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STMicroelectronics STM32G474RBT6TR
- Part No.:
- STM32G474RBT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32G474RBT6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,419
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Product details
Overview
STM32G474RBT6TR 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 with parity), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DACs, six operational amplifiers, and a high-resolution timer (HRTIM) with 184 ps resolution - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G474RBT6TR datasheet, STM32G474RBT6TR pinout, STM32G474RBT6TR application, or STM32G474RBT6TR equivalent, key selection criteria include HRTIM timing precision for PWM generation, dual-bank Flash with read-while-write for firmware updates, CORDIC/FMAC hardware accelerators for real-time math, and FDCAN support for automotive-grade communication.
Technical Context
The device 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. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.
It integrates three FDCAN controllers compliant with ISO 11898-1:2015 for flexible data-rate communication, alongside USB 2.0 full-speed with LPM/BCD and UCPD for USB Type-C™ power delivery negotiation - all synchronized via a multi-source clock system with 4–48 MHz crystal oscillator, 32 kHz RTC calibration, and ±1% internal 16 MHz RC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, enabling single-cycle MAC and saturating arithmetic for motor control algorithms. |
| Max Clock Frequency | 170 MHz with 213 DMIPS - sustains real-time loop execution in servo drives and digital power supplies. |
| Flash Memory | 512 KB with ECC, two banks, read-while-write, and PCROP - supports safe over-the-air firmware updates and secure code protection. |
| SRAM | 96 KB total: 32 KB CCM SRAM (parity-checked, instruction/data bus), 64 KB general-purpose SRAM - optimizes deterministic interrupt latency and data buffering. |
| HRTIM Resolution | 184 ps timing resolution across six 16-bit counters - enables sub-nanosecond PWM edge placement for GaN/SiC gate driving. |
| Analog Peripherals | 5 × 12-bit ADCs (42 channels, 0.25 µs), 7 × 12-bit DACs (3 buffered external @ 1 MSPS), 6 op-amps (PGA mode), 7 comparators - supports closed-loop analog signal conditioning without external ICs. |
| Communication | 3 × FDCAN, 5 × USART/UART, 4 × I²C (Fast Mode Plus), 4 × SPI, USB FS, SAI, UCPD - meets mixed-signal system interface requirements from industrial PLCs to USB-C PD adapters. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V operation; separate analog rail ensures ADC/DAC accuracy and noise immunity. |
| VSS, VSSA | Digital & analog ground | Independent grounding paths minimize coupling between digital switching noise and precision analog circuits. |
| 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 layout flexibility. |
| PH0/PH1 | High-speed crystal oscillator input/output | Supports 4–48 MHz external crystal for precise system clocking and USB/FDCAN timing compliance. |
| PC13–PC15 | RTC backup domain | Connects 32.768 kHz crystal or oscillator for calendar RTC, alarm, and periodic wakeup from Stop/Standby modes. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver with built-in termination and LPM support - no external PHY required. |
| PD0/PD1 | FDCAN1 TX/RX | Direct connection to CAN transceiver; supports bit rates up to 5 Mbps with flexible data-rate framing. |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric computation (sin/cos/tan/atan) in <100 ns - eliminates software math overhead in field-oriented control (FOC) loops. |
| FMAC unit | Programmable filter engine supporting FIR/IIR filtering at sample rates >1 MSPS - offloads DSP tasks from CPU in sensor fusion or audio preprocessing. |
| HRTIM advanced waveform builder | 6 independent 16-bit timers with dead-time insertion, fault protection, and synchronous PWM outputs - enables multi-phase inverter control with <1 ns jitter. |
| VREFBUF | Internal voltage reference buffer with selectable 2.048 V / 2.5 V / 2.9 V outputs - provides stable ADC/DAC reference without external components. |
| UCPD controller | Integrated USB Type-C™ Power Delivery protocol engine with CC logic and VCONN switch - enables compact, certified USB-C PD sink/source designs. |
Applications
| Motor Control System | 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: Real-time execution of FOC algorithm, PWM generation via HRTIM, current/voltage sensing via ADCs, and fault handling via comparators. Use Value: 184 ps HRTIM resolution enables precise dead-time compensation for SiC/GaN inverters, reducing switching losses by up to 12% versus standard timers. | Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and digital loop compensation. IC Role / Device Role / Timing Role: Dual-loop control core with CORDIC-based PI tuning, isolated feedback sampling via ADC, and synchronous rectification timing via HRTIM. Use Value: FMAC performs real-time digital filter computation for compensator transfer functions, eliminating need for external DSP or FPGA in <3 kW SMPS designs. |
| Industrial PLC I/O Module | USB-C PD Adapter |
Use Scenario: Compact programmable logic controller with analog input/output, digital I/O, and fieldbus connectivity. IC Role / Device Role / Timing Role: Central processing unit managing cyclic I/O scanning, motion control sequencing, and FDCAN fieldbus communication. Use Value: 107 GPIOs with 5 V tolerance simplify interfacing to legacy 24 V industrial sensors and actuators without level shifters. | Use Scenario: Single-chip USB-C power adapter supporting 65 W PPS (Programmable Power Supply) profiles. IC Role / Device Role / Timing Role: UCPD protocol controller, voltage/current monitoring via ADC, and power path management via GPIO-driven MOSFET gates. Use Value: Integrated UCPD engine with hardware CRC and message retry logic reduces BOM count by 3 ICs versus discrete MCU + PD controller solutions. |
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 | Same core/peripherals but in LQFP64-64 package with 512 KB Flash and 128 KB SRAM (vs. 96 KB) | Higher SRAM supports larger RTOS footprint or complex GUI buffers in HMI applications | Select when additional RAM is required for FreeRTOS+TCP or embedded web server stacks |
| STM32H743VIT6 | Arm Cortex-M7 @ 480 MHz, dual-core option, 1 MB Flash, 1 MB SRAM, but no HRTIM or CORDIC | Better raw compute for vision/AI inference; lacks sub-ns PWM timing for power electronics | Choose for high-throughput data processing where analog timing precision is secondary |
Compared with STM32G474RBT6TR, the STM32G474RET6 offers more SRAM for complex firmware, while the STM32H743VIT6 delivers higher CPU throughput but sacrifices the 184 ps HRTIM and hardware math accelerators critical for digital power and motor control.
Availability
STM32G474RBT6TR is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial PLC modules, and USB-C PD adapters requiring stable component supply across production lifecycles.
Supply support for STM32G474RBT6TR 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32G4 series targets high-efficiency digital power conversion and real-time motor control, integrating specialized analog peripherals and hardware accelerators to replace discrete signal-chain components in cost-sensitive, space-constrained applications.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32G474RBT6TR achieves 170 MHz using its Arm Cortex-M4 core with FPU and Adaptive Real-Time Accelerator (ART), which enables zero-wait-state execution from Flash memory. This frequency is sustained under full load with 213 DMIPS performance, validated across the industrial temperature range (–40°C to +85°C) and 1.71–3.6 V supply.
Does this MCU support USB Type-C™ Power Delivery?
Yes - it integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. The UCPD block handles CC line detection, BMC decoding/encoding, VCONN switching, and policy engine execution without external components, supporting both sink and source roles in compact adapters.
How does the HRTIM differ from standard timers in motor control?
The HRTIM provides six 16-bit counters with 184 ps resolution, independent dead-time generators, fault inputs with automatic shutdown, and synchronous PWM output alignment - features not found in general-purpose timers. This enables precise multi-phase inverter control with sub-nanosecond jitter, essential for SiC/GaN-based motor drives.
What analog features eliminate need for external signal-conditioning ICs?
This MCU integrates five 12-bit ADCs (42-channel, 0.25 µs), seven 12-bit DACs (three buffered external), six rail-to-rail op-amps (configurable as PGAs), seven comparators, and a programmable VREFBUF (2.048/2.5/2.9 V). Together, they enable complete analog front-end functionality - including current sensing, voltage regulation feedback, and sensor excitation - without external amplifiers or references.
STM32G474RBT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- 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
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 128KB (128K 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 26x12b SAR; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G474RBT6TR FAQ
1.How can I place an order for STM32G474RBT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474RBT6TR 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 STM32G474RBT6TR reliable?
The price and inventory of STM32G474RBT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474RBT6TR is usually 5 days.
3.What payment methods are accepted for STM32G474RBT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474RBT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474RBT6TR?
STM32G474RBT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474RBT6TR 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 STM32G474RBT6TR?
For technical support, including STM32G474RBT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474RBT6TR requirements.
6.How does Aetrix verify that STM32G474RBT6TR is sourced from the original manufacturer or authorized distributors?
All STM32G474RBT6TR 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 STM32G474RBT6TR meets industry standards.
7.What is the process for return or replacement of STM32G474RBT6TR?
All STM32G474RBT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474RBT6TR, 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 STM32G474RBT6TR part is unused and in its original packaging.
Return procedure for STM32G474RBT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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