Atmel ATmega328 - Page 401

401
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
30.3.11 Internal Oscillator Speed
Figure 30-129.ATmega88A: Watchdog Oscillator Frequency vs. Temperature
Figure 30-130.ATmega88A: Watchdog Oscillator Frequency vs. V
CC
5.5 V
4.0 V
3.3 V
2.7 V
105
106
107
108
109
110
111
112
113
114
-40 -20 0 20 40 60 80 100
Temperature (°C)
F
RC
(kHz)
85 °C
25 °C
-40 °C
104
106
108
110
112
114
116
1.522.533.544.555.5
V
CC
(V)
F
RC
(kHz)