Introduction

The ATxmega256A3U/192A3U/128A3U/64A3U devices you have received conform functionally to the current device data sheet (ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8386-8-and-16-bit-AVR-Microcontroller-ATxmega64A3U-128A3U-192A3U-256A3U_datasheet.pdf), except for the anomalies described in this document. The errata described in this document will likely be addressed in future revisions of the ATxmega256A3U/192A3U/128A3U/64A3U devices.