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STMicroelectronics STM32G474QET3
- Part No.:
- STM32G474QET3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
STM32G474QET3.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:540
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Product details
Overview
STM32G474QET3 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 96 KB SRAM (including 32 KB CCM with parity), and integrated mathematical accelerators (CORDIC, FMAC). It delivers 184 ps resolution on its HRTIM for high-precision motor control in industrial inverters.
For engineers reviewing the STM32G474QET3 datasheet, STM32G474QET3 pinout, STM32G474QET3 application, or STM32G474QET3 equivalent, key selection criteria include its dual-bank read-while-write Flash, 7-channel 12-bit DAC (3 buffered @ 1 MSPS), 5×12-bit ADCs with hardware oversampling, FDCAN FD support, and UCPD interface for USB Type-C power delivery systems.
Technical Context
The STM32G474QET3 implements a tightly coupled ART Accelerator enabling zero-wait-state execution from Flash, paired with a multi-AHB interconnect matrix for concurrent peripheral access. Its core integrates MPU, DSP instructions, and optional memory protection for real-time deterministic operation.
It features three independent FDCAN controllers compliant with ISO 11898-1:2015 (FD mode), a dedicated USB Type-C™/PD controller (UCPD) with VBUS monitoring and role swap support, and a high-resolution timer (HRTIM) with six 16-bit counters and programmable dead-time insertion for three-phase motor gate drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP extensions, 170 MHz max frequency (213 DMIPS) |
| Memory | 512 KB Flash (dual-bank, ECC, PCROP), 96 KB SRAM (32 KB CCM + 64 KB general) |
| Analog Peripherals | 5 × 12-bit ADCs (42 channels, 0.25 µs conversion), 7 × 12-bit DACs (3 buffered external @ 1 MSPS) |
| Timers | HRTIM (184 ps resolution, 12 PWM outputs), 3 × advanced motor control timers with dead-time generation |
| Communication | 3 × FDCAN FD controllers, 5 × USART/UART (incl. LIN/IrDA), 4 × I²C (Fast Mode Plus), UCPD interface |
| Supply & Power | 1.71–3.6 V operation; supports sleep/stop/standby/shutdown modes; VBAT RTC backup |
| Math Acceleration | CORDIC engine for sin/cos/tan/atan/sqrt/log/exp; FMAC for FIR/IIR filter computation |
Pinout & Package
STM32G474QET3 uses the UFQFPN48 (7 × 7 mm) package with 48 pins, optimized for space-constrained industrial and motor control applications. Pin functions include dual VDD/VSS pairs, dedicated VREF+/- for precision analog, UCPD CC1/CC2 lines, FDCAN RX/TX differential pairs, and HRTIM CHxA/CHxB complementary outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core & I/O supply rails | Dual 1.71–3.6 V domains enable noise isolation between analog/digital sections |
| VREF+ | Analog reference input | Accepts external 1.2–3.6 V reference for ADC/DAC full-scale calibration |
| PA13/PA14 | SWD debug interface | Serial Wire Debug (SWDIO/SWCLK) - no JTAG required for standard programming |
| PA11/PA12 | USB 2.0 FS interface | Full-speed D+/D− signals with internal transceivers; no external PHY needed |
| PC11/PC12 | UCPD CC1/CC2 | USB Type-C configuration channel pins supporting VCONN sourcing and role negotiation |
| PH13/PH14 | HRTIM CH1A/CH1B | Complementary 184 ps-resolution PWM outputs with programmable dead time for half-bridge drive |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-Time Accelerator (ART) | Enables 0-wait-state execution from Flash at 170 MHz, eliminating cache-related timing jitter in real-time loops |
| High-Resolution Timer (HRTIM) | 184 ps timing resolution across six 16-bit counters, supporting complex waveform synthesis for digital power converters |
| CORDIC & FMAC accelerators | Offload trigonometric and filtering computations from CPU, reducing interrupt latency in motor control servo loops |
| FDCAN FD with flexible data rate | Supports 2 Mbps arbitration + 5 Mbps data phase, enabling high-bandwidth sensor fusion in automotive-grade networks |
| UCPD interface with hardware PD stack | Integrates USB Power Delivery protocol engine, enabling source/sink role negotiation without host MCU intervention |
Applications
| Industrial Motor Drives | USB Type-C Power Delivery Systems |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Primary motor control MCU executing FOC algorithm, generating 6-channel complementary PWM via HRTIM with <1 ns jitter tolerance. Use Value: 184 ps HRTIM resolution enables precise dead-time compensation and harmonic suppression, improving inverter efficiency by ≥1.2% at 20 kHz switching. | Use Scenario: Embedded USB-C PD sink in portable medical devices requiring programmable voltage/current negotiation and battery charging. IC Role / Device Role / Timing Role: Standalone PD controller managing CC line signaling, VBUS monitoring, and policy engine execution via integrated UCPD peripheral. Use Value: Hardware-accelerated PD stack reduces firmware overhead by >65%, freeing CPU for safety-critical diagnostics and BLE telemetry. |
| Digital Power Converters | Automotive Body Electronics |
Use Scenario: Digital AC/DC and DC/DC SMPS with adaptive voltage regulation and real-time fault response. IC Role / Device Role / Timing Role: System-on-chip controller handling PWM generation (HRTIM), current/voltage sensing (ADC), and loop compensation (FMAC). Use Value: FMAC computes 128-tap FIR filters in <1.5 µs, enabling 100 kHz digital control loops with <2 µs total latency. | Use Scenario: Gateway node aggregating LIN-sensor data and forwarding over FDCAN FD to ADAS domain controller. IC Role / Device Role / Timing Role: Dual-interface bridge MCU with LIN physical layer (via USART) and FDCAN FD transceiver interface. Use Value: FDCAN FD's 5 Mbps data phase supports 3× more sensor data per frame vs classical CAN, reducing gateway processing load by 40%. |
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 | LQFP64 package (64-pin), +16 GPIOs, adds FSMC interface and extra ADC channel | Better suited for designs needing external SRAM/NOR flash or higher I/O count | Select when board layout allows larger footprint and external memory expansion is required |
| STM32H743VIT6 | Cortex-M7 core @ 480 MHz, 2 MB Flash, dual-core capability, no UCPD or HRTIM | Targets high-throughput signal processing; lacks USB-C PD and ultra-fine PWM timing | Choose only if raw compute throughput outweighs need for sub-nanosecond PWM control or embedded PD management |
Compared with STM32G474RET6, the QET3 offers identical peripherals in a smaller 7×7 mm UFQFPN48 package but fewer GPIOs; versus STM32H743VIT6, it trades peak CPU performance for deterministic real-time analog/motor control features essential in power electronics.
Availability
STM32G474QET3 is available at Aetrix Electronics and suitable for industrial motor drives, USB Type-C power delivery systems, digital power converters, and automotive body electronics requiring stable component supply across long production lifecycles.
Supply support for STM32G474QET3 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 with strong industrial and automotive qualification heritage.
The STM32G4 series targets high-efficiency digital power, motor control, and USB-C PD applications, combining real-time determinism, analog richness, and hardware math acceleration in a single chip.
FAQ
What is the maximum operating temperature range for STM32G474QET3?
The STM32G474QET3 is qualified for industrial temperature range: –40 °C to +85 °C ambient. Its thermal design supports continuous operation at full 170 MHz clock under worst-case PCB copper pour and airflow conditions, validated per JEDEC JESD51-2 standards.
Does STM32G474QET3 support secure boot and firmware encryption?
Yes. It includes hardware-based secure features: proprietary code readout protection (PCROP), securable memory areas, 96-bit unique ID, and support for AES-256 encryption via DMA-linked crypto accelerator. Secure boot is implemented via ROM-based bootloader with public-key signature verification.
Can the HRTIM generate complementary PWM signals with programmable dead time?
Yes. The HRTIM provides six independent 16-bit timers with fully configurable complementary output pairs (CHxA/CHxB), each supporting hardware-programmable dead time (1–255 ns steps), fault inputs for emergency shutdown, and synchronous update across all channels.
Is the UCPD peripheral capable of full USB Power Delivery 3.0 policy engine execution?
Yes. The integrated UCPD peripheral implements the complete USB PD 3.0 physical layer and policy engine in hardware, including BMC encoding/decoding, VCONN switching, role swap negotiation, and Fast Role Swap (FRS) handling - all without CPU intervention.
STM32G474QET3 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®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 107
- Program Memory Size:
- 512KB (512K 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G474QET3 FAQ
1.How can I place an order for STM32G474QET3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474QET3 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 STM32G474QET3 reliable?
The price and inventory of STM32G474QET3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474QET3 is usually 5 days.
3.What payment methods are accepted for STM32G474QET3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474QET3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474QET3?
STM32G474QET3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474QET3 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 STM32G474QET3?
For technical support, including STM32G474QET3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474QET3 requirements.
6.How does Aetrix verify that STM32G474QET3 is sourced from the original manufacturer or authorized distributors?
All STM32G474QET3 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 STM32G474QET3 meets industry standards.
7.What is the process for return or replacement of STM32G474QET3?
All STM32G474QET3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474QET3, 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 STM32G474QET3 part is unused and in its original packaging.
Return procedure for STM32G474QET3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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