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STMicroelectronics STM32G473RET3TR
- Part No.:
- STM32G473RET3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G473RET3TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,596
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Product details
Overview
STM32G473RET3TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 512 KB Flash (ECC-enabled), 128 KB SRAM (including 32 KB CCM-SRAM with parity), and integrated analog peripherals including five 12-bit ADCs (42-channel, 0.25 µs conversion), seven 12-bit DACs, six rail-to-rail op-amps, and three FDCAN controllers. It operates up to 170 MHz (213 DMIPS) and targets motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473RET3TR datasheet, STM32G473RET3TR pinout, STM32G473RET3TR application, or STM32G473RET3TR equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, CORDIC/FMAC hardware accelerators for real-time math, 5 V-tolerant I/Os, UCPD interface for USB Type-C™ PD, and LQFP64 package compatibility with industrial-grade thermal performance.
Technical Context
The STM32G473RET3TR implements a tightly coupled Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals via multiple AHB/APB buses.
It integrates dedicated hardware accelerators - CORDIC for trigonometric computation and FMAC for FIR/IIR filtering - alongside three independent FDCAN controllers supporting flexible data-rate (up to 5 Mbps) and time-triggered communication, making it suitable for deterministic embedded control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency, 213 DMIPS performance |
| Flash Memory | 512 KB with ECC, dual-bank architecture enabling read-while-write and secure firmware updates |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM-SRAM (parity-checked, instruction/data bus) |
| Analog Peripherals | 5 × 12-bit ADCs (42 channels, 0.25 µs), 7 × 12-bit DACs (3 buffered external @ 1 MSPS), 6 op-amps (PGA mode supported) |
| 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, USB 2.0 FS, SAI, UCPD for USB Type-C™ PD |
| Math Acceleration | CORDIC engine for sin/cos/tan/log/exp; FMAC unit for hardware-accelerated digital filtering |
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 | Power supply inputs | Core/analog domain supply (1.71–3.6 V); separate VDDA enables precision analog operation |
| VSS, VSSA | Ground references | Digital/analog ground separation reduces noise coupling into ADC/DAC paths |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 107 fast I/Os; many support 5 V tolerance, external interrupts, and configurable alternate functions |
| NRST | Reset input | Active-low reset with internal pull-up; compatible with external reset supervisors and push-button recovery |
| BOOT0 | Boot mode select | Configures boot source (system memory, Flash, or SRAM) at power-on; requires external pull-down for normal Flash execution |
| OSC_IN / OSC_OUT | External crystal interface | Supports 4–48 MHz crystal oscillator for precise clocking; optional HSE bypass mode |
| UCPD1_CC1 / UCPD1_CC2 | USB Type-C™ CC line interface | Dedicated pins for USB Power Delivery communication and cable orientation detection |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric/logarithmic computation in <100 ns per operation, offloading CPU in motor control and sensor fusion |
| FMAC filter engine | Programmable 32-bit MAC unit supporting real-time FIR/IIR filtering without CPU intervention |
| Dual-bank Flash with PCROP | Enables seamless firmware updates and secure code protection via Proprietary Code Read-Out Protection |
| UCPD peripheral | Integrated USB Type-C™ Power Delivery controller eliminating need for external PD IC in compact power adapters |
| Advanced motor timers | TIM1/TIM8/TIM20 support complementary PWM outputs, programmable dead time, and hardware emergency shutdown for BLDC/PMSM drives |
Applications
| Industrial Motor Drives | Digital Power Supplies |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 6-channel complementary PWM with synchronized ADC sampling and hardware dead-time insertion. Use Value: CORDIC/FMAC acceleration reduces CPU load by >40% versus software-only math; advanced timers ensure sub-100 ns PWM edge alignment. | Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and fault logging. IC Role / Device Role / Timing Role: Primary digital power controller managing PWM generation, current/voltage loop control, and communication with PMBus host. Use Value: Dual-bank Flash allows safe firmware update during operation; 12-bit ADCs with hardware oversampling achieve ±0.5% voltage measurement accuracy. |
| Smart Sensor Nodes | USB-C Power Adapters |
Use Scenario: Battery-powered condition monitoring nodes with multi-sensor fusion (temperature, vibration, current). IC Role / Device Role / Timing Role: Low-power system-on-chip handling sensor acquisition, local analytics, and wireless transmission scheduling. Use Value: Stop/standby modes draw <1.5 µA; internal VREFBUF provides stable 2.048 V reference for high-precision ADC measurements. | Use Scenario: Compact 65 W USB-C PD adapter with programmable output voltage and sink/source negotiation. IC Role / Device Role / Timing Role: Integrated UCPD controller and ARM core manage PD protocol stack, safety monitoring, and synchronous rectifier timing. Use Value: On-chip UCPD eliminates external PD controller; 170 MHz CPU handles full PD 3.0 policy engine with <10 ms response latency. |
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 series, but 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, LQFP32 package | Suitable for cost-sensitive, lower-complexity motor control where hardware math acceleration is not required | Select when BOM cost reduction outweighs need for advanced analog/math features |
| STM32H743VIT6 | Cortex-M7 core, 2000 DMIPS, 2 MB Flash, dual-core option, no UCPD, LQFP100 package | Targets high-end industrial automation requiring Linux-capable RTOS, Ethernet, and complex GUI rendering | Choose only if raw processing throughput and peripheral bandwidth exceed G4 capabilities |
Compared with STM32G431KBU6, the STM32G473RET3TR delivers 4× more Flash, hardware math acceleration, and USB-C PD support-critical for feature-rich digital power and motor control. Versus STM32H743VIT6, it offers superior analog integration and UCPD in a smaller footprint at lower cost, though with less compute headroom.
Availability
STM32G473RET3TR is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart sensor nodes, and USB-C power adapters requiring stable component supply across extended product lifecycles.
Supply support for STM32G473RET3TR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, analog-rich embedded applications-specifically digital power conversion, motor control, and USB-C PD systems-by integrating specialized hardware accelerators and robust mixed-signal peripherals on a single die.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32G473RET3TR runs at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS), measured under conditions of zero-wait-state Flash execution enabled by the ART Accelerator. This frequency is sustained across the full industrial temperature range (–40 °C to +85 °C) with VDD ≥ 2.7 V.
Does this MCU support USB Type-C™ Power Delivery without external components?
Yes-the STM32G473RET3TR integrates a full USB Type-C™ Power Delivery (UCPD) controller with physical layer transceivers, CC line drivers/receivers, and PD protocol state machine support. It eliminates the need for discrete PD controllers in designs targeting USB-C PD sink/source applications up to 100 W.
How does the dual-bank Flash architecture improve firmware reliability?
Dual-bank Flash enables true read-while-write operation: while one bank executes code, the other can be erased and reprogrammed-allowing atomic firmware updates without halting real-time control. Combined with PCROP and hardware CRC, it ensures secure, fail-safe over-the-air (OTA) updates in mission-critical systems.
Which analog features distinguish the G473 from earlier G4-series MCUs?
The STM32G473RET3TR adds three FDCAN interfaces (vs. one in G431), expands ADC count to five units (42 total channels), increases DAC count to seven channels (3 buffered external), and introduces the UCPD peripheral-making it uniquely suited for USB-C PD + motor control convergence applications not possible with prior G4 variants.
STM32G473RET3TR 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:
- 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 26x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473RET3TR FAQ
1.How can I place an order for STM32G473RET3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473RET3TR 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 STM32G473RET3TR reliable?
The price and inventory of STM32G473RET3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473RET3TR is usually 5 days.
3.What payment methods are accepted for STM32G473RET3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473RET3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473RET3TR?
STM32G473RET3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473RET3TR 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 STM32G473RET3TR?
For technical support, including STM32G473RET3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473RET3TR requirements.
6.How does Aetrix verify that STM32G473RET3TR is sourced from the original manufacturer or authorized distributors?
All STM32G473RET3TR 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 STM32G473RET3TR meets industry standards.
7.What is the process for return or replacement of STM32G473RET3TR?
All STM32G473RET3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473RET3TR, 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 STM32G473RET3TR part is unused and in its original packaging.
Return procedure for STM32G473RET3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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