Arduino大ATmega1280

Arduino MEGA ATmega1280IntroductionThe Arduino Mega is a microcontroller board based on theATmega1280.It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4UARTs(hardware serial ports), a 16MHzcrystal 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 Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.specificationsMicrocontrollerATmega1280Operating Voltage5VInput Voltage (recommended)7-12VInput Voltage (limits)6-20VDigital I/O Pins54 (of which 14 provide PWM output)Analog Input Pins16DC Current per I/O Pin40 mADC Current for 3.3V Pin50 mAFlash Memory128 KB of which 4 KB used by bootloaderSRAM8 KBEEPROM4 KBClock Speed16MHz