STMicroelectronics STM32L431CBU6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.55 | $8.55 |
| 15+ | $1.97 | $29.55 |
| 25+ | $1.93 | $48.25 |
| 50+ | $1.82 | $91.00 |
| 100+ | $1.61 | $161.00 |
| N+ | $0.32 | 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 |
| 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; 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 STM32L431CBU6TR is an ultra-low-power ARM Cortex-M4 microcontroller from STMicroelectronics. It runs at 80MHz with 128KB flash and 64KB SRAM, operating from 1.71V to 3.6V. This 48-pin UFQFN device integrates advanced peripherals like DMA, PWM, and a brown-out detector, making it ideal for battery-operated and high-performance embedded applications.
- Ultra-Low Power Consumption: Multiple low-power modes (sleep, stop, standby) extend battery life in portable devices.
- High-Performance Cortex-M4: 80MHz with DSP instructions accelerates signal processing and control loops.
- Large Memory (128KB Flash / 64KB SRAM): Supports complex applications and data buffering without external memory.
- Rich Analog & Digital Peripherals: DMA, PWM, and 12-bit ADCs reduce CPU load and enable precise control.
Industrial Sensor Nodes
The 80MHz Cortex-M4 with DSP instructions handles complex sensor fusion algorithms while the low-power modes extend battery life in wireless transmitters.
Portable Medical Devices
Its 1.71V minimum supply and multiple low-power modes enable continuous glucose monitors and pulse oximeters to run for months on a coin cell.
Smart Home Hubs
With 128KB flash and 64KB RAM, it can run a lightweight RTOS and manage Zigbee/Thread protocol stacks for smart lighting and security systems.
Motor Control for Drones
The integrated PWM timers and DMA controllers allow precise, low-latency control of brushless DC motors in small quadcopters.
Data Loggers
Its 64KB SRAM can buffer sensor data before writing to external flash, while the brown-out detector ensures data integrity during power fluctuations.
Wearable Fitness Trackers
The small 48-UFQFN package and low-power RTC enable compact, energy-efficient step counting and heart-rate monitoring devices.
- Q: What is the core and maximum speed?
- A: It uses an ARM Cortex-M4 core running at up to 80MHz.
- Q: How much flash and RAM does it have?
- A: It provides 128KB of flash memory and 64KB of SRAM.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What package is this part?
- A: It comes in a 48-UFQFN exposed pad package.
STM32L431CBU6TR.pdf
- Q: What is the core and maximum speed?
- A: It uses an ARM Cortex-M4 core running at up to 80MHz.
- Q: How much flash and RAM does it have?
- A: It provides 128KB of flash memory and 64KB of SRAM.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What package is this part?
- A: It comes in a 48-UFQFN exposed pad package.
