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Integrated Circuits (ICs)

STM32L431RBY6TR

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

The STMicroelectronics Ultra-low-power ARM Cortex-M4 MCU is a cutting-edge microcontroller designed for energy-efficient applications requiring high performance and advanced processing capabilities. Operating at a frequency of 80 MHz, this microcontroller features a robust ARM Cortex-M4 core architecture, making it ideal for a variety of embedded systems. With a compact WLCSP package and a wide operating temperature range from -40°C to 85°C, it is well-suited for both industrial and consumer app

BrandSTMicroelectronics
PackageWLCSP
Device TypeMicrocontrollers

Full Specifications

Core ArchitectureARM Cortex-M4
Number of I/Os52
Min Supply Voltage1.71V
Max Supply Voltage3.6V
Lifecycle StatusProduction
Frequency80MHz
Max Operating Temperature85°C
Min Operating Temperature-40°C
Nominal Supply Current10nA
Number of I2C Channels3
Number of SPI Channels3
Number of Timers/Counters1
PackagingTape & Reel
RAM Size64kB

About This Product

The STMicroelectronics Ultra-low-power ARM Cortex-M4 MCU is a cutting-edge microcontroller designed for energy-efficient applications requiring high performance and advanced processing capabilities. Operating at a frequency of 80 MHz, this microcontroller features a robust ARM Cortex-M4 core architecture, making it ideal for a variety of embedded systems. With a compact WLCSP package and a wide operating temperature range from -40°C to 85°C, it is well-suited for both industrial and consumer applications. Its ultra-low power consumption of just 10nA ensures longevity in battery-operated devices, while the integrated 128 Kbytes of Flash memory and 64 kB of RAM provide ample storage for complex applications.

What is this product used for?

Suitable for design, repair, and production programs using Microcontrollers devices.

Key Features

  • Case/Package: WLCSP
  • Number of Pins: 64
  • Lifecycle Status: Production
  • Core Architecture: ARM Cortex-M4
  • Number of I/Os: 52
  • Min Supply Voltage: 1.71V

Typical Use Cases

Embedded Processors and Controllers Microcontrollers WLCSP Microcontrollers

Sourcing Support for This MPN

Contact JaronSemi to confirm package, date code, and traceability requirements.

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  • Approved-alternate and cross-reference review when the requested line is constrained
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RFQ Checklist

Part number Confirm the target MPN or suggest approved alternates
Target Quantity Sample, pilot run, or mass production volume
Project stage Prototype, NPI, or ongoing production
Target price Budget or target price range if available
Ultra-low-power with FPU ARM Cortex-M4 MCU 80 MHz with 128 Kbytes Flash

STM32L431RBY6TR

STMicroelectronics

The STMicroelectronics Ultra-low-power ARM Cortex-M4 MCU is a cutting-edge microcontroller designed for energy-efficient applications requiring high performance and advanced processing capabilities. Operating at a frequency of 80 MHz, this microcontroller features a robust ARM Cortex-M4 core architecture, making it ideal for a variety of embedded systems. With a compact WLCSP package and a wide operating temperature range from -40°C to 85°C, it is well-suited for both industrial and consumer app

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  • Sample to production quantities
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