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STMicroelectronics STM32G473MCT3
- Part No.:
- STM32G473MCT3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
STM32G473MCT3.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,298
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Product details
Overview
STM32G473MCT3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash (ECC), 128 KB SRAM, and integrated CORDIC/FMAC math accelerators. It operates up to 170 MHz (213 DMIPS), supports 5 V-tolerant I/Os, and integrates 5×12-bit ADCs (0.25 µs), 7×DAC channels, and 3×FDCAN controllers - deployed in industrial motor control and digital power conversion systems.
For engineers reviewing the STM32G473MCT3 datasheet, STM32G473MCT3 pinout, STM32G473MCT3 application, or STM32G473MCT3 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, hardware parity on CCM SRAM, 32 kHz RTC calibration, UCPD interface for USB Type-C™ PD, and ultra-fast rail-to-rail comparators for real-time protection loops.
Technical Context
The STM32G473MCT3 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a Memory Protection Unit (MPU) for secure task isolation. Its interconnect matrix routes 16 DMA channels across multiple AHB/APB buses, supporting concurrent analog acquisition, motor PWM generation, and CAN FD communication without bus contention.
It embeds three dedicated advanced motor control timers (TIM1/TIM8/TIM20) with 8-channel PWM output, programmable dead time, emergency stop input, and quadrature encoder support - directly enabling field-oriented control (FOC) of 3-phase PMSM/BLDC motors using internal op-amps in PGA mode and buffered DAC outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling floating-point motor control algorithms and real-time signal processing. |
| Max Clock Speed | 170 MHz (213 DMIPS), sustained via ART Accelerator - eliminates Flash wait states for deterministic interrupt latency. |
| Flash Memory | 512 KB with ECC, dual-bank architecture allowing seamless firmware updates while executing from one bank. |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM SRAM with hardware parity for critical code/data. |
| Analog Peripherals | 5×12-bit ADCs (42 ch, 0.25 µs), 7×DACs (3 buffered ext./4 unbuffered int.), 7×comparators, 6×op-amps (PGA-capable). |
| Communication | 3×FDCAN (flexible data-rate), 5×USART, 4×I²C (Fast Mode Plus), 4×SPI, USB FS with LPM/BCD, UCPD for USB Type-C™ PD negotiation. |
| Math Acceleration | CORDIC for sin/cos/tan/arctan and FMAC for FIR/IIR filter computation - offloads CPU in digital power and sensor fusion. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch) package with 38 user I/Os, including 5 V-tolerant pins, dedicated UCPD CC1/CC2 lines, and remappable timer/ADC/DAC channels.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual 1.71–3.6 V core/analog rails with independent decoupling required per datasheet layout guidelines. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD2, PF0–PF1 | General-purpose I/O | 38 total GPIOs; up to 25 support 5 V tolerance, all mappable to EXTI for wake-up or edge-triggered events. |
| PA1, PA2, PA3, PA4, PA5, PA6, PA7, PB0, PB1, PB10, PB11 | ADC inputs | Support simultaneous sampling across up to 5 ADCs - enables multi-sensor current/voltage monitoring in inverters. |
| PA4, PA5, PA6, PA7, PB0, PB1, PB15 | DAC outputs | 3 buffered external DACs (1 MSPS) for analog reference generation; 4 unbuffered internal DACs (15 MSPS) for fast feedback loop injection. |
| PA8–PA15, PB6–PB15, PC6–PC7, PD2 | PWM/timer outputs | Advanced timers TIM1/TIM8/TIM20 drive 3-phase gate drivers with complementary outputs, dead time, and fault protection. |
| PA11/PA12, PB9/PB10 | USB/UCPD interfaces | PA11/PA12 = USB D+/D−; PB9/PB10 = UCPD CC1/CC2 - enable native USB Type-C™ port controller functionality. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric engine reducing FOC angle calculation latency from >10 µs (software) to <200 ns - critical for 20+ kHz motor switching. |
| FMAC unit | Dedicated 32-bit filter engine supporting 16-tap FIR at 170 MHz - enables real-time digital compensator implementation in SMPS control. |
| UCPD peripheral | Integrated USB Type-C™ Power Delivery controller with CC logic, VCONN switch, and PD message handling - eliminates external PD IC in compact chargers. |
| Op-amp PGA mode | All 6 op-amps support programmable gain (1–20×) with external resistors; terminals fully accessible for current sensing and signal conditioning. |
| VREFBUF | Internal voltage reference buffer with selectable 2.048 V / 2.5 V / 2.9 V outputs - provides stable ADC/DAC reference independent of VDD variation. |
Applications
| Industrial Motor Drives | Digital Power Supplies |
|---|---|
Use Scenario: Field-oriented control of 3-phase PMSM motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithm, generating 6-channel complementary PWM with <100 ns dead time precision, and sampling phase currents via synchronized ADC triggers. Use Value: CORDIC and FMAC accelerate rotor position estimation and current loop compensation, enabling 20 kHz switching with <1 µs jitter on PWM edges. | Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and fault logging. IC Role / Device Role / Timing Role: Digital controller managing LLC resonant timing, synchronous rectification, and real-time overvoltage/overcurrent protection via comparator-triggered emergency stop. Use Value: 7 ultra-fast comparators with <50 ns response feed into advanced timers for sub-microsecond fault shutdown - meets IEC 62368-1 safety requirements. |
| USB-C Power Delivery Adapters | Battery Management Systems |
Use Scenario: Compact 65 W GaN-based USB-C PD adapters negotiating variable voltage (5–20 V) and current profiles. IC Role / Device Role / Timing Role: UCPD controller handling PD communication, VBUS monitoring, and gate driver sequencing - replaces discrete PD IC + MCU combo. Use Value: Integrated UCPD peripheral reduces BOM count by 3–4 components and eliminates external level shifters for CC line signaling. | Use Scenario: Multi-cell Li-ion battery packs with cell balancing, temperature monitoring, and state-of-charge estimation. IC Role / Device Role / Timing Role: Central BMS controller acquiring voltage (via 12-bit ADC), temperature (via internal sensor), and current (via shunt + op-amp), then running Kalman filter on FMAC. Use Value: Hardware parity on CCM SRAM ensures integrity of SOC algorithms; 96-bit unique ID enables secure firmware binding per pack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBT6 | Same Cortex-M4 core, but 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, single ADC, no UCPD. | Suitable for cost-sensitive motor control without FOC or USB-C PD. | Select when math acceleration and USB-C features are unnecessary and BOM cost is primary constraint. |
| STM32H743VIT6 | Cortex-M7 core, 2 MB Flash, 1 MB RAM, dual-core option, no CORDIC but higher clock (480 MHz), no UCPD. | Targeted at high-end industrial HMI + control integration, not USB-C PD or embedded analog-rich control. | Choose for applications requiring Linux-capable RTOS support, large framebuffer, or dual-core deterministic partitioning - not for analog-intensive real-time control. |
Compared with STM32G431KBT6, the STM32G473MCT3 adds hardware math acceleration and UCPD for USB-C PD, making it uniquely suited for compact digital power with protocol-aware control; versus STM32H743VIT6, it trades raw throughput for superior analog integration, lower power, and dedicated peripherals for motor/power conversion - optimizing for embedded real-time determinism over general-purpose compute.
Availability
STM32G473MCT3 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, USB-C PD adapters, and battery management systems requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for STM32G473MCT3 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 consumer market presence.
The STM32G4 series targets high-performance analog-digital convergence applications - designed specifically for digital power conversion, motor control, and USB-C PD systems where real-time signal processing, rich peripheral integration, and functional safety readiness are essential.
FAQ
What is the operating voltage range and temperature grade for STM32G473MCT3?
The STM32G473MCT3 operates from 1.71 V to 3.6 V across the industrial temperature range of –40 °C to +85 °C. Its VDDA rail must be ≥ VDD and ≤ 3.6 V for accurate analog performance. The device is qualified per AEC-Q100 Grade 2 for extended reliability in harsh environments.
Does STM32G473MCT3 support hardware encryption or secure boot?
No - the STM32G473MCT3 does not include a cryptographic processor (AES/TDES), TRNG (beyond basic RNG), or secure boot ROM. It supports securable memory areas via PCROP and write-protection bits, but lacks hardware root-of-trust features found in STM32L5 or STM32H5 series.
How many independent PWM channels can be generated simultaneously?
The STM32G473MCT3 supports up to 24 independent PWM outputs: TIM1/TIM8/TIM20 each provide 6 complementary channels (18 total), plus TIM2/TIM3/TIM4 offer additional 6 channels. All are configurable with programmable dead time, polarity, and synchronization triggers for multi-phase topologies.
Is the UCPD peripheral compliant with USB Type-C™ specification revision 2.1?
Yes - the UCPD peripheral implements USB Type-C™ specification revision 2.1, including support for Structured VDMs, SOP′/SOP″ messages, VCONN power switching, and hard reset detection. It requires external transceivers for full PD contract negotiation but handles all link-layer protocol processing internally.
STM32G473MCT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 80-LQFP
- Series:
- STM32G4
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, TRNG, WDT
- Number of I/O:
- 66
- 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 41x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473MCT3 FAQ
1.How can I place an order for STM32G473MCT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473MCT3 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 STM32G473MCT3 reliable?
The price and inventory of STM32G473MCT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473MCT3 is usually 5 days.
3.What payment methods are accepted for STM32G473MCT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473MCT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473MCT3?
STM32G473MCT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473MCT3 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 STM32G473MCT3?
For technical support, including STM32G473MCT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473MCT3 requirements.
6.How does Aetrix verify that STM32G473MCT3 is sourced from the original manufacturer or authorized distributors?
All STM32G473MCT3 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 STM32G473MCT3 meets industry standards.
7.What is the process for return or replacement of STM32G473MCT3?
All STM32G473MCT3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473MCT3, 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 STM32G473MCT3 part is unused and in its original packaging.
Return procedure for STM32G473MCT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G473MCT3 Tags
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