The Arduino Mega 2560 is a microcontroller board based on the <span class="wikiword">ATmega2560</span>. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 <span class="wikiword">UARTs</span> (hardware serial ports), a 16 <span class="wikiword">MHz</span> 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 Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.<br><br>
<div><span style="text-decoration: underline;">Summary</span></div>
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<div>Microcontroller</div>
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<div><span class="wikiword">ATmega2560</span></div>
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<div>Operating Voltage</div>
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<div>5V</div>
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<div>Input Voltage (recommended)</div>
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<div>7-12V</div>
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<div>Input Voltage (limits)</div>
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<div>6-20V</div>
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<div>Digital I/O Pins</div>
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<div>54 (of which 15 provide PWM output)</div>
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<div>Analog Input Pins</div>
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<div>16</div>
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<div>DC Current per I/O Pin</div>
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<div>40 mA</div>
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<div>DC Current for 3.3V Pin</div>
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<div>50 mA</div>
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<div>Flash Memory</div>
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<div>256 KB of which 8 KB used by bootloader</div>
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<div>SRAM</div>
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<div>8 KB</div>
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<div>EEPROM</div>
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<div>4 KB</div>
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<div>Clock Speed</div>
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<div>16 <span class="wikiword">MHz</span></div>
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