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STMicroelectronics STM32G473VBH3
- Part No.:
- STM32G473VBH3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
STM32G473VBH3.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 100TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,913
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Product details
Overview
STM32G473VBH3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, delivering 213 DMIPS at 170 MHz. It integrates 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), dual-bank read-while-write capability, and rich analog peripherals including five 12-bit ADCs (up to 42 channels), seven 12-bit DACs, six operational amplifiers, and three FDCAN controllers. It is deployed in industrial motor control systems requiring real-time computation, precision analog signal conditioning, and deterministic communication.
For engineers reviewing the STM32G473VBH3 datasheet, STM32G473VBH3 pinout, STM32G473VBH3 application, or STM32G473VBH3 equivalent, key selection considerations include its 170 MHz Cortex-M4+FPU core, CORDIC/FMAC hardware accelerators for trigonometric and filtering math, 512 KB ECC Flash with PCROP security, 107 fast I/Os with 5 V tolerance, and integrated UCPD for USB Type-C™ power delivery control.
Technical Context
The STM32G473VBH3 implements an Arm Cortex-M4 core with floating-point unit and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes dual-bank Flash supporting concurrent read/erase operations and 128 KB SRAM segmented into 96 KB general-purpose RAM and 32 KB CCM SRAM with parity protection on both.
Analog integration centers on five independent 12-bit ADCs (0.25 µs conversion, up to 16-bit oversampling), seven DAC channels (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps configurable as programmable-gain amplifiers, and dedicated CORDIC and FMAC units for hardware-accelerated mathematical functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| 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 PCROP protection |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM SRAM with hardware parity check |
| Analog Peripherals | 5 × 12-bit ADCs (42 channels, 0.25 µs), 7 × 12-bit DACs (3 buffered ext./4 unbuffered int.), 6 op-amps, 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 (flexible data-rate), 5 × USART/UART, 4 × I²C, 4 × SPI, USB FS with LPM/BCD, UCPD for USB Type-C™ PD |
| Math Acceleration | CORDIC engine for sin/cos/tan/log/exp and FMAC for FIR/IIR filter acceleration |
Pinout & Package
STM32G473VBH3 is housed in a 100-pin LQFP package (14 × 14 mm, pitch 0.5 mm), designated by package code "1L". This RoHS-compliant, surface-mount package supports industrial temperature range (–40°C to +85°C) and features exposed thermal pad for enhanced thermal dissipation in high-duty-cycle applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & Analog Power Supply | 1.71–3.6 V supply inputs; separate analog domain ensures clean reference for ADC/DAC/OPAMP operation |
| VSS, VSSA | Digital & Analog Ground | Independent ground planes minimize noise coupling between digital switching and precision analog circuits |
| PA0–PA15, PB0–PB15, etc. | General-Purpose I/O | Up to 107 GPIOs; most support external interrupt, timer capture/compare, and 5 V tolerance for mixed-voltage system interfacing |
| NRST | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; accepts external reset sources or debugger-initiated reset |
| BOOT0 | Boot Mode Selection | Configures boot source (system memory, main Flash, or SRAM) at power-on; sampled during reset sequence |
| SWDIO/SWCLK | Debug Interface | Two-pin Serial Wire Debug interface for programming, real-time tracing, and breakpoint debugging without JTAG overhead |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC Engine | Hardware-accelerated trigonometric, hyperbolic, and logarithmic functions reduce CPU load in motor control and sensor fusion |
| FMAC Unit | Dedicated filter math accelerator enables real-time FIR/IIR filtering at full CPU clock speed without software overhead |
| UCPD Peripheral | Integrated USB Type-C™ Power Delivery controller handles CC logic, VCONN switching, and PD message parsing without external IC |
| Advanced Timers | TIM1/TIM8/TIM20 support complementary PWM outputs with programmable dead time, fault input, and emergency shutdown for 3-phase inverter drives |
| ADC Architecture | Five independent 12-bit ADCs with flexible trigger sources, hardware oversampling up to 16-bit resolution, and simultaneous sampling across multiple channels |
Applications
| Industrial Motor Drives | USB-C Power Delivery Systems |
|---|---|
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, managing gate drivers via advanced timers, and acquiring current/voltage feedback via synchronized ADC sampling. Use Value: CORDIC and FMAC offload >40% of CPU cycles from math-intensive control loops; 170 MHz core ensures sub-µs loop timing for high-speed servo response. | Use Scenario: Embedded USB-C port controller in docking stations and multi-port chargers negotiating power contracts up to 100 W. IC Role / Device Role / Timing Role: UCPD peripheral handles physical layer signaling, PD protocol stack, and VBUS/VCONN power path control while MCU manages policy engine and user interface. Use Value: Integrated UCPD eliminates need for discrete PD controller IC, reducing BOM count and PCB area while maintaining full USB-IF compliance. |
| Programmable Logic Controllers | High-Precision Sensor Signal Conditioning |
Use Scenario: Compact PLC modules performing real-time I/O scanning, ladder logic execution, and fieldbus communication (CANopen, Modbus RTU). IC Role / Device Role / Timing Role: Central processing unit managing deterministic I/O update cycles, running safety-critical logic, and interfacing with isolated CAN transceivers and digital I/O expanders. Use Value: Dual-bank Flash enables seamless firmware updates without stopping I/O scanning; 107 GPIOs support direct connection to 24 V digital inputs/outputs via level-shifting buffers. | Use Scenario: High-resolution weigh scale or medical diagnostic equipment digitizing low-level analog signals from strain gauges or biosensors. IC Role / Device Role / Timing Role: Precision analog front-end controller performing correlated double sampling, offset/gain calibration, and digital filtering before transmitting results over UART or USB. Use Value: Six rail-to-rail op-amps configured as PGAs provide programmable gain (1–100×) with <1 µV/°C drift; internal VREFBUF delivers stable 2.048 V/2.5 V/2.9 V references for ADC/DAC accuracy. |
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 pin count (64 vs 100) | Fewer GPIOs and reduced analog channel count due to smaller pinout; lacks two ADC instances and one DAC channel | Select when board space or I/O count requirements allow reduction; verify ADC/DAC channel mapping against schematic |
| STM32G483RET6 | Includes cryptographic accelerators (AES, PKA, RNG) and tamper detection not present in G473; otherwise identical peripheral complement | Suitable for secure firmware updates, encrypted sensor data transmission, or trusted boot implementations where G473 lacks required security blocks | Choose when hardware-based security features are mandatory; note additional power consumption and potential certification overhead |
Compared with STM32G473VBH3, the G474 offers reduced I/O and analog resources in a smaller footprint, while the G483 adds cryptographic engines and tamper sensing-making it appropriate for secure edge nodes but unnecessary for cost-sensitive motor control or USB-C PD applications lacking security mandates.
Availability
STM32G473VBH3 is available at Aetrix Electronics and suitable for industrial motor drives, USB-C power delivery systems, programmable logic controllers, and high-precision sensor signal conditioning requiring stable component supply and long-term production continuity.
Supply support for STM32G473VBH3 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-performance, analog-rich embedded applications-including motor control, digital power supplies, and USB Type-C™ systems-by integrating math accelerators, advanced timers, and mixed-signal peripherals on a single Cortex-M4+FPU die.
FAQ
What is the maximum operating frequency and corresponding performance metric of the STM32G473VBH3?
The STM32G473VBH3 operates at a maximum CPU frequency of 170 MHz, achieving 213 DMIPS (Dhrystone MIPS) performance with the ART Accelerator enabled. This benchmark reflects real-world integer code execution efficiency under zero-wait-state Flash access conditions, validated per ARM's standard Dhrystone 2.1 test methodology.
Does the STM32G473VBH3 support hardware-accelerated mathematical functions, and if so, which ones?
Yes, it integrates two dedicated hardware accelerators: the CORDIC unit computes trigonometric (sin/cos/tan), hyperbolic (sinh/cosh), and logarithmic (ln/log10) functions in fixed-point arithmetic, while the FMAC performs multiply-accumulate operations for FIR/IIR digital filters. Both operate independently of the CPU core and are accessible via memory-mapped registers.
How many analog-to-digital converters does the STM32G473VBH3 include, and what are their key resolution and speed specifications?
The device integrates five independent 12-bit ADCs with a minimum conversion time of 0.25 µs per sample. Each supports hardware oversampling up to 16-bit effective resolution and can be triggered synchronously or asynchronously. Total channel count reaches 42 across all ADCs, with flexible input multiplexing and built-in temperature sensor and VREFINT monitoring.
What USB capabilities does the STM32G473VBH3 provide, and does it support USB Power Delivery?
The STM32G473VBH3 includes a full-speed USB 2.0 interface with Link Power Management (LPM) and Battery Charging Detection (BCD) support. Crucially, it also integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller that handles CC line monitoring, VCONN power switching, and PD message parsing-enabling complete USB-C PD sink/source/port partner functionality without external ICs.
STM32G473VBH3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-TFBGA
- 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:
- 86
- 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 42x12b; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473VBH3 FAQ
1.How can I place an order for STM32G473VBH3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473VBH3 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 STM32G473VBH3 reliable?
The price and inventory of STM32G473VBH3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473VBH3 is usually 5 days.
3.What payment methods are accepted for STM32G473VBH3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473VBH3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473VBH3?
STM32G473VBH3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473VBH3 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 STM32G473VBH3?
For technical support, including STM32G473VBH3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473VBH3 requirements.
6.How does Aetrix verify that STM32G473VBH3 is sourced from the original manufacturer or authorized distributors?
All STM32G473VBH3 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 STM32G473VBH3 meets industry standards.
7.What is the process for return or replacement of STM32G473VBH3?
All STM32G473VBH3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473VBH3, 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 STM32G473VBH3 part is unused and in its original packaging.
Return procedure for STM32G473VBH3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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