Arduino UNO R3 ATmega328P Development Board

Product details of Arduino UNO R3 ATmega328P Development Board
Arduino Uno R3 is a microcontroller board based on an 8-bit ATmega328P microcontroller. Along with ATmega328P, it consists of other components such as crystal oscillator, serial communication, voltage regulator, etc. to support the microcontroller. Arduino Uno has 14 digital input/output pins (out of which 6 can be used as PWM outputs), 6 analog input pins, a USB connection, A Power barrel jack, an ICSP header, and a reset button.

Specification of Arduino UNO R3 ATmega328P Development Board
Microcontroller ATmega328 DIP
The operating voltage is 5V
The recommended input voltage will range from 7V to 9V
The input voltage ranges from 6V to 20V
Digital input/output pins are 14
Analog i/p pins are 6
DC Current for each input/output pin is 40mA
DC Current for 3.3V Pin is 50mA
Flash Memory 32 KB (ATmega328) of which 0.5 KB used by bootloader SRAM
SRAM is 2KB
EEPROM is 2KB
CLK Speed is 16MHz