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STMicroelectronics STM32G473VCH3

Name: STM32G473VCH3
Brand: STMicroelectronics
SKU: STM32G473VCH3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32G473VCH3

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 100-TFBGA

Datasheet:: STM32G473VCH3.pdf

Description:: IC MCU 32BIT 256KB FLSH 100TFBGA

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Product details

Overview

STM32G473VCH3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, delivering 170 MHz/213 DMIPS performance, 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs, 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 computation and high-precision analog signal processing.

For engineers reviewing the STM32G473VCH3 datasheet, STM32G473VCH3 pinout, STM32G473VCH3 application, or STM32G473VCH3 equivalent, key selection considerations include its 100-pin LQFP package, 1.71–3.6 V operating voltage, CORDIC/FMAC hardware accelerators for trigonometric and filtering operations, and UCPD interface for USB Type-C™ power delivery implementation.

Technical Context

The STM32G473VCH3 implements an Arm Cortex-M4 core with floating-point unit and Memory Protection Unit (MPU), supported by the Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix routes up to 107 GPIOs, 16-channel DMA, and multiple bus masters to peripherals without contention.

Analog subsystem integration includes three independent 12-bit buffered DAC channels (1 MSPS), four unbuffered internal DAC channels (15 MSPS), seven rail-to-rail comparators, and six op-amps configurable in programmable-gain amplifier (PGA) mode - all accessible via dedicated pins and synchronized with advanced timers for motor control timing precision.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M4 with FPU and MPU; enables deterministic real-time control with DSP instruction support and memory isolation.
Max Clock Frequency	170 MHz with 213 DMIPS; sustained performance enabled by ART Accelerator and dual-bank Flash with read-while-write capability.
Memory	512 KB Flash (ECC, PCROP, two banks), 96 KB SRAM + 32 KB CCM SRAM (parity-checked); supports secure firmware updates and critical data buffering.
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; enables closed-loop analog signal chain in single chip.
Timers & Control	3 × 16-bit advanced motor control timers (TIM1/TIM8/TIM20) with dead-time generation and emergency stop; essential for 3-phase inverter gate driving.
Communication	3 × FDCAN (flexible data-rate), 5 × USART/UART, 4 × I²C (Fast Mode Plus), 4 × SPI, USB FS with LPM/BCD, UCPD; supports industrial fieldbus and USB-C PD applications.
Supply & Power	1.71–3.6 V operation; low-power modes (sleep/stop/standby/shutdown) with RTC wakeup and VBAT backup; suitable for battery-backed embedded systems.

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; 100-pin configuration supporting full peripheral mapping, 5 V-tolerant I/Os on selected pins, and dedicated analog/digital supply domains (VDDA/VSSA, VDD/VSS).

Pin/Terminal	Circuit Role	Design Meaning
VDD, VSS	Main digital power supply and ground	1.71–3.6 V domain powering CPU, digital peripherals, and I/Os; decoupling required per datasheet layout guidelines.
VDDA, VSSA	Analog power supply and ground	Independent 1.71–3.6 V domain for ADC/DAC/OPAMP/COMP; critical for analog accuracy and noise immunity.
PA0–PA15, PB0–PB15, etc.	General-purpose I/Os	Up to 107 GPIOs; most support external interrupts, alternate functions, and 5 V tolerance - enables flexible board-level signal routing.
PA1, PA2, PA3, etc.	ADC/DAC/OPAMP channel inputs/outputs	Dedicated analog pins mapped to internal converters and amplifiers; require proper PCB layout (guard rings, separate ground planes) for 12-bit linearity.
PH0, PH1	HSE crystal oscillator inputs	Supports 4–48 MHz external crystal; used for precise clock source in motor control and communication timing-critical applications.
PC13–PC15	RTC and LSE oscillator	Connects 32.768 kHz crystal for calendar RTC with alarm and periodic wakeup from Stop/Standby modes.
PD0–PD2	FDCAN1 transceiver interface	Differential CANH/CANL pins with integrated transceiver biasing; supports ISO 11898-1 compliant physical layer without external components.
PA11, PA12	USB D+/D−	Full-speed USB 2.0 interface with built-in transceiver and LPM/BCD support; eliminates need for external USB PHY.
PF0–PF15	UCPD CC1/CC2, VCONN, VBUS sense	Hardware-controlled USB Type-C™ port management including cable orientation detection, VBUS monitoring, and VCONN power switching.

Key Features

Feature	Design Value
CORDIC accelerator	Hardware trigonometric engine reducing CPU load for motor vector control (FOC) and sensor fusion; executes sin/cos/atan/sqrt in <100 cycles.
FMAC filter accelerator	Dedicated 32-bit MAC unit supporting real-time FIR/IIR filtering for current/voltage loop compensation without CPU intervention.
Advanced motor control timers	TIM1/TIM8/TIM20 provide 8-channel PWM with complementary outputs, programmable dead time (1–1023 ns), and synchronous ADC triggering for precise 3-phase inverter control.
VREFBUF internal reference	Programmable 2.048 V / 2.5 V / 2.9 V output with ±0.5% accuracy; supplies stable reference to ADC/DAC/COMP without external components.
UCPD controller	Integrated USB Power Delivery protocol engine with hardware CRC, message handling, and policy engine - enables USB-C port negotiation without host MCU firmware overhead.

Applications

Industrial Motor Drives

Digital Power Supplies

Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps.

IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating synchronized 6-channel PWM, sampling current/voltage via ADC, and managing protection logic.

Use Value: Integrated CORDIC/FMAC accelerators reduce CPU load by >40% vs. software-only math; advanced timers enable <100 ns dead-time precision for SiC/GaN gate drivers.

Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and PMBus communication.

IC Role / Device Role / Timing Role: Primary digital power controller performing voltage/current loop regulation, thermal monitoring, fault logging, and isolated communication via I²C/SPI.

Use Value: Dual 12-bit ADCs with hardware oversampling achieve 16-bit effective resolution for precise output sensing; UCPD interface enables native USB-C PD sink implementation.

Smart Grid Sensors

USB-C Enabled Industrial Gateways

Use Scenario: High-accuracy energy metering and grid condition monitoring in DIN-rail mounted IoT edge nodes.

IC Role / Device Role / Timing Role: Analog front-end processor acquiring voltage/current/temperature signals, performing RMS/THD calculations, and transmitting data via UART/LPUART to gateway.

Use Value: Five independent ADCs allow simultaneous sampling of 3-phase voltage/current + auxiliary sensors; internal temperature sensor calibrated to ±1.5°C supports thermal derating algorithms.

Use Scenario: Industrial HMI and gateway devices requiring USB-C connectivity for firmware updates, diagnostics, and power delivery negotiation.

IC Role / Device Role / Timing Role: USB-C port manager and system host controller handling CC pin detection, VBUS monitoring, policy engine execution, and USB enumeration.

Use Value: On-chip UCPD controller eliminates external USB-C PD IC; hardware CRC and message buffers reduce firmware complexity and improve protocol reliability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32G474RET6	Same core, Flash, RAM, and peripheral set; differs in package (LQFP64 vs. LQFP100) and missing UCPD interface.	Lacks USB-C PD controller; unsuitable for USB-C port management but sufficient for general-purpose motor control.	Select when UCPD is unnecessary and board space constraints favor smaller footprint.
STM32H743VIT6	Higher-performance Cortex-M7 (480 MHz), 2 MB Flash, dual-core option, no CORDIC/FMAC, different ADC/DAC architecture.	Targeted at complex GUI/HMI or AI-edge inference; lacks G4's analog integration density and motor control timer specialization.	Choose only when raw compute throughput outweighs analog integration and cost sensitivity.

Compared with STM32G474RET6, the STM32G473VCH3 provides USB-C PD capability and larger pin count for full peripheral access; versus STM32H743VIT6, it delivers superior analog subsystem integration and deterministic motor control timing at lower cost and power.

Availability

STM32G473VCH3 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart grid sensors, and USB-C enabled industrial gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32G473VCH3 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 is engineered for real-time embedded applications demanding high analog integration, mathematical acceleration, and robust industrial connectivity - particularly targeting digital power, motor control, and USB-C PD systems.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32G473VCH3 achieves 170 MHz maximum CPU frequency using the Adaptive Real-Time (ART) Accelerator, which enables zero-wait-state execution from Flash memory. This is validated across temperature and voltage ranges per DS12712 Rev 5, with 213 DMIPS measured under EEMBC CoreMark conditions. The ART Accelerator includes prefetch and branch cache, and operates independently of Flash bank configuration.

Does the device support hardware-based USB Type-C™ Power Delivery?

Yes - the STM32G473VCH3 integrates a full USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0 specification. It handles CC pin detection, VBUS monitoring, SOP message exchange, CRC calculation, and policy engine execution in hardware, eliminating the need for external PD controllers or significant firmware overhead.

How many ADC channels are available and what is their effective resolution?

The device features five independent 12-bit ADCs with up to 42 total input channels. Hardware oversampling allows effective resolution up to 16 bits (e.g., 4× oversampling yields 14-bit ENOB; 16× yields 16-bit). Conversion time is 0.25 µs at maximum speed, and each ADC supports injected/conversion sequences synchronized to advanced timers for motor phase current sampling.

What are the key differences between STM32G473VCH3 and STM32G474RET6?

The STM32G473VCH3 (LQFP100) includes the UCPD controller and has 100 pins for full peripheral access, while the STM32G474RET6 (LQFP64) omits UCPD and reduces pin count - limiting analog channel count, timer outputs, and communication interface availability. Both share identical core, Flash, RAM, and CORDIC/FMAC accelerators, but only the VCH3 variant supports native USB-C PD implementation.

STM32G473VCH3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 100-TFBGA

Series:: STM32G4

Packaging:: Tray

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:: 86

Program Memory Size:: 256KB (256K 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 ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32G473VCH3 FAQ

1.How can I place an order for STM32G473VCH3 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32G473VCH3 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 STM32G473VCH3 reliable?

The price and inventory of STM32G473VCH3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473VCH3 is usually 5 days.

3.What payment methods are accepted for STM32G473VCH3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473VCH3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32G473VCH3?

STM32G473VCH3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32G473VCH3 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 STM32G473VCH3?

For technical support, including STM32G473VCH3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473VCH3 requirements.

6.How does Aetrix verify that STM32G473VCH3 is sourced from the original manufacturer or authorized distributors?

All STM32G473VCH3 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 STM32G473VCH3 meets industry standards.

7.What is the process for return or replacement of STM32G473VCH3?

All STM32G473VCH3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473VCH3, 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 STM32G473VCH3 part is unused and in its original packaging.

Return procedure for STM32G473VCH3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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