Arduino Mega2560 R3

Arduino Mega 2560 R3
CH340G replace the Atmega 8U2/16U2
Microcontroller: ATmega256-16AU
Clock Speed: 16 MHz
EEPROM: 4 KB
SRAM: 8 KB
Flash Memory: 256 KB of which 8 KB used by bootloader
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Analog Input Pins: 16
Digital I/O Pins: 54 (of which 14 provide PWM output)
DC Current for 3.3V Pin: 50 mA
DC Current per I/O Pin: 40 mA
 
The MEGA 2560 Board can be powered via the USB connection or with an external power supply. The power source is selected automatically.