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STMicroelectronics STM32G473RET6
- Part No.:
- STM32G473RET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G473RET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
STM32G473RET6 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. It targets motor control, digital power conversion, and industrial sensing systems requiring real-time math acceleration and high-precision analog signal chain integration.
For engineers reviewing the STM32G473RET6 datasheet, STM32G473RET6 pinout, STM32G473RET6 application, or STM32G473RET6 equivalent, this page delivers verified technical context, validated pin functions for LQFP64 package, confirmed analog/digital peripheral specifications, and direct alternative part comparisons - all grounded in ST's DS12712 Rev 5 production data.
Technical Context
The STM32G473RET6 implements an Arm Cortex-M4 core with hardware FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash. Its dual-bank Flash supports read-while-write operations and PCROP-based code protection, while the CCM SRAM (32 KB) provides parity-checked instruction/data storage on dedicated buses.
It integrates two math accelerators - CORDIC for trigonometric computation and FMAC for filter coefficient processing - alongside a rich analog subsystem: six rail-to-rail op-amps (configurable as PGAs), seven DAC channels (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), and five independent 12-bit ADCs with up to 42 channels and hardware oversampling up to 16-bit resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency (213 DMIPS), MPU, DSP instructions |
| Memory | 512 KB Flash (ECC, dual-bank, PCROP), 96 KB SRAM + 32 KB CCM SRAM (parity-checked) |
| Analog Peripherals | 5 × 12-bit ADCs (0.25 µs, up to 42 ch, 16-bit w/oversampling), 7 × 12-bit DACs (3 buffered ext., 4 unbuffered int.) |
| Math Acceleration | CORDIC engine for sin/cos/tan/log/exp; FMAC for FIR/IIR filter coefficient computation |
| Timers & Control | 14 timers including 3 × 16-bit advanced motor control timers (dead time, emergency stop), 2 × 32-bit general-purpose |
| Communication | 3 × FDCAN (flexible data rate), 5 × USART/UART, 4 × I²C (Fast Mode Plus), 4 × SPI, USB FS, UCPD, SAI |
| Supply & Power | 1.71–3.6 V operation; low-power modes (sleep/stop/standby/shutdown); VBAT support for RTC/backup registers |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 64-pin configuration supporting full peripheral remapping via alternate function registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V input; separate analog domain ensures ADC/DAC reference stability |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling into sensitive analog circuits |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 fast I/Os; most 5 V tolerant; all mappable to EXTI lines for wake-up/interrupt |
| PA1, PA2, PA3, etc. | ADC/DAC/Op-amp channel inputs/outputs | Direct routing to analog peripherals enables compact signal chain layout without external routing |
| PC13–PC15 | RTC oscillator pins | Support 32.768 kHz crystal; calibrated internal RC available as fallback |
| PA11/PA12 | USB D+/D− | Full-speed USB 2.0 interface with LPM and BCD support; no external PHY required |
| PD0/PD1 | HSE oscillator inputs | Support 4–48 MHz external crystal; critical for precise clock generation in motor control timing |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC + FMAC co-processors | Offload CPU from real-time trigonometric and filtering computations - essential for servo loop closure & PFC algorithms |
| Triple FDCAN controllers | Enable multi-node CAN FD networks in industrial automation or EV battery management without external transceivers |
| 6 programmable op-amps | All terminals accessible; configurable as PGA with gain up to 32× - eliminates need for external instrumentation amps |
| Internal VREFBUF | Provides stable 2.048 V / 2.5 V / 2.9 V references for ADC/DAC - removes external voltage reference ICs |
| UCPD interface | Integrated USB Type-C™ and Power Delivery controller - supports source/sink role negotiation without companion IC |
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. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with <100 ns dead-time precision, ADC sampling synchronized to switching edges. Use Value: CORDIC computes sine/cosine for rotor angle transformation; FMAC handles current-loop IIR filters; 3 advanced timers deliver 6-channel complementary PWM with fault protection. |
Use Scenario: Bidirectional AC/DC and DC/DC converters (e.g., telecom rectifiers, solar inverters). IC Role / Device Role / Timing Role: Digital controller managing PFC + LLC stages, measuring line voltage/current, regulating output via isolated feedback. Use Value: Five ADCs simultaneously sample multiple analog signals (Vin, Iin, Vout, temperature); 7 DACs generate precise reference voltages and bias points; op-amps condition sensor outputs on-chip. |
| Programmable Logic Controller (PLC) | Medical Sensor Hub |
Use Scenario: Modular I/O base unit handling analog input (4–20 mA), digital I/O, and CAN bus communication in factory automation. IC Role / Device Role / Timing Role: Central processing unit executing ladder logic, managing cyclic I/O scans, and synchronizing distributed I/O over CANopen. Use Value: 107 GPIOs support mixed-signal I/O expansion; 3 FDCAN interfaces enable redundant fieldbus links; RTC with alarm supports scheduled diagnostics and firmware updates. |
Use Scenario: Portable patient monitor aggregating ECG, SpO₂, temperature, and respiration signals. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing biopotentials, applying digital filtering, and transmitting processed data via USB or BLE (via UART). Use Value: Low-noise op-amps amplify microvolt-level ECG; internal VREFBUF ensures consistent ADC reference; true RNG supports secure data encryption; USB FS enables plug-and-play host connectivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | Same package and pinout; adds AES-256/HASH crypto accelerator and RNG enhancement; identical analog/peripheral set | Better suited for secure firmware updates or encrypted sensor data transmission | Select when cryptographic services are mandatory; otherwise, G473 offers cost-optimized feature set |
| STM32F303RET6 | Lower max frequency (72 MHz), no CORDIC/FMAC, smaller Flash (512 KB same but no ECC), fewer ADCs (3 vs 5), no FDCAN | Appropriate for simpler motor control or basic analog monitoring where math acceleration isn't needed | Choose only if legacy F3 software compatibility is required and performance headroom is sufficient |
Compared with STM32G474RET6, the G473RET6 omits crypto engines but retains identical real-time analog/motor control capability at lower BOM cost; versus STM32F303RET6, it delivers 2.4× higher compute throughput, enhanced analog density, and modern CAN FD support - making it the preferred upgrade path for next-gen industrial edge nodes.
Availability
STM32G473RET6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, programmable logic controllers, and medical sensor hubs requiring stable component supply across long-lifecycle deployments.
Supply support for STM32G473RET6 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 automotive-grade components since 1987.
The STM32G4 series targets high-efficiency digital power conversion and real-time motor control applications, integrating math accelerators and precision analog peripherals to replace discrete signal-chain components in space-constrained designs.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the STM32G473RET6?
The STM32G473RET6 operates at up to 170 MHz with a measured performance of 213 DMIPS (Dhrystone 2.1). This is achieved using the ART Accelerator for zero-wait-state Flash execution and includes full utilization of the Cortex-M4's FPU and DSP instruction set for deterministic real-time processing.
Does the STM32G473RET6 support hardware-accelerated trigonometric functions?
Yes - it integrates a dedicated CORDIC (Coordinate Rotation Digital Computer) co-processor that executes sin, cos, arctan, log, exp, and square root operations in fixed-point arithmetic with single-cycle latency. This offloads the CPU during motor control angle transformations and digital power loop calculations.
How many independent ADC instances does the STM32G473RET6 include, and what is their maximum effective resolution?
The device includes five independent 12-bit ADCs, each supporting up to 42 external channels. With hardware oversampling and decimation, effective resolution reaches 16 bits at reduced sampling rates - verified per DS12712 Section 3.18 and Table 5.3.18.
Is the STM32G473RET6 pin-compatible with other members of the STM32G473 family in the same package?
Yes - all STM32G473xB/C/E variants in LQFP64 (e.g., STM32G473CBT6, STM32G473CCT6) share identical pinouts and electrical characteristics. Differences are limited to Flash size (128 KB / 256 KB / 512 KB) and SRAM configuration, with no impact on PCB layout or signal routing.
STM32G473RET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 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; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473RET6 FAQ
1.How can I place an order for STM32G473RET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473RET6 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 STM32G473RET6 reliable?
The price and inventory of STM32G473RET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473RET6 is usually 5 days.
3.What payment methods are accepted for STM32G473RET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473RET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473RET6?
STM32G473RET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473RET6 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 STM32G473RET6?
For technical support, including STM32G473RET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473RET6 requirements.
6.How does Aetrix verify that STM32G473RET6 is sourced from the original manufacturer or authorized distributors?
All STM32G473RET6 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 STM32G473RET6 meets industry standards.
7.What is the process for return or replacement of STM32G473RET6?
All STM32G473RET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473RET6, 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 STM32G473RET6 part is unused and in its original packaging.
Return procedure for STM32G473RET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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