Data Sheet

468
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
Figure 31-275. ATmega168PA: Calibrated 8MHz RC Oscillator Frequency vs. Temperature
Figure 31-276. ATmega168PA: Calibrated 8MHz RC Oscillator Frequency vs. OSCCAL Value
5.5V
4.5V
4.0V
3.3V
1.8V
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
8.4
-40 -30 -20 -10 0 10 20 304050607080 90 100 110
Temperature (°C)
F
RC
(MHz)
105°C
85°C
25°C
-40°C
2
4
6
8
10
12
14
0163248 64 80 96112128 144 160 176 192208 224 240 256
OSCCAL (X1)
F
RC
(MHz)