ATMEGA8_08 Datasheet, PDF (276/308 Pages) ATMEL Corporation – 8-bit with 8K Bytes In-System Programmable Flash

Figure 171. Calibrated 8 MHz RC Oscillator Frequency vs. V_CC
8.5
8.3
8.1
7.9
7.7
7.5
7.3
7.1
6.9
6.7
6.5
2.5
CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. V_CC
3
3.5
4
4.5
5
V_CC (V)
-40°C
25°C
85°C
5.5
Figure 172. Calibrated 8 MHz RC Oscillator Frequency vs. Osccal Value
CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE
16
14
12
10
8
6
4
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
OSCCAL VALUE
276 ATmega8(L)
2486T–AVR–05/08