AN4218 Datasheet, PDF (1/26 Pages) STMicroelectronics – Hardware design guideline

AN4218
Application note
Hardware design guideline
power supply and voltage measurement
Introduction
This document provides useful hints and suggestions about the implementation of the
STMicroelectronics 32-bit microcontroller devices in an automotive system. The main focus has been set
on the power supply concept and the connection to signals from different power domains.
Due to the harsh conditions in the automotive environment several precautions have to be taken into
account to ensure the robustness of the system. This is especially important when defining its power
supply concept.
This document shows test cases defined by car makers, which are intended to reproduce the system
behavior in the real automotive environment, it also shows good practices to cope with them as well as
bad practices and their influence on the system robustness.
September 2013
DocID024014 Rev 2
1/26
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