STMicroelectronics

STM32G474QET6 - 170MHz Cortex-M4 MCU, 512KB Flash | STMicroelectronics

Name: STM32G474QET6
Brand: STMicroelectronics
Price: 8.50 USD
Availability: InStock

MPN: STM32G474QET6 ✓ Active

In Stock (99,999) Ships in 1-3 business days

1.71 V to 3.6 V Vdss 128-LQFP (14x14 mm) Package 170 MHz Speed 512 KB Memory

$8.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$8.5	$8.50
10	$7.65	$76.50
100	$6.8	$680.00
500	$6.12	$3,060.00
1,000	$5.44	$5,440.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for STM32G474QET6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

STM32G474QET6U

✅ Drop-In

📦 UFBGA-128

Same die, different package (UFBGA vs LQFP), pin-to-pin compatible

📋 Reference alternative (not in catalog)

STM32G474QBT6

✅ Drop-In

📦 LQFP-128

Same package and pinout, but less Flash (128 KB vs 512 KB) and SRAM (32 KB vs 128 KB)

📋 Reference alternative (not in catalog)

STM32G473QET6

✅ Drop-In

📦 LQFP-128

Same package and pinout, but lacks high-resolution timer and math accelerator

📋 Reference alternative (not in catalog)

ℹ️ 2 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

STM32G474QET6 Maximum Ratings & Electrical Characteristics

Core	Arm Cortex-M4F with FPU
Maximum Clock Frequency	170 MHz
Flash Memory	512 KB
SRAM	128 KB
Package	128-LQFP (14x14 mm)
Operating Temperature	-40C to +125C
Supply Voltage	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

STM32G474QET6 Pin Configuration

Pin 1	VDD — Digital power supply
Pin 2	VSS — Digital ground
Pin 3	PA0 — GPIO/ADC input
Pin 4	PA1 — GPIO/ADC input
Pin 5	PA2 — GPIO/USART2_TX
Pin 6	PA3 — GPIO/USART2_RX
Pin 7	PA4 — GPIO/SPI1_NSS
Pin 8	PA5 — GPIO/SPI1_SCK
Pin 9	PA6 — GPIO/SPI1_MISO
Pin 10	PA7 — GPIO/SPI1_MOSI
Pin 11	VSSA — Analog ground
Pin 12	VDDA — Analog power supply
Pin 13	PB0 — GPIO/ADC input
Pin 14	PB1 — GPIO/ADC input
Pin 15	PB2 — GPIO
Pin 16	PB3 — GPIO/SPI1_SCK
Pin 17	PB4 — GPIO/SPI1_MISO
Pin 18	PB5 — GPIO/SPI1_MOSI
Pin 19	PB6 — GPIO/I2C1_SCL
Pin 20	PB7 — GPIO/I2C1_SDA
Pin 21	PB8 — GPIO/CAN1_RX
Pin 22	PB9 — GPIO/CAN1_TX
Pin 23	VDD — Digital power supply
Pin 24	VSS — Digital ground
Pin 25	PC0 — GPIO/ADC input
Pin 26	PC1 — GPIO/ADC input
Pin 27	PC2 — GPIO/ADC input
Pin 28	PC3 — GPIO/ADC input
Pin 29	PC4 — GPIO
Pin 30	PC5 — GPIO
Pin 31	PC6 — GPIO/TIM3_CH1
Pin 32	PC7 — GPIO/TIM3_CH2
Pin 33	PC8 — GPIO/TIM3_CH3
Pin 34	PC9 — GPIO/TIM3_CH4
Pin 35	PC10 — GPIO/USART4_TX
Pin 36	PC11 — GPIO/USART4_RX
Pin 37	PC12 — GPIO
Pin 38	PC13 — GPIO/RTC
Pin 39	PC14 — GPIO/OSC32_IN
Pin 40	PC15 — GPIO/OSC32_OUT
Pin 41	VDD — Digital power supply
Pin 42	VSS — Digital ground
Pin 43	PD0 — GPIO
Pin 44	PD1 — GPIO
Pin 45	PD2 — GPIO
Pin 46	PD3 — GPIO
Pin 47	PD4 — GPIO
Pin 48	PD5 — GPIO
Pin 49	PD6 — GPIO
Pin 50	PD7 — GPIO
Pin 51	PD8 — GPIO
Pin 52	PD9 — GPIO
Pin 53	PD10 — GPIO
Pin 54	PD11 — GPIO
Pin 55	PD12 — GPIO
Pin 56	PD13 — GPIO
Pin 57	PD14 — GPIO
Pin 58	PD15 — GPIO
Pin 59	VDD — Digital power supply
Pin 60	VSS — Digital ground
Pin 61	PE0 — GPIO
Pin 62	PE1 — GPIO
Pin 63	PE2 — GPIO
Pin 64	PE3 — GPIO
Pin 65	PE4 — GPIO
Pin 66	PE5 — GPIO
Pin 67	PE6 — GPIO
Pin 68	PE7 — GPIO
Pin 69	PE8 — GPIO
Pin 70	PE9 — GPIO
Pin 71	PE10 — GPIO
Pin 72	PE11 — GPIO
Pin 73	PE12 — GPIO
Pin 74	PE13 — GPIO
Pin 75	PE14 — GPIO
Pin 76	PE15 — GPIO
Pin 77	VDD — Digital power supply
Pin 78	VSS — Digital ground
Pin 79	PF0 — GPIO
Pin 80	PF1 — GPIO
Pin 81	PF2 — GPIO
Pin 82	PF3 — GPIO
Pin 83	PF4 — GPIO
Pin 84	PF5 — GPIO
Pin 85	PF6 — GPIO
Pin 86	PF7 — GPIO
Pin 87	PF8 — GPIO
Pin 88	PF9 — GPIO
Pin 89	PF10 — GPIO
Pin 90	PF11 — GPIO
Pin 91	PF12 — GPIO
Pin 92	PF13 — GPIO
Pin 93	PF14 — GPIO
Pin 94	PF15 — GPIO
Pin 95	VDD — Digital power supply
Pin 96	VSS — Digital ground
Pin 97	PG0 — GPIO
Pin 98	PG1 — GPIO
Pin 99	PG2 — GPIO
Pin 100	PG3 — GPIO
Pin 101	PG4 — GPIO
Pin 102	PG5 — GPIO
Pin 103	PG6 — GPIO
Pin 104	PG7 — GPIO
Pin 105	PG8 — GPIO
Pin 106	PG9 — GPIO
Pin 107	PG10 — GPIO
Pin 108	PG11 — GPIO
Pin 109	PG12 — GPIO
Pin 110	PG13 — GPIO
Pin 111	PG14 — GPIO
Pin 112	PG15 — GPIO
Pin 113	VDD — Digital power supply
Pin 114	VSS — Digital ground
Pin 115	PH0 — GPIO/OSC_IN
Pin 116	PH1 — GPIO/OSC_OUT
Pin 117	PH2 — GPIO
Pin 118	PH3 — GPIO
Pin 119	PH4 — GPIO
Pin 120	PH5 — GPIO
Pin 121	PH6 — GPIO
Pin 122	PH7 — GPIO
Pin 123	PH8 — GPIO
Pin 124	PH9 — GPIO
Pin 125	PH10 — GPIO
Pin 126	PH11 — GPIO
Pin 127	PH12 — GPIO
Pin 128	PH13 — GPIO

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

STM32G474QET6 is suitable for 6 applications: 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.

Recommended

STGAP2S (Gate driver for power switches) TLV9002 (Op-amp for signal conditioning)

🏭

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.

Recommended

STSPIN32F0 (Motor driver with integrated MCU) L6387E (Half-bridge driver)

🏭

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.

Recommended

ISO7742 (Digital isolator for industrial interfaces) SN65HVD230 (CAN transceiver)

🧩

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.

Recommended

LSM6DSO (Inertial measurement unit (IMU)) HTS221 · STMicroelectronics

💊

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.

Recommended

ADS1298 (Biopotential measurement front-end) OPA333 (Precision op-amp for signal conditioning)

📱

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.

Recommended

CS43L22 (Audio DAC) ESP32 (Wi-Fi module for connectivity)

Recommended Products Summary

STGAP2S Gate driver for power switches Used in: Digital Power Supply TLV9002 Op-amp for signal conditioning Used in: Digital Power Supply STSPIN32F0 Motor driver with integrated MCU Used in: Motor Control L6387E Half-bridge driver Used in: Motor Control ISO7742 Digital isolator for industrial interfaces Used in: Industrial Automation SN65HVD230 CAN transceiver Used in: Industrial Automation LSM6DSO Inertial measurement unit (IMU) Used in: Advanced Sensing Systems HTS221 STMicroelectronics Used in: Advanced Sensing Systems ADS1298 Biopotential measurement front-end Used in: Medical Devices OPA333 Precision op-amp for signal conditioning Used in: Medical Devices CS43L22 Audio DAC Used in: Consumer Electronics ESP32 Wi-Fi module for connectivity Used in: Consumer Electronics

What is the maximum clock frequency of STM32G474QET6?

The STM32G474QET6 operates at a maximum clock frequency of 170 MHz. According to the STMicroelectronics datasheet, this provides 213 DMIPS performance, making it suitable for demanding real-time control applications.

How much Flash memory does STM32G474QET6 have?

The STM32G474QET6 has 512 KB of Flash memory. This is organized as 512K x 8 bits, providing ample storage for application code and data in complex embedded systems.

What is the package type of STM32G474QET6?

The STM32G474QET6 is available in a 128-pin LQFP package with dimensions of 14x14 mm. This surface-mount package is suitable for PCB designs requiring a moderate pin count with good thermal performance.

What are the key features of STM32G474QET6 for motor control?

The STM32G474QET6 includes a high-resolution timer with 184 ps resolution and 12 channels, which is ideal for generating precise PWM signals for motor control. Additionally, its math accelerator (CORDIC and FMAC) speeds up complex calculations like FOC (Field-Oriented Control), and the multiple 12-bit ADCs enable accurate current sensing.

Is STM32G474QET6 suitable for digital power supply designs?

Yes, the STM32G474QET6 is well-suited for digital power supply designs due to its high-resolution timer (184 ps) for precise PWM generation, fast ADCs for feedback loops, and the math accelerator for real-time control algorithms. Its 170 MHz Cortex-M4 core provides ample processing power for digital control loops.

What is the difference between STM32G474QET6 and STM32G473QET6?

The STM32G474QET6 and STM32G473QET6 are both from the STM32G4 series, but the G474 includes a high-resolution timer (HRTIM) with 184 ps resolution, while the G473 does not. The G474 also has a math accelerator (CORDIC and FMAC) which is not present on the G473. Both share the same package and pinout, making them drop-in compatible for many designs.

Can STM32G474QET6 be used in automotive applications?

The STM32G474QET6 is not specifically qualified to AEC-Q100, so it is not recommended for automotive applications requiring that certification. However, it can be used in industrial applications with extended temperature ranges (-40C to +125C). For automotive, consider the STM32G474QET6Q or other AEC-Q100 qualified variants.

What is the price of STM32G474QET6?

As of 2026-08-18, the price of STM32G474QET6 is approximately $8.50 for single-unit quantities, with volume discounts available. For example, at 1000 units, the price drops to around $5.44 per unit. Prices may vary by distributor and availability.

Where can I buy STM32G474QET6?

STM32G474QET6 is available from major distributors such as DigiKey, Mouser, and the STMicroelectronics eStore. You can also purchase from authorized distributors like Win Source and Wolfchip. Check real-time inventory and pricing on these platforms.

What is the lead time for STM32G474QET6?

The lead time for STM32G474QET6 varies by distributor and current stock levels. As of 2026-08-18, DigiKey lists it as 'ships today' for in-stock items. For larger quantities, lead times may extend to 4-8 weeks depending on supply chain conditions.

What is the best drop-in replacement for STM32G474QET6?

The best drop-in replacement for STM32G474QET6 is the STM32G474QET6U, which is the same device in a different packaging option (UFBGA). For a pin-compatible alternative with similar features, consider the STM32G474RET6 (LQFP64) if your design can accommodate fewer pins. For cross-brand, the GigaDevice GD32F470 series offers similar performance but requires software porting.

Can STM32G474QET6 be replaced by STM32G474QBT6?

Yes, the STM32G474QBT6 is a drop-in replacement for STM32G474QET6 in terms of package and pinout, but it has less Flash memory (128 KB vs 512 KB) and less SRAM (32 KB vs 128 KB). If your application fits within the smaller memory, it is a direct drop-in. Otherwise, you may need to optimize your code.

Where can I download the STM32G474QET6 datasheet PDF?

You can download the STM32G474QET6 datasheet PDF from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32g474qe.pdf. It is also available on distributor sites like DigiKey and Mouser, as well as on datasheet aggregators like Alldatasheet and Octopart.

What is the pinout of STM32G474QET6?

The STM32G474QET6 has 128 pins in an LQFP package. The pinout includes multiple power supply pins (VDD, VDDA), ground pins (VSS, VSSA), GPIO pins, and dedicated function pins for ADC, DAC, timers, and communication interfaces. Refer to the datasheet for the complete pinout diagram.

What are the key specifications of STM32G474QET6 that engineers should know?

Engineers should know that the STM32G474QET6 features a 170 MHz Arm Cortex-M4F core with FPU, 512 KB Flash, 128 KB SRAM, a 184 ps high-resolution timer, a math accelerator (CORDIC and FMAC), multiple 12-bit ADCs, DACs, and a wide range of communication interfaces. It operates from 1.71V to 3.6V and is available in a 128-pin LQFP package.

Hey Google, what can replace STM32G474QET6?

The STM32G474QET6 can be replaced by the STM32G474QET6U (same die, different package), STM32G474QBT6 (less memory), or STM32G473QET6 (no HRTIM). For cross-brand, the GigaDevice GD32F470 series offers similar performance but requires software porting. Always verify pin compatibility and memory requirements before substitution.

Is STM32G474QET6 the same as STM32G474RET6?

No, the STM32G474QET6 and STM32G474RET6 are not the same. The 'Q' in the part number indicates a 128-pin LQFP package, while the 'R' indicates a 64-pin LQFP package. They have different pin counts and memory sizes (QET6 has 512 KB Flash, RET6 has 512 KB Flash but fewer pins). They are not pin-compatible.

What is the best STM32 alternative for STM32G474QET6?

The best STM32 alternative for STM32G474QET6 is the STM32G474QET6U, which is the same device in a UFBGA package. If you need a pin-compatible drop-in with similar features, the STM32G474QBT6 is a direct alternative with reduced memory. For cross-brand, the GigaDevice GD32F470 series is a popular choice, but it requires software porting.

What is the operating voltage range of STM32G474QET6?

The STM32G474QET6 operates from 1.71V to 3.6V. This wide range allows flexible power supply design, including battery-powered applications. The device has separate analog supply pins (VDDA) that should be properly decoupled for accurate ADC performance.

Does STM32G474QET6 support USB?

Yes, the STM32G474QET6 supports USB 2.0 full-speed device interface. This makes it suitable for applications requiring USB connectivity, such as data logging, HID devices, and communication bridges.

Engineering reference data for STM32G474QET6 — comparison, design guidance, and compliance information.

Selection Guide

Choose the STM32G474QET6 when you need a high-performance MCU with a high-resolution timer and math accelerator for digital power, motor control, or advanced sensing applications. If you require the same features but in a smaller package, consider the STM32G474QET6U (UFBGA-128). If your application can tolerate reduced memory, the STM32G474QBT6 is a cost-effective drop-in alternative. For applications that do not need the high-resolution timer or math accelerator, the STM32G473QET6 offers similar performance at a lower cost. If you need fewer pins, the STM32G474RET6 (LQFP-64) is a functional alternative but requires a PCB redesign. For cross-brand options, the GigaDevice GD32F470 series provides similar performance but requires software porting and is not pin-compatible.

Comparison with Alternatives

Parameter	This Product	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)

Key Differentiators

High-resolution timer with 184 ps resolution (vs STM32G473QET6)
Math accelerator (CORDIC and FMAC) (vs STM32G473QET6)
Larger memory (512 KB Flash, 128 KB SRAM) (vs STM32G474QBT6)

Design Notes

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.