| 1. | “Clock Characteristics” : Updated factory calibration accuracy from ±10% to ±3% in ”Calibrated Internal RC Oscillator Accuracy” on page 305. |
| 2. | “Errata” : Updated ”Errata ATmega48PB” on page 375, ”Errata ATmega88PB” on page 376 and ”Errata ATmega168PB” on page 377. |