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STM32L4 Series

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STM32L4 series of ultra-low-power MCUs

ST has built a new architecture to reach best-in-class ultra-low-power figures thanks to its high flexibility. STM32L4 MCUs have scored 447 ULPMark-CP and 167 ULPMark-PP in the standardized EEMBCâ„¢ ULPMark® tests that compare the efficiency of ultra-low-power microcontrollers. Moreover, the STM32L4 series shatters performance limits in the ultra-low-power world. It delivers 100 DMIPS based on its Arm® Cortex®-M4 core with FPU and ST ART Acceleratorâ„¢ at 80 MHz.

STM32L4 microcontrollers offer dynamic voltage scaling to balance power consumption with processing demand, low-power peripherals (LP UART, LP timers) available in Stop mode, safety and security features, smart and numerous peripherals, advanced and low-power analog peripherals such as op amps, comparators, LCD, 12-bit DACs and 16-bit ADCs (hardware oversampling).

The series are available in different lines: STM32L4x1 (Access line), STM32L4x2 (USB Device), STM32L4x3 (USB Device, LCD), STM32L4x5 (USB OTG) and STM32L4x6 (USB OTG, LCD).

To simplify migration and give you all the flexibility you need, the STM32L4 is pin-to-pin compatible with the different STM32 series and opens the door to the full STM32 ecosystem.

  • Ultra-low-power mode: 8 nA with backup registers without real-time clock (5 wakeup pins)
  • Ultra-low-power mode + RTC: 200 nA with backup registers (5 wakeup pins)
  • Ultra-low-power mode + 8 Kbytes of RAM: 195 nA
  • Ultra-low-power mode + 8 Kbytes of RAM + RTC: 340 nA
  • Dynamic run mode: down to 28 μA/MHz
  • Wake-up time: 5 μs

Featured Videos

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MadeForSTM32â„¢ - the new STM32 quality label
MadeForSTM32â„¢ - the new STM32 quality label

MadeForSTM32â„¢ is a new quality label delivered by ST, which is granted after an evaluation process. It helps engineers identify third party solutions with the highest level of integration and quality for the STM32 microcontrollers' ecosystem. MadeForSTM32â„¢ is offered to members of the ST Partner Program who want to go one step further in our collaboration, with the overall objective of contributing to a high-quality STM32 ecosystem.

Artificial Neural Network mapping made simple with the STM32Cube.AI
Artificial Neural Network mapping made simple with the STM32Cube.AI

The STM32Cube.AI is an extension pack of the widely used STM32CubeMX configuration and code generation tool enabling AI on STM32 Arm® Cortex®-M-based microcontrollers.

Product overview - STM32L4: Excellence in ultra-low-power with performance (ePresentation)
Product overview - STM32L4: Excellence in ultra-low-power with performance (ePresentation)

ST has built a new architecture to reach best-in-class ultra-low-power figures thanks to its high flexibility. STM32L4 MCUs have scored 447 ULPMark-CP and 167 ULPMark-PP in the standardized EEMBC™ ULPMark® tests that compare the efficiency of ultra-low-power microcontrollers. Moreover, the STM32L4 series shatters performance limits in the ultra-low-power world. It delivers 100 DMIPS based on its Arm® Cortex®-M4 core with FPU and ST ART Accelerator™ at 80 MHz.

Featured Products

Revolutionize your user experience using STM32 GUI solutions

Getting started with STM32L4

X-CUBE-SBSFU

Secure boot & secure firmware update software expansion for STM32Cube

STM32L4 Online Training

Getting started with STM32L4

  • Purchase a 32-pin, 64-pin or 144-pin Nucleo board, Discovery kit or Evaluation kit for STM32L4 MCUs. 

  • Download the STM32CubeL4 embedded software package containing the HAL, LL (low-layer) APIs, and middleware. Then install ST’s STM32CubeMX graphical software configuration tool that supports pinout configuration, code generation and a power consumption calculator. Start with one of the many examples provided or build your own project.

  • Get trained watching the STM32L4 Online Training

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