4.1 Revision History


Doc. Rev.	Date	Comments
D	03/2025	Document: Editorial updates Added errata: Device: Write Operation Lost if Consecutive Writes to Specific Address Spaces Frequency Drift of 16/20 MHz Oscillator at High Supply and High Temperature Added data sheet clarifications: ADC: Temperature Sensor Events SPI: SPI Clock UPDI: Chip Erase Electrical Characteristics: Power Consumption I/O Pin Characteristics SPI - Timing Characteristics Programming Time
C	06/2022	Updated errata: Device - Writing the OSCLOCK Fuse in FUSE.OSCCFG to ‘1’ Prevents Automatic Loading of Calibration Values USART - Start-of-Frame Detection Can Unintentionally Be Triggered in Active Mode Added errata NVMCTRL - Wrong Reset Value of NVMCTRL.CTRLA Register TCD - Halting TCD and Waiting for SW Restart Does Not Work if Compare Value A is ‘`0`’ or Dual Slope Mode is Used USART - Receiver Non-Functional after Detection of Inconsistent Synchronization Field Added data sheet clarifications: Memories - Fuses - Factory Default Values SLPCTRL - Sleep Mode Activity Overview
B	12/2020	Added errata CCL - The CCL Must be Disabled to Change the Configuration of a Single LUT TCA - Restart Will Reset Counter Direction in NORMAL and FRQ Mode TCB - CCMP and CNT Registers Act as 16-Bit Registers in 8-Bit PWM Mode TCD - Asynchronous Input Events Not Working When TCD Counter Prescaler is Used USART - Start-of-Frame Detection Can Unintentionally Be Triggered in Active Mode Added data sheet clarifications Package marking information USART TX is double-buffered
A	05/2020	Initial document release