STM32L4 series of ultra-low-power and performance MCUs

STM32L431, STM32L451 & STM32L471 devices extend the ultra-low-power portfolio and performance with an ARM® Cortex®-M4 core with DSP and floating-point unit (FPU) at 80 MHz.

  • The STM32L431 portfolio offers from 128 Kbytes to 256 Kbytes of Flash and from 32-to 100-pin packages. Its memory range can easily be extended using SDIO & Quad-SPI interfaces.
  • The STM32L451 portfolio offers from 256 Kbytes to 512 Kbytes of Flash and from 48-to 100-pin packages. Its memory range can easily be extended using SDIO & Quad-SPI interfaces.
  • The STM32L471 portfolio offers from 512 Kbytes to 1 Mbyte of Flash and from 64- to 144-pin packages. Its memory range can easily be extended using SDIO, Quad-SPI and FSMC interfaces.

Meet our new very budget-friendly, ultra-low-power STM32L4 MCUs

Offering a rationalized peripheral set, our two new ultra-low-power STM32L4 product lines provide a cost-optimized solution.

With up to 256 Kbyte of Flash memory, our new STM32L43x MCUs comprise variants with versatile combinations of an integrated USB controller and LCD controller, while STM32L44x MCUs also include an AES encryption hardware accelerator for security-conscious applications.

Developers will appreciate the new slim-form-factor NUCLEO-L432KC board – the first Nucleo-32 board integrating the new QFN32 package - and get direct access to ARM® mbed™ online tools.

Ideal for cost-sensitive applications, low-pin-count-package choices range from 32-pin QFN (5 x 5 mm) to 100-pin LQFP (14 x 14 mm) packages including WLCSP (3.14 x 3.13 mm).

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