My Inquiry
My Account
STMicroelectronics STM32G473QBT6
- Part No.:
- STM32G473QBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
STM32G473QBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,838
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32G473QBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 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 (0.25 µs conversion), seven 12-bit DAC channels, six rail-to-rail op-amps, and hardware math accelerators (CORDIC, FMAC). It targets motor control, digital power conversion, and industrial sensing systems requiring real-time signal processing and high-precision analog I/O.
For engineers reviewing the STM32G473QBT6 datasheet, STM32G473QBT6 pinout, STM32G473QBT6 application, or STM32G473QBT6 equivalent, key selection criteria include its 170 MHz Cortex-M4+FPU core, dual-bank Flash with read-while-write capability, 5 V-tolerant GPIOs (up to 107), FDCAN support for flexible data-rate automotive/industrial networks, and integrated UCPD for USB Type-C™ power delivery control.
Technical Context
The STM32G473QBT6 implements an Adaptive Real-time Accelerator (ART) 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, minimizing bus contention in high-throughput applications like motor control with simultaneous ADC sampling, PWM generation, and communication handling.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), supporting bit rates up to 5 Mbit/s and payload sizes up to 64 bytes. The UCPD peripheral provides full USB Type-C™ port controller functionality-including VCONN switching, CC logic, and PD message handling-without requiring external PHY or policy engine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU and DSP instructions; enables floating-point math and complex control algorithms in real time. |
| Max Clock Frequency | 170 MHz (213 DMIPS); delivers deterministic timing for servo loops and digital power control with sub-microsecond jitter. |
| Flash Memory | 512 KB with ECC, dual-bank architecture; supports seamless firmware updates via read-while-write and secure boot with PCROP. |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM SRAM with parity; isolates critical code/data from bus contention. |
| Analog Peripherals | 5 × 12-bit ADCs (42 ch, 0.25 µs), 7 × 12-bit DACs (3 buffered ext., 4 unbuffered int.), 6 op-amps, 7 comparators; enables sensor fusion and closed-loop analog signal conditioning. |
| Communication | 3 × FDCAN, 5 × USART, 4 × I²C, 4 × SPI, USB FS, SAI, LPUART, UCPD; supports mixed-criticality protocols in single-chip industrial gateways. |
| Math Acceleration | CORDIC (sin/cos/tan/atan/rho/phi) and FMAC (FIR/IIR filtering); offloads >90% of trigonometric and filter computations from CPU. |
Pinout & Package
STM32G473QBT6 uses the UFQFPN48 (7 × 7 mm) package with 48 pins, optimized for space-constrained industrial and motor control PCBs. Pin functions are validated per ST's DS12712 Rev 5, Section 4.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog domain ensures clean reference for ADC/DAC/OPAMP. |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling between digital switching and precision analog circuits. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 pins; most support 5 V tolerance, enabling direct interfacing with legacy 5 V logic and sensors. |
| PA1, PA2, PA3, etc. | ADC/DAC/OPAMP channels | Direct routing to analog peripherals minimizes trace length and noise pickup for high-fidelity signal acquisition. |
| PH0, PH1 | HSE crystal oscillator input | Supports 4–48 MHz external crystal; essential for precise clocking in FDCAN, USB, and RTC applications. |
| PA11, PA12 | USB D+/D− | Integrated USB 2.0 full-speed transceiver; eliminates need for external PHY in embedded host/device designs. |
| PD0, PD1 | UCPD CC1/CC2 | Dedicated pins for USB Type-C™ configuration channel detection and PD communication. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-time Accelerator (ART) | Enables 0-wait-state execution from Flash at 170 MHz, eliminating instruction fetch stalls in time-critical ISR paths. |
| CORDIC & FMAC hardware accelerators | Accelerates trigonometric and filtering operations by 10–20× vs. software-only implementation, freeing CPU for control tasks. |
| Dual-bank Flash with PCROP | Allows secure firmware update via bank swapping while maintaining runtime integrity; PCROP protects bootloader and cryptographic keys. |
| FDCAN with flexible data rate | Supports both classical CAN (1 Mbit/s) and CAN FD (up to 5 Mbit/s, 64-byte payloads), future-proofing automotive and industrial network nodes. |
| Integrated UCPD controller | Handles USB Type-C™ port negotiation, VCONN management, and Power Delivery messaging without external ICs or firmware overhead. |
| 32 KB CCM SRAM with parity | Dedicated tightly coupled memory for interrupt handlers and real-time buffers; hardware parity detects memory corruption in safety-critical contexts. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized PWM generation (TIM1/TIM8), high-speed ADC sampling (12-bit @ 0.25 µs), and current/voltage feedback processing. Use Value: Integrated op-amps and comparators enable direct shunt-based current sensing; CORDIC computes rotor angle in <100 ns, reducing loop latency below 1 µs. |
Use Scenario: Digital AC-DC and DC-DC converters (e.g., server PSUs, telecom rectifiers) with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Closed-loop voltage/current regulation using PID on FMAC-accelerated filters, synchronous rectification control, and isolated communication via FDCAN or UART. Use Value: Dual-bank Flash allows safe field updates; 12-bit DACs generate precise reference voltages; UCPD manages USB-C PD negotiation for programmable output profiles. |
| Smart Industrial Sensor Hub | USB-C Enabled Embedded Gateway |
|
Use Scenario: Multi-sensor node aggregating temperature, pressure, vibration, and analog process signals for predictive maintenance in factory automation. IC Role / Device Role / Timing Role: Simultaneous sampling across 42 ADC channels, sensor calibration via internal temperature sensor and VREFBUF, and local edge analytics using DSP instructions. Use Value: Internal 2.048 V/2.5 V/2.9 V VREFBUF eliminates external references; 16-bit oversampling achieves effective 14-bit resolution for low-drift measurements. |
Use Scenario: Edge gateway connecting legacy RS-485/Modbus devices to cloud platforms via USB-C wired uplink and Wi-Fi/Ethernet backhaul. IC Role / Device Role / Timing Role: USB-C port manager (UCPD), protocol bridge (FDCAN ↔ USB CDC, UART ↔ USB ACM), and secure firmware update handler with PCROP-protected bootloader. Use Value: Single-chip replaces discrete UCPD + MCU + USB PHY; LPUART maintains connectivity during low-power sleep; 96-bit unique ID enables device identity binding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431KBT6 | Same Cortex-M4+FPU core but limited to 128 KB Flash, 32 KB SRAM, no CORDIC/FMAC, and only 1 FDCAN. | Suitable for cost-sensitive motor control where advanced math acceleration and multi-FDCAN are unnecessary. | Select when BOM cost reduction outweighs need for dual-bank Flash, hardware math units, or USB-C UCPD. |
| STM32H743VIT6 | Higher-performance dual-core (Cortex-M7 + M4), 2 MB Flash, 1 MB RAM, but larger LQFP100 package and higher power consumption. | Targeted at high-end industrial HMI, AI edge inference, or multi-protocol gateways requiring >300 DMIPS. | Choose when application demands >170 MHz deterministic performance, large buffer memory, or dual-core partitioning-not for G4-class cost/power constraints. |
Compared with STM32G431KBT6, the STM32G473QBT6 adds hardware math acceleration and dual-bank Flash for robust firmware updates; versus STM32H743VIT6, it offers better power efficiency and smaller footprint for mid-tier real-time control without over-engineering.
Availability
STM32G473QBT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and smart sensor hub applications requiring stable component supply, long-term manufacturability, and qualified automotive-grade variants (where applicable).
Supply support for STM32G473QBT6 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, specializing in microcontrollers, power management, analog, MEMS, and automotive ICs.
The STM32G4 series is designed for real-time industrial control and digital power applications, combining high analog integration, math acceleration, and functional safety readiness (IEC 61508 SIL2 support) in a single chip.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32G473QBT6 achieves 170 MHz maximum CPU frequency using its Adaptive Real-time Accelerator (ART), which caches Flash accesses to eliminate wait states. This requires enabling ART in firmware and configuring the system clock tree with PLL output set to 170 MHz. The core delivers 213 DMIPS at this speed with full FPU and DSP instruction support.
Does STM32G473QBT6 support USB Type-C™ Power Delivery?
Yes - it integrates a full USB Type-C™ and Power Delivery (UCPD) controller with dedicated CC1/CC2 pins (PD0/PD1), VCONN switching, BMC physical layer, and PD message handling. No external PHY or policy engine is required; ST's UCPD middleware stack handles PD contract negotiation and port role management.
How many analog-to-digital converters does it have and what are their key capabilities?
It features five independent 12-bit ADCs with up to 42 input channels, 0.25 µs conversion time, and hardware oversampling up to 16-bit effective resolution. Each ADC supports injected/conversion sequences, analog watchdogs, and direct DMA triggering - enabling simultaneous sampling of motor phase currents, DC bus voltage, and temperature sensors in real time.
What development tools are officially supported for STM32G473QBT6?
ST provides full support via STM32CubeG4 firmware package, STM32CubeMX configuration tool, and STM32CubeIDE (Eclipse-based). Hardware debug is enabled through SWD/JTAG interfaces; evaluation boards include NUCLEO-G474RE and STM32G473E-EVAL. ST's Motor Control SDK and Digital Power SDK offer production-ready firmware examples.
STM32G473QBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 128-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:
- 107
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473QBT6 FAQ
1.How can I place an order for STM32G473QBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473QBT6 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 STM32G473QBT6 reliable?
The price and inventory of STM32G473QBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473QBT6 is usually 5 days.
3.What payment methods are accepted for STM32G473QBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473QBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473QBT6?
STM32G473QBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473QBT6 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 STM32G473QBT6?
For technical support, including STM32G473QBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473QBT6 requirements.
6.How does Aetrix verify that STM32G473QBT6 is sourced from the original manufacturer or authorized distributors?
All STM32G473QBT6 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 STM32G473QBT6 meets industry standards.
7.What is the process for return or replacement of STM32G473QBT6?
All STM32G473QBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473QBT6, 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 STM32G473QBT6 part is unused and in its original packaging.
Return procedure for STM32G473QBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G473QBT6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
