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Product Description
The Arduino Mega is a microcontroller board based on the ATmega1280 (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.
Schematic & Reference Design
EAGLE files: arduino-mega-reference-design.zip
Schematic: arduino-mega-schematic.pdf
Summary
| Microcontroller | ATmega1280 |
| Operating Voltage | 5V |
| Input Voltage (recommended) | 7-12V |
| Input Voltage (limits) | 6-20V |
| Digital I/O Pins | 54 (of which 14 provide PWM output) |
| Analog Input Pins | 16 |
| DC Current per I/O Pin | 40 mA |
| DC Current for 3.3V Pin | 50 mA |
| Flash Memory | 128 KB of which 4 KB used by bootloader |
| SRAM | 8 KB |
| EEPROM | 4 KB |
| Clock Speed | 16 MHz |
More Information
- Arduino Home Page
- Arduino Mega Features
- Schematic
- Programming Reference
- Arduino Forum
- ATMega1280 Datasheet
Additional Information
| Main Chip | ATmega1280 |
| RAM | 8K |
| Flash Memory | 128K |
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