32.4.1 Calibrated Internal RC Oscillator Accuracy

Table 32-4. Calibration Accuracy of Internal RC Oscillator
FrequencyVCC TemperatureCalibration Accuracy
Factory
 Calibration8.0MHz2.7V - 4.2V0°C to +50°C±2%
8.0MHz1.8V - 5.5V0°C to +70°C±3.5%
8.0MHz1.8V - 5.5V-40°C to +105°C±5%
User
 Calibration

Fixed frequency within:
7.3 - 8.1MHz

Fixed voltage within:
1.8V - 5.5V

Fixed temperature within:
-40°C to +105°C

±1%