STMicroelectronics STM32L431CBT3TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $10.19 | $10.19 |
| 15+ | $2.35 | $35.25 |
| 25+ | $2.30 | $57.50 |
| 50+ | $2.17 | $108.50 |
| 100+ | $1.91 | $191.00 |
| N+ | $0.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M4F |
| 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 | 38 |
| 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 | 48-LQFP (7x7) |
| Package / Case | 48-LQFP |
| ROHS |  |
The STM32L431CBT3TR from STMicroelectronics is a low-power ARM Cortex-M4F microcontroller balancing performance and efficiency. It delivers 80MHz processing with 128KB flash and 64KB SRAM in a compact 48-LQFP package. Operating from 1.71V to 3.6V, it includes DMA, PWM, and watchdog timers for reliable embedded control. Its -40°C to 125°C range suits demanding industrial and automotive environments.
- Ultra-low-power architecture: 1.71V operation and multiple sleep modes extend battery life in portable designs.
- High-performance DSP: Cortex-M4F with FPU accelerates math-intensive tasks like audio and motor control.
- Robust temperature range: -40°C to 125°C ensures reliability in harsh industrial settings.
- Ample memory: 128KB flash and 64KB SRAM support complex applications without external memory.
Industrial Sensor Nodes
The 80MHz Cortex-M4F with DSP instructions enables real-time sensor fusion and edge processing in factory automation, reducing host MCU load.
Battery-Powered IoT Devices
With a 1.71V minimum supply and multiple low-power modes, it extends battery life in wireless environmental monitors and trackers.
Motor Control Systems
Integrated PWM timers and DMA support field-oriented control for brushless DC motors in power tools and robotics.
Portable Medical Instruments
The 125°C rating and 64KB SRAM allow reliable operation in handheld diagnostic devices requiring fast data logging.
Smart Building Controllers
Its rich analog peripherals and 128KB flash handle HVAC scheduling and lighting control with local decision-making.
Automotive Aftermarket Modules
The wide temperature range and brown-out detection make it suitable for engine-adjacent telematics or body control modules.
- Q: What is the operating voltage range of the STM32L431CBT3TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum core speed?
- A: The ARM Cortex-M4F core runs at up to 80MHz.
- Q: How much flash and RAM does it have?
- A: It provides 128KB flash and 64KB SRAM.
- Q: What package is available?
- A: It comes in a 48-LQFP package.
- Q: What is the temperature range?
- A: It is rated for -40°C to 125°C.
STM32L431CBT3TR.pdf
- Q: What is the operating voltage range of the STM32L431CBT3TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum core speed?
- A: The ARM Cortex-M4F core runs at up to 80MHz.
- Q: How much flash and RAM does it have?
- A: It provides 128KB flash and 64KB SRAM.
- Q: What package is available?
- A: It comes in a 48-LQFP package.
- Q: What is the temperature range?
- A: It is rated for -40°C to 125°C.
