December 2012

Doc ID 023129 Rev 1

1/16

AN4102

Application note

Introducing the low-power concept in automotive applications using

the STM8AL board of the STM8A-DISCOVERY

Introduction

This application note illustrates the power consumption benefits of the STM8AL devices

included with the STM8A-DISCOVERY. This new family of devices has been designed to

comply with AEC-Q100 rev G. automotive requirements and offer high performance with

ultra-low power management capabilities.

is used to demonstrate the efficiency of the low power modes of the STM8AL devices.

This application does not require any additional hardware or software. Once the STM8AL

board is powered-up through a USB cable connected to the host PC with the USER1 button

pressed, the user can access the low power software resources of the standard

demonstration package.

This low-power software example comes preloaded with your STM8A-DISCOVERY, but is

accessible when the USER1 or USER2 buttons are pressed during the board’s power

supply sequence.

Reference documents

●

STM8A-DISCOVERY user manual (UM1574).

●

Application note Power management in STM8L and STM8AL (AN3147).

The above documents are available from http://www.st.com.

Table 1.

Applicalble products

Type

Part numbers

Microcontrollers

STM8ALxxx

Evaluation tools

STM8A-DISCOVERY

www.st.com