Arduino UNO R3 Development Board

Arduino Uno R3 Development Board (ATmega328P)

• Microcontroller: ATmega328P-based development board.

• Naming: "Uno" means "one" in Italian, marking the release of Arduino 1.0.

• Input/Output:

  • 14 digital I/O pins (6 capable of PWM output).

  • 6 analog input pins.

• Clock & Memory:

  • 16 MHz ceramic resonator.

  • 32 KB Flash memory (0.5 KB used by bootloader).

  • 2 KB SRAM, 1 KB EEPROM.

• Power Options:

  • Can be powered via USB or external supply (6-20V).

  • Recommended supply voltage: 7-12V.

  • Power source selection is automatic.

• Unique Feature: Unlike previous boards, the Uno R3 uses the Atmega16U2 (Atmega8U2 in earlier versions) as a USB-to-serial converter, instead of the FTDI chip.

• External Power Details:

  • AC-to-DC adapter (2.1mm center-positive plug) or battery.

  • Gnd and Vin pin headers for battery connection.

  • Voltage regulator considerations: less than 7V may cause instability; more than 12V may overheat and damage the board.

• Electrical Specifications:

  • Operating Voltage: 5V.

  • Maximum Supply Voltage: 20V (not recommended).

  • DC Current per I/O Pin: 40 mA.

  • DC Current for 3.3V Pin: 50 mA.

• Clock Speed: 16 MHz.

• Additional Note: The image provided is for representation purposes only.

• Bulk Enquiries: Contact sales(at)electroncomponents.com for bulk pricing.