2

7903A – AVR – 2006/02

Table of Contents

Introduction to Power Consumption of MCUs ........................................ 3

Why is Low Power Important? .......................................................................................3

Low Power Parameters ..................................................................................................3

Active versus Sleep........................................................................................................3

How to Lower Power Consumption in Sleep Mode ................................ 5

Leakage Current.............................................................................................................5

Active Peripherals ..........................................................................................................5

The 32 kHz Crystal Oscillator.........................................................................................6

Very Low-power Oscillators versus 32 kHz Oscillators..................................................6

The AVR picoPower Technology ............................................................. 6

Sleep Power Consumption Techniques Incorporated by picoPower Technology .........7

Active Mode Power Consumption Techniques Incorporated ..........................................

by picoPower Technology ..............................................................................................9

Conclusion....................................................................................................................15

Editor's Notes .......................................................................................... 16