The ATXMEGA64A3U-AU is a 8-bit low power and peripheral rich microcontrollers based on the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the AVR XMEGA device achieves throughputs CPU approaching one million instructions per second (MIPS) per megahertz, 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 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a 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.
Non-volatile program and data memories
4-channel DMA controller
8-channel event system
Seven 16-bit timer/counters
One USB device interface
3 Serial peripheral interfaces (SPIs)
External interrupts on all general purpose I/O pins
Programmable watchdog timer with separate on-chip ultralow power oscillator
5 sleep modes
Power-on reset and programmable brown-out detection
Programmable multi-level interrupt controller
Industrial, Automation & Process Control, Building Automation, Sensing & Instrumentation, Power Management, HVAC, Metering, Medical
I2C, SPI, UART, USB
MSL 3 – 168 hours
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