Datasheet

394
8021G–AVR–03/11
ATmega329P/3290P
29.2.11 Internal Oscillator Speed
Figure 29-98. ATmega3290P: Watchdog Oscillator Frequency vs. V
CC
Figure 29-99. ATmega3290P: Watchdog Oscillator Frequency vs. Temperature
85 °C
25 °C
-45 °C
1000
1050
1100
1150
1200
1250
1300
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(kHz)
5.5 V
4.0 V
3.3 V
2.7 V
2.1 V
140
145
150
155
160
165
170
-60 -40 -20 0 20 40 60 80100
Temperature (°C)
F
RC
(kHz)