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STMicroelectronics STM32G431R6I6
- Part No.:
- STM32G431R6I6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-UFBGA
- Datasheet:
-
STM32G431R6I6.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,173
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Product details
Overview
STM32G431R6I6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, 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 12-bit ADCs (0.25 µs conversion), 4 comparators, 3 op-amps, and CORDIC/FMAC math accelerators - deployed in motor control, digital power supplies, and industrial sensing systems.
For engineers reviewing the STM32G431R6I6 datasheet, STM32G431R6I6 pinout, STM32G431R6I6 application, or STM32G431R6I6 equivalent, key selection considerations include its 48-pin UFQFPN package, FDCAN support, USB 2.0 FS + UCPD, low-power timer, and hardware-accelerated trigonometric/filter computations for real-time embedded control.
Technical Context
The STM32G431R6I6 implements an Arm Cortex-M4 core with single-precision FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes 128 KB Flash with ECC and PCROP, 22 KB SRAM with parity on first 16 KB, and 10 KB CCM SRAM with parity - all accessible via multi-AHB interconnect matrix.
Analog integration comprises two independent 12-bit ADCs (up to 23 channels, 0.25 µs conversion), four rail-to-rail comparators, three fully accessible op-amps (configurable as PGAs), internal VREFBUF (2.048/2.5/2.9 V), and dedicated hardware accelerators: CORDIC for sin/cos/tan/arctan and FMAC for FIR/IIR filtering - optimized for closed-loop digital power and motor control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 170 MHz max frequency (213 DMIPS), MPU, DSP instructions |
| Memory | 128 KB Flash (ECC, PCROP, 1 KB OTP), 32 KB SRAM (22 KB + 10 KB CCM), all with hardware parity |
| Analog Peripherals | Dual 12-bit ADCs (0.25 µs, 23 ch), 4x comparators, 3x op-amps (PGA-capable), VREFBUF (3 output voltages) |
| Math Accelerators | CORDIC (trig/log/exp), FMAC (filtering), both offload CPU for deterministic real-time computation |
| Timers & Control | 14 timers including 2x advanced motor-control timers (8 PWM, dead time, emergency stop), LPTIM, RTC with alarm |
| Communication | FDCAN (flexible data rate), 4x USART/UART, 3x I²C (1 Mbit/s), 3x SPI, USB 2.0 FS + UCPD, SAI, LPUART |
| Package & Supply | UFQFPN48 (7 × 7 mm), 1.71–3.6 V operation, -40°C to +85°C industrial temp range |
Pinout & Package
STM32G431R6I6 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad, RoHS-compliant, suitable for high-density PCB layouts with efficient thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O supply pins; separate VDDA/VSSA required for analog domain stability |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1 | General-purpose I/O | Up to 42 GPIOs mappable to interrupts; multiple pins support 5 V tolerance and alternate functions |
| NRST | Reset input | Active-low reset with internal pull-up; supports external reset source or debugger-initiated reset |
| BOOT0 | Boot mode selection | High at power-on selects system memory boot (for bootloader); low selects user Flash memory |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–48 MHz crystal; enables precise clock source for USB, CAN, and RTC timing accuracy |
| VBAT | Backup power supply | Supplies RTC and backup registers during main power loss; accepts 1.65–3.6 V battery input |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware engine delivering sin/cos/tan/arctan/log/exp in <100 ns - eliminates software library latency in motor angle estimation |
| FMAC unit | Dedicated filter math accelerator supporting 32-bit MAC operations for real-time FIR/IIR filtering without CPU load |
| Advanced motor timers (TIM1/TIM8) | Each provides 8-channel PWM, programmable dead time, fault protection, and emergency stop - essential for 3-phase inverter control |
| FDCAN controller | Supports ISO 11898-1:2015 flexible data-rate (up to 5 Mbps) for automotive-grade diagnostics and firmware updates |
| USB Type-C™/PD controller (UCPD) | Integrated UCPD PHY and logic enabling native USB-C port negotiation, VBUS monitoring, and role swapping - no external IC needed |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of BLDC/PMSM motors in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Main controller executing real-time FOC loop, ADC sampling, PWM generation, and fault handling with sub-microsecond timing precision. Use Value: CORDIC and FMAC offload 70% of trigonometric and filtering calculations, enabling 20 kHz PWM update rate with 5 µs loop latency. |
Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and digital compensation. IC Role / Device Role / Timing Role: Digital signal controller managing dual ADC sampling, PID computation, and isolated gate driver timing via advanced timers. Use Value: Dual 12-bit ADCs synchronized to PWM edges achieve <1 LSB noise at 1 MSPS, enabling ±0.5% output regulation accuracy. |
| Smart Sensor Hub | USB-C Power Delivery Endpoint |
Use Scenario: Multi-sensor node aggregating temperature, current, and vibration data for predictive maintenance in factory equipment. IC Role / Device Role / Timing Role: Sensor fusion hub with simultaneous analog acquisition (ADC + op-amp PGA), digital filtering (FMAC), and secure wireless upload. Use Value: Integrated op-amps with PGA mode condition low-level sensor signals directly - eliminating external signal conditioning components. |
Use Scenario: USB-C powered monitor or docking station requiring dynamic power negotiation and VBUS fault protection. IC Role / Device Role / Timing Role: UCPD controller managing PD communication, VBUS monitoring, and port role switching per USB PD 3.0 specification. Use Value: On-chip UCPD eliminates need for discrete PD controller IC, reducing BOM count and PCB area by 35%. |
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), reduced GPIO count (26 vs 42), same core/peripherals but no UCPD or SAI | Suitable for space-constrained cost-sensitive designs lacking USB-C or audio interfaces | Select when board layout requires smaller footprint and UCPD/SAI are unused - reduces routing complexity and cost |
| STM32G471REY6TR | UFQFPN68 package, 512 KB Flash, 128 KB SRAM, adds AES-256, SHA-256, and additional ADC/DAC channels | Targeted at higher-security or higher-channel-count applications (e.g., grid-tied inverters, medical sensors) | Choose when cryptographic acceleration or expanded analog I/O is required - not a drop-in replacement due to pin count and peripheral differences |
Compared with STM32G431K6T6, the STM32G431R6I6 offers 16 more GPIOs, UCPD, and SAI in the same 7×7 mm footprint; versus STM32G471REY6TR, it trades security/crypto and memory headroom for lower cost and simpler qualification in volume industrial control.
Availability
STM32G431R6I6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart sensor nodes, and USB-C PD endpoints requiring stable component supply across long-lifecycle production programs.
Supply support for STM32G431R6I6 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, cost-sensitive real-time control applications - combining Cortex-M4 compute, rich analog integration, and hardware math acceleration to replace dual-chip solutions in digital power and motor control.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32G431R6I6 achieves a maximum CPU frequency of 170 MHz, delivering 213 DMIPS (Dhrystone MIPS) with the ART Accelerator enabled. This performance level is sustained with zero-wait-state execution from Flash memory, verified under standard industrial conditions (VDD = 3.3 V, TA = 25 °C). The FPU supports single-precision floating-point operations essential for real-time control algorithms.
Does STM32G431R6I6 support USB Power Delivery negotiation natively?
Yes - the STM32G431R6I6 integrates a full USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It includes the physical layer (PHY), protocol engine, and VBUS monitoring circuitry, enabling direct implementation of sink, source, or dual-role ports without external PD controllers. Firmware libraries (STM32CubeG4) provide certified PD stack support.
How many analog-to-digital converter channels does it support, and what is their resolution and speed?
The device features two independent 12-bit ADCs with up to 23 total input channels (including internal sensors). Each ADC achieves 0.25 µs conversion time (4 MSPS sampling rate), with hardware oversampling support up to 16-bit effective resolution. Both ADCs support synchronous dual-mode operation and precise timing alignment with PWM events for current sensing in motor control.
What low-power modes are available, and what is the typical current draw in Stop mode?
Five low-power modes are supported: Sleep, Low-power Sleep, Stop 0, Stop 1, and Standby. In Stop 1 mode (all clocks stopped, SRAM/registers retained, VDD/VDDA powered), typical current consumption is 2.3 µA at 25 °C (VDD = 3.3 V). Real-time clock and wake-up pins remain active, enabling sub-10 µs wakeup latency - critical for battery-powered sensor nodes.
STM32G431R6I6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-UFBGA
- Series:
- STM32G4
- Packaging:
- Bulk
- 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:
- 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 SAR; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G431R6I6 FAQ
1.How can I place an order for STM32G431R6I6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G431R6I6 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 STM32G431R6I6 reliable?
The price and inventory of STM32G431R6I6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G431R6I6 is usually 5 days.
3.What payment methods are accepted for STM32G431R6I6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G431R6I6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G431R6I6?
STM32G431R6I6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G431R6I6 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 STM32G431R6I6?
For technical support, including STM32G431R6I6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G431R6I6 requirements.
6.How does Aetrix verify that STM32G431R6I6 is sourced from the original manufacturer or authorized distributors?
All STM32G431R6I6 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 STM32G431R6I6 meets industry standards.
7.What is the process for return or replacement of STM32G431R6I6?
All STM32G431R6I6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G431R6I6, 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 STM32G431R6I6 part is unused and in its original packaging.
Return procedure for STM32G431R6I6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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