STM32G474QET6 - 170MHz Cortex-M4 MCU, 512KB Flash | STMicroelectronics
MPN: STM32G474QET6 ✓ Hoạt độngSTM32G474QET6 Tóm tắt
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32G474 series belongs to the STM32G4 family, which is optimized for mixed-signal control applications, combining a powerful Cortex-M4 core with advanced analog peripherals and a math accelerator. This family sits within the broader STM32 ecosystem, which includes multiple series tailored for different performance, power, and feature requirements.
Key features of the STM32G474QET6 include a 170 MHz Arm Cortex-M4F core with FPU, 512 KB Flash, 128 KB SRAM, a 184 ps high-resolution timer with 12 channels, a math accelerator for enhanced DSP performance, and rich analog peripherals including multiple 12-bit ADCs, DACs, and comparators. The device also supports various communication interfaces such as SPI, I2C, USART, CAN, and USB, making it versatile for connectivity.
The STM32G474QET6 is built on STMicroelectronics' advanced process technology, enabling high performance with efficient power consumption. The inclusion of a math accelerator (CORDIC and FMAC) offloads complex calculations from the CPU, improving overall system throughput. The high-resolution timer is particularly suited for digital power conversion, motor control, and other time-critical applications.
Typical applications include digital power supplies, motor control (e.g., field-oriented control of BLDC motors), industrial automation, and advanced sensing systems. The device's rich analog front-end and high-resolution timer make it ideal for applications requiring precise timing and analog signal processing.
When designing with this MCU, ensure proper decoupling of the power supply pins and consider the thermal dissipation of the LQFP-128 package. The device supports multiple low-power modes, which can be leveraged to optimize energy consumption in battery-powered applications.
Bộ thay thế dễ dàng lắp đặt cho STM32G474QET6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32G474QET6 (cùng hình factor và footprint) — khác nhau ở Package, Supply Voltage.
STM32G474QET6U
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32G474QBT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32G473QET6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32G474QET6 Tỷ lệ tối đa & tính chất điện
| Core | Arm Cortex-M4F with FPU |
| Tần số xung maksimum | 170 MHz |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Hộp | 128-LQFP (14x14 mm) |
| Nhiệt độ hoạt động | -40C to +125C |
| Điện áp cung cấp | 1.71 V to 3.6 V |
| DMIPS | 213 |
| High-Resolution Timer | 184 ps, 12 channels |
| Math Accelerator | CORDIC and FMAC |
| ADC | Multiple 12-bit ADCs |
| DAC | 12-bit DAC |
| Communication Interfaces | SPI, I2C, USART, CAN, USB |
| GPIO | Up to 107 I/O pins |
| RoHS | Compliant |
Cấu hình chân STM32G474QET6
| Chân 1 | VDD — Digital power supply |
| Chân 2 | VSS — Digital ground |
| Chân 3 | PA0 — GPIO/ADC input |
| Chân 4 | PA1 — GPIO/ADC input |
| Chân 5 | PA2 — GPIO/USART2_TX |
| Chân 6 | PA3 — GPIO/USART2_RX |
| Chân 7 | PA4 — GPIO/SPI1_NSS |
| Chân 8 | PA5 — GPIO/SPI1_SCK |
| Chân 9 | PA6 — GPIO/SPI1_MISO |
| Chân 10 | PA7 — GPIO/SPI1_MOSI |
| Chân 11 | VSSA — Analog ground |
| Chân 12 | VDDA — Analog power supply |
| Chân 13 | PB0 — GPIO/ADC input |
| Chân 14 | PB1 — GPIO/ADC input |
| Chân 15 | PB2 — GPIO |
| Chân 16 | PB3 — GPIO/SPI1_SCK |
| Chân 17 | PB4 — GPIO/SPI1_MISO |
| Chân 18 | PB5 — GPIO/SPI1_MOSI |
| Chân 19 | PB6 — GPIO/I2C1_SCL |
| Chân 20 | PB7 — GPIO/I2C1_SDA |
| Chân 21 | PB8 — GPIO/CAN1_RX |
| Chân 22 | PB9 — GPIO/CAN1_TX |
| Chân 23 | VDD — Digital power supply |
| Chân 24 | VSS — Digital ground |
| Chân 25 | PC0 — GPIO/ADC input |
| Chân 26 | PC1 — GPIO/ADC input |
| Chân 27 | PC2 — GPIO/ADC input |
| Chân 28 | PC3 — GPIO/ADC input |
| Chân 29 | PC4 — GPIO |
| Chân 30 | PC5 — GPIO |
| Chân 31 | PC6 — GPIO/TIM3_CH1 |
| Chân 32 | PC7 — GPIO/TIM3_CH2 |
| Chân 33 | PC8 — GPIO/TIM3_CH3 |
| Chân 34 | PC9 — GPIO/TIM3_CH4 |
| Chân 35 | PC10 — GPIO/USART4_TX |
| Chân 36 | PC11 — GPIO/USART4_RX |
| Chân 37 | PC12 — GPIO |
| Chân 38 | PC13 — GPIO/RTC |
| Chân 39 | PC14 — GPIO/OSC32_IN |
| Chân 40 | PC15 — GPIO/OSC32_OUT |
| Chân 41 | VDD — Digital power supply |
| Chân 42 | VSS — Digital ground |
| Chân 43 | PD0 — GPIO |
| Chân 44 | PD1 — GPIO |
| Chân 45 | PD2 — GPIO |
| Chân 46 | PD3 — GPIO |
| Chân 47 | PD4 — GPIO |
| Chân 48 | PD5 — GPIO |
| Chân 49 | PD6 — GPIO |
| Chân 50 | PD7 — GPIO |
| Chân 51 | PD8 — GPIO |
| Chân 52 | PD9 — GPIO |
| Chân 53 | PD10 — GPIO |
| Chân 54 | PD11 — GPIO |
| Chân 55 | PD12 — GPIO |
| Chân 56 | PD13 — GPIO |
| Chân 57 | PD14 — GPIO |
| Chân 58 | PD15 — GPIO |
| Chân 59 | VDD — Digital power supply |
| Chân 60 | VSS — Digital ground |
| Chân 61 | PE0 — GPIO |
| Chân 62 | PE1 — GPIO |
| Chân 63 | PE2 — GPIO |
| Chân 64 | PE3 — GPIO |
| Chân 65 | PE4 — GPIO |
| Chân 66 | PE5 — GPIO |
| Chân 67 | PE6 — GPIO |
| Chân 68 | PE7 — GPIO |
| Chân 69 | PE8 — GPIO |
| Chân 70 | PE9 — GPIO |
| Chân 71 | PE10 — GPIO |
| Chân 72 | PE11 — GPIO |
| Chân 73 | PE12 — GPIO |
| Chân 74 | PE13 — GPIO |
| Chân 75 | PE14 — GPIO |
| Chân 76 | PE15 — GPIO |
| Chân 77 | VDD — Digital power supply |
| Chân 78 | VSS — Digital ground |
| Chân 79 | PF0 — GPIO |
| Chân 80 | PF1 — GPIO |
| Chân 81 | PF2 — GPIO |
| Chân 82 | PF3 — GPIO |
| Chân 83 | PF4 — GPIO |
| Chân 84 | PF5 — GPIO |
| Chân 85 | PF6 — GPIO |
| Chân 86 | PF7 — GPIO |
| Chân 87 | PF8 — GPIO |
| Chân 88 | PF9 — GPIO |
| Chân 89 | PF10 — GPIO |
| Chân 90 | PF11 — GPIO |
| Chân 91 | PF12 — GPIO |
| Chân 92 | PF13 — GPIO |
| Chân 93 | PF14 — GPIO |
| Chân 94 | PF15 — GPIO |
| Chân 95 | VDD — Digital power supply |
| Chân 96 | VSS — Digital ground |
| Chân 97 | PG0 — GPIO |
| Chân 98 | PG1 — GPIO |
| Chân 99 | PG2 — GPIO |
| Chân 100 | PG3 — GPIO |
| Chân 101 | PG4 — GPIO |
| Chân 102 | PG5 — GPIO |
| Chân 103 | PG6 — GPIO |
| Chân 104 | PG7 — GPIO |
| Chân 105 | PG8 — GPIO |
| Chân 106 | PG9 — GPIO |
| Chân 107 | PG10 — GPIO |
| Chân 108 | PG11 — GPIO |
| Chân 109 | PG12 — GPIO |
| Chân 110 | PG13 — GPIO |
| Chân 111 | PG14 — GPIO |
| Chân 112 | PG15 — GPIO |
| Chân 113 | VDD — Digital power supply |
| Chân 114 | VSS — Digital ground |
| Chân 115 | PH0 — GPIO/OSC_IN |
| Chân 116 | PH1 — GPIO/OSC_OUT |
| Chân 117 | PH2 — GPIO |
| Chân 118 | PH3 — GPIO |
| Chân 119 | PH4 — GPIO |
| Chân 120 | PH5 — GPIO |
| Chân 121 | PH6 — GPIO |
| Chân 122 | PH7 — GPIO |
| Chân 123 | PH8 — GPIO |
| Chân 124 | PH9 — GPIO |
| Chân 125 | PH10 — GPIO |
| Chân 126 | PH11 — GPIO |
| Chân 127 | PH12 — GPIO |
| Chân 128 | PH13 — GPIO |
Ứng dụng tiêu biểu
STM32G474QET6 phù hợp cho 6 Áp dụngs: Digital Power Supply, Motor Control, Industrial Automation, Advanced Sensing Systems, Medical Devices, Consumer Electronics.
Digital Power Supply
The STM32G474QET6 is ideal for digital power supplies due to its high-resolution timer (184 ps) and fast ADCs. In a typical application, the MCU generates precise PWM signals to control power switches, while the ADCs sample output voltage and current for feedback. The math accelerator (CORDIC and FMAC) enables real-time implementation of control algorithms like PID or state-space controllers. Compared to analog solutions, this digital approach offers higher flexibility, better efficiency, and easier tuning. The 170 MHz Cortex-M4 core ensures sufficient processing headroom for multiple control loops, and the rich analog peripherals reduce external component count.
Được đề xuất
Motor Control
For motor control applications, the STM32G474QET6 provides a high-resolution timer with 12 channels, ideal for generating multi-phase PWM signals for BLDC or PMSM motors. The multiple 12-bit ADCs allow simultaneous sampling of phase currents and DC bus voltage, essential for field-oriented control (FOC). The math accelerator speeds up trigonometric and filter computations, reducing CPU load. The device's 170 MHz clock and 213 DMIPS ensure real-time execution of complex control algorithms. Additionally, the rich set of communication interfaces (CAN, UART, SPI) enables easy integration with motor drives and industrial networks. The LQFP-128 package provides ample GPIOs for encoder interfaces and protection circuits.
Được đề xuất
Industrial Automation
In industrial automation, the STM32G474QET6 excels due to its robust communication interfaces (CAN, USART, SPI, I2C) and wide operating temperature range (-40C to +125C). It can serve as a central controller in PLCs, handling multiple I/O points, sensor inputs, and actuator outputs. The math accelerator enhances performance for real-time data processing, while the high-resolution timer enables precise timing for synchronized operations. The device's rich analog peripherals allow direct interfacing with analog sensors without external ADCs. Its 512 KB Flash provides ample space for complex firmware, and the 128 KB SRAM supports large data buffers. The LQFP-128 package offers enough pins for extensive I/O expansion.
Được đề xuất
Advanced Sensing Systems
The STM32G474QET6 is well-suited for advanced sensing systems that require high-speed data acquisition and processing. Its multiple 12-bit ADCs can sample multiple analog sensors simultaneously, while the math accelerator performs fast Fourier transforms (FFT) or other signal processing tasks. The device's low-power modes help extend battery life in portable sensing applications. The 170 MHz Cortex-M4 core with FPU handles complex algorithms like sensor fusion. The rich communication interfaces (USB, SPI, I2C) allow easy data transfer to host systems. The LQFP-128 package provides enough pins for multiple sensor inputs and control outputs.
Được đề xuất
Medical Devices
In medical devices, the STM32G474QET6 offers high performance and reliability. Its 170 MHz core and math accelerator enable real-time processing of biosignals, such as ECG or EEG. The multiple ADCs can digitize analog sensor outputs with high resolution, while the DAC can generate analog waveforms for stimulation or feedback. The device's low-power modes are beneficial for portable medical monitors. The wide operating temperature range and robust design make it suitable for medical equipment. The LQFP-128 package provides enough pins for various interfaces, including USB for data logging and display. Compliance with RoHS ensures environmental safety.
Được đề xuất
Consumer Electronics
The STM32G474QET6 can be used in high-end consumer electronics such as smart home hubs, audio equipment, and wearable devices. Its powerful Cortex-M4 core and rich peripherals enable complex user interfaces, audio processing, and connectivity. The USB interface allows easy connection to PCs or smartphones. The device's low-power modes help extend battery life in portable devices. The math accelerator enhances performance for audio effects or sensor data processing. The LQFP-128 package is suitable for compact PCB designs. With 512 KB Flash, it can store large application code and multimedia data.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32G474QET6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32G474QET6U | STM32G474QBT6 | STM32G473QET6 | STM32G474RET6 |
|---|---|---|---|---|---|
| Package | LQFP-128 (14x14 mm) | UFBGA-128 | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) | LQFP-64 (10x10 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F |
| Max Clock Frequency | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz |
| Flash Memory | 512 KB | 512 KB | 128 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 32 KB | 128 KB | 128 KB |
| High-Resolution Timer | Yes (184 ps) | Yes (184 ps) | Yes (184 ps) | No | Yes (184 ps) |
| Math Accelerator | Yes (CORDIC and FMAC) | Yes (CORDIC and FMAC) | Yes (CORDIC and FMAC) | No | Yes (CORDIC and FMAC) |
Bảo phân biệt quan trọng
- High-resolution timer with 184 ps resolution (vsSTM32G473QET6)
- Math accelerator (CORDIC and FMAC) (vsSTM32G473QET6)
- Larger memory (512 KB Flash, 128 KB SRAM) (vsSTM32G474QBT6)
Ghi chú thiết kế
The STM32G474QET6 operates from 1.71V to 3.6V. It is recommended to use a 100nF decoupling capacitor on each VDD pin and a 1uF capacitor on VDDA. Additionally, a 4.7uF capacitor on the main power supply input helps filter low-frequency noise. Ensure proper grounding with a solid ground plane to minimize noise and improve ADC accuracy.
For the LQFP-128 package, ensure adequate thermal relief on the exposed pad (if present) to improve heat dissipation. Place the crystal oscillator close to the OSC_IN/OSC_OUT pins with short traces and load capacitors as specified in the datasheet. Keep high-speed communication traces (USB, SPI) impedance-controlled and away from noisy power traces.
A common pitfall is neglecting the VDDA pin decoupling, which can degrade ADC performance. Also, ensure that the boot pins (BOOT0) are configured correctly to avoid unexpected boot modes. When using the high-resolution timer, verify that the clock source is properly configured to achieve the 184 ps resolution. Refer to the reference manual for detailed configuration steps.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32G474QET6Q variant.
