STMicroelectronics STM32L431CBU6
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.52 | $5.52 |
| 15+ | $3.62 | $54.30 |
| 25+ | $3.55 | $88.75 |
| 50+ | $3.35 | $167.50 |
| 100+ | $2.96 | $296.00 |
| N+ | $0.59 | 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-UFQFPN (7x7) |
| Package / Case | 48-UFQFN Exposed Pad |
| ROHS |  |
The STM32L431CBU6 is a low-power ARM Cortex-M4 microcontroller from STMicroelectronics, operating at up to 80MHz. It provides 128KB flash and 64KB SRAM in a compact 48-UFQFN package. With a supply range of 1.71V to 3.6V and integrated brown-out reset, DMA, PWM, and watchdog timer, it is engineered for energy-efficient embedded control in industrial and consumer applications.
- Ultra-low power consumption: Optimized for battery life with multiple low-power modes and 1.71V operation.
- High performance: 80MHz Cortex-M4 with DSP instructions accelerates complex algorithms.
- Compact footprint: 48-UFQFN package saves PCB space for space-constrained designs.
- Robust reliability: Brown-out reset and watchdog timer ensure stable operation in harsh environments.
Battery-Powered IoT Sensors
The 1.71V minimum supply and multiple low-power modes make it ideal for long-life environmental or industrial sensors.
Portable Medical Devices
The 80MHz Cortex-M4 with DSP instructions handles real-time biosignal processing while maintaining low energy consumption.
Smart Home Controllers
With 128KB flash and rich peripherals like DMA and PWM, it can manage multiple communication protocols and actuator controls.
Industrial Data Loggers
The wide temperature range (-40°C to 85°C) and WDT ensure reliable operation in harsh environments for continuous data acquisition.
Wearable Fitness Trackers
Its compact 48-UFQFN package and low-voltage operation enable slim designs with efficient power management.
Precision Analog Measurement Systems
The integrated 12-bit ADC and stable internal reference support accurate sensor readings in test and measurement equipment.
- Q: What is the operating voltage range of the STM32L431CBU6?
- 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 and RAM does it have?
- A: It features 128KB flash and 64KB SRAM.
- Q: What package is available?
- A: It comes in a 48-UFQFN exposed pad package.
- Q: Does it include a brown-out reset?
- A: Yes, it has brown-out detect/reset, DMA, PWM, and WDT.
STM32L431CBU6.pdf
- Q: What is the operating voltage range of the STM32L431CBU6?
- 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 and RAM does it have?
- A: It features 128KB flash and 64KB SRAM.
- Q: What package is available?
- A: It comes in a 48-UFQFN exposed pad package.
- Q: Does it include a brown-out reset?
- A: Yes, it has brown-out detect/reset, DMA, PWM, and WDT.
