STMicroelectronics STM32L431CBT6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.90 | $8.90 |
| 15+ | $2.04 | $30.60 |
| 25+ | $2.00 | $50.00 |
| 50+ | $1.89 | $94.50 |
| 100+ | $1.67 | $167.00 |
| N+ | $0.33 | 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, USB |
| 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-LQFP (7x7) |
| Package / Case | 48-LQFP |
| ROHS |
The STM32L431CBT6TR is a low-power ARM Cortex-M4 microcontroller from STMicroelectronics, operating at up to 80MHz. It provides 128KB of flash and 64KB of SRAM, with a supply range of 1.71V to 3.6V. This MCU integrates DMA, PWM, and brown-out detection, making it suitable for energy-efficient embedded systems.
- Ultra-low-power operation: 1.71V supply and multiple low-power modes extend battery life in portable devices.
- High performance: 80MHz Cortex-M4 core delivers efficient signal processing and control.
- Large memory: 128KB flash and 64KB SRAM support complex applications without external memory.
- Rich peripherals: DMA, PWM, and watchdog timers reduce CPU load and enhance system reliability.
Battery-Powered IoT Sensors
The 1.71V minimum supply and multiple low-power modes make it ideal for long-life environmental or industrial sensors.
Motor Control for Small Appliances
With an 80MHz Cortex-M4 and PWM timers, it can handle field-oriented control of BLDC motors in compact designs.
Portable Medical Devices
The 64KB SRAM supports buffering of biosignals, while the wide voltage range accommodates single-cell lithium batteries.
Smart Building Controllers
DMA and rich analog peripherals enable efficient data acquisition from temperature, humidity, and occupancy sensors.
Industrial Automation I/O Modules
Its robust brown-out detection and -40°C to 85°C range ensure reliable operation in factory floor environments.
Wearable Fitness Trackers
The small 48-LQFP footprint and low-power architecture extend battery life in space-constrained wearables.
- Q: What is the operating voltage range of the STM32L431CBT6TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M4 core runs at up to 80MHz.
- Q: How much flash memory does it have?
- A: It includes 128KB of flash and 64KB of SRAM.
- Q: What package is available?
- A: It comes in a 48-pin LQFP package.
- Q: Does it support PWM and DMA?
- A: Yes, it features PWM, DMA, and a watchdog timer.
- Q: What is the operating voltage range of the STM32L431CBT6TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M4 core runs at up to 80MHz.
- Q: How much flash memory does it have?
- A: It includes 128KB of flash and 64KB of SRAM.
- Q: What package is available?
- A: It comes in a 48-pin LQFP package.
- Q: Does it support PWM and DMA?
- A: Yes, it features PWM, DMA, and a watchdog timer.

STM32L431CBT6TR.pdf