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STMicroelectronics STM32G431RBT6TR
- Part No.:
- STM32G431RBT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G431RBT6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,096
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Product details
Overview
STM32G431RBT6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 128 KB Flash with ECC, 32 KB SRAM (22 KB + 10 KB CCM), and integrated analog peripherals including dual 12-bit DACs (2 buffered @ 1 MSPS), dual 12-bit ADCs (0.25 µs conversion), 4 rail-to-rail comparators, and 3 operational amplifiers - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G431RBT6TR datasheet, STM32G431RBT6TR pinout, STM32G431RBT6TR application, or STM32G431RBT6TR equivalent, key selection criteria include its FDCAN interface for automotive-grade communication, CORDIC/FMAC hardware accelerators for real-time math, 5 V-tolerant I/Os, and UCPD support for USB Type-C™ power delivery control.
Technical Context
The STM32G431RBT6TR implements a dual-bank Flash architecture with PCROP and securable memory zones, paired with an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution at 170 MHz. Its interconnect matrix routes 14 timers-including two 16-bit advanced motor control timers with dead-time generation and emergency stop-across multiple bus domains.
It integrates FDCAN supporting flexible data-rate (up to 5 Mbps), USB 2.0 full-speed with LPM/BCD, and UCPD for USB Power Delivery negotiation. Analog subsystem includes VREFBUF (2.048 V / 2.5 V / 2.9 V outputs), temperature sensor, and VBAT monitoring - all operating across 1.71–3.6 V supply range with programmable voltage detector (PVD) and multiple low-power modes (Stop 0/1, Standby, Shutdown).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling floating-point math and signal processing without software emulation. |
| Max Clock Frequency | 170 MHz with 213 DMIPS performance, sustained via ART Accelerator for deterministic real-time response. |
| Flash Memory | 128 KB with ECC protection and PCROP, ensuring code integrity and secure firmware partitioning. |
| SRAM | 32 KB total: 22 KB general-purpose + 10 KB CCM SRAM on instruction/data bus with parity check. |
| Analog Peripherals | Dual 12-bit ADCs (23-channel, 0.25 µs), 4x comparators, 3x op-amps (PGA mode), 4x DAC channels (2 buffered external @ 1 MSPS). |
| Communication Interfaces | FDCAN (flexible data-rate), 4x USART/UART, 3x I²C (Fast Mode Plus), 3x SPI, USB FS, SAI, LPUART, UCPD, and IRTIM. |
| Math Accelerators | CORDIC for trigonometric functions and FMAC for FIR/IIR filter computation - offloading CPU in motor control and power conversion. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | 1.71–3.6 V operation; separate analog domain enables noise-sensitive ADC/DAC accuracy. |
| VSS, VSSA | Ground reference | Dedicated analog ground pins reduce coupling noise into precision analog circuits. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/Os | Up to 51 fast GPIOs; many support 5 V tolerance, EXTI, and multiple alternate functions (e.g., TIM, ADC, SPI). |
| NRST | Reset input | Active-low reset with internal pull-up; supports external reset source or debugger-initiated reset. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, embedded Flash, or SRAM) at power-on reset. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins with internal pull-ups; no external PHY required. |
| PA15/PB3/PB4 | JTAG/SWD debug | Supports Serial Wire Debug (SWD) and JTAG; SWD requires only SWCLK/SWDIO/NRST for minimal footprint debugging. |
Key Features
| Feature | Design Value |
|---|---|
| FDCAN Controller | Enables ISO 11898-1 compliant CAN FD communication up to 5 Mbps, supporting automotive diagnostics and high-bandwidth control loops. |
| CORDIC + FMAC | Hardware-accelerated sine/cosine/arctan and filter math reduces CPU load by >70% in PMSM FOC and digital power control algorithms. |
| UCPD Interface | Integrated USB Type-C™ Power Delivery controller handles CC logic, VCONN switching, and PD message parsing without external IC. |
| Advanced Timers (TIM1/TIM8) | Two 16-bit advanced motor control timers with 8 PWM channels, complementary outputs, dead-time insertion, and emergency shutdown input. |
| VREFBUF | Programmable internal voltage reference (2.048 V / 2.5 V / 2.9 V) eliminates need for external precision reference in ADC/DAC calibration paths. |
Applications
| Motor Control System | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC blowers and industrial drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 6-channel PWM with synchronized ADC sampling and dead-time management. Use Value: CORDIC/FMAC accelerators enable sub-1 µs vector rotation and current-loop filtering, achieving <5 µs total control loop latency. | Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Digital power controller managing PWM generation, voltage/current sensing, thermal monitoring, and communication via FDCAN or UART. Use Value: Dual 12-bit ADCs sample primary/secondary side signals simultaneously; 4x comparators provide cycle-by-cycle overcurrent protection with <100 ns response. |
| Industrial Sensor Hub | USB-C Power Delivery Adapter |
Use Scenario: Multi-sensor node aggregating temperature, pressure, and vibration data for predictive maintenance gateways. IC Role / Device Role / Timing Role: Edge-processing MCU acquiring analog/digital sensor inputs, running local FFT/peak detection, and transmitting via LPUART or USB. Use Value: Integrated op-amps condition piezoelectric/voltage-output sensors; 32 KB SRAM buffers time-series data before compression and transmission. | Use Scenario: Compact USB-C wall adapter negotiating 20 V / 5 A power delivery with legacy device compatibility. IC Role / Device Role / Timing Role: UCPD controller managing CC line state, PD messaging, VBUS control, and safety-critical fault handling per USB PD 3.0 spec. Use Value: On-chip UCPD peripheral eliminates external PD controller IC, reducing BOM count and PCB area while maintaining full compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | Higher Flash (512 KB), larger SRAM (128 KB), additional crypto accelerators (AES, HASH, PKA), no UCPD. | Suitable for complex firmware with OTA updates and secure boot; lacks USB-C PD control capability. | Select when security, storage, or cryptographic features outweigh UCPD requirement. |
| STM32F303RET6 | Cortex-M4 core without FPU, lower max frequency (72 MHz), no CORDIC/FMAC, no UCPD or FDCAN. | Targeted at cost-sensitive motor control where advanced math acceleration and modern interfaces are unnecessary. | Choose only if legacy F3 toolchain compatibility and reduced feature set align with design constraints. |
Compared with STM32G474RET6, the STM32G431RBT6TR trades Flash/SRAM capacity and crypto for UCPD and FDCAN - making it optimal for USB-C PD adapters and automotive-adjacent control nodes. Against STM32F303RET6, it delivers 2.4× higher compute throughput, hardware math acceleration, and modern interface support at modest cost premium.
Availability
STM32G431RBT6TR is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor hubs, and USB-C power delivery adapters requiring stable component supply and long-term industrial lifecycle support.
Supply support for STM32G431RBT6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, resource-constrained embedded applications demanding real-time analog integration, mathematical acceleration, and modern connectivity - especially in digital power, motor control, and USB-C ecosystems.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32G431RBT6TR achieves 170 MHz using its Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator, which enables zero-wait-state execution from Flash memory. This is validated across the full industrial temperature range (–40°C to +85°C) with 1.71–3.6 V supply, delivering 213 DMIPS performance without external clock multipliers.
Does this MCU support USB Type-C™ Power Delivery?
Yes - the STM32G431RBT6TR integrates a dedicated USB Type-C™ / USB Power Delivery (UCPD) controller compliant with USB PD 3.0 specification. It handles CC line monitoring, VCONN switching, PD message parsing, and safety-critical fault responses entirely on-die, eliminating need for external PD controllers in compact adapters and docks.
How many analog-to-digital converters does it have and what are their key specs?
It includes two independent 12-bit ADCs with up to 23 input channels, 0.25 µs conversion time, hardware oversampling (up to 16×), and 0–3.6 V input range. Both support simultaneous sampling triggered by timers or external events, and feature built-in temperature sensor and VREFINT calibration for high-accuracy measurements in motor current sensing and power monitoring.
What packaging and thermal specifications apply to the RBT6TR variant?
The STM32G431RBT6TR uses an LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad. It is rated for industrial temperature range (–40°C to +85°C), with θJA = 40 °C/W and θJC = 10 °C/W (top). The package supports reflow soldering per JEDEC J-STD-020 and is RoHS-compliant with halogen-free molding compound.
STM32G431RBT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32G4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 52
- 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 23x12b SAR; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G431RBT6TR FAQ
1.How can I place an order for STM32G431RBT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G431RBT6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G431RBT6TR reliable?
The price and inventory of STM32G431RBT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G431RBT6TR is usually 5 days.
3.What payment methods are accepted for STM32G431RBT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G431RBT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G431RBT6TR?
STM32G431RBT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G431RBT6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G431RBT6TR?
For technical support, including STM32G431RBT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G431RBT6TR requirements.
6.How does Aetrix verify that STM32G431RBT6TR is sourced from the original manufacturer or authorized distributors?
All STM32G431RBT6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G431RBT6TR meets industry standards.
7.What is the process for return or replacement of STM32G431RBT6TR?
All STM32G431RBT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G431RBT6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G431RBT6TR part is unused and in its original packaging.
Return procedure for STM32G431RBT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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