4-Bit/8-Bit MCU

The AVR XMEGA™ A3 is a family of low power, high performance and peripheral rich CMOS 8/16-bit microcontrollers based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the XMEGA A3 achieves throughputs approaching 1 Million Instructions Per Second (MIPS) per MHz allowing the system designer to optimize power consumption versus processing speed.The AVR CPU combines a rich instruction set with 32 general purpose working registers. All the32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction, executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs many times faster than conventional single-accumulator or CISC based microcontrollers.

• High-performance, Low-power 8/16-bit AVR® XMEGA™ Microcontroller
• non--volatile Program and Data Memories
• Power-on Reset and Programmable Brown-out Detection
• Internal and External Clock Options with PLL
• Programmable Multi-level Interrupt Controller
• Sleep Modes: Idle, Power-down, Standby, Power-save, Extended Standby
• Advanced Programming, Test and Debugging Interfaces
  • JTAG (IEEE 1149.1 Compliant) Interface for test, debug and programming
  • PDI (Program and Debug Interface) for programming, test and debugging