance.
The HD66740 incorporates a voltage-follower operational amplifier for each of V1 to V5 to reduce
current flowing through the internal bleeder resistors, which generate different liquid-crystal drive
voltages. Thus, CT5-0 bits must be adjusted so that the potential differences between V
LCD
and V1 and
between V5 and GND are 0.4 V or higher when liquid-crystal drives, particularly when the VR is
small.
VR
R
R
R0
R
R
GND
VLCD
-
-
-
-
-
HD66740
CT
V1
V2
V3
V4
V5
GND
Figure 27 Contrast Adjuster
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66740WTB0 | 112 x 80-dot Graphics LCD Controller/Driver |
| HD66751 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66750TB0 | 122 x 32 pixel format, Compact LCD size |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66740WTB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver |
| HD66741 | 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 |
| HD66750 | 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 |
| HD66750TB0 | 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 |
| 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。