AN4365 datasheet(1/35 Pages) STMICROELECTRONICS

Part #	AN4365

Description	Using STM32F4 MCU power modes with best dynamic efficiency

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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May 2014

DocID025303 Rev 2

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AN4365

Application note

Using STM32F4 MCU power modes with best dynamic efficiency

Introduction

Power consumption presents a major challenge for recent embedded applications.

This application note is split into two main parts:

•

The first part describes how to best configure the STM32F4 power modes and

measure the corresponding current consumptions specified in the datasheet.

•

The second part describes a use case that highlights the power efficiency of STM32F4

for the competitive applications of the embedded system market.

This application note is provided with the STSW-STM32142 firmware package that contains

two projects:

•

STM32F4_Current_Consumption_Measuring: gives a measuring application that can

be customized to measure the current consumption of different STM32F4 power

modes, and shows how to best configure the system for each mode.

•

STM32F4_Low_Power_Application_Case: this is an example of an application based

on the ADC, I2C and DMA peripherals using STM32F4 low-power modes and features.

For more details about these examples, please refer to the “readme” files inside this

firmware package.

Table 1. Applicable products and tools

Type

Part numbers

Microcontrollers

STM32F401 line

STM32F405/415 line

STM32F407/417 line

STM32F427/437 line

STM32F429/439 line

Firmware

STSW-STM32142

www.st.com

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