The Microchip ATMEGA328P-AUR is an 8-bit AVR microcontroller featuring a RISC architecture running up to 20 MHz, delivering nearly 1 MIPS per MHz for efficient embedded control. It provides 32 KB Flash, 2 KB SRAM, and 1 KB EEPROM, with 23 I/O pins, 6 PWM channels, an 8-channel 10-bit ADC, SPI, I²C, and USART interfaces. Operating from 1.8 V to 5.5 V and packaged in a 32-pin TQFP, it offers flexible timer/counter options and multiple low-power modes for energy-sensitive applications.