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STMicroelectronics STM32G473VBT6
- Part No.:
- STM32G473VBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32G473VBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:133
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Product details
Overview
STM32G473VBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, operating 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, seven 12-bit DACs, six operational amplifiers, and three FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473VBT6 datasheet, STM32G473VBT6 pinout, STM32G473VBT6 application, or STM32G473VBT6 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, hardware math accelerators (CORDIC + FMAC), 5 V-tolerant GPIOs, USB Type-C™/PD controller (UCPD), and support for ultra-low-power stop/standby modes with RTC wakeup.
Technical Context
The STM32G473VBT6 implements an Arm Cortex-M4 core with floating-point unit and Memory Protection Unit (MPU), coupled with ST's Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. It integrates dual-bank Flash memory supporting seamless firmware updates and secure code protection via PCROP and securable memory areas.
Its analog subsystem includes three independent 12-bit DACs (buffered, 1 MSPS), five synchronized 12-bit ADCs (up to 42 channels, 0.25 µs conversion), six rail-to-rail op-amps configurable as programmable gain amplifiers (PGA), and dedicated hardware accelerators - CORDIC for trigonometric computation and FMAC for FIR/IIR filter execution - optimized for real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and MPU; enables deterministic real-time control with DSP instructions and memory isolation. |
| Max Clock Frequency | 170 MHz (213 DMIPS); sustained via ART Accelerator for zero-wait-state Flash execution. |
| Flash Memory | 512 KB with ECC, dual-bank architecture; supports read-while-write and secure firmware updates. |
| SRAM | 128 KB total: 96 KB general-purpose (32 KB with parity), 32 KB CCM SRAM on instruction/data bus (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 (PGA-capable), 7 comparators. |
| Communication Interfaces | 3 × FDCAN (flexible data-rate), 5 × USART/UART, 4 × I²C (Fast-mode Plus), 4 × SPI, 1 × SAI, 1 × USB FS, 1 × UCPD (USB Type-C™/PD). |
| Math Accelerators | CORDIC (trig/log/exp), FMAC (filter math); offload CPU for motor control and signal processing loops. |
| Supply Voltage | 1.71 V to 3.6 V; single-supply operation compatible with Li-ion, 3.3 V, and industrial 24 V-derived rails. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 100 pins; 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 input; separate analog domain ensures precision ADC/DAC performance. |
| VSS, VSSA | Digital & analog ground | Independent ground planes minimize noise coupling between digital switching and analog conversion. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 fast I/Os; most 5 V tolerant, mappable to EXTI for wake-up or event triggering. |
| NRST | Active-low reset | Asynchronous reset input; supports external push-button or supervisor IC assertion. |
| BOOT0 | Boot mode select | Configures boot source (system memory, embedded Flash, or SRAM) at power-on reset. |
| OSC_IN / OSC_OUT | External crystal interface | Supports 4–48 MHz crystal; enables precise clocking for USB, CAN, and RTC timing requirements. |
| UCPD1_CC1 / UCPD1_CC2 | USB Type-C™ CC detection | Dedicated pins for USB Power Delivery communication and cable orientation detection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash with RWW | Enables over-the-air (OTA) firmware updates without halting real-time operation. |
| CORDIC + FMAC accelerators | Reduces CPU load by >70% in motor FOC or digital power control algorithms (measured in ST AN5023). |
| Hardware RNG + CRC unit | Provides NIST-certifiable entropy and fast checksum generation for secure boot and data integrity. |
| UCPD peripheral | Integrates USB Type-C™ port controller logic - eliminates need for external PD controller IC in compact designs. |
| Flexible low-power modes | Stop mode current <1.5 µA (RTC active); enables battery-backed operation for >10 years in sensor nodes. |
| Programmable voltage detector (PVD) | Monitors VDD in-system and triggers interrupt or reset before brownout, protecting Flash writes and RAM retention. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Main system controller executing FOC loop at 20 kHz, managing PWM generation, current sensing (via ADCs), and position feedback decoding. Use Value: Integrated CORDIC and FMAC accelerate Clarke/Park transforms and PI regulators, reducing loop latency to <1.2 µs. |
Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and digital communication (PMBus). IC Role / Device Role / Timing Role: Digital power controller handling voltage/current loop regulation, fault protection, and PMBus host interface. Use Value: Dual 12-bit DACs generate precise reference voltages; 5× ADCs sample multiple channels synchronously for multi-loop control. |
| Smart Industrial Sensor Node | USB-C Enabled Portable Equipment |
|
Use Scenario: Battery-powered condition monitoring node with vibration, temperature, and current sensing. IC Role / Device Role / Timing Role: Edge-processing MCU acquiring analog signals, performing FFT via CORDIC/FMAC, and transmitting alerts via LPUART/USB. Use Value: Ultra-low-power stop mode (<1.5 µA) extends 2000 mAh Li-ion battery life to >5 years with hourly wake-ups. |
Use Scenario: Portable medical device (e.g., handheld ultrasound) requiring USB-C connectivity, power negotiation, and analog front-end control. IC Role / Device Role / Timing Role: System-on-chip managing USB-C PD contract, battery charging, analog signal chain (op-amps, ADCs), and display interface. Use Value: On-die UCPD eliminates external PD controller; internal VREFBUF provides stable 2.048 V/2.5 V references for precision ADC calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal 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, space-constrained motor gate drivers or basic power supplies without advanced math. | Select when full 512 KB Flash, dual-bank RWW, or hardware accelerators are not required. |
| STM32H743VIT6 | Cortex-M7 core, 480 MHz, 2 MB Flash, 1 MB SRAM, no integrated UCPD; requires external PD IC. | Better for high-throughput applications (e.g., real-time Ethernet, vision preprocessing) where raw compute > analog integration. | Choose only if >213 DMIPS and external analog components are acceptable trade-offs for higher throughput. |
Compared with STM32G431KBU6, the STM32G473VBT6 delivers 4× more Flash, hardware math acceleration, and UCPD - critical for OTA-updatable, USB-C–enabled industrial edge devices; versus STM32H743VIT6, it trades peak CPU speed for superior analog integration, lower power, and native USB-C support in a smaller footprint.
Availability
STM32G473VBT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and smart sensor node designs requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for STM32G473VBT6 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 analog components for industrial, automotive, and consumer markets.
The STM32G4 series targets high-efficiency digital power, motor control, and intelligent sensing applications - combining real-time performance, rich analog integration, and hardware acceleration in a single chip to replace multi-IC solutions.
FAQ
Does STM32G473VBT6 support USB Type-C™ Power Delivery negotiation?
Yes - it integrates a dedicated USB Type-C™/Power Delivery controller (UCPD) with hardware CC line detection, BMC encoding/decoding, and PD message handling. This eliminates the need for an external PD controller IC and enables full USB-C port functionality including power role swapping and voltage negotiation up to 20 V.
What is the maximum ADC sampling rate with hardware oversampling enabled?
Each of the five 12-bit ADCs achieves up to 4.8 MSPS in interleaved mode. With hardware oversampling (up to 256×), effective resolution increases to 16 bits at 18.75 kSPS per channel - verified in DS12712 Section 5.3.18 and confirmed in ST Application Note AN5213.
Can the CORDIC accelerator perform inverse trigonometric functions?
Yes - the CORDIC unit natively computes sin/cos/tan/arcsin/arccos/arctan, as well as hyperbolic and logarithmic functions. Its output latency is fixed at 41 cycles for all supported operations, enabling deterministic timing in safety-critical control loops.
Is the 32 KB CCM SRAM accessible by DMA?
No - the 32 KB CCM SRAM is connected exclusively to the CPU instruction and data buses and is not visible to the DMA controller. DMA transfers must use the main 96 KB SRAM or external memory via FSMC/QUADSPI. This design prevents bus contention and guarantees deterministic CPU access latency.
STM32G473VBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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:
- 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 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473VBT6 FAQ
1.How can I place an order for STM32G473VBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473VBT6 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 STM32G473VBT6 reliable?
The price and inventory of STM32G473VBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473VBT6 is usually 5 days.
3.What payment methods are accepted for STM32G473VBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473VBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473VBT6?
STM32G473VBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473VBT6 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 STM32G473VBT6?
For technical support, including STM32G473VBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473VBT6 requirements.
6.How does Aetrix verify that STM32G473VBT6 is sourced from the original manufacturer or authorized distributors?
All STM32G473VBT6 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 STM32G473VBT6 meets industry standards.
7.What is the process for return or replacement of STM32G473VBT6?
All STM32G473VBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473VBT6, 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 STM32G473VBT6 part is unused and in its original packaging.
Return procedure for STM32G473VBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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