Arduino® UNO R3

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Arduino® UNO R3

Modified: 26/08/2022

Features

ATMega328P Processor

Memory

AVR CPU at up to 16 MHz

32KB Flash

2KB SRAM

1KB EEPROM

Security

Power On Reset (POR)

Brown Out Detection (BOD)

Peripherals

2x 8-bit Timer/Counter with a dedicated period register and compare channels

1x 16-bit Timer/Counter with a dedicated period register, input capture and compare channels

1x USART with fractional baud rate generator and start-of-frame detection

1x controller/peripheral Serial Peripheral Interface (SPI)

1x Dual mode controller/peripheral I2C

1x Analog Comparator (AC) with a scalable reference input

Watchdog Timer with separate on-chip oscillator

Six PWM channels

Interrupt and wake-up on pin change

ATMega16U2 Processor

8-bit AVR® RISC-based microcontroller

Memory

16 KB ISP Flash

512B EEPROM

512B SRAM

debugWIRE interface for on-chip debugging and programming

Power

2.7-5.5 volts