STMicroelectronics STM32L431CBT6
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.65 | $4.65 |
| 15+ | $3.05 | $45.75 |
| 25+ | $2.99 | $74.75 |
| 50+ | $2.82 | $141.00 |
| 100+ | $2.49 | $249.00 |
| N+ | $0.50 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Tray | |
| 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 | 39 |
| 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 | 48-LQFP (7x7) |
| Package / Case | 48-LQFP |
| ROHS |
The STM32L431CBT6 is a low-power 32-bit ARM Cortex-M4 microcontroller from STMicroelectronics, running at 80MHz. It offers 128KB flash and 64KB RAM in a 48-LQFP package. Operating from 1.71V to 3.6V, it includes DMA, PWM, and WDT, making it ideal for energy-efficient and performance-demanding embedded applications.
- 80MHz Cortex-M4: delivers DSP-like performance for complex algorithms.
- Large 64KB RAM: supports multitasking and data buffering.
- Ultra-low voltage (1.71V): extends battery life in portable devices.
- 48-LQFP package: balances I/O count with board space.
IoT Edge Nodes
80MHz Cortex-M4 with 64KB RAM handles MQTT and sensor fusion while maintaining low power.
Industrial Automation
DMA and PWM enable precise control of actuators and data logging in PLCs.
Smart Meters
Low 1.71V operation and 128KB flash support complex metering algorithms in utility devices.
Medical Wearables
Efficient M4 core and small 48-LQFP package fit into compact health monitors.
Robotics Controllers
High-speed PWM and multiple timers allow servo control for hobby and educational robots.
Energy Harvesting Systems
Ultra-low voltage threshold enables operation from single-cell solar or TEG sources.
- Q: What is the core and speed?
- A: ARM Cortex-M4 at 80MHz.
- Q: What is the voltage range?
- A: 1.71V to 3.6V.
- Q: How much memory is available?
- A: 128KB flash and 64KB RAM.
- Q: What package is it?
- A: 48-LQFP.
- Q: Does it have DMA?
- A: Yes, includes DMA, PWM, and WDT.
- Q: What is the core and speed?
- A: ARM Cortex-M4 at 80MHz.
- Q: What is the voltage range?
- A: 1.71V to 3.6V.
- Q: How much memory is available?
- A: 128KB flash and 64KB RAM.
- Q: What package is it?
- A: 48-LQFP.
- Q: Does it have DMA?
- A: Yes, includes DMA, PWM, and WDT.

STM32L431CBT6.pdf