- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370444 > HCD66727A04BP (Hitachi,Ltd.) Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function PDF資料下載
參數(shù)資料
| 型號： | HCD66727A04BP |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| 中文描述： | 低功耗點陣液晶顯示控制器/鍵掃描功能驅(qū)動程序 |
| 文件頁數(shù)： | 66/97頁 |
| 文件大小： | 513K |
| 代理商： | HCD66727A04BP |
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頁當前第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頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁
HD66727
66
Contrast Adjuster
Multiplexing Drive System
Contrast for an LCD controlled by the multiplexing drive method can be adjusted by varying the liquid-
crystal drive voltage (potential difference between V
CC
and V5) through the CT bits of the contrast control
instruction (electron volume function). See Figure 38 and Table 30. The value of a variable resistor (VR)
can be adjusted within the range from 0.4 x R through 6.4 x R, where R is a reference resistance obtained
by dividing the total resistance between V
CC
and V5.
The HD66727 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.
1/6 bias (V2 and V3 pins left open):
LCD drive voltage VLCD: 6R
×
(V
CC
– V
EE
)/(6R + VR) (VR = a value within the range from 0.4R to
6.4R)
VLCD adjustable range: 0.484
×
(V
CC
– V
EE
)
≤
VLCD
≤
0.938
×
(V
CC
– V
EE
)
Potential difference between V
CC
and V1: R
×
(V
CC
– V
EE
)/(6R + VR)
≥
0.4 (V)
Potential difference between V5 and V
EE
: VR
×
(V
CC
– V
)/(6R + VR)
≥
0.4 (V)
1/4 bias (V2 and V3 pins short-circuited):
LCD drive voltage VLCD: 4R
×
(V
CC
– V
EE
)/(4R + VR) (VR = a value within the range from 0.4R to
6.4R)
VLCD adjustable range: 0.385
×
(V
CC
– V
EE
)
≤
VLCD
≤
0.909
×
(V
CC
– V
EE
)
Potential difference between V
CC
and V1: R
×
(V
CC
– V
EE
)/(4R + VR)
≥
0.4 (V)
Potential difference between V5 and V
EE
: VR
×
(V
CC
– V
EE
)/(4R + VR)
≥
0.4 (V)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCD66730A00 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A00BP | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A01BP | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66751BP | 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 |
|---|---|
| HCD66730A00 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A00BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A01BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66740BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver |
發(fā)布緊急采購，3分鐘左右您將得到回復。