參數(shù)資料
型號: HD66727
廠商: Hitachi,Ltd.
英文描述: Low-Power Dot-Matrix Liquid Crystal Display 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: 低功耗點陣液晶顯示控制器/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): 65/98頁
文件大小: 1576K
代理商: HD66727
HD66727
65
C1
C2
Vci
V5OUT2
V5OUT3
+
GND
+
V
CC
V2
V3
V
CC
R
R
R
R
VR
+
+
+
+
+
V
EE
Booster
+
0.47
μ
F
to 1
μ
F
0.47
μ
F
to 1
μ
F
0.47
μ
F
to 1
μ
F
OPOFF = GND
Large size of LCD panel
R
R
GND
HD66727
V
CC
V1
V1OUT
+
V2OUT
V3OUT
V4OUT
V5OUT
+
+
+
+
SEG1–SEG60
COM1–COM16
COMS1–COMS2
LCD
multiplexing
driver
V3
V2
V4
V5
Note : The capacitors for V1OUT and V4OUT must be inserted when 1/26 duty or 1/34 duty drives.
0.1
μ
F to 0.5
μ
F*
Figure 36 Operational Amplifier Output Stabilization Circuit Example when Driving Large Size of
LCD Panel
When an Internal Booster and External Bleeder-Resistors are Used
When the internal operational amplifiers cannot fully drive the LCD panel used, V1 to V5 voltages can be
supplied through external bleeder-resistors (Figure 37). Here, the OPOFF pin must be set to the V
CC
level to
turn off the internal operational amplifiers. Since the internal contrast adjuster is disabled in this case,
contrast must be adjusted externally. Double- and triple-boosters can be used as they are.
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