參數(shù)資料
型號(hào): HCD66717A03
廠商: Hitachi,Ltd.
元件分類: 晶體
英文描述: (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
中文描述: (低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
文件頁數(shù): 85/90頁
文件大?。?/td> 716K
代理商: HCD66717A03
HD66717
537
14.Applies to the internal oscillator operations using oscillation resistor R
f
(Figure 49).
OSC1
OSC2
R
f
Referential data
Since the oscillation frequency varies depending on the OSC1 and
OSC2 pin capacitance, the wiring length to these pins should be
minimized.
200
150
100
50
0
100
200
300
400
500
600
700
800
R
f
(k
)
f
O
150
160
V
CC
=3V (typ.)
V
CC
=5V (typ.)
Figure 49 Internal Oscillation
15.Booster characteristics test circuits are shown in Figure 50.
( Triple boosting )
GND
V
CC
1
μ
F
1
μ
F
+
Vci
C1
C2
V5OUT2
V5OUT3
1
μ
F
( Double boosting )
GND
V
CC
1
μ
F
+
1
μ
F
Vci
C1
C2
V5OUT2
V5OUT3
V
EE
+
+
V
EE
+
Figure 50 Booster
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