Datasheet

430
8011Q–AVR–02/2013
ATmega164P/324P/644P
28.1.8 Internal Oscillator Speed
Figure 28-28. ATmega164P: Watchdog Oscillator Frequency vs. Temperature
Figure 28-29. ATmega164P: Watchdog Oscillator Frequency vs. V
CC
5.5 V
4.0 V
3.3 V
2.7 V
1.8 V
112
114
116
118
120
122
124
126
128
-60 -40 -20 0 20 40 60 80100120
Temperature (C ° )
F
RC
(kHz)
105 °C
85 °C
25 °C
-40 °C
113
115
117
119
121
123
125
127
129
1.5 2 2.5 33.5 4 4.5 5 5.5
V
CC
(V)
F
RC
(kHz)