參數(shù)資料
型號: HD61830B00H
廠商: Hitachi,Ltd.
英文描述: LCDC (LCD Timing Controller)
中文描述: LCDC(LCD定時控制器)
文件頁數(shù): 26/43頁
文件大小: 173K
代理商: HD61830B00H
HD61830/HD61830B
26
9. The current which flows into the input and output circuits is excluded. When the input of CMOS is
in the intermediate level, current flows through the input circuit, resulting in the increase of power
supply current. To avoid this, input must be fixed at high or low.
The relationship between the operating frequency and the power dissipation is given below.
50
40
30
20
10
0
250
500
750
1000
1250
1500
f
OSC
(kHz)
Max
Typ
P
W
10.Applied to the operation of the internal oscillator when oscillation resistor R
f
and oscillation
capacity C
f
are used.
R
C
CR
C
f
R
f
C
f
= 15 pF
±
5%
R
f
= 39 k
±
2%
(when f
OSC
=
500 kHz typ)
The relationship among oscillation frequency, R
f
and C
f
is given below.
40
60
80
100
120
140
160
180
R
f
(k
)
800
600
400
200
0
T
a
= 25
°
C, V
CC
= 5 V
C
f
= 10 pF
C
f
= 15 pF
f
OSC
(kHz)
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