Overview: The ATXMEGA128A1U-AU is a cutting-edge 8/16-bit AVR® microcontroller designed to deliver high performance and low power consumption. With 128 KB of Flash program memory, 8 KB boot code section, and an extensive range of peripherals, this microcontroller is well-suited for complex embedded applications.

Key Features:

• Memory:

  • 128 KB Self-programming Flash program memory
  • 8 KB Boot code section
  • 8 KB SRAM
  • 2 KB EEPROM
  • External bus interface for up to 16 MB SRAM and 128 Mbit SDRAM

• Peripheral Features:

  • Four-channel DMA controller
  • Eight-channel event system
  • Eight 16-bit timer/counters with advanced waveform extension (AWeX)
  • One USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) device interface
  • Eight USARTs with IrDA support
  • Four two-wire interfaces (I2C/SMBus compatible)
  • Four SPI interfaces
  • AES and DES crypto engine
  • CRC-16 and CRC-32 generators
  • 16-bit Real-Time Counter (RTC) with separate oscillator
  • Two 12-bit ADCs (2 MSPS) and two 12-bit DACs (1 MSPS)
  • Four Analog Comparators (ACs) with window compare function

• Special Features:

  • Power-on reset and programmable brown-out detection
  • Internal and external clock options with PLL and prescaler
  • Programmable multilevel interrupt controller
  • Five sleep modes
  • QTouch® library support for capacitive touch buttons, sliders, and wheels

• Programming and Debug Interfaces:

  • JTAG (IEEE 1149.1 compliant) interface, including boundary scan
  • PDI (Program and Debug Interface)

• I/O and Packages:

  • 78 Programmable I/O pins
  • Available in 100-lead TQFP, 100-ball BGA, and 100-ball VFBGA packages

• Operating Voltage and Frequency:

  • Voltage: 1.6 – 3.6V
  • Frequency: 0 – 12 MHz from 1.6V; 0 – 32 MHz from 2.7V

The ATXMEGA128A1U-AU microcontroller is designed to handle a wide range of embedded system requirements, combining high performance with low power consumption and an extensive suite of features to support complex applications.