
366
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 29-39. Atmel ATmega164A: Calibrated 8MHz RC oscillator vs. temperature.
Figure 29-40. Atmel ATmega164A: Calibrated 8MHz RC oscillator vs. OSCCAL value.
5.0V
3.0V
7.7
7.8
7.9
8.0
8.1
8.2
8.3
-50
-40
-30
-20
-10
0
10
20
3040506070
8090
Temperature [°C]
F
RC
[M
Hz
]
85°C
25°C
-40°C
0
2
4
6
8
10
12
14
16
016
3248
64
8096
112 128 144 160 176 192 208 224 240 256
OSCCAL [X1]
F
RC
[M
Hz
]