- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370471 > HD66705U (Hitachi,Ltd.) Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動器) PDF資料下載
參數(shù)資料
| 型號： | HD66705U |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動器) |
| 中文描述： | 低功耗點陣液晶顯示控制器/驅(qū)動器（圖形液晶顯示控制器/驅(qū)動器） |
| 文件頁數(shù)： | 49/81頁 |
| 文件大?。?/td> | 426K |
| 代理商： | HD66705U |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁當前第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁
HD66705U
49
When an Internal Booster and Internal Operational Amplifiers are Used
To supply LCD drive voltage using the internal booster, circuits should be connected as shown in Figure
31. Here, contrast can be adjusted through the CT bits of the contrast-control instruction. Temperature can
be compensated either through the CT bits or by controlling the reference voltage for the booster (Vci pin)
using a thermistor.
Note that Vci is both a reference voltage and power supply for the booster; the reference voltage must
therefore be adjusted using an emitter-follower or a similar element so that sufficient current can be
supplied. In this case, Vci must be equal to or smaller than the V
CC
level.
The
HD66705U
incorporates a voltage-follower operational amplifier for each of V1 to V5 to reduce current
flowing through the internal bleeder-resistors, which generate different levels of liquid-crystal drive
voltages. Thus, potential differences between V
CC
and V1 and between V
EE
and V5 must be 0.4V or greater.
Note that the OPOFF pin must be grounded when using the operational amplifiers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66710 | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 16 AMP SPDT MINIATURE POWER RELAY |
| HD66710A00TF | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712U | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66712 | Dot-Matrix Liquid Crystal Display Controller/Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66710 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00TF | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712A00TA0 | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。