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STMicroelectronics STM32G473QET6TR
- Part No.:
- STM32G473QET6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
STM32G473QET6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,302
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Product details
Overview
STM32G473QET6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DACs, six operational amplifiers, and three FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473QET6TR datasheet, STM32G473QET6TR pinout, STM32G473QET6TR application, or STM32G473QET6TR equivalent, key selection criteria include its CORDIC/FMAC math accelerators for real-time control loops, dual-bank Flash for seamless firmware updates, 5 V-tolerant I/Os on selected pins, and UCPD interface for USB Type-C™ power delivery implementation.
Technical Context
The STM32G473QET6TR implements an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from Flash memory, paired with a Memory Protection Unit (MPU) and DSP instruction set for deterministic embedded control. Its interconnect matrix supports concurrent high-bandwidth peripheral access without bus contention.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (FD mode up to 5 Mbit/s), a dedicated USB Type-C™/Power Delivery controller (UCPD), and hardware cryptographic acceleration via RNG and CRC units - all operating across 1.71–3.6 V supply range with multiple low-power modes (Stop, Standby, Shutdown).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency (213 DMIPS), MPU, DSP extensions |
| Memory | 512 KB Flash (ECC, dual-bank read-while-write), 96 KB SRAM + 32 KB CCM SRAM (parity-checked) |
| Analog Peripherals | 5 × 12-bit ADCs (42 ch, 0.25 µs), 7 × 12-bit DACs (3 buffered ext./4 unbuffered int.), 6 op-amps (PGA mode), 7 comparators |
| Timers & Control | 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 (Fast Mode Plus), 4 × SPI, 1 × SAI, 1 × USB FS (LPM/BCD), 1 × UCPD |
| Math Acceleration | CORDIC engine for trigonometric functions; FMAC for FIR/IIR filter computation - offloads CPU in real-time signal processing |
| Package & Pin Count | UFQFPN48 (7 × 7 mm, 0.5 mm pitch), 48-pin quad flat no-lead with exposed thermal pad |
Pinout & Package
STM32G473QET6TR uses the UFQFPN48 package: 7 mm × 7 mm body, 0.5 mm lead pitch, exposed thermal pad (EP) on underside for enhanced thermal dissipation in compact motor drive or power supply designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | 1.71–3.6 V operation; separate analog domain enables precision ADC/DAC performance |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling between digital switching and analog conversion paths |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors or push-button circuits |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1 | General-purpose I/Os | Up to 107 fast I/Os; many support 5 V tolerance, external interrupts, and configurable alternate functions |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins with internal pull-ups; no external components required |
| PD0/PD1 | FDCAN1_RX/FDCAN1_TX | Direct CAN FD physical layer interface supporting flexible data-rate up to 5 Mbit/s |
| PF0/PF1 | UCPD1_CC1/UCPD1_CC2 | USB Type-C™ configuration channel pins for cable orientation detection and power role negotiation |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric engine enabling real-time angle/sine/cosine calculation without floating-point library overhead |
| FMAC unit | Dedicated filter math accelerator supporting 32-bit MAC operations for high-speed FIR/IIR filtering in motor control or audio preprocessing |
| Dual-bank Flash | Enables live firmware update: one bank executes while the other receives new code - critical for field-deployed industrial equipment |
| UCPD controller | Integrated USB Power Delivery PHY and protocol engine - eliminates need for external UCPD IC in USB-C power sink/source designs |
| Advanced timer system | Three 16-bit advanced timers (TIM1/TIM8/TIM20) with complementary PWM outputs, programmable dead time, and emergency shutdown inputs for IGBT/MOSFET gate driving |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors or robotics actuators. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, PWM generation, current sensing, and fault protection logic in sub-microsecond timing windows. Use Value: CORDIC and FMAC accelerate Clarke/Park transforms and PI regulator math; advanced timers deliver precise 3-phase PWM with synchronized ADC sampling and dead-time insertion. |
Use Scenario: Digital AC-DC or DC-DC power converters (e.g., telecom rectifiers, server PSUs) requiring adaptive voltage regulation and communication. IC Role / Device Role / Timing Role: System-on-chip managing PWM modulation, voltage/current loop control, thermal monitoring, and PMBus/UCPD communication. Use Value: Dual-bank Flash allows safe firmware updates during operation; UCPD enables native USB-C PD negotiation; 12-bit DACs provide precise reference voltages for feedback loops. |
| Programmable Logic Controller (PLC) I/O Module | Medical Sensor Hub |
Use Scenario: Compact DIN-rail mounted I/O expansion module with analog input, digital output, and CAN FD fieldbus connectivity. IC Role / Device Role / Timing Role: Central processor handling sensor acquisition, discrete I/O scanning, CAN FD messaging, and diagnostics over industrial Ethernet gateway interface. Use Value: Five independent ADCs support simultaneous multi-channel analog input sampling; 3× FDCAN interfaces enable redundant fieldbus links; 5 V-tolerant GPIOs simplify interfacing with legacy 24 V industrial sensors. |
Use Scenario: Portable patient monitor aggregating ECG, SpO₂, temperature, and motion data with Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal conditioning hub performing analog front-end amplification, filtering, ADC conversion, and secure data packaging before wireless transmission. Use Value: Six rail-to-rail op-amps configure as instrumentation amps or active filters; internal VREFBUF provides stable 2.048 V/2.5 V/2.9 V references for precision ADC/DAC operation; RNG supports cryptographic key generation for HIPAA-compliant data encryption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBT6 | Same G4 series core but 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, single-bank Flash, fewer ADC/DAC channels | Suitable for cost-sensitive motor control or basic digital power where math acceleration and dual-bank update are not required | Select when BOM cost reduction is prioritized over real-time math throughput and firmware update safety |
| STM32H743VIT6 | Higher-tier dual-core (Cortex-M7 + M4), 2 MB Flash, 1 MB RAM, no CORDIC/FMAC but includes L1 cache and DWT trace; 100-pin LQFP | Targeted at complex HMI, AI edge inference, or multi-protocol gateways needing higher throughput and memory bandwidth | Choose when application demands >200 MHz CPU performance, large buffer memory, or dual-core task partitioning - not for direct drop-in replacement |
Compared with STM32G431KBT6, the STM32G473QET6TR delivers 4× more Flash, hardware math acceleration, and dual-bank update capability essential for certified industrial firmware; versus STM32H743VIT6, it offers superior analog integration and lower power consumption in mid-range real-time control tasks.
Availability
STM32G473QET6TR is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, PLC I/O modules, and medical sensor hubs requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade sourcing.
Supply support for STM32G473QET6TR 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 management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, cost-effective real-time control applications - combining rich analog integration, math acceleration, and robust communication interfaces for digital power, motor control, and smart sensing.
FAQ
What is the maximum operating frequency and associated performance metric of the STM32G473QET6TR?
The STM32G473QET6TR operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS), measured using the ARM Dhrystone benchmark v2.1 under conditions of zero-wait-state Flash execution enabled by the ART Accelerator. Its FPU supports IEEE 754 single-precision floating-point operations, and the MPU ensures memory access isolation for safety-critical tasks.
Does the STM32G473QET6TR support USB Type-C™ Power Delivery, and how is it implemented?
Yes - the STM32G473QET6TR integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0 specification. It handles CC line monitoring, SOP message parsing, VCONN switching, and policy engine execution in hardware, eliminating the need for external UCPD PHY or MCU-based protocol stacks. Pins PF0 and PF1 serve as CC1/CC2 interfaces.
How does the dual-bank Flash architecture benefit firmware updates in field-deployed systems?
The 512 KB Flash is split into two independent banks (Bank 1 and Bank 2), allowing simultaneous read and write operations. During firmware update, the active bank continues executing application code while the inactive bank receives new firmware via bootloader - enabling zero-downtime updates critical for industrial automation, medical devices, and infrastructure equipment requiring high uptime and functional safety compliance.
Which analog peripherals make the STM32G473QET6TR especially suited for precision motor control applications?
The device integrates five 12-bit ADCs with 0.25 µs conversion time and up to 42 channels, supporting simultaneous sampling across multiple motor phases; seven 12-bit DACs (three buffered external outputs at 1 MSPS); six rail-to-rail op-amps usable in PGA mode for current shunt amplification; and seven ultra-fast comparators for overcurrent protection - all synchronized via hardware triggers from advanced timers for deterministic control loop timing.
STM32G473QET6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 128-LQFP
- Series:
- STM32G4
- Packaging:
- Tape & Reel (TR)
- 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:
- 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 SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473QET6TR FAQ
1.How can I place an order for STM32G473QET6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473QET6TR 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 STM32G473QET6TR reliable?
The price and inventory of STM32G473QET6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473QET6TR is usually 5 days.
3.What payment methods are accepted for STM32G473QET6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473QET6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473QET6TR?
STM32G473QET6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473QET6TR 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 STM32G473QET6TR?
For technical support, including STM32G473QET6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473QET6TR requirements.
6.How does Aetrix verify that STM32G473QET6TR is sourced from the original manufacturer or authorized distributors?
All STM32G473QET6TR 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 STM32G473QET6TR meets industry standards.
7.What is the process for return or replacement of STM32G473QET6TR?
All STM32G473QET6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473QET6TR, 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 STM32G473QET6TR part is unused and in its original packaging.
Return procedure for STM32G473QET6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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