參數資料
型號: HD66702R
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/鍵掃描功能驅動程序
文件頁數: 67/97頁
文件大?。?/td> 513K
代理商: HD66702R
HD66727
67
V
CC
V
CC
V2
V3
R
V1
CT
V2
V3
V4
V5
R
R
R
R
VR
+
+
+
+
R
+
V
EE
HD66727
Figure 38 Contrast Adjuster
Table 30
Contrast-Adjust Bits (CT) and Variable Resistor Values
CT3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CT2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CT1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CT0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Variable Resistor Value (VR)
6.4 R
6.0 R
5.6 R
5.2 R
4.8 R
4.4 R
4.0 R
3.6 R
3.2 R
2.8 R
2.4 R
2.0 R
1.6 R
1.2 R
0.8 R
0.4 R
Static Drive System
Contrast for a statically-driven LCD, that is, annunciator display, can be adjusted through the AGND pin.
The annunciators are driven statically by the potential difference between V
CC
and AGND. The AGND pin
level must be equal to or greater than the GND level.
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