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STMicroelectronics STM32G474VCH3
- Part No.:
- STM32G474VCH3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
STM32G474VCH3.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
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Product details
Overview
STM32G474VCH3 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 high-resolution timer (HRTIM) with 184 ps resolution. It integrates CORDIC and FMAC hardware accelerators for real-time trigonometric and filtering computations, and targets motor control, digital power conversion, and industrial sensing applications.
For engineers reviewing the STM32G474VCH3 datasheet, STM32G474VCH3 pinout, STM32G474VCH3 application, or STM32G474VCH3 equivalent, key selection criteria include HRTIM timing precision, dual-bank Flash read-while-write capability, 5×12-bit ADCs with hardware oversampling, 7×12-bit DAC channels, and FDCAN FD support for deterministic industrial networking.
Technical Context
The STM32G474VCH3 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash memory, alongside a Memory Protection Unit (MPU) and DSP instruction set for deterministic control loops. Its interconnect matrix supports concurrent peripheral access without bus contention.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a USB 2.0 full-speed interface with LPM/BCD, and a dedicated UCPD controller for USB Type-C™ power delivery negotiation - all operating independently under the same clock domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency (213 DMIPS), MPU, DSP extensions |
| Memory | 512 KB Flash (ECC, dual-bank RWW), 96 KB SRAM (32 KB CCM + parity, 64 KB general) |
| HRTIM Resolution | 184 ps timing resolution across 6×16-bit counters; enables sub-nanosecond PWM edge placement for SiC/GaN gate driving |
| Analog Peripherals | 5×12-bit ADCs (0.25 µs conversion, up to 42 ch), 7×12-bit DACs (3 buffered @1 MSPS, 4 unbuffered @15 MSPS) |
| Communication | 3×FDCAN FD, 5×USART/UART, 4×I²C (Fast Mode Plus), 4×SPI, 1×SAI, 1×USB FS, 1×UCPD |
| Math Accelerators | CORDIC (sin/cos/tan/atan/sqrt/log), FMAC (16×16-bit MAC, 32-bit accumulator) for real-time filter execution |
| Supply Range | VDD/VDDA = 1.71 V to 3.6 V; supports single-supply operation with internal voltage reference buffer (2.048 V / 2.5 V / 2.9 V) |
Pinout & Package
STM32G474VCH3 is housed in a UFQFPN48 (7 × 7 mm) package with 48 pins, optimized for space-constrained industrial and motor control PCB layouts. Pin functions are fully defined per ST's DS12288 Rev 6, Section 4.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | Separate 1.71–3.6 V inputs; VDDA powers ADC/DAC/OPAMP/COMP; decoupling required per datasheet layout guidelines |
| VSS, VSSA | Digital & analog ground | Independent ground planes recommended to minimize noise coupling into sensitive analog peripherals |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PH0–PH1 | General-purpose I/O | Up to 107 fast I/Os; most support 5 V tolerance, external interrupt mapping, and multiple alternate functions |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-pull or open-drain assertion; supports programmable reset timing |
| BOOT0 | Boot mode selection | High at power-on selects system memory boot (for DFU); low selects user Flash; internal pull-down |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–48 MHz crystals; used for precise clock source in motor control and communication timing-critical applications |
Key Features
| Feature | Design Value |
|---|---|
| HRTIM with dead-time generation | 6 independent 16-bit timers with 184 ps resolution, programmable dead time (125 ps steps), emergency stop, and fault input synchronization |
| FDCAN FD interfaces | Three fully independent CAN FD controllers supporting flexible data-rate up to 5 Mbit/s, ideal for distributed motor drives and battery management systems |
| CORDIC + FMAC accelerators | Hardware-accelerated trigonometric and filtering operations offload CPU, enabling real-time field-oriented control (FOC) at >20 kHz loop rates |
| Rich analog subsystem | 7 rail-to-rail comparators, 6 op-amps (configurable as PGA), internal VREFBUF (2.048/2.5/2.9 V), and temperature sensor with factory calibration |
| Low-power flexibility | Four low-power modes (Sleep, Stop, Standby, Shutdown); RTC with alarm/wakeup; VBAT backup for RTC and 32 B registers |
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: Main controller executing real-time current/voltage loop, PWM generation via HRTIM, and ADC sampling synchronized to switching edges. Use Value: 184 ps HRTIM resolution enables precise dead-time compensation for SiC MOSFETs, reducing shoot-through risk and improving efficiency above 98%. |
Use Scenario: Isolated AC-DC and DC-DC converters with adaptive voltage regulation and protection. IC Role / Device Role / Timing Role: Digital controller managing multi-phase interleaved PWM, voltage/current monitoring, and fault response via FDCAN FD telemetry. Use Value: Dual-bank Flash allows seamless firmware updates during operation; CORDIC computes RMS/THD in real time without CPU overhead. |
| Smart Grid Sensing Node | Industrial PLC I/O Module |
Use Scenario: Distributed grid-edge metering node with harmonic analysis and waveform capture. IC Role / Device Role / Timing Role: High-precision acquisition engine using 5×ADCs with hardware oversampling and timestamping via RTC+LPTIM. Use Value: 16-bit effective resolution (via 256× oversampling) and internal VREFBUF ensure ±0.1% measurement accuracy across temperature. |
Use Scenario: Modular I/O expansion for programmable logic controllers handling analog/digital inputs and isolated outputs. IC Role / Device Role / Timing Role: Local intelligence hub managing sensor conditioning, isolation interface control, and CAN FD backplane communication. Use Value: 7×DACs drive analog outputs (0–10 V / 4–20 mA); 6×op-amps provide programmable gain for sensor signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | LQFP64 package (64-pin), 512 KB Flash, 96 KB SRAM - identical core/peripherals but larger footprint and more GPIOs | Better suited for designs requiring >48 I/Os or additional SPI/I²C/USART channels beyond UFQFPN48 routing limits | Select when board layout requires greater I/O count or thermal margin; same firmware compatibility |
| STM32H743VIT6 | Cortex-M7 @ 480 MHz, 2 MB Flash, 1 MB SRAM, no HRTIM; includes DSI, Ethernet, and advanced crypto | Targeted at high-throughput HMI, vision, or protocol gateway applications - not optimized for ultra-precise PWM timing | Choose only if application demands higher CPU throughput or connectivity features; not drop-in for HRTIM-dependent motor control |
Compared with STM32G474VCH3, the STM32G474RET6 offers identical functionality in a larger package for expanded I/O, while the STM32H743VIT6 trades HRTIM precision and analog density for raw compute and connectivity - making the G474VCH3 uniquely suited for cost-sensitive, space-constrained digital power and motor control.
Availability
STM32G474VCH3 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, smart grid sensing, and PLC I/O modules requiring stable component supply and long-term manufacturability.
Supply support for STM32G474VCH3 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32G4 series is designed specifically for real-time industrial control applications demanding high analog integration, deterministic timing, and mathematical acceleration - bridging the gap between mainstream and high-end MCUs.
FAQ
What is the maximum operating frequency and associated performance metric of the STM32G474VCH3?
The STM32G474VCH3 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-cycle MAC operations. The FPU enables IEEE-754-compliant floating-point computation essential for motor control algorithms.
Does the STM32G474VCH3 support hardware-accelerated mathematical functions, and how are they used in practice?
Yes - it integrates dedicated CORDIC (for sin/cos/atan/sqrt/log) and FMAC (filter mathematical accelerator) units. In practice, CORDIC replaces software-based trigonometric lookups in field-oriented control, reducing loop latency by >80%, while FMAC executes FIR/IIR filters in real time for active EMI suppression or sensor noise reduction without CPU load.
What are the key analog capabilities that differentiate the STM32G474VCH3 from other STM32 families?
It features five 12-bit ADCs (0.25 µs conversion, up to 42 channels total), seven 12-bit DACs (three buffered external, four unbuffered internal), six rail-to-rail op-amps configurable as PGAs, seven comparators, and an internal voltage reference buffer with selectable 2.048 V / 2.5 V / 2.9 V outputs - all on-chip and calibrated. This level of analog integration eliminates external signal-conditioning components in compact power and motor control designs.
Is the STM32G474VCH3 pin-compatible with other members of the STM32G474 family, and what package options exist?
No - the STM32G474VCH3 uses the UFQFPN48 (7 × 7 mm) package and is not pin-compatible with LQFP64, LQFP100, or WLCSP variants. Other package options include LQFP48, LQFP64, LQFP100, LQFP128, WLCSP81, TFBGA100, and UFBGA121 - each with distinct pinouts and peripheral mappings documented in ST's DS12288 Rev 6, Section 4.
STM32G474VCH3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-TFBGA
- Series:
- STM32G4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 86
- 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 42x12b SAR; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G474VCH3 FAQ
1.How can I place an order for STM32G474VCH3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474VCH3 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 STM32G474VCH3 reliable?
The price and inventory of STM32G474VCH3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474VCH3 is usually 5 days.
3.What payment methods are accepted for STM32G474VCH3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474VCH3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474VCH3?
STM32G474VCH3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474VCH3 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 STM32G474VCH3?
For technical support, including STM32G474VCH3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474VCH3 requirements.
6.How does Aetrix verify that STM32G474VCH3 is sourced from the original manufacturer or authorized distributors?
All STM32G474VCH3 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 STM32G474VCH3 meets industry standards.
7.What is the process for return or replacement of STM32G474VCH3?
All STM32G474VCH3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474VCH3, 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 STM32G474VCH3 part is unused and in its original packaging.
Return procedure for STM32G474VCH3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G474VCH3 Tags
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