Holtek HT46R47 - Page 143

Typical RC OSC vs. Temperature
Typical RC Oscillator Frequency vs. V
DD
134
A/D Type MCU
f S Y S ( M H z )
V
D D
( V o l t s )
R = 5 6 k
W
R = 7 5 k
W
R = 8 2 k
W
R = 1 0 0 k
W
R = 1 5 0 k
W
R = 3 0 0 k
W
R = 7 5 0 k
W
2 . 4 2 . 6 2 . 8 3 3 . 2
3 . 4 3 . 6 3 . 8
4 4 . 2 4 . 4 4 . 6 4 . 8 5 5 . 2 5 . 4
5 . 6 5 . 8 6
2 . 2
R = 4 3 k
W
1 2
1 0
8
6
4
2
0
V
D D
= 5 V
T (
°
C )
f
O S C
f
O S C
( 2 5
°
C )
0 . 9 2
0 . 9 4
0 . 9 6
0 . 9 8
1
1 . 0 2
1 . 0 4
1 . 0 6
1 . 0 8
- 6 0 - 4 0 - 2 0 0 2 0 4 0 6 0 8 0
1 0 0
V
D D
= 3 V
V
D D
= 5 V
V
D D
= 3 V