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.

Featured Videos
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STM32L451VC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 kbytes of Flash memory, DFSDM
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STM32L471RG
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, DFSDM
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STM32L451RC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 kbytes of Flash memory, DFSDM
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STM32L471VG
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, DFSDM
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STM32L471VE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 Kbytes of Flash memory, DFSDM
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STM32L451CC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 kbytes of Flash memory, DFSDM
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STM32L451VE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 kbytes of Flash memory, DFSDM
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STM32L471RE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 Kbytes of Flash memory, DFSDM
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STM32L431RC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory
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STM32L451RE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 kbytes of Flash memory, DFSDM
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STM32L471QG
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, DFSDM
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STM32L431CC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory
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STM32L431RB
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of Flash memory
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STM32L451CE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 kbytes of Flash memory, DFSDM
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STM32L471QE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 Kbytes of Flash memory, DFSDM
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STM32L471ZE
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 512 Kbytes of Flash memory, DFSDM
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STM32L431CB
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of Flash memory
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STM32L431KC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory
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STM32L471ZG
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, DFSDM
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STM32L431KB
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of Flash memory
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STM32L431VC
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory