參數(shù)資料
型號: HD66726
廠商: Hitachi,Ltd.
英文描述: Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
中文描述: 圖形液晶顯示控制器/鍵掃描功能(帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動器驅(qū)動程序)
文件頁數(shù): 66/117頁
文件大小: 1549K
代理商: HD66726
HD66726
66
V
LCD
VR
R
0
R
R
R
-
+
-
+
-
+
-
+
-
+
GND
C1+
C1-
Vci
+
0.47
μ
F
to 1
μ
F
0.47
μ
F
to 1
μ
F
VLOUT
GND
+
C2+
C2-
+
0.47
μ
F
to 1
μ
F
OPOFF = GND
R
HD66726
V1OUT
+
V2OUT
V3OUT
V4OUT
V5OUT
+
+
+
+
LCD
driver
SEG1 to SEG96
COM1 to COM40
COMS1 to COMS2
V1
V3
V4
V2
V5
GND
0.1
μ
F
to 0.5
μ
F
GND
Vci
C3+
C3-
+
0.47
μ
F
to 1
μ
F
Notes: 1. The reference voltage input (Vci) must be adjusted so that the output voltage after boosting will not exceed
the absolute maximum rating for the liquid-crystal power supply voltage (13 V). Particularly, Vci must be
3.3 V or less for quadruple boosting.
2. Vci is both a reference voltage and power supply for the booster; connect it to Vcc directly or combine it
with a transistor so that sufficient current can be obtained.
3. Vci must be smaller than Vcc.
4. Polarized capacitors must be connected correctly.
5. Circuits for temperature compensation should be based on the sample circuit in figure 38.
Booster
Figure 37 Internal Booster for LCD Drive Voltage Generation
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