Data Sheet

588
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
34.10 Internal Oscillator Speed
Figure 34-36.ATmega168PA: Watchdog Oscillator Frequency vs. Temperature
Figure 34-37.ATmega168PA: Watchdog Oscillator Frequency vs. V
CC
5.5V
5.0V
4.5V
4.0V
3.3V
2.7V
108
110
112
114
116
118
120
122
-40 -30 -20 -10 0 10 20 304050607080 90100
Temperature (°C)
F
RC
(kHz)
105°C
85°C
25°C
-40°C
108
110
112
114
116
118
120
122
2 2.5 33.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(kHz)