ATMEGA8U2-AU

The ATMEGA8U2-AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA8U2 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.

Note: These microcontrollers were found in back stock after we had removed them from any current build. We are offering them for a limited time at a severely reduced cost. We will not be stocking the ATMEGA8U2-AU once the current supply is gone.

  • 8K Bytes of In-System Programmable Flash with Read-While-Write capabilities
  • 512 Bytes EEPROM
  • 512 SRAM
  • 22 General Purpose I/O
  • 32 General Purpose Working Registers
  • 2 Flexible Timer/Counters with Compare Modes and PWM
  • 1 USART
  • Programmable Watchdog Timer with Internal Oscillator
  • SPI Serial Port
  • DebugWIRE interface
  • [Datasheet](https://cdn.sparkfun.com/datasheets/Components/General IC/ATMEGA8U2.pdf)

ATMEGA8U2-AU Product Help and Resources

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

3 Soldering

Skill Level: Competent - You will encounter surface mount components and basic SMD soldering techniques are required.
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Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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