AN4617 Datasheet, PDF (1/26 Pages) STMicroelectronics – Migrating between STM32F0 and STM32L0 microcontrollers

AN4617
Application note
Migrating between STM32F0 and STM32L0 microcontrollers
Introduction
For designers of STM32 microcontroller applications, it is important to be able to easily
replace one microcontroller type with another one of the same product family.
Migration of an application to a different microcontroller is frequent, because of new product
requirements: this usually requires increase of memory density, and of the I/Os number.
I/Os. On the other hand, cost reduction objectives may force the switch to smaller
components, or shrink of the PCB area. Another important factor is the effort to decrease
overall power consumption, especially if application is sensitive to that topic.
This application note is written to help users to analyze the steps needed to migrate from a
STM32F0 microcontroller to one of the STM32L0 series and vice versa. It summarizes the
most relevant informations and lists the vital aspects to be addressed.
To migrate an application between the STM32F0 and the STM32L0 series, user must
carefully analyze the hardware migration, the peripheral migration and then the firmware
migration.
To benefit fully from the information contained in this application note, the user should be
familiar with the STM32 microcontroller family, for this we recommend to look at the
following documents that are available on www.st.com:
• the STM32F0 series reference manuals (RM0091 and RM0360) and STM32F0
datasheets;
• the STM32L0 series reference manuals (RM0367, RM0376 and RM0377) and STM32L0
datasheets.
For an overview of the whole STM32 series and a comparison of the different features of
each STM32 product series, please refer to AN3364 “Migration and compatibility guidelines
for STM32 microcontroller applications”.
Table 1 lists the products concerned by this application note.
Table 1. Applicable products
Type
Product series
Microcontrollers
STM32F0
STM32L0
February 2015
DocID027161 Rev 1
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www.st.com
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