STMicroelectronics STM32G474VEH6

Overview

STM32G474VEH6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 96 KB SRAM (32 KB with hardware parity), and integrated high-resolution timer (HRTIM) with 184 ps resolution. It integrates CORDIC and FMAC math accelerators, 5×12-bit ADCs (0.25 µs conversion), 7×12-bit DACs, and 3×FDCAN controllers - deployed in motor control, digital power supplies, and industrial automation systems.

For engineers reviewing the STM32G474VEH6 datasheet, STM32G474VEH6 pinout, STM32G474VEH6 application, or STM32G474VEH6 equivalent, key selection criteria include HRTIM timing precision for PWM generation, dual-bank Flash read-while-write capability for firmware updates, analog integration density (ADC/DAC/OPAMP/COMP), and FDCAN FD support for deterministic real-time communication in embedded power electronics.

Technical Context

The STM32G474VEH6 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash memory, critical for deterministic interrupt latency in closed-loop motor control. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.

It features a dedicated High-Resolution Timer (HRTIM) with six 16-bit counters, 184 ps resolution, and programmable dead-time insertion - designed specifically for multi-phase synchronous rectification and resonant LLC converter control. The CORDIC and FMAC units offload trigonometric and FIR/IIR filtering computations from the CPU core.

Key Specifications

Pinout & Package

STM32G474VEH6 is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch), optimized for thermal dissipation and PCB routing density in industrial motor drives and power converters.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance mixed-signal microcontroller applications.

Compared with STM32G474RET6, the VE H6 offers expanded I/O and triple FDCAN for distributed motor control systems; versus STM32H743VIT6, it delivers superior analog integration and 184 ps timer resolution at lower power and cost - making it optimal for precision power electronics where timing determinism outweighs raw CPU speed.

Availability

STM32G474VEH6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, energy metering systems, and programmable logic controller modules requiring stable component supply and long-term production continuity.

Supply support for STM32G474VEH6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32G4 series targets high-efficiency digital power conversion and real-time motor control, combining advanced analog peripherals, math acceleration, and ultra-precise timing in a single chip - reducing system complexity and bill-of-materials cost.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32G474VEH6?

The STM32G474VEH6 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved with the ART Accelerator enabled and zero-wait-state Flash execution. Its Cortex-M4 core includes a single-precision FPU and DSP extensions, supporting IEEE 754-compliant floating-point operations and SIMD-style data processing for motor control and signal conditioning tasks.

Does the STM32G474VEH6 support firmware updates without interrupting real-time operation?

Yes. The device features dual-bank Flash memory with read-while-write capability and Proprietary Code Readout Protection (PCROP). This allows one bank to execute code while the other is being reprogrammed - enabling seamless over-the-air (OTA) or field firmware updates in motor drives and power supplies without halting control loops or losing timing synchronization.

How does the HRTIM improve timing precision in power electronics applications?

The HRTIM delivers 184 ps resolution across six independent 16-bit timers, with hardware-dead-time insertion, fault protection, and synchronous PWM outputs. In SiC/GaN-based converters, this enables precise gate drive timing alignment, minimizes shoot-through risk, and supports advanced modulation schemes like phase-shifted ZVS - directly improving efficiency and EMI performance without external timing ICs.

What analog features make the STM32G474VEH6 suitable for sensor signal conditioning?

It integrates five 12-bit ADCs (42 channels total, 0.25 µs conversion), seven 12-bit DACs, six rail-to-rail operational amplifiers (configurable as PGAs), seven comparators, and a programmable voltage reference buffer (VREFBUF) with 2.048 V / 2.5 V / 2.9 V outputs. These allow direct connection to resistive sensors, thermocouples, and current shunts - eliminating external op-amps, references, and ADC drivers in compact industrial sensing nodes.