atmega328p datasheet

The ATmega328P is a high-performance, low-power 8-bit microcontroller based on the AVR enhanced RISC architecture. It is the heart of Arduino UNO, and various other development boards and products. The ATmega328P features 32KB of in-system self-programmable flash memory, 1KB of EEPROM, 2KB of SRAM, 23 general-purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, special Microchip QTouch® peripheral touch controller, a byte-oriented two-wire serial interface, and a 6-channel 10-bit A/D converter. The ATmega328P operates between 1.8-5.5 volts and can run at a maximum clock speed of 20MHz. It is designed for ease of use and integration, with a wide range of peripherals, and compatibility with industry-standard development tools. With its high-performance, low-power consumption, and extensive feature set, the ATmega328P is the ideal choice for a wide range of applications, including industrial control, consumer electronics, automotive, and more.