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STMicroelectronics STM32G431K8T6
- Part No.:
- STM32G431K8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM32G431K8T6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:343
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Product details
Overview
STM32G431K8T6 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 16-bit ADCs (0.25 µs), 4 comparators, 3 op-amps, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G431K8T6 datasheet, STM32G431K8T6 pinout, STM32G431K8T6 application, or STM32G431K8T6 equivalent, key selection criteria include FDCAN support for automotive-grade communication, 5 V-tolerant I/Os for mixed-voltage interfacing, ultra-fast analog subsystem timing (sub-µs ADC/DAC), and UCPD interface for USB Type-C™ power delivery control.
Technical Context
The STM32G431K8T6 implements an Arm Cortex-M4 core with hardware FPU and Adaptive Real-Time (ART) accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory architecture includes 128 KB ECC-protected Flash, 22 KB parity-checked SRAM, and 10 KB CCM SRAM with parity - all accessible via multi-AHB interconnect matrix for deterministic peripheral access.
Analog subsystem integration includes two independent 16-bit ADCs (up to 23 channels, hardware oversampling), four rail-to-rail comparators with window mode, three fully configurable op-amps (including PGA mode), and dedicated CORDIC/FMAC accelerators for real-time trigonometric and filtering computations - optimized for closed-loop control without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU 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, hardware parity) |
| Analog Peripherals | 2 × 16-bit ADCs (0.25 µs, 23 ch, oversampling), 4 × comparators, 3 × op-amps (PGA-capable), 4 × 12-bit DACs |
| Math Accelerators | CORDIC (trig/log/exp), FMAC (filtering), both offload CPU for real-time signal processing |
| Timers & Control | 14 timers including 2 × advanced motor-control timers (8 PWM, dead-time, emergency stop), LPTIM, RTC with alarm |
| Communication | FDCAN (flexible data-rate), 4 × USART/UART (LIN/IrDA), 3 × I²C (1 Mbit/s), 3 × SPI, USB FS, UCPD, SAI |
| Supply & Power | 1.71–3.6 V operation, POR/PDR/BOR, PVD, sleep/stop/standby/shutdown modes, VBAT for RTC/backup |
Pinout & Package
STM32G431K8T6 is housed in a 32-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for space-constrained industrial and motor control applications. Pin layout supports full GPIO remapping, 5 V-tolerant inputs on selected pins, and dedicated analog/digital domain separation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual-domain supply pins: VDD powers digital/analog circuits; VSS provides reference return path |
| VDDA, VSSA | Analog power / Analog ground | Isolated analog supply domain ensures low-noise ADC/DAC/OPAMP operation |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 86 fast I/Os; most mappable to EXTI, many 5 V tolerant - enables direct interfacing with legacy logic |
| PA1, PA2, PA3, PA4, PA5, PA6, PA7 | ADC1_INx / ADC2_INx | Shared analog input channels for dual 16-bit ADCs - supports simultaneous sampling across multiple sensors |
| PA4, PA5 | DAC1_OUT1 / DAC2_OUT1 | Buffered 12-bit DAC outputs (1 MSPS) - drive external amplifiers or actuator references directly |
| PA6, PA7 | COMP1_OUT / COMP2_OUT | Comparator outputs routed to timers for autonomous overcurrent/overvoltage protection triggering |
| PA8–PA15 | TIM1_CH1–CH4, TIM2_CH1–CH4 | Advanced timer capture/compare outputs - generate precise PWM for 3-phase motor drives |
| PD0–PD2 | USART2_TX/RX/CK | Hardware UART interface supporting LIN physical layer - used for automotive sub-system diagnostics |
| PC11–PC12 | FDCAN1_RX/TX | Dedicated CAN FD transceiver interface - enables high-speed vehicle network communication up to 5 Mbps |
| PA13–PA15 | SWDIO / SWCLK / NRST | Serial Wire Debug interface - enables non-intrusive firmware debug and flash programming |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric/logarithmic computation in <100 ns - eliminates software math library overhead in motor FOC |
| FMAC unit | Dedicated filter engine supporting biquad IIR and FIR operations - enables real-time current/voltage loop filtering at 170 MHz |
| Adaptive Real-Time Accelerator | Zero-wait-state Flash execution at 170 MHz - guarantees deterministic interrupt latency for hard real-time control |
| UCPD interface | Integrated USB Type-C™ power delivery controller - manages VBUS negotiation, CC line monitoring, and role swapping without external IC |
| Op-amp PGA mode | Programmable gain (1–40×) with internal feedback - enables configurable sensor signal conditioning without external components |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 6-channel complementary PWM with dead-time, and sampling current/voltage via synchronized ADC triggers. Use Value: CORDIC and FMAC accelerate Clarke/Park transforms and PI loop filtering; 170 MHz core ensures <1 µs current loop update time. | Use Scenario: Digital AC-DC and DC-DC converters with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Primary digital power controller managing PWM generation, voltage/current loop regulation, and thermal/fault response via analog comparators. Use Value: Dual 16-bit ADCs sample primary/secondary side simultaneously; comparator outputs trigger emergency PWM shutdown in <100 ns. |
| USB-C Power Delivery System | Smart Industrial Sensor Node |
Use Scenario: USB-C port controller in docking stations and portable chargers negotiating power contracts up to 100 W. IC Role / Device Role / Timing Role: UCPD PHY + protocol engine handling CC line signaling, VBUS monitoring, and PD message exchange per USB PD 3.0 spec. Use Value: Integrated UCPD eliminates need for external PD controller; hardware CRC and message buffering reduce firmware complexity. | Use Scenario: Battery-powered condition-monitoring node measuring temperature, vibration, and humidity in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power system-on-chip acquiring analog sensor data, performing edge FFT via CORDIC/FMAC, and transmitting via LPUART/USB. Use Value: Shutdown mode draws <30 nA; RTC with periodic wakeup enables scheduled sensing; VREFBUF provides stable 2.048 V reference for precision ADC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431CBT6 | LQFP48 package (48 pins), 23 additional GPIOs, same core/peripherals, no UCPD | Requires more PCB area; supports expanded analog I/O and extra communication interfaces (e.g., second SPI) | Select when board layout allows larger footprint and UCPD is not required |
| STM32F303K8T6 | Lower clock (72 MHz), no CORDIC/FMAC, 64 KB Flash, no FDCAN or UCPD, older Cortex-M4 | Suitable for cost-sensitive, non-FD CAN or USB-C applications with simpler math requirements | Select only if legacy F3 toolchain compatibility or lower BOM cost outweighs G4's real-time math and interface advantages |
Compared with STM32G431CBT6, the K8T6 offers smaller form factor and UCPD but fewer I/Os; versus STM32F303K8T6, it delivers 2.4× higher compute throughput, hardware-accelerated math, and modern interfaces essential for next-gen digital power and USB-C designs.
Availability
STM32G431K8T6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and USB-C power delivery systems requiring stable component supply, long-term manufacturability, and qualified automotive-grade reliability.
Supply support for STM32G431K8T6 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-rich embedded control applications - combining real-time analog integration, math acceleration, and USB-C/automotive interfaces in a single chip for digital power, motor control, and smart charging systems.
FAQ
What is the maximum operating frequency and associated performance metric of the STM32G431K8T6?
The STM32G431K8T6 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved using the ART Accelerator, which enables zero-wait-state execution from Flash memory. The core is an Arm Cortex-M4 with hardware FPU and DSP extensions, supporting single-cycle MAC and SIMD instructions for efficient signal processing.
Does the STM32G431K8T6 support USB Type-C™ Power Delivery, and how is it implemented?
Yes - the STM32G431K8T6 integrates a full USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It includes dual CC line transceivers, VBUS discharge control, hardware CRC, message buffering, and PD protocol state machine - eliminating the need for an external PD controller IC and reducing BOM count and PCB area in compact chargers and docks.
How does the analog subsystem of the STM32G431K8T6 differ from earlier STM32 families?
The G431K8T6 features a significantly enhanced analog subsystem: dual independent 16-bit ADCs with hardware oversampling (up to 23 channels, 0.25 µs conversion), four ultra-fast rail-to-rail comparators with window mode, three op-amps configurable as PGAs, and a programmable VREFBUF (2.048 V / 2.5 V / 2.9 V). This enables high-precision, self-contained analog signal chains without external components in motor and power applications.
What low-power modes are supported, and what is the minimum current draw in shutdown mode?
The STM32G431K8T6 supports Sleep, Stop (0/1), Standby, and Shutdown modes. In Shutdown mode - where only the reset circuit and VBAT domain remain active - typical current consumption is 30 nA at 25 °C. This enables multi-year battery life in energy-harvesting and remote sensor applications, with RTC and backup registers retained via VBAT supply.
STM32G431K8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM32G4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- 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:
- 26
- Program Memory Size:
- 64KB (64K 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 11x12b; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G431K8T6 FAQ
1.How can I place an order for STM32G431K8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G431K8T6 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 STM32G431K8T6 reliable?
The price and inventory of STM32G431K8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G431K8T6 is usually 5 days.
3.What payment methods are accepted for STM32G431K8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G431K8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G431K8T6?
STM32G431K8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G431K8T6 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 STM32G431K8T6?
For technical support, including STM32G431K8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G431K8T6 requirements.
6.How does Aetrix verify that STM32G431K8T6 is sourced from the original manufacturer or authorized distributors?
All STM32G431K8T6 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 STM32G431K8T6 meets industry standards.
7.What is the process for return or replacement of STM32G431K8T6?
All STM32G431K8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G431K8T6, 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 STM32G431K8T6 part is unused and in its original packaging.
Return procedure for STM32G431K8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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