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STMicroelectronics STM32G473CET3
- Part No.:
- STM32G473CET3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32G473CET3.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
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Product details
Overview
STM32G473CET3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at 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 DACs, six operational amplifiers, and three FDCAN controllers. It targets motor control, digital power conversion, and industrial sensing systems requiring real-time math acceleration.
For engineers reviewing the STM32G473CET3 datasheet, STM32G473CET3 pinout, STM32G473CET3 application, or STM32G473CET3 equivalent, key selection criteria include its CORDIC/FMAC hardware accelerators for trigonometric and filtering operations, 5 V-tolerant GPIOs across 107 pins, dual-bank read-while-write Flash, and UCPD interface for USB Type-C™ power delivery control.
Technical Context
The STM32G473CET3 implements an Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator 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.
It integrates dedicated math hardware: CORDIC for sine/cosine/log/sqrt and FMAC for FIR/IIR filter acceleration. Analog subsystem includes 5 × 12-bit ADCs (up to 42 channels, 16-bit oversampling), 7 × 12-bit DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), and 6 rail-to-rail op-amps configurable as programmable-gain amplifiers (PGA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency, 213 DMIPS performance |
| Memory | 512 KB Flash (ECC, dual-bank RWW), 96 KB SRAM + 32 KB CCM SRAM with parity |
| Analog Peripherals | 5 × 12-bit ADCs (0.25 µs, up to 42 ch, 16-bit w/oversampling), 7 × 12-bit DACs |
| Math Accelerators | CORDIC engine for trigonometric/log/sqrt; FMAC for real-time FIR/IIR filtering |
| Timers & Control | 14 timers including 3 × 16-bit advanced motor control timers with dead-time generation |
| Communication | 3 × FDCAN (flexible data-rate), 5 × USART/UART, 4 × I²C, 4 × SPI, USB FS, UCPD, SAI |
| Supply & Power | 1.71–3.6 V operation; sleep/stop/standby/shutdown modes; VREFBUF with 2.048/2.5/2.9 V outputs |
Pinout & Package
STM32G473CET3 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for compact industrial and motor control PCB layouts with thermal pad for enhanced dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V input; separate analog domain ensures ADC/DAC accuracy |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces noise coupling into sensitive analog circuits |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 pins; most support 5 V tolerance and external interrupt mapping |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; compatible with standard reset circuits |
| BOOT0 | Boot mode select | Configures boot source (system memory, Flash, or SRAM) at power-on |
| OSC_IN / OSC_OUT | External crystal interface | Supports 4–48 MHz quartz oscillator for precise clocking and jitter-sensitive applications |
| UCPD1_DB, UCPD1_CC1 | USB Type-C™ CC line interface | Direct connection to USB-C connector for power role detection and PD communication |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware computation of sin/cos/tan/atan/log/sqrt in <100 cycles - eliminates software overhead in motor FOC or sensor fusion |
| FMAC unit | Single-cycle MAC operations on 32-bit data - enables real-time 200+ tap FIR filtering for digital power control loops |
| Dual-bank Flash with RWW | Execute code from Bank 1 while erasing/writing Bank 2 - enables seamless firmware updates without halting operation |
| 6 × rail-to-rail op-amps | All terminals accessible; configurable as PGA with gains up to 32 - replaces external signal-conditioning ICs in current/voltage sensing |
| UCPD peripheral | Integrated USB Power Delivery controller with CC line monitoring - eliminates need for external PD PHY in USB-C embedded chargers |
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: Real-time execution of FOC algorithm, PWM generation with <100 ns dead-time precision, and current sensing via integrated ADCs/op-amps. Use Value: CORDIC computes Clarke/Park transforms in hardware; FMAC filters current feedback; 3× advanced timers deliver synchronized 6-channel PWM with emergency stop. | Use Scenario: Isolated AC-DC and DC-DC converters with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Digital controller managing LLC resonant timing, synchronous rectification, and isolated feedback via opto-coupler or digital isolator interfaces. Use Value: Dual-bank Flash enables safe firmware updates during operation; 5× ADCs monitor input/output voltages/currents simultaneously; UCPD manages USB-C PD negotiation for programmable output. |
| Programmable Logic Controller (PLC) | Smart Sensor Hub |
Use Scenario: Compact DIN-rail PLC modules handling discrete I/O, analog inputs, and fieldbus communication (CAN/RS-485). IC Role / Device Role / Timing Role: Central controller executing ladder logic, scanning I/O, and managing deterministic communication stacks. Use Value: 107 GPIOs with 5 V tolerance simplify direct interfacing to industrial sensors/actuators; 3× FDCAN support multi-node CAN FD networks; RTC with alarm enables scheduled tasks. | Use Scenario: Multi-sensor node aggregating temperature, pressure, humidity, and inertial data for predictive maintenance in IIoT gateways. IC Role / Device Role / Timing Role: Sensor fusion hub performing local preprocessing, time-synchronized sampling, and secure edge analytics before cloud upload. Use Value: Internal VREFBUF provides stable reference for all ADCs; RNG + CRC enable secure OTA updates; LPUART + low-power timers extend battery life in wireless nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431CBT6 | Same G4 architecture but 128 KB Flash, no CORDIC/FMAC, 32 KB SRAM, 48-pin LQFP only | Lacks hardware math acceleration; suitable for simpler motor control or basic HMI where real-time filtering/transform not required | Select when cost sensitivity outweighs need for advanced math acceleration and larger memory |
| STM32F303RET6 | Cortex-M4F at 72 MHz, 512 KB Flash, no CORDIC/FMAC, 64 KB SRAM, 64-pin LQFP | Lower CPU frequency and missing UCPD/FDCAN limit suitability for USB-C PD or high-speed CAN FD applications | Choose for legacy F3-based designs needing pin-compatible upgrade with modest performance gain |
Compared with STM32G431CBT6, the STM32G473CET3 delivers 2.4× higher DMIPS and hardware-accelerated math essential for real-time control; versus STM32F303RET6, it adds FDCAN, UCPD, and deterministic 170 MHz timing critical for next-gen digital power and USB-C infrastructure.
Availability
STM32G473CET3 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 lifecycle assurance, and full traceability.
Supply support for STM32G473CET3 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 products for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, cost-sensitive embedded applications demanding rich analog integration, real-time math acceleration, and USB-C power delivery capability - bridging the gap between mainstream and high-end MCUs.
FAQ
What is the maximum operating frequency and associated performance metric of the STM32G473CET3?
The STM32G473CET3 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved using the ART Accelerator for zero-wait-state Flash execution and includes full DSP instruction support and single-precision floating-point unit (FPU) for real-time signal processing.
Does the STM32G473CET3 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, logarithmic, square root, and inverse functions in under 100 cycles; the FMAC performs single-cycle multiply-accumulate operations on 32-bit data, accelerating FIR/IIR filtering and vector dot products for digital power and motor control.
What analog peripherals are integrated, and how do they support precision sensing?
The device integrates five 12-bit ADCs (0.25 µs conversion, up to 42 channels, 16-bit resolution with hardware oversampling), seven 12-bit DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps usable as PGAs, and an internal voltage reference buffer (VREFBUF) with selectable 2.048 V, 2.5 V, or 2.9 V outputs - collectively enabling high-fidelity current/voltage/temperature sensing without external signal-chain components.
Is the STM32G473CET3 suitable for USB Type-C™ power delivery applications, and what peripheral enables this?
Yes - it includes a dedicated USB Type-C™ and Power Delivery controller (UCPD) peripheral with CC line monitoring, VCONN switching, and PD message handling. This allows direct implementation of USB-C sink/source/port controller functionality without external PD PHY, supporting programmable power profiles up to 100 W in compact industrial chargers and docking stations.
STM32G473CET3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 38
- Program Memory Size:
- 512KB (512K 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 20x12b; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473CET3 FAQ
1.How can I place an order for STM32G473CET3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473CET3 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 STM32G473CET3 reliable?
The price and inventory of STM32G473CET3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473CET3 is usually 5 days.
3.What payment methods are accepted for STM32G473CET3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473CET3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473CET3?
STM32G473CET3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473CET3 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 STM32G473CET3?
For technical support, including STM32G473CET3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473CET3 requirements.
6.How does Aetrix verify that STM32G473CET3 is sourced from the original manufacturer or authorized distributors?
All STM32G473CET3 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 STM32G473CET3 meets industry standards.
7.What is the process for return or replacement of STM32G473CET3?
All STM32G473CET3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473CET3, 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 STM32G473CET3 part is unused and in its original packaging.
Return procedure for STM32G473CET3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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