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STMicroelectronics STM32G473CEU3
- Part No.:
- STM32G473CEU3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G473CEU3.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:3,725
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Product details
Overview
STM32G473CEU3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash (ECC-enabled), 128 KB SRAM (96 KB + 32 KB CCM), and 170 MHz max CPU frequency (213 DMIPS). It integrates dual-bank read-while-write Flash, CORDIC/FMAC math accelerators, 5×12-bit ADCs (42-channel, 0.25 µs), 7×12-bit DACs, 6 operational amplifiers, and 3 FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473CEU3 datasheet, STM32G473CEU3 pinout, STM32G473CEU3 application, or STM32G473CEU3 equivalent, key selection criteria include its 48-pin UFQFPN package, 1.71–3.6 V supply range, hardware parity on first 32 KB SRAM, 3×FDCAN support for automotive-grade communication, and integrated UCPD for USB Type-C™ power delivery control.
Technical Context
The STM32G473CEU3 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 memory subsystem includes dual-bank Flash with PCROP and securable OTP, plus CCM SRAM with parity for safety-critical code/data.
Analog integration comprises five independent 12-bit ADCs with hardware oversampling up to 16-bit resolution, three buffered external DACs (1 MSPS), four unbuffered internal DACs (15 MSPS), six rail-to-rail op-amps configurable as PGAs, and a programmable VREFBUF (2.048 V / 2.5 V / 2.9 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions; enables real-time signal processing and floating-point math without software emulation. |
| Max Clock Frequency | 170 MHz (213 DMIPS); supports high-speed control loops in motor drives and digital power supplies. |
| Flash Memory | 512 KB with ECC, dual-bank architecture, and PCROP; allows safe firmware updates and secure code protection. |
| SRAM | 128 KB total: 96 KB general-purpose + 32 KB CCM SRAM with hardware parity; supports ASIL-B functional safety requirements. |
| Analog Peripherals | 5×12-bit ADCs (42 channels, 0.25 µs conversion), 7×12-bit DACs (3 buffered/1 MSPS, 4 unbuffered/15 MSPS), 6 op-amps, 7 comparators; enables sensor fusion and closed-loop analog control. |
| Communication Interfaces | 3×FDCAN (flexible data-rate), 5×USART/UART, 4×I²C (Fast Mode Plus), 4×SPI, USB FS with LPM/BCD, UCPD; supports automotive diagnostics, industrial networking, and USB-C PD applications. |
| Math Accelerators | CORDIC (trigonometric functions) and FMAC (filtering); offloads CPU for motor control algorithms and real-time filtering without latency penalty. |
Pinout & Package
STM32G473CEU3 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad. This compact, thermally enhanced package supports high-density PCB layouts and efficient heat dissipation in space-constrained industrial and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | 1.71–3.6 V operation; separate analog domain ensures precision ADC/DAC performance with low-noise biasing. |
| VSS, VSSA | Digital & analog ground | Independent grounding paths minimize coupling noise between digital switching and sensitive analog circuits. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1 | General-purpose I/O | Up to 107 fast I/Os; most are 5 V tolerant, supporting mixed-voltage system interfacing and robust industrial signal conditioning. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors and watchdog timeout recovery. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, embedded Flash, or SRAM); critical for field firmware recovery and bootloader activation. |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–48 MHz crystals; enables precise clock sourcing for USB, CAN, and RTC timing compliance. |
| UCPD1_CC1 / UCPD1_CC2 | USB Type-C™ configuration channel | Dedicated pins for CC line monitoring and USB PD negotiation; eliminates need for external UCPD transceivers. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-Time Accelerator (ART) | Enables 0-wait-state execution from Flash at 170 MHz, eliminating instruction fetch stalls and ensuring deterministic real-time response. |
| CORDIC + FMAC hardware accelerators | Accelerates trigonometric (sin/cos/tan) and FIR/IIR filter computations in <100 ns per operation - critical for PMSM FOC and digital power control. |
| Dual-bank Flash with PCROP | Allows seamless firmware updates via bank swapping while protecting secure bootloader and cryptographic keys from unauthorized readout. |
| Integrated UCPD controller | Handles USB Type-C™ cable detection, role negotiation (DFP/UFP), and Power Delivery messaging without external PD PHY - reduces BOM count and layout complexity. |
| Hardware parity on CCM SRAM | Provides single-bit error detection in 32 KB tightly coupled memory used for time-critical ISR stacks and control variables - supports IEC 61508 SIL2 and ISO 26262 ASIL-B. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
|
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 controller executing FOC algorithm, PWM generation (TIM1/TIM8 advanced timers), ADC sampling synchronization, and current/voltage sensing. Use Value: CORDIC computes sine/cosine for rotor angle transformation in <200 ns; FMAC filters current feedback at 100 kHz loop rate with zero CPU overhead. |
Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Primary digital controller managing PWM duty cycle, voltage/current loop regulation, soft-start, OVP/OCP, and communication via PMBus over I²C. Use Value: Dual 12-bit ADCs sample primary and secondary side signals simultaneously; 7 DACs generate precise reference voltages and analog monitor outputs. |
| USB-C Power Delivery System | Industrial Sensor Hub |
|
Use Scenario: USB-C port controller in docking stations and portable chargers supporting 100 W PD contracts and alternate modes. IC Role / Device Role / Timing Role: UCPD protocol engine handling BMC encoding/decoding, VCONN switching, and PD message parsing; coordinated with USB FS interface. Use Value: Integrated UCPD eliminates external transceiver; hardware CRC and message buffering ensure reliable PD negotiation under EMI stress. |
Use Scenario: Multi-sensor acquisition node aggregating temperature, pressure, vibration, and analog process signals in factory automation. IC Role / Device Role / Timing Role: Central data concentrator with simultaneous 12-bit ADC sampling across 42 channels, op-amp signal conditioning, and UART/LPUART telemetry uplink. Use Value: 5 independent ADCs enable synchronized sampling of multiple sensor domains; 32 KB CCM SRAM buffers raw data before compression and transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G431CBU6 | 256 KB Flash, 32 KB SRAM, no CORDIC/FMAC, 1×FDCAN, 36-pin UFQFPN | Limited math acceleration and analog channel count; suitable for cost-sensitive basic motor control only | Select when BOM cost is prioritized over computational headroom and multi-sensor concurrency. |
| STM32H743VIT6 | 480 MHz Cortex-M7, 2 MB Flash, 1 MB RAM, dual-core option, no UCPD, LQFP100 | Higher performance but larger footprint and no native USB-C PD support; requires external UCPD IC | Choose for ultra-high-speed control (e.g., servo drives) where UCPD is handled separately and board area is not constrained. |
Compared with STM32G431CBU6, the STM32G473CEU3 delivers 2× Flash, 4× SRAM, hardware math acceleration, and triple FDCAN - essential for complex real-time control. Versus STM32H743VIT6, it offers integrated UCPD and smaller 48-pin packaging at lower power, trading peak throughput for system-level integration and thermal efficiency.
Availability
STM32G473CEU3 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, USB-C power delivery systems, and sensor hub designs requiring stable component supply across extended product lifecycles.
Supply support for STM32G473CEU3 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series targets high-performance, resource-rich embedded applications demanding real-time control, rich analog integration, and USB-C connectivity - optimized for digital power, motor control, and smart industrial edge nodes.
FAQ
What is the maximum operating temperature range for STM32G473CEU3?
The STM32G473CEU3 is qualified for industrial temperature range: –40 °C to +85 °C ambient. Its thermal resistance (θJA) is 41.5 °C/W in the UFQFPN48 package, and derating begins above 85 °C ambient per ST's datasheet Section 6.11. Operation beyond this range requires thermal simulation and may void warranty.
Does STM32G473CEU3 support hardware encryption for secure boot?
Yes - it includes a true random number generator (RNG), CRC calculation unit, and securable memory areas with proprietary code readout protection (PCROP). While it lacks a dedicated cryptographic accelerator (e.g., AES engine), PCROP and secure SRAM regions enable trusted boot implementations compliant with IEC 62443 Level 1.
Can STM32G473CEU3 drive 5 V logic directly?
Up to 91 of its GPIOs are 5 V tolerant (including all analog inputs and most digital I/Os), meaning they safely accept 5 V signals while powered from 3.3 V. However, output voltage is clamped to VDD (max 3.6 V), so external level shifters are required to drive true 5 V loads.
Is the UCPD controller in STM32G473CEU3 compliant with USB PD 3.0 specification?
Yes - the integrated UCPD peripheral supports USB Power Delivery 3.0 Rev 1.2, including structured VDMs, SOP'/SOP" messages, and Fast Role Swap. It handles BMC physical layer signaling, collision avoidance, and PD policy engine tasks, verified per ST Application Note AN5086 and USB-IF certification reports.
STM32G473CEU3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- 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:
- 42
- 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 21x12b SAR; D/A 7x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473CEU3 FAQ
1.How can I place an order for STM32G473CEU3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473CEU3 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 STM32G473CEU3 reliable?
The price and inventory of STM32G473CEU3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473CEU3 is usually 5 days.
3.What payment methods are accepted for STM32G473CEU3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473CEU3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473CEU3?
STM32G473CEU3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473CEU3 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 STM32G473CEU3?
For technical support, including STM32G473CEU3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473CEU3 requirements.
6.How does Aetrix verify that STM32G473CEU3 is sourced from the original manufacturer or authorized distributors?
All STM32G473CEU3 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 STM32G473CEU3 meets industry standards.
7.What is the process for return or replacement of STM32G473CEU3?
All STM32G473CEU3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473CEU3, 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 STM32G473CEU3 part is unused and in its original packaging.
Return procedure for STM32G473CEU3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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