Arduino UNO

The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter.

Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.

 

ARDUINO MICROCONTROLLER

Microcontroller

ATmega328

Architecture

AVR

Operating Voltage

5 V

Flash memory

32 KB of which 0.5 KB used by bootloader

SRAM

2 KB

Clock Speed

16 MHz

Analog I/O Pins

6

EEPROM

1 KB

DC Current per I/O Pins

40 mA on I/O Pins; 50 mA on 3,3 V Pin

GENERAL

Input Voltage

7-12 V

Digital I/O Pins

20 (of wich 6 provide PWM output)

PWM Output

6

PCB Size

53.4 x 68.6 mm

Weight

25 g

Product Code

A000066 (TH); A000073 (SMD)