STMicroelectronics STM32L431KBU6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.26 | $5.26 |
| 15+ | $3.46 | $51.90 |
| 25+ | $3.38 | $84.50 |
| 50+ | $3.20 | $160.00 |
| 100+ | $2.82 | $282.00 |
| N+ | $0.56 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-UFQFPN (5x5) |
| Package / Case | 32-UFQFN Exposed Pad |
| ROHS |
The STM32L431KBU6TR is an 80MHz ARM Cortex-M4 MCU with 128KB flash and 64KB RAM. It operates from 1.71V to 3.6V in a 32-UFQFN package. Features include DMA, PWM, and brown-out reset, ideal for low-power embedded applications.
- Ultra-low voltage (1.71V) enables battery operation.
- 80MHz Cortex-M4 for DSP-class performance.
- DMA offloads CPU for real-time tasks.
- Compact UFQFN package for space-constrained designs.
IoT Edge Nodes
Low power (1.71V) and DMA enable efficient sensor data aggregation.
Wearable Devices
UFQFN package saves space; 80MHz Cortex-M4 handles complex algorithms.
Smart Meters
128KB flash supports logging; PWM drives metering pulses.
Medical Monitors
Reliable brown-out detection ensures safe operation.
Portable Instruments
Low voltage operation extends battery life.
Motor Control
PWM and DMA allow smooth waveform generation.
- Q: What core does it use?
- A: ARM Cortex-M4.
- Q: What is the max clock speed?
- A: 80MHz.
- Q: How much flash and RAM?
- A: 128KB flash and 64KB RAM.
- Q: What is the voltage range?
- A: 1.71V to 3.6V.
- Q: What core does it use?
- A: ARM Cortex-M4.
- Q: What is the max clock speed?
- A: 80MHz.
- Q: How much flash and RAM?
- A: 128KB flash and 64KB RAM.
- Q: What is the voltage range?
- A: 1.71V to 3.6V.

STM32L431KBU6TR.pdf