STMicroelectronics STM32G474RCT6

Overview

STM32G474RCT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating at up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 96 KB SRAM (including 32 KB CCM-SRAM with parity), and integrated high-resolution timer (HRTIM) with 184 ps resolution. It supports advanced motor control, digital power conversion, and real-time signal processing in industrial inverters and digital power supplies.

For engineers reviewing the STM32G474RCT6 datasheet, STM32G474RCT6 pinout, STM32G474RCT6 application, or STM32G474RCT6 equivalent, key selection criteria include HRTIM timing precision, dual-bank Flash read-while-write capability, CORDIC/FMAC hardware accelerators for trigonometric and filtering operations, and FDCAN FD support for deterministic industrial networking.

Technical Context

The device implements an Adaptive Real-Time Accelerator (ART) enabling zero-wait-state execution from Flash memory, paired with a Memory Protection Unit (MPU) for secure task isolation. Its interconnect matrix routes up to 107 GPIOs-including 5 V-tolerant pins-to multiple peripherals without contention.

Core analog integration includes five 12-bit ADCs (0.25 µs conversion, up to 42 channels), seven 12-bit DACs (3 buffered external at 1 MSPS), six rail-to-rail op-amps configurable as programmable gain amplifiers (PGAs), and seven ultra-fast comparators-all sharing common voltage reference buffer (VREFBUF) outputs (2.048 V / 2.5 V / 2.9 V).

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40 °C to +85 °C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32G473RCT6, the G474RCT6 adds essential HRTIM and FDCAN FD for digital power and industrial networking; versus STM32H743VIT6, it trades peak CPU speed for superior analog integration and deterministic sub-nanosecond timing-critical for power electronics control loops.

Availability

STM32G474RCT6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, USB-C PD adapters, and programmable logic controllers requiring stable component supply and long-term manufacturing continuity.

Supply support for STM32G474RCT6 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-performance, analog-rich embedded applications-specifically digital power conversion, motor control, and industrial automation-where precision timing, math acceleration, and integrated analog peripherals reduce system complexity.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32G474RCT6 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS). This is achieved using the Adaptive Real-Time Accelerator (ART) to eliminate Flash wait states, and includes a single-precision FPU for floating-point intensive tasks like motor control algorithms and digital signal processing.

Does this MCU support hardware-accelerated mathematical functions?

Yes-it integrates two dedicated hardware accelerators: the CORDIC unit for efficient computation of trigonometric, hyperbolic, and logarithmic functions, and the Filter Mathematical Accelerator (FMAC) for real-time FIR/IIR filtering. Both operate independently of the CPU, reducing interrupt latency and freeing core cycles for application logic.

What low-power modes are available and what is the lowest achievable current draw?

The device supports Sleep, Stop, Standby, and Shutdown modes. In Standby mode with RTC and backup registers active, typical current consumption is 1.4 µA at 25 °C. This enables battery-backed operation for extended periods in remote sensors or energy-harvesting applications without compromising timekeeping integrity.

Is the LQFP64 package of STM32G474RCT6 pin-compatible with other members of the G4 series?

No-pin compatibility is limited to identical part numbers within the same package variant (e.g., STM32G474RCT6 and STM32G473RCT6 share the same LQFP64 footprint and pinout). Cross-series compatibility (e.g., G4 vs. G0 or H7) is not guaranteed due to differing peripheral mappings, power domains, and alternate function assignments.