DatasheetProduct Overview
The ATMEGA2560-16AUR is a high-performance, low-power 8-bit microcontroller based on the Microchip AVR® enhanced RISC architecture. This is the powerful IC at the heart of the Arduino Mega and many other advanced controller boards. It is the ideal choice for complex projects that demand a massive amount of I/O and a large program memory, far exceeding the capabilities of standard 8-bit MCUs.
By executing powerful instructions in a single clock cycle, the ATmega2560 achieves throughputs approaching 1 MIPS per MHz. This allows you, the system designer, to optimize power consumption and processing speed perfectly.
Massive Memory for Complex Applications
The ATmega2560’s primary advantage is its vast resources. This MCU is equipped with 256KB of Flash (for program code), 8KB of SRAM (for runtime variables), and 4KB of EEPROM (for non-volatile data storage). This massive program memory is essential for applications with large codebases, complex logic, or multiple libraries.
Unmatched Connectivity and Peripherals
Connectivity is where the ATmega2560 truly shines, providing 86 general-purpose I/O lines that give you the freedom to connect to a vast number of sensors, actuators, displays, buttons, and other components.
Its rich peripheral set is designed to handle almost any task, and includes:
- A 16-channel, 10-bit A/D converter for reading numerous analog sensors.
- A full suite of communication interfaces, including I2C, SPI, and UART/USART, for connecting to peripherals and other devices.
- An EBI/EMI (External Bus Interface) for applications requiring external memory.
- On-chip debug and programming support.
- Standard MCU peripherals include Brown-out Detect/Reset, Power-on Reset (POR), multiple PWM channels, and a Watchdog Timer (WDT).
This specific ATMEGA2560-16AUR variant operates at 16 MHz with a supply voltage of 4.5V to 5.5V, making it ideal for 5V logic systems. It comes in a surface-mount package and is rated for the industrial temperature range (-40°C to 85°C), ensuring reliability in demanding environments.
