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STMicroelectronics STM32G473MBT6
- Part No.:
- STM32G473MBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
STM32G473MBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,839
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Product details
Overview
STM32G473MBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash (ECC), 128 KB SRAM (96 KB + 32 KB CCM), and 170 MHz max CPU frequency (213 DMIPS). It integrates CORDIC/FMAC math accelerators, 5×12-bit ADCs (42-channel, 0.25 µs), 7×DAC channels, 6×rail-to-rail op-amps, and 3×FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473MBT6 datasheet, STM32G473MBT6 pinout, STM32G473MBT6 application, or STM32G473MBT6 equivalent, key selection criteria include its dual-bank Flash with PCROP, 5 V-tolerant I/Os (up to 107 pins), integrated UCPD for USB Type-C™ PD, and hardware-accelerated trigonometric/filter math functions essential for real-time control loops.
Technical Context
The STM32G473MBT6 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 without bus contention, critical for deterministic motor control timing.
It features three independent FDCAN controllers compliant with ISO 11898-1:2015 (FD mode up to 5 Mbps), a dedicated USB Type-C™/PD controller (UCPD) with VBUS monitoring and role swap support, and a multi-channel DMA system with DMAMUX routing for synchronized analog acquisition and PWM update.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and MPU - enables floating-point control algorithms and memory-protected multitasking. |
| Max Clock Frequency | 170 MHz (213 DMIPS) - delivers high-throughput signal processing for servo drives and active rectifiers. |
| Flash Memory | 512 KB with ECC, dual-bank read-while-write, PCROP - supports safe firmware updates and secure code partitioning. |
| SRAM | 96 KB main SRAM + 32 KB CCM SRAM with parity - provides low-latency data buffers for real-time control variables. |
| Analog Peripherals | 5×12-bit ADCs (42 ch, 0.25 µs), 7×DACs (3 buffered ext., 4 unbuffered int.), 6×op-amps, 7×comparators - enables full analog front-end integration for closed-loop power stage monitoring. |
| Communication | 3×FDCAN, 4×I²C (1 Mbit/s), 5×USART/LPUART, 4×SPI, USB FS + UCPD - supports CAN FD fieldbus, isolated serial comms, and USB-C PD negotiation in compact industrial nodes. |
| Math Acceleration | CORDIC (sin/cos/tan/atan/range reduction) and FMAC (FIR/IIR filtering) - offloads >90% of compute cycles for motor angle estimation and current loop filtering. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch) package with 42 general-purpose I/Os, all mappable to external interrupt vectors; 25 pins support 5 V tolerance for mixed-voltage interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual 1.71–3.6 V domain: VDD powers core/peripherals; separate VDDA ensures ADC/DAC reference stability. |
| PA0–PA15, PB0–PB15, PC0–PC15, etc. | General-purpose I/O | Configurable as GPIO, AF, or analog; up to 42 pins available in LQFP48 - sufficient for 3-phase motor control (6x PWM + 6x ADC + encoder inputs). |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins - enable HID/CDC device-class firmware without external PHY. |
| PA13/PA14 | SWDIO/SWCLK | Serial Wire Debug interface - supports non-intrusive real-time tracing and flash programming via standard debug probes. |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; accepts 1.65–5.5 V logic - compatible with external supervisor ICs or pushbutton circuits. |
| BOOT0 | Boot mode select | High at power-on forces system memory boot (for DFU); tied low for normal Flash execution - enables field firmware recovery. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric engine delivering sin/cos/atan in ≤12 cycles - eliminates software lookup tables and reduces angle-calculation latency by 8× vs. CMSIS-DSP. |
| FMAC unit | 16×16-bit MAC with 32-bit accumulator and programmable filter coefficients - executes 256-tap FIR filters in <1 µs, ideal for adaptive current loop compensation. |
| UCPD controller | Integrated USB Type-C™ Power Delivery PHY and protocol engine - handles VBUS sourcing/sinking, role swap, and PDO negotiation without external MCU intervention. |
| Advanced timers (TIM1/TIM8) | 16-bit 8-channel motor control timers with dead-time insertion, emergency stop, and complementary PWM outputs - directly drive 3-phase inverter gate drivers with <1 ns jitter. |
| VREFBUF | Programmable 2.048 V / 2.5 V / 2.9 V internal reference buffer - supplies stable ADC/DAC reference without external precision voltage sources. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of BLDC/PMSM motors in HVAC compressors and robotic joints. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm (Park/Clarke transforms, PI current loops), PWM generation, and ADC sampling synchronized to switching edges. Use Value: CORDIC and FMAC reduce CPU load by 45%, enabling 20 kHz current loop bandwidth with margin for safety monitoring. |
Use Scenario: Bidirectional AC/DC and DC/DC converters with adaptive voltage/current regulation and fault protection. IC Role / Device Role / Timing Role: High-resolution PWM timing (150 ps resolution), fast ADC sampling (0.25 µs), and hardware-based overvoltage/overcurrent trip detection. Use Value: Integrated comparators and op-amps allow cycle-by-cycle current limiting without external analog circuitry, reducing BOM count by 7 components. |
| USB-C PD Sink/Source | Condition Monitoring Sensor Node |
Use Scenario: Smart docking stations and portable medical devices requiring USB-C power negotiation and data tunneling. IC Role / Device Role / Timing Role: UCPD controller managing PD contract, VBUS level control, and alternate mode configuration (e.g., DisplayPort). Use Value: Single-chip USB-C PD compliance eliminates need for discrete PD controller IC and associated firmware stack. |
Use Scenario: Wireless vibration/temperature sensors in predictive maintenance systems with local edge analytics. IC Role / Device Role / Timing Role: Low-power sensor fusion hub aggregating data from MEMS accelerometers, thermistors, and humidity sensors via I²C/SPI. Use Value: RTC with periodic wakeup from Stop mode (<1.5 µA) and hardware CRC engine enable 10-year battery life with secure firmware integrity checks. |
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/peripherals but 512 KB Flash + 256 KB SRAM; no UCPD block; LQFP64 package (64 pins) | Better suited for complex GUI or Ethernet-enabled HMI where extra SRAM and pin count are needed, but lacks native USB-C PD support | Select when USB-C PD is not required and higher memory headroom or more I/Os justify larger footprint and cost premium |
| STM32F303K8T6 | Lower-tier Cortex-M4 (72 MHz), 64 KB Flash, no CORDIC/FMAC, only 1×FDCAN, no UCPD, LQFP32 package | Targeted at cost-sensitive single-axis motor control or basic analog measurement where math acceleration and USB-C are unnecessary | Choose only for legacy designs or ultra-low-cost entry-level applications - lacks performance and feature scalability of G473 |
Compared with STM32G473MBT6, the STM32G474RET6 trades UCPD capability for greater memory and I/O scalability, while the STM32F303K8T6 sacrifices math acceleration, FDCAN count, and USB-C readiness to meet aggressive BOM targets - making the G473MBT6 optimal for next-gen USB-C-powered motor and power systems requiring embedded math offload.
Availability
STM32G473MBT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, USB-C PD endpoint design, and condition monitoring sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32G473MBT6 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 - specifically engineered for real-time control in motor drives, digital power supplies, and USB-C PD systems where math acceleration and peripheral integration reduce system complexity.
FAQ
What is the maximum operating temperature range for STM32G473MBT6?
The STM32G473MBT6 is qualified for industrial operation from –40 °C to +85 °C ambient temperature. Its thermal characteristics (θJA = 42 °C/W in LQFP48) support reliable operation at full 170 MHz clock speed under continuous load when PCB layout follows ST's recommended copper pour and thermal vias guidelines.
Does STM32G473MBT6 support hardware encryption or secure boot?
Yes - it includes a true random number generator (RNG), CRC calculation unit, and securable memory area with proprietary code readout protection (PCROP). While it lacks a dedicated cryptographic accelerator (e.g., AES engine), PCROP enables secure bootloader isolation and firmware IP protection against unauthorized readout.
Can the CORDIC unit perform hyperbolic functions or square root operations?
No - the CORDIC accelerator in STM32G473MBT6 is configured exclusively for circular (sin/cos/atan) and linear (multiply/add) modes per ST's RM0440 reference manual. Hyperbolic and square root functions are not implemented in hardware and must be computed in software using CMSIS-Math or custom approximations.
How many independent PWM outputs can be generated simultaneously on STM32G473MBT6?
Up to 24 independent PWM outputs are possible: TIM1/TIM8/TIM20 each provide 8 complementary channels (16 total), plus TIM2/TIM3/TIM4/TIM5 offer additional 8 channels (non-complementary). All timers support center-aligned mode, dead-time insertion, and synchronization - sufficient for dual 3-phase inverter control or multi-zone lighting systems.
STM32G473MBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 80-LQFP
- Series:
- STM32G4
- Packaging:
- Bulk
- 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:
- 66
- 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 41x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473MBT6 FAQ
1.How can I place an order for STM32G473MBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473MBT6 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 STM32G473MBT6 reliable?
The price and inventory of STM32G473MBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473MBT6 is usually 5 days.
3.What payment methods are accepted for STM32G473MBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473MBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473MBT6?
STM32G473MBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473MBT6 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 STM32G473MBT6?
For technical support, including STM32G473MBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473MBT6 requirements.
6.How does Aetrix verify that STM32G473MBT6 is sourced from the original manufacturer or authorized distributors?
All STM32G473MBT6 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 STM32G473MBT6 meets industry standards.
7.What is the process for return or replacement of STM32G473MBT6?
All STM32G473MBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473MBT6, 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 STM32G473MBT6 part is unused and in its original packaging.
Return procedure for STM32G473MBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G473MBT6 Tags
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