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STMicroelectronics STM32G473RBT6TR
- Part No.:
- STM32G473RBT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G473RBT6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,986
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Product details
Overview
STM32G473RBT6TR 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 DAC channels, six rail-to-rail op-amps, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473RBT6TR datasheet, STM32G473RBT6TR pinout, STM32G473RBT6TR application, or STM32G473RBT6TR equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, 5 V-tolerant GPIOs (up to 107), FDCAN support for flexible data-rate automotive/industrial networks, UCPD interface for USB Type-C™ power delivery, and hardware-accelerated trigonometric and filtering operations.
Technical Context
The STM32G473RBT6TR implements an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from Flash memory, paired with a Memory Protection Unit (MPU) and securable memory areas including PCROP and 1 KB OTP. Its interconnect matrix supports concurrent high-bandwidth peripheral access without bus contention.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a USB 2.0 full-speed interface with LPM/BCD, and a dedicated USB Type-C™/Power Delivery controller (UCPD) with VBUS monitoring and role swap support - all synchronized via a multi-source clock system with 4–48 MHz crystal input, 32 kHz RTC oscillator, and internal RC options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M4 with FPU and DSP instructions, 170 MHz max frequency (213 DMIPS) |
| Memory | 512 KB Flash (dual-bank, ECC, PCROP), 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, 7 comparators |
| Math Acceleration | CORDIC engine for sin/cos/tan/sqrt/log/exp; FMAC for FIR/IIR filter coefficient computation |
| 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, 1 × UCPD |
| Package & I/O | LQFP64 (10 × 10 mm), 51 GPIOs (47 with 5 V tolerance), 16-channel DMA, 128 KB total RAM |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog domain for precision ADC/DAC reference stability |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling between digital switching and analog signal paths |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 51 configurable pins; most support 5 V tolerance, external interrupts, and multiple alternate functions |
| NRST | Active-low reset | Hardware reset input with internal pull-up; compatible with external reset supervisors and push-button circuits |
| BOOT0 | Boot mode selection | High at power-up enables system memory bootloader; low selects user Flash memory execution |
| OSC_IN / OSC_OUT | External crystal interface | Supports 4–48 MHz quartz crystals for precise clock source; optional bypass for external clock input |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-time Accelerator (ART) | Enables 0-wait-state execution from Flash at 170 MHz, eliminating instruction fetch stalls in real-time loops |
| CORDIC + FMAC co-processors | Offloads trigonometric and filtering computations from CPU, reducing latency in motor control and sensor fusion |
| FDCAN with flexible data rate | Supports up to 5 Mbit/s payload in CAN FD frames, enabling higher bandwidth diagnostics and firmware updates over CAN bus |
| USB Type-C™ Power Delivery (UCPD) | Integrated UCPD PHY and protocol engine handles VCONN switching, role negotiation, and PD messaging without external IC |
| Routine Booster (CCM SRAM) | 32 KB tightly coupled SRAM on both instruction and data buses with parity protection - ideal for time-critical ISR and control algorithms |
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 industrial drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, PWM generation, current sensing, and fault protection with sub-microsecond interrupt response. Use Value: Advanced timers with dead-time insertion and emergency stop, plus CORDIC acceleration reduce CPU load by >40% versus software-only trigonometry. |
Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation, active PFC, and communication telemetry. IC Role / Device Role / Timing Role: System-on-chip managing PWM modulation, voltage/current loop control, thermal monitoring, and PMBus/UART reporting. Use Value: Dual-bank Flash allows seamless firmware updates during operation; 12-bit ADCs with hardware oversampling achieve <1% THD in voltage feedback loops. |
| USB-C Power Delivery Hub | Smart Industrial Sensor Node |
Use Scenario: Multi-port USB-C docking station negotiating power contracts, data routing, and display alt-mode handshaking. IC Role / Device Role / Timing Role: UCPD controller coordinating VBUS management, CC line detection, PD policy engine, and USB 2.0 data switching. Use Value: Integrated UCPD eliminates need for discrete PD controller; hardware CRC and secure boot support enable certified PD implementations. |
Use Scenario: Battery-powered wireless sensor node collecting temperature, pressure, and vibration data in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power host managing analog sensor conditioning, BLE/Wi-Fi coexistence, and scheduled wake-up via LPTIM and RTC alarms. Use Value: Shutdown mode consumes <100 nA; internal VREFBUF provides stable 2.048 V reference for precision ADC measurements across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBU6 | Same G4 architecture but 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, LQFP32 package (32 pins) | Suitable for cost-sensitive, lower-peripheral-count designs like basic power converters or simple motor drivers | Select when math acceleration and high-resolution analog are not required; reduces BOM count and PCB area |
| STM32F303RET6 | Cortex-M4 core at 72 MHz, 512 KB Flash, no FDCAN or UCPD, older analog IP (no FMAC/CORDIC), LQFP64 | Legacy replacement path for existing F3-based designs needing modest upgrade in Flash/SRAM but no USB-C or CAN FD | Choose only for migration continuity; lacks G4's real-time determinism, math engines, and modern interfaces |
Compared with STM32G431KBU6, the STM32G473RBT6TR delivers 2.4× higher compute throughput, integrated USB-C PD control, and hardware math acceleration - critical for next-gen digital power and motor control. Versus STM32F303RET6, it adds FDCAN, UCPD, ART accelerator, and enhanced analog resolution - enabling feature-rich, future-proof designs.
Availability
STM32G473RBT6TR is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, USB-C power delivery hubs, and smart sensor nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for STM32G473RBT6TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing and broad industrial certification coverage.
The STM32G4 series targets high-performance, analog-rich embedded applications - combining real-time deterministic control, mathematical acceleration, and mixed-signal integration for digital power, motor control, and USB-C ecosystems.
FAQ
What is the maximum operating frequency and corresponding performance metric?
The STM32G473RBT6TR operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved using the Adaptive Real-time Accelerator (ART) for zero-wait-state Flash execution and includes full DSP instruction support and single-cycle MAC operations.
Does this MCU support USB Type-C™ Power Delivery negotiation?
Yes - the STM32G473RBT6TR integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller with hardware PHY, VBUS monitoring, CC line detection, and full PD 3.0 policy engine support. It handles role swap, VCONN switching, and PD messaging without external components.
How many analog-to-digital converter channels does it provide, and what is their resolution and speed?
It features five independent 12-bit ADCs supporting up to 42 external channels total. Each achieves 0.25 µs conversion time (4 MSPS), with hardware oversampling enabling effective resolutions up to 16 bits. Input range is 0 to 3.6 V, referenced to VREFINT or external VREF+.
What packaging and thermal specifications apply to the STM32G473RBT6TR?
This part uses the LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad. It is rated for industrial temperature range (–40°C to +85°C) and has a maximum junction temperature of +125°C. Thermal resistance θJA is 40°C/W under standard JEDEC 2-layer board conditions.
STM32G473RBT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 52
- Program Memory Size:
- 128KB (128K 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 26x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473RBT6TR FAQ
1.How can I place an order for STM32G473RBT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473RBT6TR 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 STM32G473RBT6TR reliable?
The price and inventory of STM32G473RBT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473RBT6TR is usually 5 days.
3.What payment methods are accepted for STM32G473RBT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473RBT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473RBT6TR?
STM32G473RBT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473RBT6TR 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 STM32G473RBT6TR?
For technical support, including STM32G473RBT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473RBT6TR requirements.
6.How does Aetrix verify that STM32G473RBT6TR is sourced from the original manufacturer or authorized distributors?
All STM32G473RBT6TR 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 STM32G473RBT6TR meets industry standards.
7.What is the process for return or replacement of STM32G473RBT6TR?
All STM32G473RBT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473RBT6TR, 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 STM32G473RBT6TR part is unused and in its original packaging.
Return procedure for STM32G473RBT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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