STMicroelectronics STM32G474VBT6

Overview

STM32G474VBT6 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, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DACs, six operational amplifiers, and a high-resolution timer (HRTIM) with 184 ps resolution - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G474VBT6 datasheet, STM32G474VBT6 pinout, STM32G474VBT6 application, or STM32G474VBT6 equivalent, key selection criteria include HRTIM timing precision for PWM-based power stages, dual-bank Flash with read-while-write for robust firmware updates, CORDIC/FMAC hardware accelerators for real-time trigonometric and filtering computations, and FDCAN FD support for deterministic industrial networking.

Technical Context

The STM32G474VBT6 implements an adaptive real-time accelerator (ART Accelerator) enabling zero-wait-state execution from Flash memory, critical for deterministic interrupt latency in closed-loop control. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.

It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), supporting flexible data-rate up to 5 Mbit/s, alongside a dedicated USB Type-C™/Power Delivery controller (UCPD) with hardware PD protocol engine - distinguishing it from standard USB FS interfaces.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 100 pins, thermally enhanced for sustained 170 MHz operation in industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G474VBT6, the STM32G474RET6 trades I/O count and UCPD capability for compactness, while the STM32H743VIT6 delivers raw throughput at the expense of analog timing precision and hardware math acceleration - making the G474VBT6 uniquely balanced for deterministic mixed-signal control.

Availability

STM32G474VBT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, smart energy metering, and industrial gateway applications requiring stable component supply across extended product lifecycles.

Supply support for STM32G474VBT6 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32G4 series targets high-efficiency digital power, motor control, and industrial automation - combining real-time analog integration, hardware math acceleration, and functional safety readiness (IEC 61508 SIL-2 capable).

FAQ

What is the maximum operating temperature range for STM32G474VBT6?

The STM32G474VBT6 is specified for industrial temperature range: –40 °C to +85 °C (ambient). Its thermal resistance (θ_JA) is 34.5 °C/W in LQFP100 package, validated per JEDEC JESD51-2. Derating applies above 70 °C ambient depending on PCB copper area and airflow - full 170 MHz operation is guaranteed across the entire range when VDD ≥ 2.7 V.

Does STM32G474VBT6 support hardware encryption for secure boot?

Yes - it includes a true random number generator (RNG), CRC calculation unit, and securable memory areas with proprietary code readout protection (PCROP). While it lacks a dedicated cryptographic accelerator (e.g., AES engine), PCROP and secure boot ROM enable verified firmware loading from Flash, meeting IEC 62443-3-3 SL2 requirements when combined with external secure element or trusted firmware.

Can the HRTIM generate complementary PWM signals with programmable dead time?

Yes - the HRTIM provides six independent 16-bit timers with fully programmable dead-time insertion (down to 184 ps resolution), automatic fault-triggered shutdown, and synchronous ADC triggering. It supports push-pull, three-phase, and interleaved topologies directly, eliminating need for external dead-time ICs in SiC/GaN inverter designs.

Is the USB interface on STM32G474VBT6 compatible with USB 2.0 High-Speed?

No - the integrated USB peripheral is USB 2.0 Full-Speed (12 Mbit/s) only, with Link Power Management (LPM) and Battery Charging Detection (BCD) support. It does not implement High-Speed (480 Mbit/s) PHY. For higher bandwidth, external USB HS transceivers or alternative interfaces (e.g., Ethernet via external MAC) must be used.