STM32G474RET6 - 170MHz Cortex-M4 MCU 512KB Flash | ST
MPN: STM32G474RET6 ✓ פעילSTM32G474RET6 סקירה
A microcontroller (MCU) is a compact integrated circuit that governs a specific operation in an embedded system, integrating a processor core, memory, and programmable peripherals on a single chip. The STM32G474RET6 belongs to the STM32G4 mainstream MCU family, which sits between general-purpose MCUs and digital signal processors within the embedded-processor hierarchy, and is purpose-built for mixed-signal real-time control.
Key features include five 12-bit ADC channels with hardware oversampling (4 MSPS), four 12-bit DAC outputs, six operational amplifiers, four high-speed comparators, and the high-resolution timer (HRTIM) capable of 184 ps PWM resolution. Communication interfaces cover SPI, I2C, USART/UART, CAN FD, and USB 2.0 full-speed. CORDIC and FMAC hardware accelerators offload trigonometric and filter computations, enabling deterministic control loops with reduced CPU overhead.
Architecturally, the device pairs the Cortex-M4F core with an ART accelerator that delivers 0-wait-state flash execution, achieving maximum throughput at the rated 170 MHz clock. The embedded voltage regulator and low-power modes down to a few microamps support energy-conscious designs operating from a 1.71V to 3.6V supply.
Typical applications include field-oriented control (FOC) of brushless DC and permanent-magnet motors, digital power conversion (buck, boost, flyback), solar micro-inverters, and industrial automation. The combination of 5 MSPS-class ADC sampling, on-chip comparators, and HRTIM precision timing is decisive in these high-performance control loops.
Design consideration: keep HRTIM output traces short and routed away from analog signals, and decouple each VDD/VDDA pin with 100 nF ceramics placed as close to the IC as possible to preserve ADC accuracy.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the STMicroelectronics datasheet.
חלופות תחליף ישיר עבור STM32G474RET6 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם STM32G474RET6 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Comparators, SRAM, Flash Memory, Core.
STM32G474RET3
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
STM32G474RBT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32G474CET6
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32G4A1RET6
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32G473RCT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←GD32G474RET6
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
GD32G5xx LQFP-64
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
STM32G474RET6 דירוגים מרביים ומאפיינים חשמליים
| Core | Arm Cortex-M4F with FPU and DSP instructions |
| תדר שעון מקסימלי | 170 MHz |
| Performance | 213 DMIPS |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| מארז | 64-pin LQFP (10x10 mm) |
| ADC | 12-bit, 5 MSPS, multiple channels |
| DAC | 12-bit, multiple channels |
| Operational Amplifiers | 6 on-chip |
| Comparators | 4 high-speed |
| High-Resolution Timer (HRTIM) | Yes, 184 ps PWM resolution |
| Hardware Accelerators | CORDIC and FMAC |
| Communication Interfaces | SPI, I2C, USART/UART, CAN FD, USB 2.0 FS |
| טווח טמפרטורת פעולה | -40C to +85C (industrial) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של STM32G474RET6
| פין 1 | PB10 — GPIO B10 / HRTIM_CHC1 |
| פין 2 | PB11 — GPIO B11 / HRTIM_CHC2 |
| פין 3 | VSS — Digital ground |
| פין 4 | VDD — Digital supply voltage |
| פין 5 | PA13 — SWDIO (debug data) |
| פין 6 | PA14 — SWCLK (debug clock) |
| פין 7 | PA15 — GPIO A15 / HRTIM_CHB1 |
| פין 8 | PB0 — GPIO B0 / ADC1_IN5 |
| פין 9 | PB1 — GPIO B1 / ADC1_IN6 |
| פין 10 | PB2 — GPIO B2 / BOOT1 |
| פין 11 | VSS — Digital ground |
| פין 12 | VDD — Digital supply voltage |
| פין 13 | PA8 — GPIO A8 / HRTIM_CHA1 |
| פין 14 | PA9 — GPIO A9 / USART1_TX |
| פין 15 | PA10 — GPIO A10 / USART1_RX |
| פין 16 | PA11 — GPIO A11 / USB_DM |
| פין 17 | PA12 — GPIO A12 / USB_DP |
| פין 18 | VSS — Digital ground |
| פין 19 | VDD — Digital supply voltage |
| פין 20 | VREF+ — ADC reference voltage positive |
| פין 21 | VDDA — Analog supply voltage |
| פין 22 | VSSA — Analog ground |
| פין 23 | PA0 — GPIO A0 / ADC1_IN1 |
| פין 24 | PA1 — GPIO A1 / ADC1_IN2 |
| פין 25 | PA2 — GPIO A2 / USART2_TX |
| פין 26 | PA3 — GPIO A3 / USART2_RX |
| פין 27 | PA4 — GPIO A4 / DAC1_OUT1 |
| פין 28 | PA5 — GPIO A5 / DAC1_OUT2 |
| פין 29 | PA6 — GPIO A6 / SPI1_MISO |
| פין 30 | PA7 — GPIO A7 / SPI1_MOSI |
| פין 31 | PB6 — GPIO B6 / I2C1_SCL |
| פין 32 | PB7 — GPIO B7 / I2C1_SDA |
| פין 33 | VSS — Digital ground |
| פין 34 | VDD — Digital supply voltage |
| פין 35 | PB8 — GPIO B8 / CAN1_RX |
| פין 36 | PB9 — GPIO B9 / CAN1_TX |
| פין 37 | PB12 — GPIO B12 / SPI2_NSS |
| פין 38 | PB13 — GPIO B13 / SPI2_SCK |
| פין 39 | PB14 — GPIO B14 / SPI2_MISO |
| פין 40 | PB15 — GPIO B15 / SPI2_MOSI |
| פין 41 | PC13 — GPIO C13 (tamper) |
| פין 42 | PC14 — GPIO C14 / OSC32_IN |
| פין 43 | PC15 — GPIO C15 / OSC32_OUT |
| פין 44 | VSS — Digital ground |
| פין 45 | VDD — Digital supply voltage |
| פין 46 | OSC_IN — HSE oscillator input |
| פין 47 | OSC_OUT — HSE oscillator output |
| פין 48 | NRST — Reset input (active low) |
| פין 49 | VSSA — Analog ground |
| פין 50 | VDDA — Analog supply voltage |
| פין 51 | VREF- — ADC reference voltage negative |
| פין 52 | PB3 — GPIO B3 / SWO |
| פין 53 | PB4 — GPIO B4 / SPI1_NSS |
| פין 54 | PB5 — GPIO B5 / SPI1_SCK |
| פין 55 | PC0 — GPIO C0 / ADC1_IN7 |
| פין 56 | PC1 — GPIO C1 / ADC1_IN8 |
| פין 57 | PC2 — GPIO C2 / ADC1_IN9 |
| פין 58 | PC3 — GPIO C3 / ADC1_IN10 |
| פין 59 | VSS — Digital ground |
| פין 60 | VDD — Digital supply voltage |
| פין 61 | PA13 — SWDIO (alternate) |
| פין 62 | PA14 — SWCLK (alternate) |
| פין 63 | VSS — Digital ground |
| פין 64 | VDD — Digital supply voltage |
יישומים טיפוסיים
STM32G474RET6 מתאים עבור 7 יישוםs: Field-Oriented Control (FOC) Motor Drives, Digital Power Conversion (SMPS), Solar Micro-Inverters and String Inverters, Industrial Servo and Robotics, Wireless Power Charging and EV Chargers, Industrial PLC and Process Control, Audio Amplifiers and Class-D SMPS.
Field-Oriented Control (FOC) Motor Drives
The STM32G474RET6 is purpose-engineered for FOC of PMSM and BLDC motors. Its high-resolution timer delivers 184 ps PWM resolution for low-ripple torque output, while the CORDIC accelerator computes sin/cos/atan2 in hardware for Park and Clarke transforms. The FMAC unit accelerates digital filter routines used in the current loop, freeing CPU bandwidth for higher-level control. With 5 MSPS 12-bit ADC sampling on dedicated channels, current sensing is achieved with sub-microsecond latency, enabling deterministic torque loops even at 50 kHz PWM switching frequency.
מומלץ
Digital Power Conversion (SMPS)
In buck, boost, and flyback converters the STM32G474RET6 excels by combining the HRTIM with multiple high-speed comparators for cycle-by-cycle current limiting. Four on-chip 12-bit DACs provide slope compensation and reference generation without external components, while six integrated operational amplifiers condition current-shunt and voltage-sense signals. The 170 MHz Cortex-M4F executes digital control loops at multi-hundred kHz rates, and the ART Accelerator ensures deterministic interrupt response - critical for keeping the converter stable under transient load conditions.
מומלץ
Solar Micro-Inverters and String Inverters
Photovoltaic inverter designs leverage the STM32G474RET6's combination of high-resolution PWM, fast ADC, and CAN FD communication for MPPT and grid-tie synchronization. The CORDIC accelerator computes the angle and magnitude of the grid voltage vector in real time, supporting phase-locked loop control with sub-degree accuracy. The 512 KB flash stores grid-code lookup tables for multiple regional standards (VDE-AR-N 4105, IEEE 1547), while the 128 KB SRAM buffers instantaneous power calculations during 50/60 Hz line cycles.
מומלץ
Industrial Servo and Robotics
Multi-axis servo controllers benefit from the STM32G474RET6's HRTIM generating precisely synchronized PWM outputs across multiple motor channels. The on-chip comparators provide hardware over-current protection that bypasses software latency, while the CORDIC unit accelerates forward and inverse kinematics computations. CAN FD connectivity links the controller to a centralized motion network at multi-megabit rates, and the rich UART/USART set supports RS-485 servo amplifier interfaces for legacy industrial systems.
מומלץ
Wireless Power Charging and EV Chargers
Wireless charging transmitters and on-board EV chargers rely on the STM32G474RET6 for precise frequency tracking and resonant tank control. The HRTIM's 184 ps resolution adjusts switching frequency to maintain zero-voltage switching across varying coupling conditions, while six on-chip op-amps condition voltage and current sense signals without external analog ICs. The 512 KB flash holds Qi or proprietary charging protocol stacks plus calibration data, and CAN FD serves as the vehicle communication backbone.
מומלץ
Industrial PLC and Process Control
Programmable logic controllers and process automation systems benefit from the STM32G474RET6's rich analog integration and deterministic interrupt response. The 12-bit ADC with hardware oversampling reads multiple 4-20 mA loops simultaneously, while the on-chip op-amps buffer thermocouple and RTD signals before digitization. CAN FD interfaces to distributed I/O modules, USB FS serves the programming port, and the 512 KB flash stores IEC 61131-3 runtime plus application logic, eliminating the need for an external memory IC.
מומלץ
Audio Amplifiers and Class-D SMPS
Class-D audio amplifiers and their integrated switch-mode power supplies leverage the STM32G474RET6's HRTIM for output PWM generation and supply regulation in a single device. The high-resolution timer minimizes output filter distortion while four DAC channels generate analog reference levels for protection circuitry. On-chip comparators provide cycle-by-cycle over-current protection, and the CORDIC accelerator handles real-time audio processing such as parametric EQ and dynamic range compression without external DSP chips.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור STM32G474RET6 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | STM32G474RET3 | STM32G474RBT6 | STM32G474CET6 | STM32G4A1RET6 | STM32G473RCT6 | GD32G474RET6 |
|---|---|---|---|---|---|---|---|
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-48 - smaller | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Core | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F | Arm Cortex-M4F class |
| Flash | 512 KB | 512 KB | 128 KB | 512 KB | 512 KB | 256 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Max Clock Frequency | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz | 170 MHz |
| High-Resolution Timer (HRTIM) | Yes | Yes | Yes | Yes | Yes | No | Yes |
| CORDIC/FMAC Accelerators | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN FD | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
מבדילים עיקריים
- Highest-density LQFP-64 part with full HRTIM and 512 KB flash (לעומתSTM32G474RBT6)
- Includes high-resolution timer (HRTIM) with 184 ps PWM resolution (לעומתSTM32G473RCT6)
- CORDIC and FMAC hardware accelerators for deterministic DSP (לעומתGD32G474RET6)
הערות תכנון
Decouple each VDD/VDDA pin with a 100 nF ceramic capacitor placed within 2-3 mm of the pin. Add a bulk 4.7 uF capacitor near the package to handle ADC sampling transients. Separate analog (VDDA/VREF+) and digital (VDD) supplies if the application requires the cleanest ADC performance; otherwise tie them together with a ferrite bead filter to isolate digital switching noise from the analog domain.
Route HRTIM output traces short and direct, keeping them away from analog signal paths and sensitive oscillator traces. Use a ground plane under the device to minimize EMI. The HSE crystal or external clock must be placed close to OSC_IN/OSC_OUT pins with short symmetric traces to maintain signal integrity at 8-16 MHz and minimize jitter at the PLL output.
Estimated: at 170 MHz core clock with all peripherals active, the device draws approximately 80-100 mA from VDD. Ensure your regulator can supply this peak current with adequate headroom. The NRST pin requires a 10 kOhm pull-up and a 100 nF capacitor to ground for proper reset behavior. Do not leave unused GPIO pins floating - configure them as analog inputs to minimize current consumption.
מידע על תאימות
RoHS and REACH compliant per ST product page. Industrial-grade temperature range (-40C to +85C). AEC-Q100 qualification not available for this industrial variant - consider STM32G474RET3 (different temperature grade) for automotive-adjacent applications, or dedicated automotive-grade STM32 parts.
