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STMicroelectronics STM32G474CET3
- Part No.:
- STM32G474CET3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32G474CET3.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
STM32G474CET3 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, 96 KB SRAM (including 32 KB CCM with parity), and integrated analog peripherals including six operational amplifiers, seven 12-bit DACs, five 12-bit ADCs (0.25 µs conversion), and a 184 ps resolution HRTIM - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G474CET3 datasheet, STM32G474CET3 pinout, STM32G474CET3 application, or STM32G474CET3 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, hardware math accelerators (CORDIC + FMAC), FDCAN support for automotive-grade communication, and 5 V-tolerant I/Os enabling direct interface with legacy logic levels.
Technical Context
The STM32G474CET3 implements an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from Flash memory, paired with a Memory Protection Unit (MPU) for secure task isolation in RTOS environments. Its interconnect matrix supports concurrent high-bandwidth peripheral access without bus contention.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (FD mode), a USB 2.0 full-speed interface with LPM/BCD, and a dedicated UCPD controller for USB Type-C™ power delivery negotiation - all synchronized via a flexible clock tree with four oscillators (4–48 MHz HSE, 32 kHz LSE, 16 MHz/32 kHz RC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling real-time signal processing and floating-point control loops. |
| Max Clock Frequency | 170 MHz (213 DMIPS), supported by ART Accelerator for deterministic Flash execution in time-critical applications. |
| Flash Memory | 512 KB with ECC, dual-bank architecture allowing seamless firmware updates via read-while-write operation. |
| SRAM | 96 KB total: 32 KB CCM SRAM (parity-checked, instruction/data bus), 64 KB general-purpose SRAM (first 32 KB parity-checked). |
| Analog Peripherals | 5 × 12-bit ADCs (42 channels, 0.25 µs), 7 × 12-bit DACs (3 buffered external @ 1 MSPS), 6 op-amps (PGA-capable), 7 comparators. |
| Timers | 17 timers including HRTIM (6×16-bit counters, 184 ps resolution), 3 advanced motor-control timers with dead-time generation, and LPTIM for ultra-low-power timing. |
| Communication | 3×FDCAN, 5×USART/UART, 4×I²C (Fast Mode Plus), 4×SPI, 1×SAI, 1×USB FS, 1×UCPD - supporting mixed-signal system integration. |
Pinout & Package
STM32G474CET3 is packaged in LQFP48 (7 × 7 mm, 0.5 mm pitch), a RoHS-compliant surface-mount package suitable for automated assembly and thermal management in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog rail enables noise-sensitive ADC/DAC performance. |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces coupling between digital switching noise and analog precision circuits. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | Up to 107 fast I/Os; multiple ports support 5 V tolerance, critical for interfacing with legacy 5 V peripherals. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors and push-button recovery. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, Flash, or SRAM); essential for bootloader implementation and field firmware recovery. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceivers with integrated termination resistors - no external components required. |
| PA13/PA14 | SWDIO/SWCLK | Serial Wire Debug interface for programming and real-time debugging without JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| HRTIM with 184 ps resolution | Enables precise PWM edge placement for multi-phase motor drives and resonant LLC converters requiring sub-nanosecond timing control. |
| CORDIC + FMAC accelerators | Offloads trigonometric and filtering computations from CPU, reducing interrupt latency and improving loop throughput in digital power control. |
| Dual-bank Flash with PCROP | Supports secure over-the-air updates and firmware rollback while protecting proprietary code sections via programmable readout protection. |
| 6 op-amps with PGA mode | All op-amp terminals accessible externally, enabling configurable gain stages for sensor signal conditioning without external components. |
| FDCAN FD support (up to 5 Mbps) | Provides automotive-grade communication bandwidth and protocol flexibility for next-generation EV battery management and ADAS subsystems. |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Closed-loop control of 3-phase PMSM/BLDC motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Main controller executing Field-Oriented Control (FOC) algorithms, managing gate drivers via HRTIM PWM outputs with synchronized ADC sampling. Use Value: 184 ps HRTIM resolution ensures <1 ns dead-time accuracy across temperature, minimizing shoot-through risk in SiC/GaN inverter stages. |
Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and digital compensation. IC Role / Device Role / Timing Role: Digital controller implementing PID and predictive algorithms using CORDIC/FMAC, with real-time ADC feedback and DAC-based reference generation. Use Value: Hardware-accelerated math units reduce control loop latency to <1 µs, enabling >1 MHz switching frequencies in GaN-based SMPS designs. |
| Smart Energy Metering | Industrial PLC I/O Module |
Use Scenario: High-accuracy polyphase energy meter with harmonic analysis and tamper detection. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, RMS/harmonic calculation, RTC timestamping, and secure data logging. Use Value: Five independent 12-bit ADCs with hardware oversampling deliver 16-bit effective resolution at 10 kSPS per channel for Class 0.2 metering compliance. |
Use Scenario: Modular digital input/output expansion for DIN-rail mounted PLCs with diagnostics and isolation. IC Role / Device Role / Timing Role: Local intelligence node managing opto-isolated inputs, relay drivers, and CAN/FDCAN fieldbus communication. Use Value: 5 V-tolerant GPIOs directly interface with standard 24 V industrial sensors/actuators; FDCAN ensures deterministic messaging in noisy factory environments. |
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 core but 128 KB Flash, no HRTIM, only 1 ADC, no FDCAN. | Suitable for cost-sensitive motor control where 184 ps timing and multi-channel analog are not required. | Select when BOM cost reduction outweighs need for high-resolution PWM and advanced analog integration. |
| STM32H743VIT6 | Dual-core (Cortex-M7/M4), 2 MB Flash, 1 MB SRAM, higher clock (480 MHz), no HRTIM but more general-purpose timers. | Better for complex HMI + control co-processing; lacks G4's analog density and FDCAN FD timing determinism. | Choose for applications needing Linux-capable compute headroom alongside real-time control - not drop-in replacement. |
Compared with STM32G431KBT6, the STM32G474CET3 delivers 4× Flash, HRTIM, and FDCAN FD for deterministic motor/power control; versus STM32H743VIT6, it trades raw compute for superior analog integration and sub-nanosecond PWM fidelity in compact form factor.
Availability
STM32G474CET3 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, smart metering, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for STM32G474CET3 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, analog-rich embedded applications - specifically engineered for digital power, motor control, and precision measurement where real-time determinism and hardware acceleration are critical.
FAQ
What is the maximum operating temperature range for STM32G474CET3?
The STM32G474CET3 is rated for industrial temperature range: –40 °C to +85 °C ambient, validated per ST's qualification standards (JEDEC JESD47). Thermal derating begins above 70 °C ambient depending on PCB layout and power dissipation; junction temperature must remain below 125 °C.
Does STM32G474CET3 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 and secure SRAM enable basic secure boot and firmware integrity verification.
Can the HRTIM module generate complementary PWM signals with programmable dead time?
Yes - the HRTIM includes dedicated dead-time insertion units per output channel, configurable down to 184 ps resolution. It supports synchronous update of duty cycle and dead time across all 12 PWM outputs, essential for three-phase inverter gate drive synchronization.
Is the STM32G474CET3 pin-compatible with other STM32G4 variants in LQFP48?
No - STM32G474CET3 uses the LQFP48 package but is not pin-compatible with lower-density G4 parts (e.g., G431) due to differing peripheral mappings and alternate function assignments. Pin compatibility exists only within the same G474 subfamily (e.g., STM32G474CBT3, STM32G474CET3) sharing identical die and pinout.
STM32G474CET3 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®-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:
- 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:
STM32G474CET3 FAQ
1.How can I place an order for STM32G474CET3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474CET3 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 STM32G474CET3 reliable?
The price and inventory of STM32G474CET3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474CET3 is usually 5 days.
3.What payment methods are accepted for STM32G474CET3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474CET3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474CET3?
STM32G474CET3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474CET3 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 STM32G474CET3?
For technical support, including STM32G474CET3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474CET3 requirements.
6.How does Aetrix verify that STM32G474CET3 is sourced from the original manufacturer or authorized distributors?
All STM32G474CET3 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 STM32G474CET3 meets industry standards.
7.What is the process for return or replacement of STM32G474CET3?
All STM32G474CET3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474CET3, 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 STM32G474CET3 part is unused and in its original packaging.
Return procedure for STM32G474CET3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G474CET3 Tags
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