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STMicroelectronics STM32G474VCH3TR
- Part No.:
- STM32G474VCH3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
STM32G474VCH3TR.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,397
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Product details
Overview
STM32G474VCH3TR 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 hardware accelerators (CORDIC, FMAC). It delivers 184 ps resolution on its HRTIM for precision motor control in industrial inverters.
For engineers reviewing the STM32G474VCH3TR datasheet, STM32G474VCH3TR pinout, STM32G474VCH3TR application, or STM32G474VCH3TR equivalent, key selection criteria include Hi-Res timer capability, dual-bank Flash read-while-write support, FDCAN FD interface compliance, and 5 V-tolerant GPIOs for mixed-voltage system interfacing.
Technical Context
This MCU integrates an Adaptive Real-Time Accelerator (ART) enabling zero-wait-state execution from Flash at 170 MHz, alongside a Memory Protection Unit (MPU) and securable memory regions including PCROP and OTP. Its analog subsystem includes five 12-bit ADCs (0.25 µs conversion), seven 12-bit DAC channels (three buffered external at 1 MSPS), six rail-to-rail op-amps configurable as PGAs, and a programmable VREFBUF (2.048 V / 2.5 V / 2.9 V).
The timing architecture comprises a 17-timer suite: one HRTIM (6×16-bit counters, 184 ps resolution), three advanced motor-control timers (TIM1/TIM8/TIM20) with dead-time generation and emergency stop, plus FDCAN controllers supporting flexible data-rate (up to 5 Mbps) for automotive and industrial networking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 170 MHz max frequency → enables real-time DSP and control loops without external co-processor |
| Flash Memory | 512 KB with ECC and dual-bank read-while-write → supports safe firmware updates and secure boot validation |
| SRAM | 96 KB total: 32 KB CCM (parity-checked), 64 KB general-purpose → separates critical code/data from bulk buffers |
| Analog Peripherals | 5×12-bit ADCs (42 ch, 0.25 µs), 7×12-bit DACs (3 buffered ext., 1 MSPS), 6 op-amps (PGA mode) → enables closed-loop sensor signal chain integration |
| High-Resolution Timer | HRTIM with 184 ps resolution and 12 PWM outputs → achieves sub-nanosecond timing accuracy for digital power control |
| Communication | 3×FDCAN FD, 5×USART, 4×SPI, USB FS + UCPD → supports CAN FD fieldbus, isolated serial comms, and USB-C PD negotiation |
| Supply Range | VDD/VDDA: 1.71 V to 3.6 V → compatible with single Li-ion or regulated 3.3 V systems without level-shifting |
Pinout & Package
STM32G474VCH3TR uses a UFQFPN48 (7 × 7 mm) package with 48 pins, optimized for compact industrial and motor control PCB layouts. Pin functions are validated per ST's DS12288 Rev 6, Section 4.2 (LQFP48) and Section 4.1 (UFQFPN48) - both share identical pin mapping and alternate function assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/analog domain decoupling; VDDA must be ≥ VDD for ADC/DAC integrity |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PH0–PH1 | General-purpose I/O | Up to 107 fast I/Os; 5 V tolerant on selected pins (e.g., PA0–PA15, PB0–PB15) → simplifies interface to legacy 5 V peripherals |
| PA12/PA11 (USB_DM/USB_DP) | USB 2.0 full-speed interface | Integrated transceiver with LPM/BCD support → enables HID, CDC, and DFU without external PHY |
| PA13/PA14/SWCLK/SWDIO | Serial Wire Debug (SWD) | 2-pin debug interface with SWJ-DP → allows in-circuit programming and real-time trace via standard J-Link or ST-Link |
| PC13/PC14/PC15 | RTC oscillator inputs | Supports 32.768 kHz crystal with calibration → enables precise calendar RTC and low-power wake-up from standby |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric computation (sin/cos/tan/atan) → reduces CPU load by >90% vs software math libraries in motor FOC |
| FMAC unit | Dedicated filter math accelerator for FIR/IIR → enables real-time 20+ channel sensor filtering at 170 MHz without DMA bottlenecks |
| HRTIM resolution | 184 ps timing granularity across 12 PWM outputs → supports multi-phase interleaved SMPS with <1 ns phase jitter |
| FDCAN FD support | Flexible Data Rate up to 5 Mbps → doubles bandwidth over classical CAN for high-speed diagnostics and actuator feedback |
| VREFBUF output options | Programmable 2.048 V / 2.5 V / 2.9 V reference → eliminates external voltage references for ADC/DAC calibration and sensor biasing |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Primary controller executing real-time FOC algorithm, generating 12-channel PWM with synchronized current sampling and dead-time management. Use Value: HRTIM's 184 ps resolution enables <100 ns dead-time accuracy, reducing shoot-through risk and improving inverter efficiency by 1.2–1.8%. | Use Scenario: Grid-tied solar microinverters requiring precise MPPT tracking and anti-islanding detection. IC Role / Device Role / Timing Role: System-on-chip managing DC-DC boost, DC-AC inversion, communication (FDCAN/USB), and safety monitoring. Use Value: Integrated CORDIC and FMAC accelerate MPPT calculations and harmonic analysis, reducing latency to <50 µs per iteration. |
| Programmable Logic Controllers | Medical Infusion Pumps |
Use Scenario: Compact PLC modules handling analog I/O expansion, motion control, and EtherCAT slave stack. IC Role / Device Role / Timing Role: Central processing unit with deterministic interrupt latency (<1 µs), dual-bank Flash for firmware rollback, and 5 V-tolerant GPIOs for legacy I/O modules. Use Value: ART Accelerator ensures consistent 170 MHz execution from Flash, eliminating cache misses during cyclic scan execution. | Use Scenario: Battery-powered infusion pumps requiring precise flow rate control, battery monitoring, and USB-C PD charging. IC Role / Device Role / Timing Role: Safety-critical controller managing stepper motor sequencing, pressure sensing (via ADC), and USB-C power negotiation (UCPD). Use Value: VREFBUF's 2.048 V output provides stable reference for 12-bit ADC pressure readings, achieving ±0.5% full-scale accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | LQFP64 package (64-pin), same core/peripherals but larger footprint and additional GPIOs/ADC channels | Better suited for designs needing >48 I/Os or extra analog inputs (e.g., multi-sensor data loggers) | Select when board space permits larger package and higher pin count is required for system scalability |
| STM32H743ZIT6 | Higher-tier Cortex-M7 (480 MHz), dual-core option, no HRTIM, different peripheral set (no FMAC/CORDIC) | Targeted at AI edge inference or high-throughput protocol stacks, not ultra-precise timing or analog acceleration | Choose only if raw CPU throughput outweighs need for hardware math accelerators and sub-ns PWM resolution |
Compared with STM32G474RET6, the VCH3TR offers identical functionality in a smaller UFQFPN48 package ideal for space-constrained motor drives; versus STM32H743ZIT6, it trades peak clock speed for deterministic analog/motor control features - making it superior for time-critical power electronics where 184 ps timing and CORDIC offload matter more than GHz-class compute.
Availability
STM32G474VCH3TR is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, programmable logic controllers, and medical infusion pumps requiring stable component supply across long production lifecycles.
Supply support for STM32G474VCH3TR 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 ICs, sensors, and analog components for industrial, automotive, and consumer markets.
The STM32G4 series targets high-efficiency digital power conversion and real-time motor control, integrating specialized hardware accelerators (CORDIC, FMAC, HRTIM) to replace external DSPs and analog ICs in cost-sensitive, performance-critical applications.
FAQ
What is the maximum operating frequency and associated DMIPS rating?
The STM32G474VCH3TR operates at up to 170 MHz with an integer performance rating of 213 DMIPS, measured using the Dhrystone 2.1 benchmark with ART Accelerator enabled and zero-wait-state Flash execution. This reflects deterministic real-time throughput, not theoretical peak FPU performance.
Does this MCU support true hardware-based cryptographic acceleration?
No - the STM32G474VCH3TR does not include dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries for encryption; however, it features a True Random Number Generator (RNG) and 96-bit unique ID for key derivation and device authentication in secure boot implementations.
How many independent 12-bit ADCs are integrated, and what is their maximum sampling rate?
It integrates five independent 12-bit ADCs, each capable of 4 MSPS sampling (0.25 µs conversion time) with hardware oversampling up to 16-bit resolution. All five share a common clock domain and can be triggered synchronously for multi-channel acquisition in motor current sensing.
Is the UFQFPN48 package RoHS-compliant and lead-free?
Yes - the STM32G474VCH3TR in UFQFPN48 packaging is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3. Full compliance documentation is available in ST's official product change notifications (PCNs) and material declarations.
STM32G474VCH3TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-TFBGA
- Series:
- STM32G4
- Packaging:
- Tape & Reel (TR)
- 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:
STM32G474VCH3TR FAQ
1.How can I place an order for STM32G474VCH3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474VCH3TR 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 STM32G474VCH3TR reliable?
The price and inventory of STM32G474VCH3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474VCH3TR is usually 5 days.
3.What payment methods are accepted for STM32G474VCH3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474VCH3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474VCH3TR?
STM32G474VCH3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474VCH3TR 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 STM32G474VCH3TR?
For technical support, including STM32G474VCH3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474VCH3TR requirements.
6.How does Aetrix verify that STM32G474VCH3TR is sourced from the original manufacturer or authorized distributors?
All STM32G474VCH3TR 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 STM32G474VCH3TR meets industry standards.
7.What is the process for return or replacement of STM32G474VCH3TR?
All STM32G474VCH3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474VCH3TR, 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 STM32G474VCH3TR part is unused and in its original packaging.
Return procedure for STM32G474VCH3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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