Datasheet
Table Of Contents
- Features
- 1. Ordering Information
- 2. Pinout/Block Diagram
- 3. Overview
- 4. Resources
- 5. Capacitive touch sensing
- 6. AVR CPU
- 7. Memories
- 8. DMAC – Direct Memory Access Controller
- 9. Event System
- 10. System Clock and Clock options
- 10.1 Features
- 10.2 Overview
- 10.3 Clock Sources
- 10.3.1 32kHz Ultra Low Power Internal Oscillator
- 10.3.2 32.768kHz Calibrated Internal Oscillator
- 10.3.3 32.768kHz Crystal Oscillator
- 10.3.4 0.4 - 16MHz Crystal Oscillator
- 10.3.5 2MHz Run-time Calibrated Internal Oscillator
- 10.3.6 32MHz Run-time Calibrated Internal Oscillator
- 10.3.7 External Clock Sources
- 10.3.8 PLL with 1x-31x Multiplication Factor
- 11. Power Management and Sleep Modes
- 12. System Control and Reset
- 13. WDT – Watchdog Timer
- 14. Interrupts and Programmable Multilevel Interrupt Controller
- 15. I/O Ports
- 16. TC0/1 – 16-bit Timer/Counter Type 0 and 1
- 17. TC2 - Timer/Counter Type 2
- 18. AWeX – Advanced Waveform Extension
- 19. Hi-Res – High Resolution Extension
- 20. RTC – 16-bit Real-Time Counter
- 21. USB – Universal Serial Bus Interface
- 22. TWI – Two-Wire Interface
- 23. SPI – Serial Peripheral Interface
- 24. USART
- 25. IRCOM – IR Communication Module
- 26. AES and DES Crypto Engine
- 27. CRC – Cyclic Redundancy Check Generator
- 28. ADC – 12-bit Analog to Digital Converter
- 29. DAC – 12-bit Digital to Analog Converter
- 30. AC – Analog Comparator
- 31. Programming and Debugging
- 32. Pinout and Pin Functions
- 33. Peripheral Module Address Map
- 34. Instruction Set Summary
- 35. Packaging information
- 36. Electrical Characteristics
- 36.1 ATxmega16A4U
- 36.1.1 Absolute Maximum Ratings
- 36.1.2 General Operating Ratings
- 36.1.3 Current consumption
- 36.1.4 Wake-up time from sleep modes
- 36.1.5 I/O Pin Characteristics
- 36.1.6 ADC characteristics
- 36.1.7 DAC Characteristics
- 36.1.8 Analog Comparator Characteristics
- 36.1.9 Bandgap and Internal 1.0V Reference Characteristics
- 36.1.10 Brownout Detection Characteristics
- 36.1.11 External Reset Characteristics
- 36.1.12 Power-on Reset Characteristics
- 36.1.13 Flash and EEPROM Memory Characteristics
- 36.1.14 Clock and Oscillator Characteristics
- 36.1.14.1 Calibrated 32.768kHz Internal Oscillator characteristics
- 36.1.14.2 Calibrated 2MHz RC Internal Oscillator characteristics
- 36.1.14.3 Calibrated and tunable 32MHz internal oscillator characteristics
- 36.1.14.4 32kHz Internal ULP Oscillator characteristics
- 36.1.14.5 Internal Phase Locked Loop (PLL) characteristics
- 36.1.14.6 External clock characteristics
- 36.1.14.7 External 16MHz crystal oscillator and XOSC characteristic
- 36.1.14.8 External 32.768kHz crystal oscillator and TOSC characteristics
- 36.1.15 SPI Characteristics
- 36.1.16 Two-Wire Interface Characteristics
- 36.2 ATxmega32A4U
- 36.2.1 Absolute Maximum Ratings
- 36.2.2 General Operating Ratings
- 36.2.3 Current consumption
- 36.2.4 Wake-up time from sleep modes
- 36.2.5 I/O Pin Characteristics
- 36.2.6 ADC characteristics
- 36.2.7 DAC Characteristics
- 36.2.8 Analog Comparator Characteristics
- 36.2.9 Bandgap and Internal 1.0V Reference Characteristics
- 36.2.10 Brownout Detection Characteristics
- 36.2.11 External Reset Characteristics
- 36.2.12 Power-on Reset Characteristics
- 36.2.13 Flash and EEPROM Memory Characteristics
- 36.2.14 Clock and Oscillator Characteristics
- 36.2.14.1 Calibrated 32.768kHz Internal Oscillator characteristics
- 36.2.14.2 Calibrated 2MHz RC Internal Oscillator characteristics
- 36.2.14.3 Calibrated and tunable 32MHz internal oscillator characteristics
- 36.2.14.4 32kHz Internal ULP Oscillator characteristics
- 36.2.14.5 Internal Phase Locked Loop (PLL) characteristics
- 36.2.14.6 External clock characteristics
- 36.2.14.7 External 16MHz crystal oscillator and XOSC characteristic
- 36.2.14.8 External 32.768kHz crystal oscillator and TOSC characteristics
- 36.2.15 SPI Characteristics
- 36.2.16 Two-Wire Interface Characteristics
- 36.3 ATxmega64A4U
- 36.3.1 Absolute Maximum Ratings
- 36.3.2 General Operating Ratings
- 36.3.3 Current consumption
- 36.3.4 Wake-up time from sleep modes
- 36.3.5 I/O Pin Characteristics
- 36.3.6 ADC characteristics
- 36.3.7 DAC Characteristics
- 36.3.8 Analog Comparator Characteristics
- 36.3.9 Bandgap and Internal 1.0V Reference Characteristics
- 36.3.10 Brownout Detection Characteristics
- 36.3.11 External Reset Characteristics
- 36.3.12 Power-on Reset Characteristics
- 36.3.13 Flash and EEPROM Memory Characteristics
- 36.3.14 Clock and Oscillator Characteristics
- 36.3.14.1 Calibrated 32.768kHz Internal Oscillator characteristics
- 36.3.14.2 Calibrated 2MHz RC Internal Oscillator characteristics
- 36.3.14.3 Calibrated and tunable 32MHz internal oscillator characteristics
- 36.3.14.4 32kHz Internal ULP Oscillator characteristics
- 36.3.14.5 Internal Phase Locked Loop (PLL) characteristics
- 36.3.14.6 External clock characteristics
- 36.3.14.7 External 16MHz crystal oscillator and XOSC characteristic
- 36.3.14.8 External 32.768kHz crystal oscillator and TOSC characteristics
- 36.3.15 SPI Characteristics
- 36.3.16 Two-Wire Interface Characteristics
- 36.4 ATxmega128A4U
- 36.4.1 Absolute Maximum Ratings
- 36.4.2 General Operating Ratings
- 36.4.3 Current consumption
- 36.4.4 Wake-up time from sleep modes
- 36.4.5 I/O Pin Characteristics
- 36.4.6 ADC characteristics
- 36.4.7 DAC Characteristics
- 36.4.8 Analog Comparator Characteristics
- 36.4.9 Bandgap and Internal 1.0V Reference Characteristics
- 36.4.10 Brownout Detection Characteristics
- 36.4.11 External Reset Characteristics
- 36.4.12 Power-on Reset Characteristics
- 36.4.13 Flash and EEPROM Memory Characteristics
- 36.4.14 Clock and Oscillator Characteristics
- 36.4.14.1 Calibrated 32.768kHz Internal Oscillator characteristics
- 36.4.14.2 Calibrated 2MHz RC Internal Oscillator characteristics
- 36.4.14.3 Calibrated and tunable 32MHz internal oscillator characteristics
- 36.4.14.4 32kHz Internal ULP Oscillator characteristics
- 36.4.14.5 Internal Phase Locked Loop (PLL) characteristics
- 36.4.14.6 External clock characteristics
- 36.4.14.7 External 16MHz crystal oscillator and XOSC characteristic
- 36.4.14.8 External 32.768kHz crystal oscillator and TOSC characteristics
- 36.4.15 SPI Characteristics
- 36.4.16 Two-Wire Interface Characteristics
- 36.1 ATxmega16A4U
- 37. Typical Characteristics
- 37.1 ATxmega16A4U
- 37.1.1 Current consumption
- 37.1.2 I/O Pin Characteristics
- 37.1.3 ADC Characteristics
- 37.1.4 DAC Characteristics
- 37.1.5 Analog Comparator Characteristics
- 37.1.6 Internal 1.0V reference Characteristics
- 37.1.7 BOD Characteristics
- 37.1.8 External Reset Characteristics
- 37.1.9 Power-on Reset Characteristics
- 37.1.10 Oscillator Characteristics
- 37.1.11 Two-Wire Interface characteristics
- 37.1.12 PDI characteristics
- 37.2 ATxmega32A4U
- 37.2.1 Current consumption
- 37.2.2 I/O Pin Characteristics
- 37.2.3 ADC Characteristics
- 37.2.4 DAC Characteristics
- 37.2.5 Analog Comparator Characteristics
- 37.2.6 Internal 1.0V reference Characteristics
- 37.2.7 BOD Characteristics
- 37.2.8 External Reset Characteristics
- 37.2.9 Power-on Reset Characteristics
- 37.2.10 Oscillator Characteristics
- 37.2.11 Two-Wire Interface characteristics
- 37.2.12 PDI characteristics
- 37.3 ATxmega64A4U
- 37.3.1 Current consumption
- 37.3.2 I/O Pin Characteristics
- 37.3.3 ADC Characteristics
- 37.3.4 DAC Characteristics
- 37.3.5 Analog Comparator Characteristics
- 37.3.6 Internal 1.0V reference Characteristics
- 37.3.7 BOD Characteristics
- 37.3.8 External Reset Characteristics
- 37.3.9 Power-on Reset Characteristics
- 37.3.10 Oscillator Characteristics
- 37.3.11 Two-Wire Interface characteristics
- 37.3.12 PDI characteristics
- 37.4 ATxmega128A4U
- 37.4.1 Current consumption
- 37.4.2 I/O Pin Characteristics
- 37.4.3 ADC Characteristics
- 37.4.4 DAC Characteristics
- 37.4.5 Analog Comparator Characteristics
- 37.4.6 Internal 1.0V reference Characteristics
- 37.4.7 BOD Characteristics
- 37.4.8 External Reset Characteristics
- 37.4.9 Power-on Reset Characteristics
- 37.4.10 Oscillator Characteristics
- 37.4.11 Two-Wire Interface characteristics
- 37.4.12 PDI characteristics
- 37.1 ATxmega16A4U
- 38. Errata
- 39. Datasheet Revision History
- Table of Contents

3
XMEGA A4U [DATASHEET]
Atmel-8387H-AVR-ATxmega16A4U-34A4U-64A4U-128A4U-Datasheet_09/2014
Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green.
3. For packaging information, see “Instruction Set Summary” on page 63.
4. Tape and Reel
Typical Applications
ATxmega128A4U-AN 128K + 8K 2K 8K
32 1.6 - 3.6V
44A
0°C - 105°C
ATxmega128A4U-ANR
(4)
128K + 8K 2K 8K
ATxmega64A4U-AN 64K + 4K 2K 4K
ATxmega64A4U-ANR
(4)
64K + 4K 2K 4K
ATxmega32A4U-AN 32K + 4K 1K 4K
ATxmega32A4U-ANR
(4)
32K + 4K 1K 4K
ATxmega16A4U-AN 16K + 4K 1K 2K
ATxmega16A4U-ANR
(4)
16K + 4K 1K 2K
ATxmega128A4U-M7 128K + 8K 2K 8K
PW
ATxmega128A4U-M7R
(4)
128K + 8K 2K 8K
ATxmega64A4U-M7 64K + 4K 2K 4K
ATxmega64A4U-M7R
(4)
64K + 4K 2K 4K
ATxmega32A4U-M7 32K + 4K 1K 4K
44M1
ATxmega32A4U-M7R
(4)
32K + 4K 1K 4K
ATxmega16A4U-M7 16K + 4K 1K 2K
ATxmega16A4U-M7R
(4)
16K + 4K 1K 2K
Package Type
44A 44-Lead, 10 x 10mm body size, 1.0mm body thickness, 0.8mm lead pitch, thin profile plastic quad flat package (TQFP)
44M1 44-Pad, 7x7x1mm body, lead pitch 0.50mm, 5.20mm exposed pad, thermally enhanced plastic very thin quad no lead package (VQFN)
PW 44-Pad, 7x7x1mm body, lead pitch 0.50mm, 5.20mm exposed pad, thermally enhanced plastic very thin quad no lead package (VQFN)
49C2 49-Ball (7 x 7 Array), 0.65mm Pitch, 5.0 x 5.0 x 1.0mm, very thin, fine-pitch ball grid array package (VFBGA)
Industrial control Climate control Low power battery applications
Factory automation RF and ZigBee
®
Power tools
Building control USB connectivity HVAC
Board control Sensor control Utility metering
White goods Optical Medical applications
Ordering code Flash (bytes) EEPROM (bytes) SRAM (bytes) Speed (MHz) Power supply Package
(1)(2)(3)
Temp.