The microcontroller used in Arduino UNO is the ATmega328p. It is a 8-bit microcontroller with 23 pins, of which 14 are digital input/output pins, 6 are analog input pins, 32KB of flash memory, 2KB of RAM, and 1KB of EEPROM. It operates at a frequency of 16 MHz.
The ATmega328p is a popular microcontroller for embedded systems. It is relatively inexpensive and easy to use. It has a wide range of peripherals, including a USB port, a serial port, a timer, a counter, and a DAC. It also has a built-in oscillator, which makes it easy to get started with.
The ATmega328p is a powerful microcontroller that can be used to create a variety of projects. It is a good choice for beginners and experienced users alike.
Here is a brief explanation of each option:
- Option A: The ATmega328p is a 8-bit microcontroller with 23 pins, of which 14 are digital input/output pins, 6 are analog input pins, 32KB of flash memory, 2KB of RAM, and 1KB of EEPROM. It operates at a frequency of 16 MHz.
- Option B: The ATmega2560 is a 32-bit microcontroller with 54 pins, of which 30 are digital input/output pins, 16 are analog input pins, 256KB of flash memory, 8KB of RAM, and 4KB of EEPROM. It operates at a frequency of 16 MHz.
- Option C: The ATmega32114 is a 16-bit microcontroller with 44 pins, of which 32 are digital input/output pins, 8 are analog input pins, 128KB of flash memory, 8KB of RAM, and 2KB of EEPROM. It operates at a frequency of 20 MHz.
- Option D: The AT91SAM3x8E is a 32-bit microcontroller with 64 pins, of which 32 are digital input/output pins, 8 are analog input pins, 256KB of flash memory, 32KB of RAM, and 16KB of EEPROM. It operates at a frequency of 24 MHz.