STMicroelectronics STM32L431KBU3TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $9.29 | $9.29 |
| 15+ | $2.13 | $31.95 |
| 25+ | $2.09 | $52.25 |
| 50+ | $1.97 | $98.50 |
| 100+ | $1.74 | $174.00 |
| N+ | $0.35 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 80MHz |
| Connectivity | CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Number of I/O | 26 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 64K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 10x12b SAR; D/A 2x12b |
| Oscillator Type | External, Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-UFQFPN (5x5) |
| Package / Case | 32-UFQFN Exposed Pad |
| ROHS |  |
The STM32L431KBU3TR is a 32-bit ARM Cortex-M4 microcontroller from STMicroelectronics, running at 80MHz with FPU. It offers 128KB flash and 64KB RAM, operating from 1.71V to 3.6V. Packaged in a 32-UFQFN with exposed pad, it includes DMA, PWM, WDT, and brown-out detection, designed for high-temperature industrial and automotive applications.
- ARM Cortex-M4 with FPU – efficient DSP and floating-point math.
- Wide temperature range (-40 to 125°C) – reliable in extreme conditions.
- Low voltage (1.71V) – supports energy harvesting and battery operation.
- 64KB RAM – ample buffering for real-time data processing.
Industrial IoT Edge Nodes
80MHz Cortex-M4 with FPU accelerates sensor fusion and ML inference while 125°C rating handles factory heat.
Automotive Body Electronics
Wide temp range and DMA support LIN/CAN gateways for window lift or mirror control.
Smart Grid Protection Relays
Fast 80MHz processing and 64KB RAM enable real-time waveform analysis for fault detection.
Portable Medical Wearables
1.71V operation and low-power modes extend battery life in continuous glucose monitors.
Robotics Motor Controllers
PWM and DMA handle multi-axis servo control with precise timing in compact 32-UFQFN.
Energy Harvesting Systems
Ultra-low voltage threshold (1.71V) allows operation from single-cell solar or TEG sources.
- Q: What is the core processor?
- A: ARM Cortex-M4 with FPU, running at 80MHz.
- Q: What is the supply voltage range?
- A: 1.71V to 3.6V, supporting low-power modes.
- Q: How much flash and RAM?
- A: 128KB flash and 64KB RAM.
- Q: What is the operating temperature?
- A: -40°C to 125°C, suitable for harsh environments.
- Q: What package is available?
- A: 32-UFQFN with exposed pad for thermal management.
STM32L431KBU3TR.pdf
- Q: What is the core processor?
- A: ARM Cortex-M4 with FPU, running at 80MHz.
- Q: What is the supply voltage range?
- A: 1.71V to 3.6V, supporting low-power modes.
- Q: How much flash and RAM?
- A: 128KB flash and 64KB RAM.
- Q: What is the operating temperature?
- A: -40°C to 125°C, suitable for harsh environments.
- Q: What package is available?
- A: 32-UFQFN with exposed pad for thermal management.
