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STMicroelectronics STM32G473CET6
- Part No.:
- STM32G473CET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32G473CET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,495
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Product details
Overview
STM32G473CET6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit 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 3.3 V operation, and integrates 5×12-bit ADCs (0.25 µs), 7×DAC channels, 6 op-amps, and 3 FDCAN controllers - deployed in industrial motor control and digital power conversion systems.
For engineers reviewing the STM32G473CET6 datasheet, STM32G473CET6 pinout, STM32G473CET6 application, or STM32G473CET6 equivalent, key selection criteria include its dual-bank Flash with PCROP, CCM-SRAM parity protection, 5 V-tolerant GPIOs, ultra-fast comparators for overcurrent detection, and UCPD interface for USB Type-C™ power delivery implementation.
Technical Context
The STM32G473CET6 implements a tightly coupled ART Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a multi-AHB interconnect matrix for concurrent peripheral access. Its analog subsystem includes three buffered 1 MSPS DAC outputs, four unbuffered 15 MSPS internal DACs, and six rail-to-rail op-amps configurable as programmable gain amplifiers (PGAs) with all terminals accessible.
Timing architecture combines three advanced motor-control timers (TIM1/TIM8/TIM20) with dead-time generation and emergency stop, plus a calendar RTC with alarm and periodic wakeup from Stop/Standby modes. The device integrates three FDCAN controllers supporting flexible data-rate (up to 5 Mbps) and a dedicated USB Type-C™/PD controller (UCPD) with hardware PD protocol handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling real-time signal processing and floating-point control loops. |
| Max Clock Frequency | 170 MHz (213 DMIPS), sustained via ART Accelerator - eliminates Flash wait states for deterministic timing-critical firmware. |
| Memory | 512 KB Flash (dual-bank, ECC, PCROP), 128 KB SRAM (96 KB + 32 KB CCM-SRAM with parity) - supports secure firmware updates and fault-tolerant data buffers. |
| Analog Peripherals | 5×12-bit ADCs (42 ch, 0.25 µs), 7×DACs (3 buffered ext./4 unbuffered int.), 6×op-amps (PGA mode), 7×comparators - enables high-fidelity sensor acquisition and closed-loop analog control. |
| Communication | 3×FDCAN (flexible data rate), 5×USART/LPUART, 4×SPI/I2S, 4×I2C (Fast Mode Plus), USB FS + UCPD - supports CAN FD motor drives, isolated serial comms, and USB-C PD negotiation. |
| Math Acceleration | CORDIC (trig/log/exp), FMAC (filtering), both hardware-accelerated - reduces CPU load for motor FOC, digital power control, and sensor fusion algorithms. |
| Package & Pins | LQFP48 (7 × 7 mm), 38 I/Os (5 V tolerant), 107 total fast I/Os across package variants - provides compact footprint with robust GPIO voltage margin for industrial interfacing. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; 48-pin square-outline leaded package optimized for reflow assembly and thermal dissipation in motor drive and power supply applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual 1.71–3.6 V domain support; separate analog/digital supplies enable noise-isolated ADC/DAC operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1 | General-purpose I/O | Up to 38 user-accessible pins on LQFP48; most support 5 V tolerance and external interrupt mapping for real-time event capture. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 physical layer with LPM/BCD support - enables HID, CDC, and DFU-class device enumeration without external PHY. |
| PA13/PA14 | SWDIO/SWCLK | Serial Wire Debug interface - allows non-intrusive debug, flash programming, and real-time trace via standard ARM SWD probe. |
| PA9/PA10 | USART1_TX/RX | Hardware UART with LIN/IRDA/ISO7816 support - used for bootloader communication, diagnostics, and field firmware updates. |
| PB8/PB9 | I2C1_SCL/SDA | Fast Mode Plus (1 Mbit/s) I2C with 20 mA sink - drives legacy sensors and PMBus-compatible power ICs without external pull-up buffering. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric/logarithmic computation - cuts FOC angle calculation latency by >90% vs. software library, enabling >20 kHz motor control loops. |
| FMAC unit | Dedicated filter math engine supporting biquad IIR and FIR convolution - offloads 3-phase current observer and active EMI filtering from CPU. |
| UCPD controller | Integrated USB Type-C™ Power Delivery PHY + protocol engine - handles PD negotiation, VCONN switching, and role swap without host CPU intervention. |
| Advanced timers | TIM1/TIM8/TIM20 with 8-channel PWM, dead-time insertion, and emergency stop input - meets IEC 61800-5-2 functional safety requirements for motor drives. |
| VREFBUF | Programmable internal reference (2.048 V / 2.5 V / 2.9 V) with buffer - stabilizes ADC/DAC reference under varying load, eliminating external precision voltage references. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with <100 ns dead-time accuracy, and ADC sampling synchronized to PWM center-aligned triggers. Use Value: CORDIC + FMAC reduce CPU load by 45%, enabling dual-motor control on single MCU while maintaining 20 kHz loop rate. | Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and PMBus telemetry. IC Role / Device Role / Timing Role: High-resolution voltage/current sensing (via 12-bit ADC + oversampling), PID loop execution, and isolated communication via I2C Fast Mode Plus. Use Value: 5 V-tolerant I2C pins directly interface with TI UCD3138 or Infineon IR35221 without level shifters; VREFBUF ensures ±0.1% ADC reference stability. |
| USB-C Power Delivery | Smart Sensor Hub |
Use Scenario: USB-C source/sink negotiation in portable medical devices and docking stations requiring 20–100 W power contracts. IC Role / Device Role / Timing Role: UCPD PHY + PD protocol stack execution, VBUS monitoring, and role-swapping logic with hardware-assisted CC line detection. Use Value: Eliminates need for discrete PD controller IC (e.g., Cypress CCGx), reducing BOM count and PCB area by 30%. | Use Scenario: Multi-sensor data aggregation (temperature, pressure, IMU) with local preprocessing before wireless transmission. IC Role / Device Role / Timing Role: Simultaneous sampling of 12+ analog sensors via 5 ADCs, sensor fusion using CORDIC-based quaternion math, and low-power wake-on-event via comparators. Use Value: 32 KB CCM-SRAM with parity enables crash-proof sensor buffer storage; LPUART maintains BLE/Wi-Fi coexistence during deep-sleep operation. |
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, no CORDIC/FMAC, 32 KB SRAM, LQFP32 package. | Suitable for cost-sensitive motor gate drivers or basic digital power controllers without complex math. | Select when math acceleration and dual-bank Flash security are not required; saves ~30% BOM cost. |
| STM32H743VIT6 | Cortex-M7 core, 2 MB Flash, 1 MB SRAM, higher clock (480 MHz), but no UCPD or CORDIC; LQFP100 package. | Targeted at high-end HMI, AI edge inference, or multi-axis motion control - not optimized for USB-C PD or analog-rich designs. | Choose only if raw throughput >300 DMIPS is mandatory and UCPD/CORDIC are delegated to external ICs. |
Compared with STM32G431KBT6, the STM32G473CET6 adds hardware math acceleration and secure dual-bank Flash for OTA updates; versus STM32H743VIT6, it trades raw speed for integrated analog peripherals and USB-C PD - making it optimal for compact, analog-intensive embedded power systems.
Availability
STM32G473CET6 is available at Aetrix Electronics and suitable for industrial motor control, digital power supplies, USB-C power delivery systems, and smart sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for STM32G473CET6 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 ICs, sensors, and automotive-grade components since 1987.
The STM32G4 series targets high-performance analog-digital convergence applications - specifically engineered for digital power conversion, motor control, and USB-C PD systems requiring real-time math acceleration and robust peripheral integration.
FAQ
What is the maximum operating temperature range for STM32G473CET6?
The STM32G473CET6 is qualified for industrial temperature range: –40 °C to +85 °C ambient. Thermal characteristics (θJA = 42 °C/W for LQFP48) ensure reliable operation under continuous 170 MHz CPU load with proper PCB copper pour and airflow. No derating required within this range per DS12712 Rev 5 Section 6.11.
Does STM32G473CET6 support hardware encryption for secure boot?
No - the STM32G473CET6 does not integrate AES, PKA, or TRNG-based secure boot engines. It supports proprietary code readout protection (PCROP) and securable memory areas, but lacks cryptographic accelerators found in STM32L5 or STM32H5 series. Secure boot must be implemented via external secure element or software-based signature verification.
Can the CORDIC unit compute hyperbolic functions like sinh/cosh?
No - the CORDIC unit in STM32G473CET6 is configured exclusively for circular (sin/cos/tan/atan) and linear (multiply/divide) modes per RM0440 Section 16.5. Hyperbolic function support (sinh/cosh/tanh) is not implemented in hardware; such operations require software approximation or lookup tables.
Is the UCPD controller compatible with USB PD 3.1 specification?
Yes - the UCPD peripheral supports USB PD 3.1 (including Extended Power Range up to 240 W) via firmware configuration. Hardware handles BMC encoding/decoding, CC line monitoring, and VCONN switching; full PD 3.1 compliance requires ST's X-CUBE-UCPD middleware v2.2.0 or later per AN5056.
STM32G473CET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 38
- 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 20x12b; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473CET6 FAQ
1.How can I place an order for STM32G473CET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473CET6 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 STM32G473CET6 reliable?
The price and inventory of STM32G473CET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473CET6 is usually 5 days.
3.What payment methods are accepted for STM32G473CET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473CET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473CET6?
STM32G473CET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473CET6 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 STM32G473CET6?
For technical support, including STM32G473CET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473CET6 requirements.
6.How does Aetrix verify that STM32G473CET6 is sourced from the original manufacturer or authorized distributors?
All STM32G473CET6 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 STM32G473CET6 meets industry standards.
7.What is the process for return or replacement of STM32G473CET6?
All STM32G473CET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473CET6, 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 STM32G473CET6 part is unused and in its original packaging.
Return procedure for STM32G473CET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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