Internal Oscillator Speed

Figure 1. ATmega48PB_88PB: Watchdog Oscillator Frequency vs. Temperature

Figure 2. ATmega48PB_88PB: Watchdog Oscillator Frequency vs. V_CC

Figure 3. ATmega48PB_88PB: Calibrated 8MHz RC Oscillator Frequency vs. V_CC

Figure 4. ATmega48PB_88PB: Calibrated 8MHz RC Oscillator Frequency vs. Temperature

Figure 5. ATmega48PB_88PB: Calibrated 8MHz RC Oscillator Frequency vs. OSCCAL Value