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STMicroelectronics STM32G473QCT6
- Part No.:
- STM32G473QCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
STM32G473QCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,739
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Product details
Overview
STM32G473QCT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash, 170 MHz max clock, 128 KB SRAM, and integrated CORDIC/FMAC math accelerators-designed for real-time motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473QCT6 datasheet, STM32G473QCT6 pinout, STM32G473QCT6 application, or STM32G473QCT6 equivalent, key selection criteria include FDCAN support for automotive-grade communication, 7-channel 12-bit DAC with 1 MSPS buffered outputs, ultra-fast rail-to-rail comparators, and UCPD interface for USB Type-C™ power delivery control.
Technical Context
The device implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a Memory Protection Unit (MPU) and dual-bank Flash supporting read-while-write and PCROP security. Its interconnect matrix routes up to 107 GPIOs across multiple bus domains with DMA arbitration.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a dedicated USB Type-C™/PD controller (UCPD), and seven independent 12-bit DAC channels-including three buffered external outputs and four unbuffered internal outputs-enabling simultaneous analog waveform generation and feedback conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex®-M4 with FPU and DSP instructions, delivering 213 DMIPS at 170 MHz |
| Flash Memory | 512 KB with ECC, dual-bank architecture enabling seamless firmware updates without interruption |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM SRAM with parity check on instruction/data bus |
| Analog Peripherals | 5× 12-bit ADCs (42 channels, 0.25 µs conversion), 7× 12-bit DACs, 7× rail-to-rail comparators, 6× op-amps in PGA mode |
| Timers | 14 timers including 3× advanced motor-control timers (TIM1/TIM8/TIM20) with dead-time generation and emergency stop |
| Communication | 3× FDCAN, 5× USART/UART, 4× I²C, 4× SPI, 1× SAI, 1× USB FS with LPM/BCD, 1× UCPD controller |
| Math Acceleration | CORDIC engine for hardware-accelerated trigonometric/logarithmic functions; FMAC for real-time FIR/IIR filtering |
Pinout & Package
STM32G473QCT6 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for compact industrial and motor control PCB layouts with thermal pad for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual VDD pins (VDDA/VDD) enable analog/digital domain separation; VSS pins provide low-impedance return paths |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 GPIOs, many 5 V tolerant, mappable to all interrupt vectors and peripheral alternate functions |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins with internal pull-ups; require no external termination resistors |
| PD0/PD1 | FDCAN1_RX/FDCAN1_TX | Differential CAN FD physical layer interface supporting flexible data-rate up to 5 Mbit/s |
| PC13/PC14/PC15 | RTC_OUT/LSE_IN/LSE_OUT | Low-power 32.768 kHz crystal oscillator inputs for calendar RTC with alarm and periodic wakeup from Stop/Standby |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric/logarithmic computation in <100 ns per operation-reducing CPU load in motor vector control loops |
| FMAC unit | 16×16-bit MAC with 32-bit accumulator enables real-time 2nd-order IIR filter execution in ≤10 cycles |
| UCPD controller | Integrated USB Type-C™ Power Delivery PHY and protocol engine-eliminates need for external PD controller IC |
| Advanced timers | TIM1/TIM8/TIM20 support complementary PWM outputs with programmable dead time and synchronous fault input handling |
| VREFBUF | Internal voltage reference buffer with selectable 2.048 V / 2.5 V / 2.9 V outputs-calibrated for precision ADC/DAC reference stability |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Primary MCU executing real-time FOC algorithm, managing gate drivers via advanced timers, and sampling current/voltage via synchronized ADCs. Use Value: CORDIC and FMAC offload >40% of CPU cycles during vector transformations and current-loop filtering, enabling 20 kHz PWM switching with margin. | Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: System controller coordinating multi-phase PWM generation, isolated feedback acquisition, and digital compensation using internal DACs and comparators. Use Value: Seven DAC channels allow simultaneous control of multiple regulation loops (VOUT, IOUT, temperature), while 7 comparators enable fast overcurrent/overvoltage response (<100 ns). |
| USB-C Power Delivery Hub | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Multi-port USB-C docking station negotiating power contracts up to 100 W and routing DisplayPort/USB data. IC Role / Device Role / Timing Role: UCPD controller managing PD communication, policy engine, and port power switching via GPIO-controlled MOSFETs. Use Value: Integrated UCPD eliminates external PD controller, reducing BOM count by 1 IC and simplifying certification for USB-IF compliance. | Use Scenario: Modular PLC base unit acquiring analog sensor inputs, driving relay/SSR outputs, and communicating via industrial protocols. IC Role / Device Role / Timing Role: Central processing node interfacing with 16-bit ADCs, 12-bit DACs, and FDCAN for deterministic fieldbus communication. Use Value: Dual-bank Flash supports safe firmware updates during runtime; 512 KB capacity accommodates RTOS, protocol stacks, and application logic in single-chip solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | Same core/peripherals but includes AES-256/HASH/RNG crypto accelerators; 64-pin LQFP package | Better suited for secure firmware updates and encrypted communication in IoT edge nodes | Select when cryptographic services are required and larger package is acceptable |
| STM32H743VIT6 | Higher performance Cortex-M7 core (480 MHz), 2 MB Flash, dual-core option, but no CORDIC/FMAC and higher power envelope | Targeted at complex HMI, vision preprocessing, or multi-protocol gateway-not optimized for math-intensive analog control | Choose only if raw compute throughput outweighs analog integration and power efficiency needs |
Compared with STM32G474RET6, the STM32G473QCT6 trades crypto acceleration for smaller footprint and lower cost in non-secure motor/power apps; versus STM32H743VIT6, it delivers superior analog subsystem density and deterministic low-latency math execution at half the dynamic power.
Availability
STM32G473QCT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, USB-C PD hubs, and PLC I/O modules requiring stable component supply across long production lifecycles.
Supply support for STM32G473QCT6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32G4 series targets cost-sensitive, high-precision analog-digital hybrid applications-specifically engineered for digital power, motor control, and USB-C PD systems demanding math acceleration and rich peripheral integration.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32G473QCT6 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state Flash execution. It achieves 213 DMIPS (Dhrystone 2.1) and 1.25 CoreMark/MHz, verified per ARM standard benchmarks under full voltage and temperature range conditions.
Does this MCU support USB Type-C™ Power Delivery negotiation natively?
Yes-the integrated UCPD (USB-C Power Delivery) controller handles physical layer signaling, PD protocol stack execution, and policy engine management without external ICs. It supports USB PD 3.0, Programmable Power Supply (PPS), and vendor-defined messages per USB-IF specifications.
How many independent analog-to-digital converters does the STM32G473QCT6 include?
The device integrates five independent 12-bit ADCs with up to 42 total channels, each capable of 0.25 µs conversion time and hardware oversampling up to 16-bit resolution. They support simultaneous sampling, injected/conversion modes, and precise synchronization with timers for motor current sensing.
What packaging and thermal characteristics define the QCT6 suffix?
The "QCT6" suffix denotes a UFQFPN48 package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad. Its RθJA is 41.5°C/W (JEDEC Std), allowing sustained 170 MHz operation up to 85°C ambient when mounted on 2-layer PCB with 1-in² copper pour under the thermal pad.
STM32G473QCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 128-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, QSPI, SAI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 107
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 42x12b; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473QCT6 FAQ
1.How can I place an order for STM32G473QCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473QCT6 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 STM32G473QCT6 reliable?
The price and inventory of STM32G473QCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473QCT6 is usually 5 days.
3.What payment methods are accepted for STM32G473QCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473QCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473QCT6?
STM32G473QCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473QCT6 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 STM32G473QCT6?
For technical support, including STM32G473QCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473QCT6 requirements.
6.How does Aetrix verify that STM32G473QCT6 is sourced from the original manufacturer or authorized distributors?
All STM32G473QCT6 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 STM32G473QCT6 meets industry standards.
7.What is the process for return or replacement of STM32G473QCT6?
All STM32G473QCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473QCT6, 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 STM32G473QCT6 part is unused and in its original packaging.
Return procedure for STM32G473QCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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