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STM32G474QET6

STM32G474QET6

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Product Overview

The STM32G474QET6 is a high-performance mainstream microcontroller from STMicroelectronics based on a 32-bit Arm Cortex-M4 processor operating at up to 170 MHz. It integrates a single-precision FPU, DSP instructions, Memory Protection Unit (MPU), ART Accelerator, advanced mathematical accelerators and extensive analog peripherals.

The STM32G474QET6 provides 512 KB of Flash memory and up to 128 KB of SRAM, together with high-speed ADCs, DACs, comparators, operational amplifiers, motor-control timers, a 184 ps high-resolution timer, FDCAN, USB, UCPD, multiple SPI/I²C/USART interfaces and a Quad-SPI memory interface.

The device is particularly suited to digital power conversion, motor control, industrial automation, robotics, battery management, EV charging, power supplies, instrumentation and high-performance embedded control. ST specifically identifies the STM32G474QET6 as the full-pin-count STM32G474QE device in a 128-pin LQFP package.

Key Features

  • Arm 32-bit Cortex-M4 CPU with FPU

  • CPU frequency up to 170 MHz

  • Up to 213 DMIPS

  • DSP instructions

  • Memory Protection Unit

  • ART Accelerator

  • 512 KB Flash memory with ECC

  • 128 KB SRAM with parity/ECC protection features

  • Dual-bank Flash with read-while-write support

  • 1 KB OTP memory

  • CORDIC mathematical accelerator

  • FMAC filter mathematical accelerator

  • 5 × 12-bit ADCs

  • ADC conversion rate up to 5 Msps

  • 7 × DAC channels

  • 7 × ultra-fast comparators

  • 6 × operational amplifiers

  • Voltage reference buffer

  • High-resolution timer with 184 ps resolution

  • Multiple motor-control PWM timers

  • 3 × FDCAN

  • 4 × I²C

  • 4 × SPI

  • 3 × USART

  • 2 × UART

  • 1 × LPUART

  • USB 2.0 Full-Speed device

  • USB-C Power Delivery support

  • Quad-SPI interface

  • SAI audio interface

  • 1.71 V to 3.6 V supply

  • -40°C to +85°C operating temperature

  • LQFP-128 package

  • ECOPACK2 compliant

  • Active / volume production device

Technical Specifications

Parameter Specification
Manufacturer STMicroelectronics
Part Number STM32G474QET6
Device Family STM32G474QE
Series STM32G4
Core Arm Cortex-M4
Maximum CPU Frequency 170 MHz
Performance Up to 213 DMIPS
Flash Memory 512 KB
SRAM 128 KB
ADC 5 × 12-bit
Maximum ADC Speed 5 Msps
DAC 7 channels
Comparators 7
Operational Amplifiers 6
CORDIC Yes
FMAC Yes
High-Resolution Timer 184 ps resolution
FDCAN 3
I²C 4
SPI 4
USART 3
UART 2
LPUART 1
USB USB 2.0 Full-Speed
UCPD USB Type-C Power Delivery
Supply Voltage 1.71 V to 3.6 V
Operating Temperature -40°C to +85°C
Package LQFP-128
Package Size 14 × 14 × 1.4 mm
Packing Tray
Product Status Active / Volume Production

ST specifies the STM32G474QET6 as a 170 MHz Cortex-M4 MCU with 512 KB Flash, up to 128 KB SRAM and an LQFP-128 14 × 14 × 1.4 mm package.

Processor & Architecture

The STM32G474QET6 integrates a high-performance Arm Cortex-M4 32-bit RISC processor operating at up to 170 MHz.

The Cortex-M4 core includes:

  • Single-precision floating-point unit

  • DSP instruction set

  • Memory Protection Unit

  • ART Accelerator

  • Up to 213 DMIPS performance

  • Nested Vectored Interrupt Controller

  • Hardware multiply and divide support

  • Low-power operating modes

The combination of Cortex-M4 processing and dedicated mathematical accelerators makes the STM32G474QET6 particularly suitable for advanced digital-control algorithms and real-time signal processing.

Memory & Storage

The STM32G474QET6 provides a large integrated memory subsystem:

  • 512 KB Flash memory

  • Flash ECC support

  • Dual-bank Flash

  • Read-while-write capability

  • Proprietary Code Readout Protection (PCROP)

  • Securable memory area

  • 1 KB OTP

  • Up to 128 KB SRAM

  • SRAM parity protection

  • Quad-SPI interface for external Flash memory

  • Flexible memory interface resources

The large Flash and SRAM capacity allows the MCU to accommodate sophisticated control firmware, communication stacks, DSP algorithms and real-time power-management software.

Analog Peripherals

The STM32G474QET6 provides one of the strongest analog peripheral sets in the STM32G4 family.

ADC

  • 5 × 12-bit ADCs

  • Up to 5 Msps conversion speed

  • Hardware oversampling

  • Differential and single-ended conversion capabilities

  • Multiple analog channels

  • Internal reference and monitoring functions

DAC

  • 7 × 12-bit DAC channels

  • 3 external buffered DAC channels

  • 4 internal DAC channels

Comparators

  • 7 high-speed comparators

  • Flexible internal routing

  • Internal reference options

  • Fast response for protection and control loops

Operational Amplifiers

  • 6 integrated op-amps

  • Programmable gain configurations

  • Internal routing options

  • Suitable for current sensing and signal conditioning

Reference

  • Integrated voltage reference buffer

  • Internal voltage-reference resources

These analog features make the STM32G474QET6 particularly well suited to power converters, motor drives, battery systems and precision industrial control.

Timer & PWM Resources

The STM32G474QET6 provides extensive timing and PWM resources designed particularly for power electronics and motor-control applications.

Resources include:

  • High-resolution timer with 184 ps resolution

  • Multiple motor-control PWM timers

  • 32-bit general-purpose timers

  • Multiple 16-bit general-purpose timers

  • Low-power timer

  • Basic timers

  • Advanced PWM generation

  • Input capture

  • Output compare

  • Quadrature encoder support

  • Independent watchdog

  • Window watchdog

  • SysTick

  • RTC

The HRTIM is especially valuable for high-frequency power conversion, PFC, DC-DC converters, resonant converters, digital power supplies and EV charging applications.

Communication & Connectivity

The STM32G474QET6 integrates a comprehensive range of communication interfaces.

CAN

  • 3 × FDCAN

  • CAN FD support

  • Flexible message filtering

  • Suitable for industrial and automotive-adjacent control systems

USB

  • USB 2.0 Full-Speed device interface

  • USB device functionality

  • USB Type-C Power Delivery support through UCPD

I²C

  • 4 × I²C

  • Fast-mode Plus capability

  • SMBus support

  • PMBus support

  • Wake-up capability

SPI

  • 4 × SPI

  • High-speed synchronous communication

  • I²S functionality on supported peripherals

USART / UART

  • 3 × USART

  • 2 × UART

  • 1 × LPUART

  • LIN support

  • IrDA support on supported interfaces

Audio

  • SAI audio interface

External Memory

  • Quad-SPI Flash interface

  • Flexible external-memory connectivity

These interfaces allow the STM32G474QET6 to connect to sensors, gate drivers, displays, external Flash, communication transceivers and industrial control networks.

Clock & Power Management

The STM32G474QET6 provides flexible clock-generation and power-management resources.

Clock sources include:

  • High-speed internal oscillator

  • High-speed external oscillator

  • Low-speed internal oscillator

  • Low-speed external oscillator

  • Multiple PLL configurations

  • High-speed internal clock for USB and peripheral operation

The device operates from 1.71 V to 3.6 V and provides independent analog supply options for high-performance ADC, DAC, comparator and operational-amplifier operation.

The MCU also includes an integrated voltage-regulator architecture and supports independent power domains for selected peripherals.

Low-Power Operation

The STM32G474QET6 supports multiple low-power modes:

  • Sleep mode

  • Low-power run

  • Low-power sleep

  • Stop mode

  • Standby mode

  • Shutdown mode

  • VBAT backup domain

The RTC and backup domain can remain active during selected low-power states, making the MCU suitable for applications requiring periodic wake-up and low standby consumption.

Power Management

Power-management features include:

  • 1.71 V to 3.6 V operating voltage

  • Integrated voltage regulator

  • Independent analog supply

  • Separate USB supply support

  • VBAT backup supply

  • Power-on reset

  • Power-down reset

  • Brownout reset

  • Programmable voltage detector

  • Multiple low-power modes

  • Independent watchdog

  • Window watchdog

These features support reliable operation in industrial power-management, battery-powered and digitally controlled power-conversion systems.

Security & Data Integrity

The STM32G474QET6 includes several hardware mechanisms for firmware protection and data integrity.

Security and protection resources include:

  • Memory Protection Unit

  • Flash ECC

  • SRAM parity protection

  • Proprietary Code Readout Protection

  • Securable memory area

  • 1 KB OTP memory

  • CRC calculation unit

  • 96-bit unique device ID

  • Secure debug-related protection features

  • Analog protection and monitoring functions

These features improve firmware integrity and system reliability in industrial and connected embedded applications.

Development & Debugging

Development and debugging features include:

  • Serial Wire Debug

  • JTAG-compatible debug capabilities

  • STM32CubeIDE support

  • STM32CubeMX configuration

  • STM32CubeProgrammer

  • ST-LINK programming and debugging

  • IAR Embedded Workbench support

  • Arm Keil development tools

  • STM32Cube software ecosystem

The STM32G474QET6 is supported by ST's established STM32G4 development ecosystem, including dedicated digital-power and motor-control software packages.

Applications

The STM32G474QET6 is particularly suitable for:

  • Digital power supplies

  • PFC controllers

  • DC-DC converters

  • DC-AC inverters

  • EV charging

  • Battery management systems

  • Motor control

  • Servo drives

  • Industrial automation

  • Robotics

  • Smart power systems

  • Server and telecom power

  • Solar power systems

  • Energy storage systems

  • Industrial instrumentation

  • Power-factor correction

  • High-frequency power conversion

  • Embedded control

  • Consumer appliances

ST specifically highlights the STM32G474QET6 for power supplies and converters, digital power, server and telecom power, and EV charging applications.

Benefits

  • High-performance control: 170 MHz Arm Cortex-M4 with FPU and DSP instructions

  • Large memory: 512 KB Flash and 128 KB SRAM

  • Advanced mathematics: Integrated CORDIC and FMAC accelerators

  • Exceptional analog integration: Five ADCs, seven DAC channels, seven comparators and six op-amps

  • High-resolution PWM: 184 ps HRTIM resolution for advanced power conversion

  • Motor-control optimized: Multiple advanced PWM timers and FDCAN interfaces

  • Extensive connectivity: FDCAN, USB, UCPD, SPI, I²C, USART, UART and SAI

  • External-memory support: Quad-SPI interface

  • Industrial reliability: -40°C to +85°C operating temperature for the exact T6 grade

  • Full pin count: 128-pin LQFP package provides extensive I/O and peripheral access

  • Active production device: STMicroelectronics lists the exact STM32G474QET6 as active and in stock.

Packaging & Ordering Information

  • Part Number: STM32G474QET6

  • Manufacturer: STMicroelectronics

  • Device Family: STM32G474QE

  • Package: LQFP-128

  • Package Size: 14 × 14 × 1.4 mm

  • Supply Voltage: 1.71 V to 3.6 V

  • Operating Temperature: -40°C to +85°C

  • Packing: Tray

  • Product Status: Active / Volume Production

  • RoHS / Environmental: ECOPACK2

ST's current online store lists the exact STM32G474QET6 as an active industrial device in LQFP-128 14 × 14 × 1.4 mm, with tray packaging. The corresponding STM32G474QET6TR is the tape-and-reel ordering option.

Datasheet

For complete electrical characteristics, pin configuration, memory architecture, ADC specifications, timer configuration, communication interfaces, absolute maximum ratings, analog peripheral specifications, high-resolution timer configuration, and application information, please refer to the official STMicroelectronics documentation.

Datasheet: Official STM32G474QET6 Datasheet

Frequently Asked Questions

What is STM32G474QET6?
STM32G474QET6 is a high-performance 170 MHz Arm Cortex-M4 microcontroller from STMicroelectronics with 512 KB Flash, 128 KB SRAM, advanced analog peripherals, mathematical accelerators and high-resolution PWM resources.

How much Flash memory does STM32G474QET6 have?
The STM32G474QET6 provides 512 KB of Flash memory with ECC support and dual-bank read-while-write capability.

How much SRAM does STM32G474QET6 have?
The device provides up to 128 KB of SRAM.

What is the maximum CPU frequency?
The Arm Cortex-M4 processor operates at up to 170 MHz, with performance up to 213 DMIPS.

How many ADCs are integrated?
The STM32G474QE family provides five fast 12-bit ADCs, with conversion speeds up to 5 Msps.

Does STM32G474QET6 support motor control?
Yes. It provides multiple advanced-control PWM resources and a high-resolution timer, making it particularly suitable for motor drives, power conversion and digital-control applications.

What is the HRTIM resolution?
The integrated high-resolution timer provides 184 ps resolution, making it suitable for high-frequency power-conversion applications.

What package does STM32G474QET6 use?
The exact STM32G474QET6 uses a 128-pin LQFP package measuring 14 × 14 × 1.4 mm.

What is the difference between STM32G474QET6 and STM32G474QET6TR?
They use the same MCU silicon and package. STM32G474QET6 is the tray-packed ordering code, while STM32G474QET6TR is the tape-and-reel version. ST lists both as active products.

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