Atmel ATmega48PV

420
8025I–AVR–02/09
ATmega48P/88P/168P/328P
Figure 27-175.Calibrated 8 MHz RC Oscillator Frequency vs. Temperature.
Figure 27-176.Calibrated 8 MHz RC Oscillator Frequency vs. OSCCAL Value.
CALIBRATED 8 MHz RC OSCILLATOR FREQUENCY vs. TEMPERATURE
5.0 V
3.0 V
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
8.4
-50 -40 -30 -20 -10 0 10 20 30405060708090100
Temperature
F
RC
(MHz)
CALIBRATED 8 MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE
85 °C
25 °C
-40 °C
0
2
4
6
8
10
12
14
16
0163248 64 8096112128 144 160 176 192 208 224 240 256
OSCCAL (X1)
F
RC
(MHz)