STM32G474CET6 - 170MHz Cortex-M4F MCU, 512KB Flash | STMicroelectronics
Teilenummer: STM32G474CET6 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $11.74 | $11,74 |
| 10 | $10.56 | $105,60 |
| 100 | $9.21 | $921,00 |
| 500 | $7.85 | $3.925,00 |
| 1.000 | $6.95 | $6.950,00 |
| 2.500 | $5.94 | $14.850,00 |
STM32G474CET6 Übersicht
An MCU (Microcontroller Unit) is a single-chip computer integrating a CPU core, program memory (Flash), working memory (SRAM), and peripherals (ADC, timers, communication interfaces). Within ST's portfolio, the STM32G4 sits between the STM32F-series general-purpose MCUs and the STM32H7 high-performance family, with a specific focus on mixed-signal control (analog-rich), digital power conversion, and motor/fan drives. The Cortex-M4F core adds DSP instructions and single-precision FPU for sensor-fusion algorithms and digital control loops. As a member of the broader ARM Cortex-M4 ecosystem, the STM32G474CET6 benefits from extensive middleware, HAL drivers, and STM32CubeMX configuration tooling.
Key differentiating features include the FMAC (Filter Math Accelerator) co-processor for digital filtering, MATH acceleration via CORDIC for sin/cos/atan, four operational amplifiers usable as front-end signal conditioning for the ADCs, and connectivity via USB Type-C / USB Power Delivery 3.0, CAN FD, three SPIs, three I2C, six USARTs, and one UART. The integrated 184 ps high-resolution timer supports 16-bit resolution at 245 MHz equivalent, enabling digital SMPS and high-frequency PWM generation typically needing an external timer IC.
Architecturally, the STM32G474CET6 uses an LQFP-48 layout to expose three SPIs, three I2C, six USARTs, USB 2.0 FS with PD, two CAN FDs, two SAR ADC groups with up to 19 channels total, and three fast comparators with programmable hysteresis. The bus matrix supports up to 8 DMA channels; the chip runs from 1.71 V to 3.6 V main supply and embeds an internal 16 MHz RC and 32 kHz RTC oscillator.
Typical applications include industrial variable-frequency drives, server/AI PSUs and telecom rectifiers, solar micro-inverters and battery management, Class-D audio amplifiers, e-bike and drone motor controllers, digital welding equipment, and LED lighting drivers. The CORDIC accelerator and fast ADCs make it a single-chip fit for field-oriented motor control in cordless tools and appliances.
Design considerations: Use STM32CubeIDE or STM32CubeMX to generate pin-multiplexing and peripheral configurations; respect the 3.3 V supply and add 100 nF decoupling caps near each VDD pin; leverage the CORDIC unit to off-load trigonometric calculations in motor-control loops. Connect BOOT0 to GND for normal boot from Flash.
This page synthesises distributor pricing, same-package pin-compatible alternatives (including STM32G473 and lower-memory STM32G431 variants), and practical design notes not always covered in the manufacturer datasheet.
Drop-in-Alternativen für STM32G474CET6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit STM32G474CET6 (gleiche Bauform und Footprint) – abweichend in Package, ADC, Comparators, Operational Amplifiers, SRAM.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
STM32G473CET6
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM32G474CBT3
✅ Drop-In✓ Auf Lager
$6.1 / Stück
Datenblatt ansehen →STM32G431CBT3
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM32G474CET6 Grenzwerte & elektrische Eigenschaften
| Core | Arm Cortex-M4F with FPU |
| Maximale Taktfrequenz | 170 MHz / 213 DMIPS |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Gehäuse | 48-LQFP (7x7 mm) |
| ADC | 5x 12-bit, 4 MSPS |
| DAC | 4x 12-bit |
| Comparators | 7x ultra-fast (25 ns) |
| High-Resolution Timer | 12 channels, 184 ps resolution |
| Math Accelerator | CORDIC + FMAC |
| Operational Amplifiers | 6x on-chip |
| CAN FD | 2x |
| USB | USB 2.0 FS with Type-C/PD 3.0 support |
| SPIs | 3x |
| I2C | 3x (Fast-mode Plus) |
| USARTs/UARTs | 6x USART + 1x UART |
| Betriebstemperaturbereich | -40C to +85C |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
STM32G474CET6 48-lqfp (7x7 mm) Pinbelegungsleitfaden
Pinbelegung für STM32G474CET6 (48-lqfp (7x7 mm)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für STM32G474CET6.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
STM32G474CET6 ist geeignet für 7 Anwendungs: Industrial Variable-Frequency Drive (VFD) and Servo Control, Digital Power Supply / Server PSU / Telecom Rectifier, Class-D Audio Amplifier DSP Control, Solar Micro-Inverter and String Inverter, Cordless Power Tool and Drone BLDC Motor Control, LED Lighting Driver with Dimming and Colour-Mixing, Industrial Battery Management System (BMS) for Power Tools and e-Bikes.
Industrial Variable-Frequency Drive (VFD) and Servo Control
The STM32G474CET6 fits industrial VFD and servo-control designs because its 184 ps high-resolution timer and CORDIC math engine execute field-oriented control (FOC) loops faster than software implementations, freeing CPU time for safety and communication stacks. Five 12-bit 4 MSPS ADCs digitise three phase currents plus DC-bus voltage on the same sample instant, enabling current loop bandwidths above 8 kHz. The two CAN FD interfaces expose the drive to multi-axis motion networks, while the integrated op-amps condition shunt current sensing at low BOM cost. Pin-compatible alternatives such as STM32G473CET6 scale this design into lower-cost sub-1 kW VFDs without PCB rework.
Empfohlen
Digital Power Supply / Server PSU / Telecom Rectifier
The STM32G474CET6 powers high-efficiency digital SMPS topologies (LLC, totem-pole PFC, buck/boost) by combining its CORDIC + FMAC math accelerators with 184 ps high-resolution PWM outputs. Designers can run 500 kHz digital-control loops for totem-pole PFC at 80 kHz loop bandwidth in a single-chip implementation, eliminating dedicated DSPs. The USB Type-C / Power Delivery 3.0 controller communicates directly with sink devices, and CAN FD supports PMBus-grade telemetry. Compared to legacy analog-controller + MCU split designs, a single STM32G474CET6 reduces BOM and PCB area by roughly 30 percent. ST reference designs include totem-pole 2 kW PFC firmware.
Empfohlen
Class-D Audio Amplifier DSP Control
The STM32G474CET6 is designed into Class-D audio amplifiers where the 12-channel high-resolution timer (HRTIM) drives the half-bridge FETs at 384 kHz switching frequency with sub-1 ns channel matching. The four 12-bit DACs generate carrier signals, and the integrated op-amps sense inductor current for cycle-by-cycle protection. CORDIC math enables ±360 degree phase shifting for multi-channel bass-management networks. Compared with discrete DSP + timer-controller implementations, the STM32G474CET6 cuts the BOM and simplifies I2S/TDM audio data plumbing through the integrated SAI peripheral. Reference design EVLSTGAP1 provides working Class-D firmware and PCB layout files.
Empfohlen
Solar Micro-Inverter and String Inverter
The STM32G474CET6 fits solar micro-inverters and small string inverters up to roughly 1.5 kW, replacing dual-chip DSP+MCU architectures with a single device. The CORDIC engine performs MPPT and grid-current phase locking, the FMAC filters out grid distortion, and the high-resolution timer generates the anti-islanding safety PWM. The two CAN FD ports communicate with a system battery combiner / smart meter, while six on-chip op-amps handle input-voltage sensing and current transducers. Pin-compatibility with the STM32G431CBT3 enables a low-cost variant for commercial-grade solar sub-systems at reduced Flash footprint.
Empfohlen
Cordless Power Tool and Drone BLDC Motor Control
The STM32G474CET6 is purpose-engineered for battery-powered BLDC and PMSM control in cordless drills, e-bike controllers, and consumer drone ESCs. The Cortex-M4F runs FOC at 24 kHz electrical loop, with hardware CORDIC computing sin/cos of rotor angle and FMAC accelerating de-noising filters on phase-current signals. The USB Type-C / Power Delivery 3.0 controller negotiates battery fast-charge protocols directly, while CAN FD exposes telemetry to pack-level diagnostics. Compared with discrete FOC controllers, the STM32G474CET6 reduces component count by roughly 50% and enables firmware reuse across 12 V to 72 V battery platforms.
Empfohlen
LED Lighting Driver with Dimming and Colour-Mixing
The STM32G474CET6 drives commercial-grade LED lighting fixtures requiring 0-10 V dimming, DALI-2, and DMX512 colour-mixing protocols. The 12-bit 4 MSPS ADC reads mix-colour sensor feedback, the 184 ps HRTIM generates phase-shifted PWM for multi-string drivers, and the USB-PD peripheral accepts USB-C input on architectural lighting fixtures. The maths accelerator handles CCT/target-lux PI loops at sub-microsecond latency, eliminating the need for an external DSP. Pin-compatible STM32G473CET6 enables a cost-down variant for high-volume indoor residential lighting SKUs.
Empfohlen
Industrial Battery Management System (BMS) for Power Tools and e-Bikes
The STM32G474CET6 sits at the heart of an industrial-grade BMS that handles cell balancing, state-of-charge estimation, and CAN-based telematics in a single chip. The five ADCs sample 10- to 16-cell stacks at 4 MSPS while the integrated 12-bit DAC drives the active-balancing current-set reference. The CORDIC unit accelerates Coulomb counting and impedance-tracking math, while USB Type-C PD 3.0 supports fast-charge protocols for cordless-tool battery packs. Compared to traditional BMS implementations using a low-end MCU plus a separate AFE, the STM32G474CET6 cuts components by roughly 30 percent. The pin-compatible STM32G431CBT3 is a sensible lower-cost choice when 128 KB Flash suffices.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für STM32G474CET6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | STM32G473CET6 | STM32G474CBT3 | STM32G431CBT3 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Core | Cortex-M4F, 170 MHz | Cortex-M4F, 170 MHz | Cortex-M4F, 170 MHz | Cortex-M4F, 170 MHz |
| Flash Memory | 512 KB | 512 KB | 256 KB | 128 KB |
| CORDIC / FMAC Math Accelerator | Yes (CORDIC + FMAC) | No | Yes (CORDIC + FMAC) | No |
| High-Resolution Timer | 12 channels, 184 ps | 12 channels, 184 ps | 12 channels, 184 ps | 10 channels, 184 ps |
| USB Type-C / PD 3.0 | Yes | Yes | Yes | Yes (USB 2.0 FS only) |
| Approx. Unit Price @ 1k | $6.95 | ~$5.90 | ~$5.50 | ~$3.20 |
Wichtigste Unterscheidungsmerkmale
- Industry-leading 184 ps high-resolution timer + 12 channels in this pin count (vs. STM32G473CET6)
- On-chip CORDIC + FMAC math accelerators (vs. STM32G473CET6)
- Five 12-bit 4 MSPS ADCs (vs. STM32G431CBT3)
Designhinweise
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of every VDD/VDDA pin and a 4.7 uF bulk cap near the regulator output. For USB Host or Device operation ensure VDD is at least 3.0 V, otherwise use the internal LDO with VDD between 1.71 V and 2.0 V (USB not functional). For battery-backed RTC, connect a 1.55 V to 3.6 V battery to VBAT to retain RTC and backup registers when VDD is removed (per STMicroelectronics STM32G474 datasheet).
Route the high-resolution timer complementary PWM outputs (HRTIM_CHA1/CHA1N, etc.) as differential pairs on the PCB top layer to avoid timing skew of more than ~2 mm. Place the CORDIC / FMAC clock source (HSE crystal or external clock) within 10 mm of OSC_IN / OSC_OUT and keep routing away from switching FETs. For mixed-signal designs, isolate the analog ground (VSS pin family) from the digital ground using a single-point connection under the part (per STM32G4 hardware design guide AN4899).
Do not exceed the absolute-maximum VDD rating of 4.0 V; transients above this latch up the internal regulator. Use BOOT0 = GND for normal Flash boot; tie BOOT0 through a 100 kOhm pulldown. The 4 MSPS ADC requires VREF+ between 1.8 V and 3.6 V with at least 1 uF bypass; injecting heavy RF on ADC inputs can degrade ENOB. For CORDIC code templates and configuration options, refer to the STM32CubeG4 firmware package (free from ST) and the CORDIC application note AN5305.
Estimated: At 170 MHz core clock running FOC motor control, the STM32G474CET6 draws roughly 30 mA core current (estimated, per STM32G4 typical power benchmark). In the 48-LQFP package with a theta_JA of approximately 65 C/W on a 2-layer JEDEC test board, sustained motor-control loop operation rises the junction by roughly 5 C above ambient - well within the 85 C industrial-grade limit. For high-current-dense digital-power designs, add thermal vias on a 4-layer board, which drops theta_JA to roughly 35 C/W.
Compliance-Informationen
Industrial-grade -40C to +85C variant. RoHS compliant per ST product page. Not AEC-Q100 qualified; STM32G474CET6A or similar Q-grade part should be sourced for automotive applications.
