ATMEGA164PA_1 Datasheet, PDF (410/468 Pages) ATMEL Corporation – 8-bit Microcontroller with 16/32/64/128K Bytes In-Sytem Programmable Flash

ATmega164PA/324PA/644PA/1284P
Figure 28-129.ATmega644PA: Watchdog Oscillator Frequency vs. V_CC
119
118
117
116
115
114
113
112
111
110
109
108
1.5
2
2.5
3
3.5
4
4.5
5
V_CC (V)
Figure 28-130.ATmega644PA: Calibrated 8 MHz RC Oscillator vs. V_CC
8.4
8.2
8
7.8
7.6
7.4
7.2
2
2.5
3
3.5
4
4.5
5
V_CC (V)
-40 °C
25 °C
85 °C
5.5
85 °C
25 °C
-40 °C
5.5
8152G–AVR–11/09
410