EM78P447S
OTP ROM
Cext=100pF, Typical RC OSC Frequency
1.4
1.2
1
R = 3.3 k
R = 5.1 k
R = 10 k
R = 100 k
0.8
0.6
0.4
0.2
0
2.5
3
3.5
4
4.5
5
5.5
VDD(Volt)
Fig. 25 Typical RC OSC Frequency vs. VDD (Cext=100pF, Temperature at 25 ℃)
ERC OSC Frequency vs Temp.(Cext=100pF, Rext=5.1K)
1.006
1.004
1.002
1
5V
0.998
3V
0.996
0.994
0.992
0
10
20
30
40
50
60
70
Temperature(℃)
Fig. 26 Typical RC OSC Frequency vs. Temperature(R and C are ideal component)
This specification is subject to change without prior notice.
42
06.25.2003 (V1.1)