ATMEGA48_10 Datasheet, PDF (11/19 Pages) ATMEL Corporation – Microcontroller with 8K Bytes In-System Programmable Flash

ATmega88/168 Automotive
Figure 2-16. Calibrated 8 MHz RC Oscillator Frequency versus Temperature
8.4
5.5V
5.0V
8.3
4.5V
3.3V
8.2
3.0V
2.7V
8.1
8.0
7.9
7.8
7.7
7.6
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Temperature
Figure 2-17. Calibrated 8 MHz RC Oscillator Frequency versus V_CC
8.4
8.3
8.2
8.1
8.0
7.9
150_°C
125°C
85_°C
25°C
-40°C
7.8
7.7
7.6
2
2.5
3
3.5
4
4.5
5
5.5
6
V_CC (V)
Figure 2-18. Calibrated 8 MHz RC Oscillator Frequency versus OSCCAL Value
16
14
150°C
-40°C
12
10
8
6
4
2
0
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256
OSCCAL (X1)
11
7607H–AVR–02/10