This is DFRduino UNO SMD. It is compatible with Arduino UNO SMD. 

 

The Arduino Uno SMD is a version of the Arduino Uno, but uses an surface mount version of the Atmega328P instead of the through-hole version. This version was made in response to a shortage in supply of the through-hole Atmega328P. The board is 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 crystal oscillator, 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 Atmega8U2 programmed as a USB-to-serial converter.

 

"Uno" means one in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and version 1.0 will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform; for a comparison with previous versions, see the index of Arduino boards.

 

Summary

 

* Microcontroller ATmega328

* Operating Voltage 5V

* Input Voltage (recommended) 7-12V

* Input Voltage (limits) 6-20V

* Digital I/O Pins 14 (of which 6 provide PWM output)

* Analog Input Pins 6

* DC Current per I/O Pin 40 mA

* DC Current for 3.3V Pin 50 mA

* Flash Memory 32 KB of which 2KB used by bootloader

* SRAM 2 KB

* EEPROM 1 KB

* Clock Speed 16 MHz

 

Specification

 

* Size:75x54x15 mm

* Weight:45 gram

Arduino Uno SMD Schematic