STMicroelectronics STM32L431CBY7TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.77 | $5.77 |
| 15+ | $3.79 | $56.85 |
| 25+ | $3.71 | $92.75 |
| 50+ | $3.50 | $175.00 |
| 100+ | $3.09 | $309.00 |
| N+ | $0.62 | 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, 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 ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 49-WLCSP (3.14x3.13) |
| Package / Case | 49-UFBGA, WLCSP |
| ROHS |  |
The STMicroelectronics STM32L431CBY7TR is a 32-bit ARM Cortex-M4 microcontroller with FPU, running at 80MHz. It provides 128KB Flash and 64KB RAM in a 49-pin UFBGA/WLCSP package. Operating from 1.71V to 3.6V and rated for -40°C to 105°C, it includes DMA, PWM, and WDT. This MCU is engineered for high-performance, high-temperature, and low-power applications.
- Cortex-M4 with FPU: Accelerates floating-point math for control and signal processing.
- 105°C operating range: Extends reliability in thermal-stress environments.
- Ultra-compact WLCSP: Minimizes board area for miniaturized designs.
- 1.71V operation: Supports energy harvesting and single-cell battery designs.
High-Temperature Industrial Sensors
The 105°C rating allows deployment near motors, engines, or furnaces where standard MCUs would fail.
Advanced Motor Control
The Cortex-M4 with FPU at 80MHz executes complex FOC and sensorless algorithms with floating-point precision.
Smart Grid Monitors
Wide temperature range and low power make it suitable for outdoor power line monitors and smart meters.
Medical Imaging Devices
High-speed DSP capabilities support signal processing in portable ultrasound or pulse oximetry systems.
Automotive Aftermarket
With 105°C operation, it can be used in engine bay sensors or cabin control modules.
Energy Harvesting Systems
The 1.71V minimum voltage allows operation from a single solar cell or TEG with minimal boost circuitry.
- Q: What core does the STM32L431CBY7TR use?
- A: It uses an ARM Cortex-M4 core with FPU running at 80MHz.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 105°C, suitable for harsh environments.
- Q: How much Flash and RAM are included?
- A: It has 128KB Flash and 64KB RAM.
- Q: What is the supply voltage?
- A: It operates from 1.71V to 3.6V.
- Q: What package is this device?
- A: It comes in a 49-pin UFBGA/WLCSP package.
STM32L431CBY7TR.pdf
- Q: What core does the STM32L431CBY7TR use?
- A: It uses an ARM Cortex-M4 core with FPU running at 80MHz.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 105°C, suitable for harsh environments.
- Q: How much Flash and RAM are included?
- A: It has 128KB Flash and 64KB RAM.
- Q: What is the supply voltage?
- A: It operates from 1.71V to 3.6V.
- Q: What package is this device?
- A: It comes in a 49-pin UFBGA/WLCSP package.
