Overview. The Arduino Uno SMD is a version of the Arduino Uno, but uses a 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 (datasheet).
Microcontroller: ATmega328
Digital I/O Pins: 14 (of which 6 provide PWM o...
Flash Memory: 32 KB (ATmega328) of which 0.5 ...
EEPROM: 1 KB (ATmega328)