Datasheet

285
7799D–AVR–11/10
ATmega8U2/16U2/32U2
Figure 27-24. Calibrated 8 MHz RC Oscillator Frequency vs. Temperature
Figure 27-25. Calibrated 8 MHz RC Oscillator Frequency vs. OSCCAL Value
5.5 V
4.5 V
3.3 V
2.7 V
7.7
7.8
7.9
8
8.1
8.2
8.3
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
F
RC
(MHz)
85 °C
25 °C
-40 °C
0
2
4
6
8
10
12
14
16
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256
OSCCAL (X1)
F
RC
(MHz)