STM32L431KB:Ultra-low-power with FPU ARM Cortex-M4 MCU 80 MHz with 128 Kbytes Flash

The STM32L431xx devices are the ultra-low-power microcontrollers based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L431xx devices embed high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L431xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.

The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.

In addition, up to 21 capacitive sensing channels are available.

They also feature standard and advanced communication interfaces.

Key Features

  • Ultra-low-power with FlexPowerControl
    • 1.71 V to 3.6 V power supply
    • -40 °C to 85/105/125 °C temperature range
    • 200 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
    • 8 nA Shutdown mode (5 wakeup pins)
    • 28 nA Standby mode (5 wakeup pins)
    • 280 nA Standby mode with RTC
    • 1.0 μA Stop 2 mode, 1.28 μA Stop 2 with RTC
    • 84 μA/MHz run mode
    • Batch acquisition mode (BAM)
    • 4 μs wakeup from Stop mode
    • Brown out reset (BOR) in all modes except shutdown
    • Interconnect matrix
  • Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS/1.25DMIPS/MHz (Dhrystone 2.1), and DSP instructions
  • Performance Benchmark
    • 1.25 DMIPS/MHz (Drystone 2.1)
    • 273.55 Coremark® (3.42 Coremark/MHz @ 80 MHz)
  • Energy Benchmark
    • 176.7 ULPBench® score
  • Clock Sources
    • 4 to 48 MHz crystal oscillator
    • 32 kHz crystal oscillator for RTC (LSE)
    • Internal 16 MHz factory-trimmed RC (±1%)
    • Internal low-power 32 kHz RC (±5%)
    • Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
    • Internal 48 MHz with clock recovery
    • 2 PLLs for system clock, audio, ADC
  • RTC with HW calendar, alarms and calibration
  • Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors
  • 11x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 2x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
  • Up to 83 fast I/Os, most 5 V-tolerant
  • Memories
    • Up to 256 KB single bank Flash, proprietary code readout protection
    • 64 KB of SRAM including 16 KB with hardware parity check
    • Quad SPI memory interface
  • Rich analog peripherals (independent supply)
    • 1× 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps
    • 2x 12-bit DAC, low-power sample and hold
    • 1x operational amplifier with built-in PGA
    • 2x ultra-low-power comparators
  • 15x communication interfaces
    • 1x SAI (serial audio interface)
    • 3x I2C FM+(1 Mbit/s), SMBus/PMBus
    • 4x USARTs (ISO 7816, LIN, IrDA, modem)
    • 3x SPIs (4x SPIs with the Quad SPI)
    • CAN (2.0B Active) and SDMMC interface
    • SWPMI single wire protocol master I/F
    • IRTIM (Infrared interface)
  • 14-channel DMA controller
  • True random number generator
  • CRC calculation unit, 96-bit unique ID
  • Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Product Specifications
DescriptionVersionSize
DS11453: Ultra-low-power ARM® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, analog, audio1.02 MB
Application Notes
DescriptionVersionSize
AN4629: ADC hardware oversampling for microcontrollers of the STM32 L0 and L4 series1.0321 KB
AN3126: Audio and waveform generation using the DAC in STM32 microcontrollers2.0829 KB
AN4775: Basics and low-cost solution proposals to move from legacy USB2.0 connector to USB Type-C™ connector with STM32 devices1.0443 KB
AN3154: CAN protocol used in the STM32 bootloader6.0630 KB
AN1709: EMC design guide for ST microcontrollers2.0843 KB
AN3960: ESD considerations for touch sensing applications on MCUs2.0353 KB
AN1181: Electrostatic discharge sensitivity measurement1.649 KB
AN4566: Extending the DAC performance of STM32 microcontrollers2.0365 KB
AN4776: General-purpose timer cookbook1.01 MB
AN4555: Getting started with STM32L4 Series hardware development3.0604 KB
AN4312: Guidelines for designing touch sensing applications with surface sensors2.01 MB
AN4299: Guidelines to improve conducted noise robustness on STM32F0/F3, STM32L0/L4 series touch sensing applications3.0613 KB
AN3236: Guidelines to increase the number of touch sensing touchkeys4.0300 KB
AN4750: Handling of soft errors in STM32 applications2.1410 KB
AN4803: High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs1.12 MB
AN4229: How to implement a vocoder solution using STM32 microcontrollers1.0466 KB
AN4221: I2C protocol used in the STM32 bootloader4.0681 KB
AN4777: Implications of memory interface configurations on low-power STM32 microcontrollers2.0435 KB
AN4838: Managing memory protection unit (MPU) in STM32 MCUs1.0284 KB
AN4809: Migrating between STM32L0 Series and STM32L4 Series microcontrollers1.0727 KB
AN4831: Migrating from STM32F2x5 line to STM32L4 Series microcontrollers1.0826 KB
AN4832: Migrating from STM32F303 line to STM32L4 Series microcontrollers1.0754 KB
AN4616: Migrating from STM32F401/411 lines to STM32L4 Series microcontrollers3.0684 KB
AN4821: Migrating from STM32F405/415 line and STM32F407/417 line to STM32L4 Series microcontrollers1.0716 KB
AN4612: Migrating from STM32L1 Series to STM32L4 Series microcontrollers3.0724 KB
AN4649: Migration of microcontroller applications from STM32F1 Series to STM32L4 Series3.0686 KB
AN4635: Minimization of power consumption using LPUART in microcontrollers of the STM32L0 and STM32L4 series3.21 MB
AN4746: Optimizing power and performances with STM32L4 series microcontrollers1.1571 KB
AN2867: Oscillator design guide for STM8S, STM8A and STM32 microcontrollers10.02 MB
AN4758: Proprietary code read-out protection on microcontrollers of the STM32L4 series1.21017 KB
AN4760: Quad-SPI (QSPI) interface on STM32 microcontrollers1.02 MB
AN4286: SPI protocol used in the STM32 bootloader3.0505 KB
AN4908: STM32 USART automatic baud rate detection1.0268 KB
AN4013: STM32 cross-series timer overview6.0555 KB
AN2606: STM32 microcontroller system memory boot mode29.03 MB
AN4230: STM32 microcontrollers random number generation validation using NIST statistical test suite2.0517 KB
AN4726: STM32Cube firmware examples for STM32L4 Series6.0466 KB
AN4729: STM32L0/L4 FIREWALL overview1.2114 KB
AN4621: STM32L4 ultra-low-power features overview1.1422 KB
AN4310: Sampling capacitor selection guide for MCU based touch sensing applications3.0208 KB
AN3156: USB DFU protocol used in the STM32 bootloader5.0376 KB
AN4277: Using STM32 device PWM shut-down features for motor control and digital power conversion4.0834 KB
AN4759: Using the hardware real-time clock (RTC) in low-power modes with STM32 microcontrollers2.01 MB
AN4655: Virtually increasing the number of serial communication peripherals in STM32 applications1.1338 KB
Technical Notes & Articles
DescriptionVersionSize
TN1163: Description of WLCSP for microcontrollers and recommendations for its use4.01 MB
TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions1.297 KB
TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages2.1745 KB
TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages3.0753 KB
TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages3.0830 KB
TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages1.0755 KB
TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages1.0743 KB
Reference Manuals
DescriptionVersionSize
RM0394: STM32L431xx STM32L433xx STM32L443xx advanced ARM®-based 32-bit MCUs2.024 MB
Programming Manuals
DescriptionVersionSize
PM0214: STM32F3, STM32F4 and STM32L4 Series Cortex®-M4 programming manual5.03 MB
Errata Sheets
DescriptionVersionSize
ES0320: STM32L431xx device limitations3.0371 KB
HW Model & CAD Libraries
DescriptionVersionSize
STM32L4 Boundary Scan Description Language (BSDL) files2.072 KB
STM32L4 CAD Symbol and Footprint files1.21 MB
STM32L4 IBIS models2.07 MB
Presentations
DescriptionVersionSize
STM32 Embedded Software overview2.3.0777 KB
STM32 and STM8 embedded software solutions2.02 MB
STM32L4 MCU series - Excellence in ultra-low-power with performance4.01 MB
Flyers
DescriptionVersionSize
Get ready for the largest IoT development ecosystem16.08721 KB
STM32 Nucleo boards16.12885 KB
STM32 for makers Releasing your creativity16.091 MB
STM32L4 Series - Ultra-low-power and performance16.07382 KB
Brochures
DescriptionVersionSize
STM32™ 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers16.021 MB
STM32L series - Ultra-low-power 32-bit MCUs16.033 MB
Magazine Articles
DescriptionVersionSize
Design & Elektronik magazine - Benchmark ULPBench debunked1.112 MB
Hardware Development Tools
Part NumberManufacturerDescription
ST-LINK/V2STST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
STM32-PRIMER/LABRaisonance complete EvoPrimer ready-to-use for STM32 standalone programmer & application monitor
STX-RLINKRaisonanceIn-circuit debugger/programmer for STM8, ST7, STM32, STR7 and STR9 microcontrollers
Software Development Tools
Part NumberManufacturerDescription
CoIDECooCoxCooCox CoIDE, a free and highly-integrated software development environment for ARM Cortex MCUs
CosmicIDECosmicCosmic ARM/Cortex "M" Cross Development Tools for STM32 Microcontroller
CrossWorksRowleyRowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug
DS-5ARMARM Development Studio 5 (DS-5) provides best-in-class tools for the broadest range of ARM processor-based platforms
EXP-TRACEExpressLogicExpress Logic TraceX Graphical finetuning tool
FLASHER-STM32STSTM32 Flash loader demonstrator (UM0462)
Hitop5HitexUniversal user interface, IDE and debugger for all Hitex development tools
IAR-EWARMIARIAR Integrated development environment and optimizing C/C++ compiler for ARM Cortex-M
MDK-ARM-STM32KeilMDK-ARM software development environment for Cortex-M based MCUs
MULTIGreenHills SoftwareGreenHills integrated development and debug environment for embedded applications using C and C++
PER-TracealyzerPercepioPercepio run-time trace analyser for STM32 MCU
PLSUDE-STM32PlsDebug and emulator platform with optimized Trace and Flash support for STM32 Cortex-M based MCU's by PLS development tools
RIDE-STM32RaisonanceRaisonance branded integrated development environment for STM32 MCUs
ST-MCU-FINDERSTM32 & STM8 product finder app for smartphone & tablet
STM-STUDIO-STM32STSTM Studio run-time variables monitoring and visualization tool for STM32 microcontrollers
STM32CubeMXSTSTM32Cube initialization code generator
STSW-STM32080STDfuSe USB device firmware upgrade STMicroelectronics extension: contains the demo GUI, debugging GUI, all sources files and the protocol layer (UM0412)
STSW-STM32095STSTM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation
STSW-STM32102STSTM32 Virtual COM Port Driver
STSW-STM32103STSTM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note.
STSW-STM32153STSTM32-BLE Toolbox for Android (AN4571)
STVP-LIB-STM32STSTVP programming toolkit: C++ source files for creating PC programming interface
STVP-STM32STST Visual Programmer STM32
SW4STM32AC6System Workbench for STM32: free IDE on Windows, Linux and OS X
TASKINGVX-STM32TASKINGAltium's C/C++ compiler and debugger tools for ARM based MCUs
TrueSTUDIOAtollicThe premier C/C++ development tool for STM32 development, with its unrivalled feature set and unprecedented integration
iSYS-winIDEAOpeniSYSTEMiSYSTEM's free unlimited software development platform for all STM32 Cortex-M based devices
mikroBasicPROMikroelectronikaMikroElektronika full-featured Basic compiler which makes STM32 development suitable for everyone
mikroCPROMikroelectronikaMikroElektronika full-featured ANSI C compiler for STM32 devices. It features an intuitive IDE, powerful compiler with advanced optimizations
mikroPascalPROMikroelectronikaMikroElektronika full-featured Pascal compiler for STM32 devices. It has an intuitive IDE with docking support, rich with features, advanced text editor, many available tools, libraries and examples
winIDEA-STM32iSYSTEMiSYSTEM's complete software development and test solution for the STM32 MCUs
MCUs Embedded Software
Part NumberManufacturerDescription
ALTIA-GUIAltia IncAltia DeepScreen for STM32: Graphical user interface (GUI)
CMX-CANopenCMX Systems IncCANopen Industrial Automation for STM32, from CMX Systems Inc
CMX-FFSCMX Systems IncFlash File System for STM32, from CMX Systems Inc
CMX-INetCMX Systems IncTCP/IP v4 or v6 stack for STM32, from CMX Systems Inc
CMX-MicroNetCMX Systems IncTCP/IP v4 with small footprint for STM32, from CMX Systems Inc
CMX-RTXCMX Systems IncReal Time OS for STM32, from CMX Systems Inc
CMX-TCP/IPCMX Systems IncTCP/IP v4 stack for STM32, from CMX Systems Inc
CMX-TinyCMX Systems IncReal Time OS with small footprint for STM32, from CMX Systems Inc
CMX-USBDeviceCMX Systems IncUSB Device stack for STM32, from CMX Systems Inc
CMX-USBHostCMX Systems IncUSB Host stack for STM32, from CMX Systems Inc
EXP-FILEExpressLogicExpress Logic FileX file system
EXP-RTOSExpressLogicExpress Logic ThreadX Real time operating system (RTOS)
EXP-TCPExpressLogicExpress Logic NetX and NetX Duo TCP/IP stacks
EXP-USBExpressLogicExpress Logic USBX USB stack
FREE-RTOSFreeRTOSFreeRTOS Real Time Operating System for STM32 ARM Cortex-M Microcontrollers families
HCC-BootloadersHCC EmbeddedStorage, USB or Serial Bootloader for STM32, from HCC Embedded
HCC-FFSHCC EmbeddedAll Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded
HCC-MISRA-TCP/IPHCC EmbeddedTCP/IP v4 or v6 stack for STM32, from HCC Embedded
HCC-USBHCC EmbeddedUSB Host & Device stacks for STM32, from HCC Embedded
I-CUBE-nRF51DRVSTSTM32Cube nRF51 Bluetooth Low Energy (BLE) embedded software
Men-Nucleus-SFMentor GraphicsNucleus SmartFit for STM32
ORYX-SSLOryx EmbeddedOryx CycloneSSL lightweight SSL/TLS implementation
ORYX-TCPOryx EmbeddedOryx CycloneTCP TCP/IP stack (IPv4, IPv6)
P&R-ProvenCoreProve & RunHigh security operating system from Prove & Run for STM32 ARM Cortex-M microcontrollers
PRT-CANopenPortPort CANopen Protocol Stack / Library for STM32
PRT-EtherCatPortPort EtherCAT Protocol Stack / Library for STM32
PRT-PowerlinkPortPort POWERLINK Protocol Stack / Library for STM32
PRT-ProfinetPortPort PROFINET Protocol Stack / Library for STM32
STM32-WMA/DECSTAudio Engine WMA Decoder and Utilities
STM32CubeL4STEmbedded software for STM32L4 series (HAL, Low Layer APIs and CMSIS drivers, USB, TouchSensing, File system, RTOS, Graphic - coming with examples running on ST boards: STM32 Nucleo, Discovery kits and Evaluation boards)
TAP-KNX-KAIStackTapkoKNX home automation for STM8 and STM32, from Tapko Technologies GMBH
WEI-KNXWeinzierlWeinzierl KNX standard communication protocols for the STM32 ARM Cortex-M Microcontrollers families (KNX Stack)
WITT-MWWittenstein High Integrity SystemsCONNECT Middleware: TCP/IP, USB and File System components from WITTENSTEIN high integrity systems
WITT-RTOSOPENRTOS: High Performance RTOS from WITTENSTEIN high integrity systems
WITT-RTOS-SAFESAFERTOS: The Safety Critical RTOS from WITTENSTEIN high integrity systems
X-CUBE-CRYPTOLIBSTSTM32 cryptographic firmware library software expansion for STM32Cube (UM1924)
X-CUBE-DBFUSTSTM32L0/L4 optimized usage of the dual bank structure of Flash memory (AN4767)
X-CUBE-DSPDEMOSTDigital Signal Processing with STM32, software expansion for STM32Cube (AN4841)
X-CUBE-FPUDEMOSTFloating point unit demonstration on STM32 microcontrollers, software expansion for STM32Cube (AN4044)
X-CUBE-IAP-USARTSTSTM32Cube in-application programming using the USART embedded software (AN4657)
X-CUBE-IRREMOTESTImplementing transmitters and receivers for infrared remote control protocols using STM32Cube (AN4834)
X-CUBE-LPTIMERSTLow-power timer (LPTIM) applicative use-cases on STM32 MCUs STM32Cube Expansion software
X-CUBE-LPUARTSTSTM32Cube embedded software demo of power consumption using LPUART (AN4635)
X-CUBE-PCROPSTProprietary code read-out protection (PCROP) software expansion for STM32Cube (AN4701 and AN4758)
X-CUBE-RC-CALIBSTSTM32L0 and STM32L4 calibration software expansion for STM32Cube (AN4631 and AN4736)
X-CUBE-RTCSTReal Time Clock (RTC) software expansion for STM32Cube (AN4759)
X-CUBE-SMBUSSTSTM32Cube SMBus/PMBus embedded software (AN4502)
X-CUBE-nRF51DRVSTSTM32Cube nRF51 Bluetooth Low Energy (BLE) embedded software
eCC-CANeCosCentricCANopen Industrial Automation for STM32, from eCosCentric
eCC-CEE-JeCosCentricEmbedded Java virtual machine for STM32, from eCosCentric
eCC-RedBooteCosCentricStandard bootstrap firmware for STM32, from eCosCentric
eCC-SecureShelleCosCentricSecure Shell daemon SSH-2 for STM32, from eCosCentric
eCC-USBeCosCentricUSB Host & Device stacks for STM32, from eCosCentric
eCC-YAFFSeCosCentricNAND Flash File System for STM32, from eCosCentric
eCC-eXtremeDBeCosCentricEmbedded in-memory database for STM32, from eCosCentric
emtas-CANopenEMTASCANopen Protocol Stack for STM32
Product Evaluation Tools
Part NumberManufacturerDescription
32L476GDISCOVERYSTDiscovery kit with STM32L476VG MCU
NUCLEO-L432KCSTSTM32 Nucleo-32 development board with STM32L432KC MCU, supports Arduino connectivity
NUCLEO-L476RGSTM32 Nucleo-64 development board with STM32L476RG MCU, supports Arduino and ST morpho connectivity
P-NUCLEO-LRWAN1Low-power wireless Nucleo pack with Nucleo-L073RZ and LoRa expansion board
STM32-PRIMERRaisonanceRaisonance complete Primer ready to use for easy evaluation and development with STM32 MCUs
STM32L476G-EVALEvaluation board with STM32L476ZG MCU
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STM32L431KBU6UFQFPN 32 5x5x0.55Tray-40852.04510000NEC3A991A2CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STM32L431KBU6UFQFPN 32 5x5x0.55IndustrialEcopack2
Ultra-low-power ARM® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 256KB Flash, 64KB SRAM, analog, audio STM32L431KB
ADC hardware oversampling for microcontrollers of the STM32 L0 and L4 series STM32L471ZE
使用 STM32 微控制器系列中的 DAC生成音频和波形 STM32L471ZE
Basics and low-cost solution proposals to move from legacy USB2.0 connector to USB Type-C™ connector with STM32 devices STM32L471ZE
STM32™ 自举程序中使用的 CAN 协议 STM32L431KB
EMC design guide for ST microcontrollers STM8L101G3
ESD considerations for touch sensing applications on MCUs STM8L101G3
Electrostatic discharge sensitivity measurement STM8L101G3
Extending the DAC performance of STM32 microcontrollers STM32L471ZE
General-purpose timer cookbook STM32L471ZE
Getting started with STM32L4 Series hardware development STM32L471ZE
Guidelines for designing touch sensing applications with surface sensors STM8L101G3
Guidelines to improve conducted noise robustness on STM32F0/F3, STM32L0/L4 series touch sensing applications STM32L471ZE
Guidelines to increase the number of touch sensing touchkeys STM8L101G3
Handling of soft errors in STM32 applications STM32L471ZE
High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs STM32L471ZE
How to implement a vocoder solution using STM32 microcontrollers STM32L471ZE
STM32 自举程序中使用的 I2C 协议 STM32L431KB
Implications of memory interface configurations on low-power STM32 microcontrollers STM32L471ZE
Managing memory protection unit (MPU) in STM32 MCUs STM32L471ZE
Migrating between STM32L0 Series and STM32L4 Series microcontrollers STM32L471ZE
Migrating from STM32F2x5 line to STM32L4 Series microcontrollers STM32L471ZE
Migrating from STM32F303 line to STM32L4 Series microcontrollers STM32L471ZE
从 STM32F401/411 系列移植到 STM32L4 系列微控制器 STM32L471ZE
Migrating from STM32F405/415 line and STM32F407/417 line to STM32L4 Series microcontrollers STM32L471ZE
Migrating from STM32L1 Series to STM32L4 Series microcontrollers STM32L471ZE
Migration of microcontroller applications from STM32F1 Series to STM32L4 Series STM32L471ZE
Minimization of power consumption using LPUART in microcontrollers of the STM32L0 and STM32L4 series X-CUBE-LPUART
利用 STM32L4 系列微控制器优化功耗和性能 STM32L471ZE
Oscillator design guide for STM8S, STM8A and STM32 microcontrollers STM32L471ZE
Proprietary code read-out protection on microcontrollers of the STM32L4 series X-CUBE-PCROP
Quad-SPI (QSPI) interface on STM32 microcontrollers STM32L471ZE
SPI 自举程序中使用的I2C 协议 STM32L431KB
STM32 USART automatic baud rate detection STM32L471ZE
STM32F1xx、STM32F2xx、STM32F4xx、STM32L1xx、STM32F30/31/37/38x 定时器概览 STM32L471ZE
STM32 microcontroller system memory boot mode STM32L431KB
STM32 microcontrollers random number generation validation using NIST statistical test suite STM32L471ZE
STM32Cube firmware examples for STM32L4 Series STM32CUBEL4
STM32L0/L4 FIREWALL overview STM32L471ZE
STM32L4 ultra-low-power features overview STM32L471ZE
Sampling capacitor selection guide for MCU based touch sensing applications STM8L101G3
USB DFU protocol used in the STM32 bootloader STM32L431KB
使用STM32F30x/31x PWM 刹车特性进行电机控制和数字电源转换功率因数校正 STM32L471ZE
Using the hardware real-time clock (RTC) in low-power modes with STM32 microcontrollers X-CUBE-RTC
Virtually increasing the number of serial communication peripherals in STM32 applications STM32L471ZE
Description of WLCSP for microcontrollers and recommendations for its use STM8L101G3
How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions STM32L152D-EVAL
Tape and reel shipping media for STM32 microcontrollers in BGA packages STM32L471ZE
Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages STM8L101G3
Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages STM8L101G3
Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages STM8L101G3
Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages STM8L101G3
STM32L431xx STM32L433xx STM32L443xx advanced ARM®-based 32-bit MCUs STM32L431KB
STM32F3, STM32F4 and STM32L4 Series Cortex®-M4 programming manual STM32L471ZE
STM32L431xx device limitations STM32L431KB
STM32L471xx device limitations STM32L471ZE
STM32L471xx device limitations STM32L471ZE
STM32L471xx device limitations STM32L471ZE
STM32CubeL1 Nucleo demonstration firmware STM32CUBEL1
STM8L101xx device limitations STM8L101G3
STM32CubeL4 demonstration firmware for STM32L476G-EVAL board STM32CUBEL4
STM32 LoRa® software expansion for STM32Cube I-CUBE-LRWAN
STM32L471xx device limitations STM32L471ZE
STM32 Nucleo Packs - Motor Control FOC and 6-step solutions for three-phase, low-voltage and low-current motors P-NUCLEO-IHM002
STM32CubeL4 demonstration firmware for STM32L476G-EVAL board STM32CUBEL4
STM32L1xx standard peripherals library STSW-STM32077
STM32CubeL1 Nucleo demonstration firmware STM32CUBEL1
STM32L471xx device limitations STM32L471ZE