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STMicroelectronics STM32G474MET6
- Part No.:
- STM32G474MET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
STM32G474MET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,634
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Product details
Overview
STM32G474MET6 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-SRAM with parity), and integrated analog peripherals including 5×12-bit ADCs (0.25 µs conversion), 7×12-bit DACs, 6 operational amplifiers, and HRTIM with 184 ps resolution. It targets high-precision motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G474MET6 datasheet, STM32G474MET6 pinout, STM32G474MET6 application, or STM32G474MET6 equivalent, key selection criteria include HRTIM timing precision, dual-bank Flash read-while-write capability, CORDIC/FMAC hardware acceleration, and FDCAN FD support for deterministic real-time 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) and dual-bank Flash architecture supporting seamless firmware updates. Its interconnect matrix routes up to 107 GPIOs-including 5 V-tolerant pins-to multiple peripherals without contention.
Timing subsystem integrates HRTIM (6×16-bit counters, 184 ps resolution), three advanced motor-control timers with dead-time generation and emergency stop, and FDCAN controllers compliant with ISO 11898-1:2015 for flexible data-rate operation up to 5 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, 170 MHz max frequency (213 DMIPS) |
| Flash Memory | 512 KB with ECC, two banks enabling read-while-write and secure PCROP protection |
| SRAM | 96 KB total: 32 KB CCM-SRAM (parity-checked, instruction/data bus), 64 KB general-purpose (first 32 KB parity-checked) |
| Analog Peripherals | 5×12-bit ADCs (42-channel, 0.25 µs, 16-bit oversampling), 7×12-bit DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS) |
| High-Resolution Timer | HRTIM: 6×16-bit counters, 184 ps resolution, 12 PWM outputs, fault protection with emergency stop |
| Communication | 3×FDCAN FD controllers, 4×I²C (Fast Mode Plus, 1 Mbit/s), 5×USART/UART, 1×LPUART, 4×SPI, USB 2.0 FS + UCPD |
| Math Accelerators | CORDIC (trigonometric functions), FMAC (filtering operations), both accessible via DMA for offloading CPU |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64-pin quad flat lead frame; 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 single-supply operation; separate analog domain enables noise-sensitive ADC/DAC accuracy |
| VSS, VSSA | Digital & analog ground | Independent grounding paths reduce coupling between digital switching and analog signal integrity |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 107 mappable GPIOs; multiple pins support 5 V tolerance for mixed-voltage interface robustness |
| PH0/PH1 | HSE oscillator input/output | Supports 4–48 MHz external crystal for precise clock source in timing-critical applications |
| PC13–PC15 | RTC backup domain | Connect to VBAT to retain RTC calendar, alarms, and 32 backup registers during main power loss |
| PA11/PA12 | USB D+/D− | Integrated USB 2.0 full-speed transceiver with LPM and BCD support-no external PHY required |
| PD0/PD1 | FDCAN1 TX/RX | Dedicated differential CAN FD interface with bit rates up to 5 Mbps and flexible data payload |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric computation (sin/cos/tan/atan) reduces CPU load by >90% vs software implementation |
| FMAC unit | Configurable 32-bit filter engine supporting FIR/IIR filtering with DMA-triggered coefficient updates |
| HRTIM resolution | 184 ps timing granularity enables sub-nanosecond PWM edge placement for SiC/GaN gate drive synchronization |
| ADC oversampling | Hardware-enabled 16-bit effective resolution at 100 kSPS via 256× oversampling and decimation |
| UCPD controller | Integrated USB Type-C™ Power Delivery negotiation engine with CC line monitoring and VCONN switching |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase PMSM/BLDC motors in HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Primary controller executing FOC loop at 20 kHz, coordinating HRTIM PWM outputs, ADC sampling, and op-amp current sensing. Use Value: 184 ps HRTIM resolution enables precise dead-time compensation and phase advance, improving efficiency by ≥1.2% over standard 16-bit timers. | Use Scenario: Isolated AC/DC and DC/DC converters using GaN FETs with adaptive voltage-mode control. IC Role / Device Role / Timing Role: Real-time digital controller managing dual-phase interleaved PWM, fast-loop ADC feedback, and CORDIC-based PI tuning. Use Value: CORDIC computes sine/cosine for space-vector modulation in <1 µs, reducing jitter-induced EMI by tightening switching timing consistency. |
| Smart Grid Sensing Node | Medical Infusion Pump |
Use Scenario: DIN-rail-mounted power quality analyzer measuring harmonics, THD, and RMS across 3 phases. IC Role / Device Role / Timing Role: Simultaneous multi-channel synchronized sampling (5×ADCs @ 1 MSps aggregate), FFT processing via FMAC, and FDCAN reporting. Use Value: Dual-bank Flash allows background firmware update while maintaining continuous measurement logging-zero downtime during field upgrades. | Use Scenario: Battery-powered infusion pump requiring precise flow rate control, safety monitoring, and USB-C charging. IC Role / Device Role / Timing Role: Safety-critical controller managing stepper motor sequencing, pressure sensor ADC, RTC alarm, and UCPD power negotiation. Use Value: Integrated VREFBUF (2.048 V/2.5 V/2.9 V) provides stable reference for medical-grade ADC accuracy without external components. |
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 |
|---|---|---|---|
| STM32G431KBT6 | Same G4 core but 128 KB Flash, no HRTIM, only 1×12-bit DAC, 3×ADC (16-channel) | Suitable for cost-sensitive motor control without ultra-high-resolution PWM or multi-channel sensing | Select when HRTIM, dual-bank Flash, or >3 ADCs are not required-reduces BOM cost by ~22% |
| STM32H743VIT6 | Cortex-M7 core @ 480 MHz, 2 MB Flash, 1 MB RAM, no CORDIC/FMAC, higher power consumption | Better for AI inference or complex GUI, less optimal for analog-rich, low-latency control loops | Choose only if >200 DMIPS and large memory footprint outweigh added thermal and layout complexity |
Compared with STM32G431KBT6, the STM32G474MET6 delivers 4× more Flash, HRTIM for nanosecond-precision PWM, and triple ADC bandwidth-critical for closed-loop digital power. Versus STM32H743VIT6, it offers superior analog integration, lower active power (120 µA/MHz), and deterministic latency for real-time control.
Availability
STM32G474MET6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart grid instrumentation, and medical therapeutic devices requiring stable component supply across extended product lifecycles.
Supply support for STM32G474MET6 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 automotive-grade components since 1987.
The STM32G4 series targets high-efficiency digital power conversion and precision motor control, integrating math accelerators and ultra-precise timers to replace discrete analog control circuits with deterministic software-defined behavior.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32G474MET6 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS), measured per EEMBC benchmark v1.1. This includes full utilization of the ART Accelerator for zero-wait-state Flash execution and the FPU for floating-point-intensive tasks like motor control algorithms.
Does this MCU support hardware-accelerated cryptographic operations?
No, the STM32G474MET6 does not integrate dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries for encryption; however, its TRNG (True Random Number Generator) and 96-bit unique ID support secure key derivation and device authentication in conjunction with external secure elements.
How many independent ADC instances are available, and what is their maximum aggregate sampling rate?
The device integrates five independent 12-bit ADCs, each capable of up to 2.4 MSPS (with 0.25 µs conversion time). When operated in interleaved mode with shared DMA, the aggregate sampling rate reaches 12 MSPS across up to 42 channels-enabling simultaneous acquisition of motor phase currents, DC-link voltage, and temperature sensors.
Is the LQFP64 package of STM32G474MET6 pin-compatible with other STM32G4 variants?
Yes, the LQFP64 package shares identical pinout and electrical characteristics across STM32G474xB/C/E sub-families (e.g., STM32G474RBT6, STM32G474RCT6). Pin compatibility enables direct substitution within the same package option, provided Flash/RAM configuration and peripheral enablement align with firmware requirements.
STM32G474MET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 80-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:
- 66
- 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 41x12b; D/A 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G474MET6 FAQ
1.How can I place an order for STM32G474MET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G474MET6 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 STM32G474MET6 reliable?
The price and inventory of STM32G474MET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G474MET6 is usually 5 days.
3.What payment methods are accepted for STM32G474MET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G474MET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G474MET6?
STM32G474MET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G474MET6 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 STM32G474MET6?
For technical support, including STM32G474MET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G474MET6 requirements.
6.How does Aetrix verify that STM32G474MET6 is sourced from the original manufacturer or authorized distributors?
All STM32G474MET6 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 STM32G474MET6 meets industry standards.
7.What is the process for return or replacement of STM32G474MET6?
All STM32G474MET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G474MET6, 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 STM32G474MET6 part is unused and in its original packaging.
Return procedure for STM32G474MET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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