TN1201 Datasheet, PDF (1/13 Pages) STMicroelectronics – To ease the development of STM32 microcontroller applications

TN1201
Technical note
Migrating from STM32L15/6xxD to STM32L15/6xVD-X
Introduction
To ease the development of STM32 microcontroller applications, it is important to be able to
smoothly replace one microcontroller type with another from the same product family. The
purpose of this technical note is to help users with the migration from an STM32L15/6xxD
(348KB Flash and 48KB RAM) device to an STM32L15/6xVD-X (384KB Flash and 80KB
RAM) device. This document includes the relevant information for users.
Prior to migrating an application, the users need to analyze the hardware migration, the
peripheral migration and the firmware migration. To better understand the information
included in this technical note, the users should be familiar with the STM32L1
microcontroller family.
For additional information, please refer to the STM32L100xx, STM32L151xx, STM32L152xx
and STM32L162xx advanced ARM^®-based 32-bit MCUs reference manual RM0038 in
which STM32L15/6xxD is ‘Cat.4’ device, STM32L15/6xVD-X is ‘Cat.5’ device, and to the
STM32L15/6xxD, STM32L15/6xVD-X datasheets. Documents are available for download
from the company website at www.st.com/stm32.
Table 1 lists the STM32 microcontrollers concerned by this technical note.
Type
Microcontrollers
Table 1. Applicable products
Part numbers
STM32L151QD, STM32L151RD, STM32L151VD, STM32L151ZD,
STM32L152QD, STM32L152RD, STM32L152VD, STM32L152ZD,
STM32L162QD, STM32L162RD, STM32L162VD, STM32L162ZD,
STM32L151VD-X, STM32L152VD-X, STM32L162VD-X
January 2015
DocID027299 Rev 1
1/13
www.st.com
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