The Arduino UNO Rev 3 board is based on the ATmega328P microcontroller with an 8-bit AVR core and operates at 16 MHz, with support for operation up to 20 MHz. It has 14 digital input/output pins, 6 of which support PWM, and 6 analog inputs. It connects to a computer via a USB-B port with USB 2.0 compatibility, while the ICSP header allows programming without a USB connection.
The board has a reset button and 13 built-in LEDs for visual indication. The recommended input voltage is 7–12 V, with a maximum of 20 V.
- Microcontroller: ATmega328P
- Operating speed: 16 MHz, up to 20 MHz
- Flash memory: 32 KB, with 0.5 KB reserved for the bootloader
- SRAM: 2 KB
- EEPROM: 1 KB
- Digital input/output pins: 14, with 6 PWM outputs
- Analog inputs: 6
- Input voltage: 7–12 V recommended, 20 V maximum
- Current per I/O pin: 20 mA
- 3.3 V pin current: 50 mA
- USB connection: USB-B, USB 2.0 compatible
- Programming header: ICSP
- Reset button: Built-in
- LEDs: 13 built-in
- Dimensions: 68.6 × 53.4 mm
- Weight: Approximately 25 g
- Product Number
- A000066
- Type
- Board
- Board Model
- Uno
- Chipset
- ATmega328P
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.