STK521 User Guide

1-1

8194B–AVR–01/12

Section 1

Introduction

The STK521 board is a top module for the Atmel STK500 development board from Atmel Corporation. It

is designed to support the Atmel AT90PWM81, Atmel AT90PWM161 products and future compatible

derivatives.

The STK521 includes connectors and hardware allowing full utilization of the new features of the

AT90PWM81/161, while the Zero Insertion Force (ZIF) socket allows easy to use of SOIC20 package for

prototyping.

This user guide acts as a general getting started guide as well as a complete technical reference for

advanced users.

Note that in this guide, the word AVR is used to refer to the target components (AT90PWM81/161).

AT90PWM81 will be also used to refer to one of the products from this family.

Figure 1-1.

STK521 Top Module for STK500.