STMicroelectronics STM32L431RCY6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.45 | $6.45 |
| 15+ | $4.24 | $63.60 |
| 25+ | $4.15 | $103.75 |
| 50+ | $3.92 | $196.00 |
| 100+ | $3.46 | $346.00 |
| N+ | $0.69 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 80MHz |
| Connectivity | CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Number of I/O | 52 |
| Program Memory Size | 256KB (256K 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 16x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-WLCSP (3.14x3.13) |
| Package / Case | 64-UFBGA, WLCSP |
| ROHS |
The STMicroelectronics STM32L431RCY6TR is a 32-bit microcontroller based on the ARM Cortex-M4 core. Operating at 80MHz, it provides high performance with low power consumption. It features 256KB of flash memory and 64KB of RAM, along with peripherals like DMA, PWM, and Brown-out Reset. The device operates from 1.71V to 3.6V and is available in a compact 64-UFBGA or WLCSP package, making it perfect for space-constrained and battery-powered applications.
- High Performance: 80MHz Cortex-M4 with FPU for advanced computations.
- Ultra-Low Power: Optimized for battery-powered devices with multiple low-power modes.
- Compact Package: WLCSP option minimizes PCB footprint.
- Large Memory: 256KB flash and 64KB RAM for complex applications.
Wearable Devices
The ultra-small WLCSP package and low power consumption make it ideal for smartwatches and fitness trackers.
Industrial Sensors
With 80MHz Cortex-M4 and 256KB flash, it can process complex sensor data for predictive maintenance.
Medical Monitoring
Its low voltage operation and DMA support enable continuous data logging in portable patient monitors.
Smart Home Hubs
The rich peripheral set and processing power allow it to manage multiple communication protocols in home automation.
Battery Management Systems
Precise ADC and PWM features support accurate cell monitoring and balancing in lithium-ion battery packs.
IoT Endpoints
With 64KB RAM and efficient DMA, it can handle MQTT and TLS for secure cloud connectivity.
- Q: What is the core processor?
- A: It uses an ARM Cortex-M4 core running at 80MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What package is this device in?
- A: It is available in a 64-UFBGA or WLCSP package.
- Q: Does it support DMA?
- A: Yes, it includes DMA, Brown-out Reset, PWM, and WDT.
- Q: What is the core processor?
- A: It uses an ARM Cortex-M4 core running at 80MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What package is this device in?
- A: It is available in a 64-UFBGA or WLCSP package.
- Q: Does it support DMA?
- A: Yes, it includes DMA, Brown-out Reset, PWM, and WDT.

STM32L431RCY6TR.pdf