Migrating between STM32F334/303 lines and STM32G474xx/G431xx microcontrollers

PublishTime：2021-11-22

● Introduction:
For designers of STM32 microcontroller applications, the ability to easily replace one microcontroller type with another from the same product family is an important asset.
Migrating an application to a different microcontroller is often needed when product requirements grow, putting extra demands on memory size or increasing the number of I/Os. Cost reduction objectives may also be a reason to switch to smaller components and shrink the PCB area.
This application note analyses the steps required to migrate an existing design between STM32F303/F334 lines and STM32G474xx/G431xx microcontrollers. All the most important information is grouped here. Three aspects need to be considered for the migration: the hardware, peripheral(s) and firmware.
This document lists the full set of features available for STM32F303/F334 lines and the equivalent features on STM32G474xx/G431xx devices.
■STM32F3 reference manuals:
▲STM32F303xB/C/D/E, STM32F303x6/8, STM32F328x8, STM32F358xC, STM32F398xE advanced Arm®-basedMCUs (RM0316)
▲STM32F334xx advance Arm®-based 32-bit MCUs (RM0364)
■STM32F3 datasheets:
▲ STM32F303xB STM32F303xC datasheet
▲ STM32F303xD STM32F303xE datasheet
▲ STM32F303x6/x8 datasheet
■ STM32G4xx reference manuals:
▲ STM32G4xx advanced Arm®-based 32-bit MCUs (RM0440)
■ STM32G474xx/G431xx datasheet

Brand of Product：	ST
Part#：	STM32F334 、 STM32F303 、 STM32G474xx 、 STM32G431xx 、 STM32F3 、 STM32 、 STM32F303x6 、 STM32F303x8 、 STM32f328x8 、 STM32F358xC 、 STM32F398xE 、 STM32F334xx 、 STM32G4xx 、 STM32G474CB 、 STM32G474CC 、 STM32G474CE 、 STM32G474MB 、 STM32G474MC 、 STM32G474ME 、 STM32G474QB 、 STM32G474QC 、 STM32G474QE 、 STM32G474RB 、 STM32G474RC 、 STM32G474RE 、 STM32G474VB 、 STM32G474VC 、 STM32G474VE 、 STM32G431C6 、 STM32G431C8 、 STM32G431CB 、 STM32G431K6 、 STM32G431K8 、 STM32G431KB 、 STM32G431M6 、 STM32G431M8 、 STM32G431MB 、 STM32G431R6 、 STM32G431R8 、 STM32G431RB 、 STM32G431V6 、 STM32G431V8 、 STM32G431VB 、 STM32G474 、 STM32G431 、 STM32F303xB 、 STM32F303xC 、 STM32F303xD 、 STM32F303xE 、 STM32G474Cx 、 STM32G431Kx 、 STM32G431Cx More Part#
Product Category：	microcontroller More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	UFQFPN32;UFQFPN48;UFBGA64;UFBGA100;LQFP32;LQFP48;LQFP64;LQFP80;LQFP100;LQFP128;LQFP144;WLCSP49;WLCSP81;WLCSP100;TFBGA100
Language：	English Chinese Chinese and English Japanese
Date of Creation：	08-Jul-2020
Version Number：	Rev 3
Data Encoding：	AN5094
Data Size：	378 KB

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