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STM32L431KBU6TR The STMicroelectronics STM32L431KBU6TR is a 32-bit microcontroller featuring an ARM Cortex-M4 core. It offers 128KB of FLASH program memory and 64KB of RAM.
Mfr Part #:

STM32L431KBU6TR

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics STM32L431KBU6TR is a 32-bit microcontroller featuring an ARM Cortex-M4 core. It offers 128KB of FLASH program memory and 64KB of RAM.
✓ Total Stock: 13,000 pcs
$ Price Range: $6.40

STM32L431KBU6TR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
12,000 pcs
On Request
12000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

STM32L431KBU6TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
Frequency
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Supplier Package
Voltage
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STM32L431KBU6TR Description

Short technical summary and product information.

This STMicroelectronics STM32L431KBU6TR is a high-performance 32-bit microcontroller based on the ARM Cortex-M4 core, operating at speeds up to 80MHz. It is equipped with 128KB of FLASH program memory and 64KB of RAM, making it suitable for a wide range of embedded applications.

 

The microcontroller supports a broad operating voltage range of 1.71V to 3.6V and features internal peripherals such as DMA, PWM, and WDT. Connectivity options include CANbus, I2C, SPI, and UART/USART, among others. It also includes 10-bit A/D and 2-bit D/A converters.

 

The STM32L431KBU6TR is supplied in a compact 32-UFQFPN exposed pad package, designed for surface mounting. Its operating temperature range is -40°C to 85°C (TA). This component is RoHS3 compliant and has a Moisture Sensitivity Level of 1.

STM32L431KBU6TR Quick Information

Product Type: Microcontroller
Canonical Name: STM32L431KBU6TR Microcontroller
Subcategory: Microcontrollers

STM32L431KBU6TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

STM32L431KBU6TR Estimated Pricing

Qty Low High
1+ $6.40 $6.40

Estimated market price range - modelled values for guidance only, not live distributor offers.

STM32L431KBU6TR Features

  • 32-bit ARM Cortex-M4 core processor.
  • Operates at a maximum frequency of 80MHz.
  • 128KB FLASH program memory and 64KB RAM.
  • Wide operating voltage from 1.71V to 3.6V.
  • Surface mountable 32-UFQFPN package.

STM32L431KBU6TR Applications

  • Suitable for embedded control systems.
  • Ideal for applications requiring low power.
  • Used in devices with diverse connectivity needs.
  • Supports various data conversion requirements.

STM32L431KBU6TR FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the STM32L431KBU6TR?

The operating voltage range is 1.71V to 3.6V.

What package type is the STM32L431KBU6TR supplied in?

It is supplied in a 32-UFQFPN exposed pad package.

What is the operating temperature range for this microcontroller?

The operating temperature range is -40°C to 85°C (TA).

Is the STM32L431KBU6TR RoHS compliant?

Yes, it is RoHS3 compliant.

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