Atmel ATmega128

350
2467S–AVR–07/09
ATmega128
Figure 194. Calibrated 1 MHz RC Oscillator Frequency vs. V
CC
Figure 195. 1 MHz RC Oscillator Frequency vs. Osccal Value
CALIBRATED 1MHz RC OSCILLATOR FREQUENCY vs. Vcc
85 ˚C
25 ˚C
-40 ˚C
0.9
0.92
0.94
0.96
0.98
1
1.02
2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(MHz)
1MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE
25 ˚C
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256
OSCCAL VALUE
F
RC
(MHz)