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STMicroelectronics STM32G474CCU3
- Part No.:
- STM32G474CCU3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
STM32G474CCU3.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 48UFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,181
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Product details
Overview
STM32G474CCU3 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 96 KB SRAM (including 32 KB CCM-SRAM with parity), and integrated analog peripherals including 5×12-bit ADCs (0.25 µs conversion), 7×12-bit DACs, 6 operational amplifiers, and a high-resolution timer (HRTIM) with 184 ps resolution. It targets motor control, digital power conversion, and industrial sensing applications requiring deterministic real-time response.
For engineers reviewing the STM32G474CCU3 datasheet, STM32G474CCU3 pinout, STM32G474CCU3 application, or STM32G474CCU3 equivalent, key selection considerations include HRTIM timing precision for PWM generation, CORDIC/FMAC hardware acceleration for real-time math, dual-bank Flash read-while-write capability, 5 V-tolerant I/O support, and FDCAN 2.0B/FD interface readiness for automotive and industrial networks.
Technical Context
The STM32G474CCU3 implements an adaptive real-time accelerator (ART Accelerator) enabling zero-wait-state execution from Flash memory, critical for deterministic interrupt latency in motor control loops. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.
It integrates three independent FDCAN controllers compliant with ISO 11898-1:2015 (FD mode), supporting flexible data-rate up to 5 Mbit/s, alongside a dedicated USB Type-C™/Power Delivery controller (UCPD) with hardware PD protocol engine - both essential for next-generation industrial gateways and programmable power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions; enables floating-point math and signal processing in real time without software emulation. |
| Max Clock Frequency | 170 MHz (213 DMIPS); delivers high computational throughput for closed-loop control algorithms with sub-microsecond jitter. |
| Flash Memory | 512 KB with ECC and dual-bank architecture; supports seamless firmware updates via read-while-write and secure code protection (PCROP). |
| SRAM | 96 KB total: 32 KB CCM-SRAM (parity-checked, instruction/data bus), 64 KB general-purpose SRAM (first 32 KB parity-checked); ensures data integrity in safety-critical routines. |
| HRTIM Resolution | 184 ps timing resolution across 6x16-bit counters; enables ultra-precise dead-time insertion and multi-phase PWM synchronization for SiC/GaN inverters. |
| Analog Peripherals | 5×12-bit ADCs (42-channel, 0.25 µs), 7×12-bit DACs (3 buffered external @1 MSPS), 6 op-amps (PGA mode), 7 comparators; supports sensor fusion and analog front-end integration without external ICs. |
| Communication | 3×FDCAN FD, 5×USART/LPUART, 4×I²C (Fast Mode Plus), 4×SPI, USB FS + UCPD; provides native CAN FD networking and USB-C PD negotiation in a single chip. |
Pinout & Package
STM32G474CCU3 is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), optimized for compact industrial and motor drive PCB layouts with thermal pad for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog rail enables clean ADC/DAC reference and reduces noise coupling. |
| VSS, VSSA | Ground return | Dedicated analog ground plane required; separation prevents digital switching noise from degrading 12-bit analog accuracy. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 fast I/Os; most support 5 V tolerance and remappable alternate functions for flexible peripheral routing. |
| PHRTIM_CH1A–CH6B | HRTIM output channels | Dedicated pins for ultra-high-resolution complementary PWM outputs with programmable dead time and fault protection. |
| PA11/PA12 | USB DP/DM | Integrated USB 2.0 full-speed transceiver; eliminates need for external PHY in cost-sensitive embedded USB devices. |
| PD0/PD1 | FDCAN1_RX/FDCAN1_TX | Direct CAN FD physical layer interface; supports bit rates up to 5 Mbit/s with built-in protocol handling and error counters. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric computation (sin/cos/atan) in <100 ns; offloads CPU for real-time vector control (FOC) in motor drives. |
| FMAC unit | Filter mathematical accelerator supporting biquad IIR and FIR filtering at runtime; enables adaptive digital power supply compensation without CPU overhead. |
| VCAP pin | External capacitor connection for internal LDO stabilization; improves voltage regulation stability under dynamic load conditions in power-conversion applications. |
| UCPD controller | Integrated USB Type-C™ Power Delivery PHY and protocol engine; supports sink/source role negotiation and VBUS voltage control without external PD controller IC. |
| Temperature sensor | Calibrated on-chip sensor (±1.5°C accuracy); enables real-time thermal monitoring of MCU die for overtemperature shutdown in high-power density designs. |
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 via HRTIM, current/voltage sensing via synchronized ADC sampling. Use Value: 184 ps HRTIM resolution enables <10 ns dead-time accuracy, minimizing shoot-through risk in SiC-based inverters. | Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and digital communication (PMBus). IC Role / Device Role / Timing Role: Digital controller managing PWM duty cycle, voltage/current loop regulation, and FDCAN/UART telemetry reporting. Use Value: CORDIC + FMAC accelerators reduce CPU load by >40% during real-time filter and trigonometric computations in closed-loop power stages. |
| Automotive Body Electronics | Programmable USB-C Power Hub |
Use Scenario: Central body control module managing lighting, window lift, and seat position with CAN FD diagnostics. IC Role / Device Role / Timing Role: Main application processor interfacing with 3×FDCAN buses, driving LIN/UART peripherals, and executing safety-monitoring routines. Use Value: Dual-bank Flash allows A/B firmware swapping during vehicle OTA updates without system downtime. | Use Scenario: Multi-port USB-C hub with programmable power delivery (PPD) and display alt-mode negotiation. IC Role / Device Role / Timing Role: UCPD controller managing PD contract negotiation, VBUS switching, and SBU/CC line monitoring per port. Use Value: Integrated UCPD eliminates external PD controller, reducing BOM count and PCB area while supporting USB PD 3.0 specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | LQFP64 package (64-pin), 512 KB Flash, same core/peripherals; adds more GPIOs and ADC channels vs. UFQFPN48. | Better suited for designs requiring >48 I/Os or additional analog inputs (e.g., multi-sensor industrial nodes). | Select when board layout allows larger footprint and higher pin count is needed for expansion. |
| STM32G431CBU3 | UFQFPN48 package, but only 128 KB Flash, no HRTIM, no CORDIC/FMAC, 3×FDCAN reduced to 1×CAN 2.0B. | Targeted at cost-sensitive motor control where ultra-high-resolution PWM or advanced math acceleration is unnecessary. | Choose for simpler BLDC drives or basic power supplies where BOM cost outweighs performance headroom. |
Compared with STM32G474RET6, the STM32G474CCU3 trades I/O count and package size for compactness and thermal efficiency; versus STM32G431CBU3, it delivers significantly higher analog/motor control capability at modest cost premium - making it optimal for space-constrained, performance-critical digital power and motor systems.
Availability
STM32G474CCU3 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and qualified production-grade silicon.
Supply support for STM32G474CCU3 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 is engineered for real-time digital control applications - specifically targeting motor drives, digital power supplies, and industrial automation where high analog integration, deterministic timing, and hardware-accelerated math are mandatory.
FAQ
What is the maximum operating temperature range for STM32G474CCU3?
The STM32G474CCU3 is specified for industrial temperature range: –40 °C to +85 °C ambient. Its thermal characteristics (θJA = 42.5 °C/W in UFQFPN48) support reliable operation in enclosed enclosures with passive cooling, provided PCB copper area and VCAP decoupling meet ST's layout guidelines.
Does STM32G474CCU3 support secure boot and firmware encryption?
Yes - it includes proprietary code readout protection (PCROP), securable memory areas, and hardware AES-128 encryption engine. Secure boot is implemented via ROM-based bootloader with configurable hash verification (SHA-256) and public-key signature validation using ECDSA, enabling trusted firmware updates.
Can the HRTIM generate complementary PWM signals with programmable dead time?
Yes - the HRTIM provides six independent 16-bit timers with dedicated complementary output pairs (e.g., CH1A/CH1B), each supporting hardware-programmable dead time (184 ps resolution), fault input mapping, and emergency shutdown - all without CPU intervention, critical for IGBT/SiC gate driver safety.
Is the internal 32 kHz RC oscillator accurate enough for RTC operation without external crystal?
The internal 32 kHz RC oscillator has ±5% accuracy over temperature and voltage, making it unsuitable for precise RTC timekeeping. For calendar-grade accuracy (<±1 ppm), ST recommends using the external 32.768 kHz crystal oscillator - which is supported and calibrated in hardware via the RTC calibration register.
STM32G474CCU3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- STM32G4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 256KB (256K 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; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G474CCU3 FAQ
1.How can I place an order for STM32G474CCU3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474CCU3 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 STM32G474CCU3 reliable?
The price and inventory of STM32G474CCU3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474CCU3 is usually 5 days.
3.What payment methods are accepted for STM32G474CCU3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474CCU3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474CCU3?
STM32G474CCU3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474CCU3 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 STM32G474CCU3?
For technical support, including STM32G474CCU3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474CCU3 requirements.
6.How does Aetrix verify that STM32G474CCU3 is sourced from the original manufacturer or authorized distributors?
All STM32G474CCU3 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 STM32G474CCU3 meets industry standards.
7.What is the process for return or replacement of STM32G474CCU3?
All STM32G474CCU3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474CCU3, 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 STM32G474CCU3 part is unused and in its original packaging.
Return procedure for STM32G474CCU3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G474CCU3 Tags
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