SparkFun
ATMEGA2560-16AUR AVR 8-bit Microcontroller
· MPN: COM-30157
The ATMEGA2560-16AUR is a high-performance, low-power 8-bit microcontroller based on the Microchip AVR enhanced RISC architecture. It is the controller IC us...
The ATMEGA2560-16AUR is a high-performance, low-power 8-bit microcontroller based on the Microchip AVR enhanced RISC architecture. It is the controller IC used at the heart of the Arduino Mega and many other advanced controller boards, making it a strong choice for complex embedded projects that need plenty of I/O and program space.
With instructions executed in a single clock cycle, the ATmega2560 achieves throughputs approaching 1 MIPS per MHz, helping balance processing speed and power consumption. Its large memory resources suit applications with bigger codebases, complex logic or multiple software libraries.
Connectivity is a major strength, with 86 general-purpose I/O lines and a broad peripheral set for sensors, actuators, displays, buttons and other components. This ATMEGA2560-16AUR variant is intended for 5V logic systems, comes in a surface-mount package and is rated for industrial temperature operation.
Features:
- High-performance, low-power 8-bit microcontroller based on the Microchip AVR enhanced RISC architecture.
- Powerful IC at the heart of the Arduino Mega and many other advanced controller boards.
- Ideal choice for complex projects that demand a massive amount of I/O and a large program memory.
- Executes powerful instructions in a single clock cycle.
- Achieves throughputs approaching 1 MIPS per MHz.
- Equipped with 256KB of Flash for program code.
- Equipped with 8KB of SRAM for runtime variables.
- Equipped with 4KB of EEPROM for non-volatile data storage.
- Provides 86 general-purpose I/O lines.
- 16-channel, 10-bit A/D converter for reading numerous analogue sensors.
- Communication interfaces include I2C, SPI and UART/USART.
- EBI/EMI (External Bus Interface) for applications requiring external memory.
- On-chip debug and programming support.
- Brown-out Detect/Reset support.
- Power-on Reset (POR) support.
- Multiple PWM channels.
- Watchdog Timer (WDT).
- Operates at 16 MHz.
- Supply voltage of 4.5V to 5.5V.
- Suitable for 5V logic systems.
- Surface-mount package.
- Rated for the industrial temperature range (-40°C to 85°C).
Specifications:
- Core Processor: AVR
- Core Size: 8-Bit
- Speed: 16MHz
- Connectivity: EBI/EMI, I2C, SPI, UART/USART
- Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O: 86
- Program Memory Size: 256KB (128K x 16)
- Program Memory Type: FLASH
- EEPROM Size: 4K x 8
- RAM Size: 8K x 8
- Voltage - Supply (Vcc/Vdd): 4.5V ~ 5.5V
- Data Converters: A/D 16x10b
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Mfg #: ATMEGA2560-16AUR
A useful bare microcontroller IC for designers building or repairing advanced AVR-based boards that need extensive I/O, multiple serial interfaces and large on-chip memory.
Jargon buster
Plain-language definitions for the technical terms used above.
- AVR
- AVR is a family of 8-bit microcontrollers used in many classic Arduino-style boards. If a USB host library mentions AVR support, it suggests the examples or compatibility may be aimed at those older microcontroller boards.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RAM
- RAM is temporary memory used while a device is running, and its contents are lost when power is removed. A “Run in RAM” mode is useful for testing settings without permanently programming the module, but it may not support every feature.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
Find this product in
ATmega640/2560 Datasheet
Datasheet · 4.7 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 595.9 KB · Click any page to view full size
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