Datasheet

ManualsBrandsMicrochip ManualsAVR MicrocontrollersAVR Microcontroller Flash 128KB VQFN

Table Of Contents

Features
1. Ordering Information
2. Pinout/Block Diagram
3. Overview
- 3.1 Block Diagram
4. Resources
- 4.1 Recommended reading
5. Capacitive touch sensing
6. AVR CPU
- 6.1 Features
- 6.2 Overview
- 6.3 Architectural Overview
- 6.4 ALU - Arithmetic Logic Unit
  - 6.4.1 Hardware Multiplier
- 6.5 Program Flow
- 6.6 Status Register
- 6.7 Stack and Stack Pointer
- 6.8 Register File
7. Memories
- 7.1 Features
- 7.2 Overview
- 7.3 Flash Program Memory
- 7.4 Fuses and Lock bits
- 7.5 Data Memory
- 7.6 EEPROM
- 7.7 I/O Memory
  - 7.7.1 General Purpose I/O Registers
- 7.8 Data Memory and Bus Arbitration
- 7.9 Memory Timing
- 7.10 Device ID and Revision
- 7.11 I/O Memory Protection
- 7.12 Flash and EEPROM Page Size
8. DMAC – Direct Memory Access Controller
- 8.1 Features
- 8.2 Overview
9. Event System
- 9.1 Features
- 9.2 Overview
10. System Clock and Clock options
- 10.1 Features
- 10.2 Overview
- 10.3 Clock Sources
11. Power Management and Sleep Modes
- 11.1 Features
- 11.2 Overview
- 11.3 Sleep Modes
12. System Control and Reset
- 12.1 Features
- 12.2 Overview
- 12.3 Reset Sequence
- 12.4 Reset Sources
13. WDT – Watchdog Timer
- 13.1 Features
- 13.2 Overview
14. Interrupts and Programmable Multilevel Interrupt Controller
- 14.1 Features
- 14.2 Overview
- 14.3 Interrupt vectors
15. I/O Ports
- 15.1 Features
- 15.2 Overview
- 15.3 Output Driver
- 15.4 Input sensing
- 15.5 Alternate Port Functions
16. TC0/1 – 16-bit Timer/Counter Type 0 and 1
- 16.1 Features
- 16.2 Overview
17. TC2 - Timer/Counter Type 2
- 17.1 Features
- 17.2 Overview
18. AWeX – Advanced Waveform Extension
- 18.1 Features
- 18.2 Overview
19. Hi-Res – High Resolution Extension
- 19.1 Features
- 19.2 Overview
20. RTC – 16-bit Real-Time Counter
- 20.1 Features
- 20.2 Overview
21. USB – Universal Serial Bus Interface
- 21.1 Features
- 21.2 Overview
22. TWI – Two-Wire Interface
- 22.1 Features
- 22.2 Overview
23. SPI – Serial Peripheral Interface
- 23.1 Features
- 23.2 Overview
24. USART
- 24.1 Features
- 24.2 Overview
25. IRCOM – IR Communication Module
- 25.1 Features
- 25.2 Overview
26. AES and DES Crypto Engine
- 26.1 Features
- 26.2 Overview
27. CRC – Cyclic Redundancy Check Generator
- 27.1 Features
- 27.2 Overview
28. ADC – 12-bit Analog to Digital Converter
- 28.1 Features
- 28.2 Overview
29. DAC – 12-bit Digital to Analog Converter
- 29.1 Features
- 29.2 Overview
30. AC – Analog Comparator
- 30.1 Features
- 30.2 Overview
31. Programming and Debugging
- 31.1 Features
- 31.2 Overview
32. Pinout and Pin Functions
- 32.1 Alternate Pin Function Description
- 32.2 Alternate Pin Functions
33. Peripheral Module Address Map
34. Instruction Set Summary
35. Packaging information
- 35.1 44A
- 35.2 PW
- 35.3 44M1
- 35.4 49C2
36. Electrical Characteristics
- 36.1 ATxmega16A4U
- 36.2 ATxmega32A4U
- 36.3 ATxmega64A4U
- 36.4 ATxmega128A4U
37. Typical Characteristics
- 37.1 ATxmega16A4U
- 37.2 ATxmega32A4U
- 37.3 ATxmega64A4U
- 37.4 ATxmega128A4U
38. Errata
- 38.1 ATxmega16A4U
  - 38.1.1 Rev. E
  - 38.1.2 Rev. A - D
- 38.2 ATxmega32A4U
  - 38.2.1 Rev. E
  - 38.2.2 Rev. A - D
- 38.3 ATxmega64A4U
- 38.4 ATxmega128A4U
  - 38.4.1 rev. A
39. Datasheet Revision History
- 39.1 8387H –09/2014
- 39.2 8387G – 03/2014
- 39.3 8387F – 01/2014
- 39.4 8387E – 11/2013
- 39.5 8387D – 02/2013
- 39.6 8387C – 03/2012
- 39.7 8387B – 12/2011
- 39.8 8387A – 07/2011
Table of Contents

69

XMEGA A4U [DATASHEET]

Atmel-8387H-AVR-ATxmega16A4U-34A4U-64A4U-128A4U-Datasheet_09/2014

35.2 PW