AVR Introduction
Atmel offers both 8-bit and an 32-bit AVR®s. This guide covers 8-bit AVR microcontrollers.
AVR delivers unmatched flexibility. It combines the most code-efficient architecture for C and
assembly programming with the ability to tune system parameters throughout the entire life
cycle of your key products. Not only do you get to market faster, but once there, you can
easily and cost-effectively refine and improve your product offering.
The AVR architecture gives you 16-bit performance and leading low-power features
at 8-bit price.
It’s simple: AVR is the one architecture that works across the entire range of applications
you’re working on... or want to work on.

AVR Environment Friendly Package Options
Atmel is offering versions of its products that eliminate lead or lead and halide materials.
For AVR microcontrollers, all the lead free package options are RoHS compliant, lead free, halide free and fully green. All new parts will be offered in fully green packaging only.

AVR Product Range
Scalability
With an incredible variety of package and performance options, AVR gives you the versatility to meet any challenge and capture any opportunity. And both the instruction set and the architecture are the same for all AVR products. So when your code increases, you can easily and quickly port to a larger device.