GMS81C1102 / GMS81C1202
Typical RC Oscillator
Frequency VS. VDD
Typical RC Oscillator
Frequency VS. VDD
FO SC
(M Hz)
1.6
FO SC
(MHz)
Cext=39pF
Ta=25
Cext=24pF
Ta=25
°
C
°
C
2.5
1.4
R=20K
1.2
1.0
2.0
1.5
1.0
0.5
0
R=20k
R=33K
R=33K
0.8
0.6
R=47K
R=47K
0.4
R=100K
R=100K
0.2
0
VDD
(V)
VDD
(V)
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
Typical RC Oscillator
Frequency VS. Tem perature
Typical RC Oscillator
Frequency VS. VDD
FO SC
FOSC (25
FO SC
(MHz)
0.8
°
C)
Cext=24pF
R=25K
Cext=100pF
Ta=25
1.010
1.005
1.000
0.995
0.990
0.985
0.980
0.975
°
C
0.7
R=20K
0.6
0.5
V
=5V
R=33K
DD
0.4
0.3
R=47K
0.2
R=100K
V
=3V
DD
0.1
0
VD D
(V)
VDD
(V)
2.5
3
3.5
4
4.5
5
5.5
6
0
10
20
30
40
50
60
70
Average
Fosc @ 5V,25°C
Cext
Rext
20K
33K
47K
100K
20K
33K
47K
100K
20K
33K
47K
100K
2.02MHz
1.34MHz
0.952MHz
0.48MHz
1.536MHz
1.012MHz
0.72MHz
0.364MHz
0.78MHz
0.512MHz
0.364MHz
0.18MHz
±14.11%
±11.50%
±10.30%
±9.07%
24pF
39pF
±14.79%
±11.67%
±10.42%
±9.75%
±13.53%
±10.35%
±9.48%
100pF
±7.34%
Table 11-1 RC Oscillator Frequencies
Jan. 2002 ver 2.0
25
HYNIX [ HYNIX SEMICONDUCTOR ]
