STM32G473QCT6 - 170MHz Cortex-M4 MCU 256KB Flash LQFP-128 | ST
N.º da peça: STM32G473QCT6 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $11.2 | $11,20 |
| 10 | $10.08 | $100,80 |
| 100 | $8.96 | $896,00 |
| 500 | $7.84 | $3.920,00 |
| 1.000 | $6.72 | $6.720,00 |
STM32G473QCT6 Visão geral
What is a Cortex-M4 MCU? An Arm Cortex-M4 microcontroller is a 32-bit RISC processor core designed for embedded systems, featuring single-precision floating-point hardware, a DSP instruction set, and deterministic interrupt handling. Within the hierarchy, a Cortex-M4 sits under Cortex-M MCUs -> ARM MCUs -> microcontrollers -> embedded processors -> integrated circuits. The Cortex-M4 is widely used in motor control, power conversion, audio processing, and industrial automation where deterministic real-time response plus signal-processing throughput are required.
Key features include: 170 MHz / 213 DMIPS core performance, 256 KB Flash, 128 KB SRAM, 5x 12-bit 4 MSPS ADCs (up to 36 channels), 4x 12-bit DACs, 7x ultra-fast comparators (16 ns), 4x operational amplifiers, math accelerator (Cordic + FMAC), up to 4x FDCAN, USB-C Power Delivery, and 128 KB of SRAM with hardware parity check. The 128-LQFP package exposes 107 GPIO and supports up to 17 timers including 5x 16-bit and 2x 32-bit timers plus 2x 16-bit low-power timers.
Architecturally, the STM32G473 uses a Harvard bus with separate I-Code/D-Code buses and an AHB/APB bus matrix. The integrated op-amps, comparators, and 4 MSPS ADCs enable single-chip signal-chain designs that previously required external analog ICs. The CORDIC accelerator computes trigonometric functions in hardware without CPU cycles, and the FMAC unit performs FIR/IIR filtering for digital power control loops.
Typical applications include field-oriented motor control (FOC) for industrial drives and e-bikes, digital switched-mode power supplies (SMPS) with peak current mode control, LED lighting drivers, photovoltaic micro-inverters, wireless charging transmitters, and USB-C PD sink/source controllers. The 128-LQFP form factor is common in industrial control boards where maximum GPIO count is needed.
When designing with this part, ensure that the 5 ADCs are not all sampling simultaneously above 4 MSPS to avoid supply noise; stagger conversions by phase. For SMPS applications, dedicate one op-amp to current sensing and one high-speed comparator to the PWM protection path to achieve sub-200 ns cycle-by-cycle current limiting.
This page synthesizes distributor pricing, drop-in alternatives within the STM32G4 family, and practical design notes that complement the manufacturer datasheet.
Alternativas drop-in para STM32G473QCT6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32G473QCT6 (mesmo formato e footprint) — diferindo em ADC, Comparators, Operational Amplifiers, Package, DAC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32G473QCT7
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32G473RET6
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.44 / unidade
Ver ficha técnica →STM32G474QCT6
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32G431QCT6
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
GD32E503RET6
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
APM32E103RET6
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32G473QCT6 Classificações máximas e características elétricas
| Core Architecture | Arm Cortex-M4 with FPU and DSP instructions |
| Frequência máxima de clock | 170 MHz |
| DMIPS Performance | 213 DMIPS |
| Program Memory (Flash) | 256 KB |
| SRAM | 128 KB |
| Encapsulamento | LQFP-128 (14x14 mm) |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Faixa de temperatura de operação | -40C to +85C |
| ADC | 5x 12-bit, up to 4 MSPS, up to 36 channels |
| DAC | 4x 12-bit |
| Comparators | 7x ultra-fast (16 ns propagation delay) |
| Operational Amplifiers | 4x integrated |
| Math Accelerator | CORDIC + FMAC (filter math accelerator) |
| FDCAN Interfaces | Up to 4x FDCAN 2.0 |
| USB-C Power Delivery | Yes (UCPD with PHY) |
| GPIO Count | 107 GPIO |
| Timers | 5x 16-bit, 2x 32-bit, 2x 16-bit low-power |
| RoHS Compliance | Compliant |
Guia de Configuração de Pinos do STM32G473QCT6 lqfp-128 (14x14 mm)
Configuração de pinos para STM32G473QCT6 (pacote lqfp-128 (14x14 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM32G473QCT6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32G473QCT6 é adequado para 6 aplicaçãos: Field-Oriented Motor Control (FOC), Digital Switched-Mode Power Supply (SMPS), Solar Microinverter and PV Optimizer, USB-C Power Delivery Source/Sink, LED Lighting and Color Mixing, Industrial Servo and Robotics.
Field-Oriented Motor Control (FOC)
The STM32G473QCT6 is purpose-built for field-oriented control of PMSM, BLDC, and induction motors at power levels up to several kW. Its 170 MHz Cortex-M4F core with single-cycle MAC and FPU runs the full FOC algorithm - Clarke/Park transforms, SVPWM, and current/torque loop - in single-digit microseconds. The integrated CORDIC accelerator computes sin/cos/atan2 in hardware without CPU load, while the 5x 4 MSPS ADCs sample phase currents with sub-microsecond latency. The 4 integrated op-amps condition current-sensing shunt signals, and 7x 16 ns comparators handle cycle-by-cycle overcurrent protection. Compared to discrete MCU+FPGA solutions, the G473 integrates the entire digital control loop on one chip.
Recomendado
Digital Switched-Mode Power Supply (SMPS)
The STM32G473QCT6 delivers deterministic digital control for totem-pole PFC, LLC, phase-shifted full-bridge, and peak current-mode converters. The FMAC (Filter Math Accelerator) executes FIR/IIR control loops without CPU intervention, while the 4 MSPS ADCs oversample the feedback path to enable sub-1% output voltage regulation. Four integrated op-amps implement Type-II/III compensator networks directly on-chip, eliminating the typical external analog compensation stage. The high-resolution timer (184 ps resolution) supports DPWM generation with 1 ns edge placement, critical for high-frequency GaN-based converters operating at 1 MHz+ switching frequencies.
Recomendado
Solar Microinverter and PV Optimizer
The STM32G473QCT6 serves as the control brain for module-level solar microinverters and DC optimizers, where its integrated MPPT algorithm runs at kHz loop rates on the Cortex-M4F. The 4 FDCAN interfaces enable module-to-string communication for centralized inverter coordination. Hardware FPU handles floating-point PV model computations with sub-100 ms response to irradiance transients, while the integrated high-speed comparators implement fast arc-fault detection per UL 1699B. Compared to a discrete MCU + DSP solution, the G473 reduces component count by approximately 30% while supporting the latest NEC 2017 rapid-shutdown requirements through its UCPD + timer combination.
Recomendado
USB-C Power Delivery Source/Sink
The STM32G473QCT6 integrates a USB-C Power Delivery (UCPD) hardware peripheral with built-in physical layer (PHY), supporting Source, Sink, and DRP roles up to 100 W. Combined with the 4 op-amps for VBUS current sensing and the high-speed 12-bit ADCs for cable-compensation feedback, the G473 implements a complete PD 3.1 EPR solution on one chip. The 4 FDCAN channels enable multi-port PD hub architectures, while the 170 MHz core executes the entire PD protocol stack including PPS and AVS modes. Compared to discrete UCPD controller + MCU solutions, the G473 saves $2-3 per BOM while reducing PCB area by 40%.
Recomendado
LED Lighting and Color Mixing
The STM32G473QCT6 drives high-end architectural and horticultural LED lighting systems with 4-channel 12-bit DACs providing smooth analog dimming to 0.1% accuracy. The CORDIC accelerator computes color-mixing matrices in real time for tunable-white and RGBW fixtures, while the 5 high-speed ADCs enable closed-loop thermal and optical feedback for constant-lumen output. The 4 FDCAN interfaces support DALI-2 and DMX-RDM over CAN gateways, simplifying integration with building automation systems. Compared to discrete analog LED drivers, the G473-based digital approach improves dimming linearity by an order of magnitude.
Recomendado
Industrial Servo and Robotics
The STM32G473QCT6 controls multi-axis servo drives and collaborative robot (cobot) joint modules, where its 170 MHz Cortex-M4F and math accelerators compute real-time inverse kinematics and joint trajectory planning. The 4 FDCAN interfaces enable EtherCAT sub-module communications via ET1100 co-processor, while the high-resolution timers generate 16-bit PWM outputs at 100 kHz with sub-1 us dead-time insertion for safe IGBT bridge control. Integrated comparators provide hardware overcurrent/overvoltage protection within 200 ns - well below the IEC 61800-5-1 functional safety requirements for low-voltage industrial drives.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32G473QCT6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STM32G473QCT7 | STM32G473RET6 | STM32G474QCT6 | GD32E503RET6 | APM32E103RET6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice | Geehy |
| Package | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) | LQFP-128 (14x14 mm) |
| Core Architecture | Cortex-M4F 170 MHz | Cortex-M4F 170 MHz | Cortex-M4F 170 MHz | Cortex-M4F 170 MHz | Cortex-M33 180 MHz | Cortex-M4F 120 MHz |
| Flash Memory | 256 KB | 256 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| ADC Count | 5x 12-bit 4 MSPS | 5x 12-bit 4 MSPS | 5x 12-bit 4 MSPS | 5x 12-bit 4 MSPS | 3x 12-bit 2 MSPS | 3x 12-bit 1 MSPS |
| Operational Amplifiers | 4x integrated | 4x integrated | 4x integrated | 4x integrated | 0 (external required) | 0 (external required) |
| Math Accelerator | CORDIC + FMAC | CORDIC + FMAC | CORDIC + FMAC | CORDIC + FMAC + crypto/hash | None (HW divider/MAC only) | None |
| FDCAN Interfaces | 4x FDCAN 2.0 | 4x FDCAN 2.0 | 4x FDCAN 2.0 | 4x FDCAN 2.0 | 2x CAN 2.0B | 2x CAN 2.0B |
Principais diferenciais
- Industry-leading integrated analog with math accelerator (vs GD32E503RET6)
- Higher core clock speed for faster control loops (vs APM32E103RET6)
- 256 KB single-bank Flash upgrade path (vs STM32G474QCT6)
Notas de projeto
The 128-LQFP package has a typical theta_JA of approximately 40-45 C/W on a 4-layer PCB with standard copper pours. At the absolute worst case (170 MHz, all peripherals active, 3.6 V VDD), internal dissipation stays under 250 mW, so thermal shutdown (typically at 130C junction) will not trigger in normal operation. However, for outdoor industrial designs reaching 70C ambient, ensure the LQFP has a minimum 100 sq mm copper pad connection on the top layer and thermal vias to the inner ground plane to maintain junction temperature below 100C.
Decoupling the STM32G473QCT6 requires one 100 nF X7R 0402 ceramic cap on each VDD/VDDA/VDD_USB/VBAT pin plus a 4.7 uF bulk cap per power domain, placed within 3 mm of each pin. For the high-speed ADC inputs, route analog signals on a separate analog ground island tied to the single-point GND near the VDDA decoupling cap. Avoid routing switching signals (HRTIM, FDCAN) directly over the analog ground island to preserve ADC SNR; the 12-bit 4 MSPS performance degrades by approximately 6 dB if digital coupling is not contained.
The 5 ADC instances share a single SAR core, so simultaneous sampling of all 5 channels at 4 MSPS is NOT supported - the effective aggregate sample rate is 4 MSPS across all channels. Use the interleaved mode (+/- 2 ps aperture) to sample two signals simultaneously. A common pitfall is configuring all 5 ADCs at 80 MHz ADC clock with channels spread across them - this serializes the conversions and defeats the parallel-sensing benefit. Configure dual ADC DMA mode for the highest-throughput sampling pattern.
The FDCAN transceivers require a 120 ohm termination resistor at each end of the bus. The STM32G473QCT6 does NOT include on-chip termination, so external split termination (60 ohm + 60 ohm with 4.7 nF to GND) is required for reliable high-speed CAN-FD operation at 2+ Mbps. For FDCAN over long cable runs (>5 m), add a common-mode choke (e.g., ACT45B series) at the connector. The UCPD peripheral similarly requires external Rp/Rd pull-up/pull-down resistors and CC1/CC2 protection TVS diodes (e.g., USBLC6-2SC6) for production USB-C PD designs.
Informações de conformidade
Industrial-grade consumer MCU; AEC-Q100 qualified automotive variants available as STM32G473QCT6TR with -40C to +125C operating range. RoHS and REACH compliant per ST product page.
