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STMicroelectronics STM32G431R6T6
- Part No.:
- STM32G431R6T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G431R6T6.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,252
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Product details
Overview
STM32G431R6T6 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 (1 MSPS buffered), dual 16-bit ADCs (0.25 µs conversion), 3 op-amps, 4 comparators, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensor processing.
For engineers reviewing the STM32G431R6T6 datasheet, STM32G431R6T6 pinout, STM32G431R6T6 application, or STM32G431R6T6 equivalent, key selection criteria include its LQFP64 package with 51 GPIOs (22 5V-tolerant), FDCAN support for flexible data-rate automotive/industrial networks, UCPD interface for USB Type-C™ power delivery, and hardware-accelerated trigonometric and filtering operations critical for real-time closed-loop control.
Technical Context
The STM32G431R6T6 implements a tightly coupled ART Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a multi-AHB interconnect matrix for concurrent peripheral access. Its dual 16-bit advanced motor control timers (TIM1/TIM8) deliver 8-channel PWM with programmable dead time and emergency stop - essential for three-phase inverter gate driving.
Analog subsystem integration includes three rail-to-rail op-amps configurable as programmable-gain amplifiers (PGA), two buffered 12-bit DAC outputs (1 MSPS), and a dedicated internal voltage reference buffer (VREFBUF) supporting 2.048 V / 2.5 V / 2.9 V outputs - enabling high-precision sensor signal conditioning without external references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling floating-point math and complex control algorithms in real time. |
| Max Clock Frequency | 170 MHz (213 DMIPS), sustained via ART Accelerator - eliminates Flash wait states for deterministic timing-critical code. |
| Memory | 128 KB Flash with ECC and PCROP; 22 KB SRAM + 10 KB CCM-SRAM with parity - supports secure firmware storage and safety-critical data buffers. |
| Analog Peripherals | Dual 16-bit ADCs (23 channels, 0.25 µs), 4x 12-bit DACs (2 buffered @ 1 MSPS), 3 op-amps (PGA mode), 4 comparators - enables full analog front-end integration for closed-loop systems. |
| Communication | FDCAN (flexible data rate), 4x USART, 3x I²C (Fast Mode Plus), 3x SPI, USB 2.0 FS, UCPD - supports mixed-speed industrial networking and USB-C power negotiation. |
| Math Acceleration | CORDIC (trigonometric/hyperbolic functions) and FMAC (filtering) co-processors - offload CPU for motor control, digital power, and sensor fusion workloads. |
| Package & Pins | LQFP64 (10 × 10 mm), 51 general-purpose I/Os with 22 5V-tolerant pins - suitable for compact industrial PCBs requiring robust level-shifting capability. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40 °C to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog domain ensures clean ADC/DAC reference stability. |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling between digital switching and precision analog circuits. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE2 | General-purpose I/O | 51 GPIOs mapped to 14 timers, 4 ADCs, 4 DACs, and multiple communication peripherals - enables full peripheral remapping for board layout optimization. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external push-button or supervisor IC assertion. |
| BOOT0 | Boot mode selection | High at power-on selects system memory bootloader; used for field firmware recovery via USART. |
| PA9/PA10, PB6/PB7 | USART1 TX/RX, I²C1 SCL/SDA | Dual-function pins support debug console or SMBus communication without additional routing layers. |
| PA11/PA12 | USB DP/DM | Full-speed USB 2.0 physical layer with built-in transceivers - eliminates need for external PHY in cost-sensitive designs. |
| PA15, PB3–PB5 | JTAG/SWD debug | SWDIO/SWCLK/NRST pins enable standard ARM debugging; JTAG optional via remapping. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware computation of sin/cos/tan/atan/sqrt/log/exp - reduces motor FOC angle calculation latency by >90% vs. software. |
| FMAC filter engine | Configurable FIR/IIR filtering with 32-bit accumulator - enables real-time current/voltage harmonic suppression in digital power supplies. |
| Advanced motor control timers | TIM1/TIM8 with 8-channel complementary PWM, dead-time insertion, and emergency stop input - meets IEC 60730 Class B functional safety requirements. |
| VREFBUF internal reference | Programmable 2.048 V / 2.5 V / 2.9 V output with ±0.5% accuracy - replaces external voltage reference ICs in precision ADC/DAC applications. |
| UCPD interface | Integrated USB Type-C™ Power Delivery controller with CC logic - enables bidirectional power negotiation and role swapping without external PD controller. |
Applications
| Motor Control System | Digital Power Supply |
|---|---|
Use Scenario: Three-phase BLDC/PMSM motor drive with field-oriented control (FOC) and active current sensing. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating 6-channel gated PWM with synchronized ADC sampling and dead-time management. Use Value: CORDIC computes rotor angle in <100 ns; FMAC filters phase currents in real time; TIM1/TIM8 deliver precise 100 ns dead-time resolution. | Use Scenario: Isolated AC/DC or DC/DC converter with adaptive voltage regulation and protection. IC Role / Device Role / Timing Role: Digital power controller managing PWM generation, voltage/current loop compensation, and fault response. Use Value: Dual 16-bit ADCs sample primary/secondary side signals simultaneously; 12-bit DACs set reference voltages; UCPD handles USB-C power negotiation. |
| Industrial Sensor Node | USB-C Peripheral Hub |
Use Scenario: Multi-sensor edge node (temperature, pressure, vibration) with local preprocessing and wireless upload. IC Role / Device Role / Timing Role: Signal acquisition hub performing analog front-end conditioning, oversampled ADC conversion, and FFT-based feature extraction. Use Value: 3 op-amps condition sensor outputs; 16-bit ADCs achieve >90 dB SNR; CCM-SRAM stores time-series buffers for on-chip analysis. | Use Scenario: Docking station or monitor hub supporting USB-C display/data/power delivery. IC Role / Device Role / Timing Role: USB-C port controller managing CC pin detection, power role negotiation, and alternate mode configuration. Use Value: Integrated UCPD peripheral handles PD 3.0 messaging; FDCAN monitors system health; USB FS interface provides HID/CCID device class support. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431K6T6 | LQFP32 package (32-pin), 25 GPIOs, no FDCAN or UCPD, reduced timer count (1x advanced motor timer) | Suitable for space-constrained, lower-peripheral-count motor drives or sensor nodes without USB-C or CAN FD | Select when board area is critical and FDCAN/UCPD are unnecessary - saves ~30% BOM cost. |
| STM32G474RET6 | LQFP64, 512 KB Flash, 128 KB SRAM, dual ADCs with interleaving, enhanced security (AES, PKA), no UCPD | Targeted at higher-security industrial gateways or complex digital power with extended firmware features | Choose for larger code footprint, cryptographic acceleration, or higher-resolution ADC timing - but requires redesign for missing UCPD functionality. |
Compared with STM32G431K6T6, the STM32G431R6T6 adds FDCAN and UCPD for modern industrial connectivity and USB-C power control; versus STM32G474RET6, it trades Flash/SRAM capacity and security for integrated USB-C power delivery - making it optimal for compact, cost-sensitive USB-C–enabled motor or power controllers.
Availability
STM32G431R6T6 is available at Aetrix Electronics and suitable for motor control systems, digital power converters, industrial sensor nodes, and USB-C peripheral hubs requiring stable component supply across production lifecycles.
Supply support for STM32G431R6T6 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 management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, cost-optimized real-time control applications - integrating math accelerators, rich analog peripherals, and USB-C power delivery to simplify design of smart power converters and intelligent motor drives.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32G431R6T6 achieves 170 MHz core clock using its Adaptive Real-Time Accelerator (ART), which caches Flash accesses to eliminate wait states. This allows deterministic execution of code from internal Flash memory at full speed, validated across the industrial temperature range (–40 °C to +85 °C) with 1.71–3.6 V supply.
Does this MCU support USB Type-C™ Power Delivery negotiation?
Yes - the STM32G431R6T6 integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It handles CC pin detection, SOP message exchange, VCONN switching, and role negotiation (DFP/UFP) without external PD controller ICs.
How many analog-to-digital converters does it have and what are their key specs?
It includes two independent 16-bit ADCs with up to 23 input channels, 0.25 µs conversion time, hardware oversampling (up to 12-bit effective resolution at 16x), and 0–3.6 V input range. Both support simultaneous sampling and trigger synchronization with advanced timers for motor current measurement.
What development tools are officially supported for this part?
ST provides full support via STM32CubeG4 firmware package, STM32CubeMX configuration tool, and STM32CubeIDE (Eclipse-based). Hardware debug is enabled through SWD/JTAG using ST-LINK/V2-1 or ST-LINK/V3; Nucleo-G431RB and Discovery kits offer out-of-box evaluation with preloaded examples for motor control and USB-C PD.
STM32G431R6T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32G4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
- 52
- Program Memory Size:
- 32KB (32K 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; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G431R6T6 FAQ
1.How can I place an order for STM32G431R6T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G431R6T6 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 STM32G431R6T6 reliable?
The price and inventory of STM32G431R6T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G431R6T6 is usually 5 days.
3.What payment methods are accepted for STM32G431R6T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G431R6T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G431R6T6?
STM32G431R6T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G431R6T6 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 STM32G431R6T6?
For technical support, including STM32G431R6T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G431R6T6 requirements.
6.How does Aetrix verify that STM32G431R6T6 is sourced from the original manufacturer or authorized distributors?
All STM32G431R6T6 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 STM32G431R6T6 meets industry standards.
7.What is the process for return or replacement of STM32G431R6T6?
All STM32G431R6T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G431R6T6, 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 STM32G431R6T6 part is unused and in its original packaging.
Return procedure for STM32G431R6T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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