Arduino MEGA 2560 - User Manual

The Arduino Mega 2560 is a microcontroller board based on the ATmega2560
(datasheet). It has 54 digital input/output pins (of which 14 can be used as PWM outputs),
16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz 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.

Arduino MEGA 2560 Specifications

General

Microcontroller	ATmega2560
Operating Voltage	5V
Input Voltage (recommended)	7-12V
Input Voltage (limit)	6-20V
Digital I/O Pins	54
PWM Channels	15
Analog Input Pins	16
DC Current per I/O Pin	20 mA
DC Current for 3.3V Pin	50 mA
Flash Memory	256 KB of which 8 KB used by bootloader
SRAM	8 KB
EEPROM	4 KB
Clock Speed	16 MHz
LED_BUILTIN	13
Length	101.52 mm
Width	53.3 mm
Weight	37 g

Summary

Technical Specification

Input and Output

Serial Communication

Handles TTL serial data transmission and reception via dedicated pins.

External Interrupts

Pins that can trigger interrupts on specific event changes.

PWM Output

SPI Communication

I2 C Bus

Analog Inputs

Pins for reading analog voltage levels with 10-bit resolution.

Power

Memory

Communication

Programming

Automatic (Software) Reset

USB Overcurrent Protection

How to use Arduino

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