The ATMEGA32U2-AU is a 8-bit low-power CMOS Microcontroller Unit based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1MIPS per MHz allowing the system designed to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 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 up to ten times faster than conventional CISC microcontrollers.
Advanced RISC architecture
125 Powerful instructions
Fully static operation
Up to 16MIPS throughput at 16MHz
Non-volatile program and data memories
True Read-While-Write operation
Programming lock for software security
USB 2.0 full-speed device module with interrupt on transfer completion
4 Programmable endpoints
USART with SPI master only mode and hardware flow control (RTS/CTS)
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