Atmel ATmega48A - Page 451

451
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
30.5.11 Internal Oscillator Speed
Figure 30-223.ATmega168A: Watchdog Oscillator Frequency vs. Temperature
Figure 30-224.ATmega168A: Watchdog Oscillator Frequency vs. V
CC
5.5 V
3.3 V
2.7 V
111
113
115
117
119
121
-40 -30 -20 -10 0 10 20 30 40 50 60 70 8090
Temperature (°C)
F
RC
(kHz)
85 °C
25 °C
-40 °C
110
112
114
116
118
120
122
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(kHz)