STM32L43xxx/44xxx/45xxx/46xxx Reference Manual

About this manual

This document is a technical reference manual for the STM32L43xxx, STM32L44xxx, STM32L45xxx, and STM32L46xxx families of advanced ARM-based 32-bit microcontrollers. It targets application developers and provides complete information on how to use the microcontroller memory and peripherals.

The manual covers system architecture, memory organization, embedded SRAM and Flash memory, boot configuration, and various peripheral details including power control, reset and clock control, and general-purpose I/Os. It also includes documentation conventions, glossaries, and lists of abbreviations.

What's inside

• Documentation conventions
• System and memory overview
• Embedded Flash memory
• Firewall
• Power control
• Reset and clock control
• Clock recovery system
• General-purpose I/Os

Specifications

Frequently asked questions

What is the STM32L43xxx/44xxx/45xxx/46xxx microcontroller family based on?

The microcontroller family is based on the ARM Cortex-M4 core.

Who is the intended audience for this reference manual?

This manual targets application developers.

What information should users consult for mechanical and electrical device characteristics?

Users should refer to the corresponding datasheets for ordering information, mechanical and electrical device characteristics.