STMicroelectronics STM32G431CBY3TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.34 | $12.34 |
| 15+ | $2.83 | $42.45 |
| 25+ | $2.77 | $69.25 |
| 50+ | $2.62 | $131.00 |
| 100+ | $2.31 | $231.00 |
| N+ | $0.46 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32G4 |
| Packaging | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 170MHz |
| Connectivity | CANbus, I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| Number of I/O | 41 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 18x12b; D/A 4x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 49-WLCSP (3.15x3.13) |
| Package / Case | 49-UFBGA, WLCSP |
| ROHS |
The STM32G431CBY3TR is a high-performance mixed-signal MCU from STMicroelectronics, featuring a 170MHz ARM Cortex-M4 core with FPU. It provides 128KB flash and 32KB SRAM in a compact 49-ball WLCSP package. With advanced timers, fast ADCs, and I2S, it is optimized for digital power, motor control, and audio applications. The wide temperature range and low power modes support industrial and automotive use cases.
- 170MHz Cortex-M4 with FPU: Delivers real-time DSP performance for control loops.
- Compact WLCSP Package: Saves PCB area for miniaturized products.
- High-Temperature Rating (125°C): Reliable in demanding thermal environments.
- Advanced Analog Peripherals: Integrated op-amps and comparators reduce external components.
Motor Control Drives
The 170MHz Cortex-M4 with FPU enables high-frequency FOC algorithms for brushless DC motors, improving efficiency and torque ripple.
Digital Power Converters
High-speed PWM timers and 12-bit ADCs allow precise control of LLC or buck converters, achieving tight voltage regulation.
Industrial Sensors
With 32KB SRAM and DMA, it can buffer high-rate sensor data and process it locally, reducing host CPU load.
Automotive Body Electronics
The 125°C rating and robust peripherals make it suitable for under-hood modules like valve controllers or pump drivers.
Audio Interfaces
I2S support and DSP capabilities enable compact audio processing nodes for beamforming or echo cancellation.
Battery Management Systems
Multiple ADCs and comparators allow accurate cell voltage monitoring and protection logic in a small WLCSP package.
- Q: What is the core and maximum speed?
- A: It uses an ARM Cortex-M4 core running at up to 170MHz.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 125°C, suitable for harsh environments.
- Q: Does it support digital signal processing?
- A: Yes, the Cortex-M4 includes a floating-point unit (FPU) and DSP instructions.
- Q: What package is this variant?
- A: It comes in a 49-UFBGA (WLCSP) package for space-constrained designs.
- Q: What are the key integrated peripherals?
- A: It includes DMA, I2S, PWM, WDT, POR, and brown-out detection.
- Q: What is the core and maximum speed?
- A: It uses an ARM Cortex-M4 core running at up to 170MHz.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 125°C, suitable for harsh environments.
- Q: Does it support digital signal processing?
- A: Yes, the Cortex-M4 includes a floating-point unit (FPU) and DSP instructions.
- Q: What package is this variant?
- A: It comes in a 49-UFBGA (WLCSP) package for space-constrained designs.
- Q: What are the key integrated peripherals?
- A: It includes DMA, I2S, PWM, WDT, POR, and brown-out detection.

STM32G431CBY3TR.pdf