STM32L431KBU3
- Mfr.Part #
- STM32L431KBU3
- Manufacturer
- STMicroelectronics
- Package / Case
- 32-UFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 32BIT 128KB FLSH 32UFQFPN
- Stock
- 4,902
- In Stock :
- 4,902
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- STMicroelectronics
- Product Category :
- Microcontrollers
- Peripherals :
- Brown-out Detect/Reset, DMA, PWM, WDT
- Operating Temperature :
- -40°C~125°C TA
- Data Converter :
- A/D 10x12b; D/A 2x12b
- Connectivity :
- CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART
- Program Memory Size :
- 128KB 128K x 8
- Supply Voltage-Max (Vsup) :
- 3.6V
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Speed :
- 80MHz
- Supply Voltage-Min (Vsup) :
- 1.8V
- Terminal Pitch :
- 0.5mm
- RoHS Status :
- RoHS Compliant
- Core Processor :
- ARM® Cortex®-M4
- RAM Size :
- 64K x 8
- Peak Reflow Temperature (Cel) :
- NOT SPECIFIED
- Mounting Type :
- Surface Mount
- Terminal Position :
- QUAD
- Series :
- STM32L4
- Oscillator Type :
- Internal
- Width :
- 5mm
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Surface Mount :
- yes
- Terminal Form :
- NO LEAD
- Factory Lead Time :
- 12 Weeks
- Program Memory Type :
- Flash
- Packaging :
- Tray
- DMA Channels :
- yes
- Clock Frequency :
- 48MHz
- Number of Terminations :
- 32
- Number of I/O :
- 26
- PWM Channels :
- yes
- Package / Case :
- 32-UFQFN Exposed Pad
- Bit Size :
- 32
- Core Size :
- 32-Bit
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Voltage - Supply (Vcc/Vdd) :
- 1.71V~3.6V
- Base Part Number :
- STM32L431
- Has ADC :
- yes
- Length :
- 5mm
- Supply Voltage :
- 3V
- Datasheets
- STM32L431KBU3

Microcontrollers STMicroelectronics STM32L431KBU3 Overview
The STM32L431KBU3, crafted by STMicroelectronics, stands out in the microcontroller market for its remarkable efficiency and adaptability. Designed to optimize both power consumption and performance, this microcontroller is equipped with an ARM Cortex-M4 core, boasting a 32-bit architecture that supports up to 80 MHz of clock speed. The integration of 128KB flash memory enhances its ability to handle complex algorithms and multitask efficiently, making it ideal for applications that require a balance between power efficiency and processing capability. The presence of a 32UFQFPN package ensures compactness and ease of integration in various designs, underpinning its appeal in sophisticated electronic assemblies.
STM32L431KBU3 Features
This microcontroller incorporates several features that make it a top choice for developers and engineers. Key features include its low power consumption, robust 32-bit ARM Cortex-M4 core, and substantial 128KB of flash memory. Additional functionalities such as multiple I/O ports, built-in analog-to-digital converters, and various power-saving modes further enrich its utility and flexibility, aligning perfectly with the demanding requirements of modern electronic environments.
STM32L431KBU3 Applications
- Wearable Devices: In wearable technology, the STM32L431KBU3 excels due to its low power consumption and small footprint, enabling prolonged battery life and compactness essential for smartwatches, fitness trackers, and health monitoring devices.
- Smart Home Automation: Utilized in smart home devices such as thermostats and lighting controls, the STM32L431KBU3's capabilities allow for responsive and energy-efficient operations, enhancing the smart home experience with reliable, continuous device communication.
- Industrial Control Systems: The robust processing power and memory capacity equip it for complex tasks in industrial applications, ensuring operational reliability and precision in machinery controls and automation systems.
- Medical Devices: Medical device manufacturers rely on the STM32L431KBU3 for its precision and power efficiency, crucial for portable medical devices like glucose monitors and blood pressure monitors, where reliability and accuracy are paramount.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















