The ATmega328 is a popular 8-bit microcontroller from Microchip Technology (formerly Atmel), widely used in embedded systems and Arduino boards. Key features include: Core: 8-bit AVR RISC architecture. Clock Speed: Up to 20 MHz. Flash Memory: 32 KB for program storage. SRAM: 2 KB for runtime data. EEPROM: 1 KB for non-volatile data storage. I/O Pins: 23 general-purpose input/output pins. Timers: Three (2x 8-bit, 1x 16-bit). ADC: 10-bit, 6-channel Analog-to-Digital Converter. Communication: Supports UART, I2C, and SPI protocols. Power: Operates from 1.8V to 5.5V. (B.1)
