I need to use the internal RC oscillator of my ATMega328P and I'd prefer to use the factory calibration rather than perform user calibration. I've looked at the spec and as I understand it, the range on the frequency is 8.0MHz +/- 10% or 7.2-8.8MHz based on the table:
Is that correct? Has someone tested a sample set of these MCUs and seen if this the case or if it is better/worse?
Would appreciate any input you have.