STMicroelectronics STM32G473RCT6

Overview

STM32G473RCT6 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, 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 rail-to-rail op-amps, and three FDCAN controllers - deployed in industrial motor control systems requiring real-time signal processing and precision analog feedback.

For engineers reviewing the STM32G473RCT6 datasheet, STM32G473RCT6 pinout, STM32G473RCT6 application, or STM32G473RCT6 equivalent, key selection considerations include its CORDIC/FMAC hardware accelerators for trigonometric and filtering math, dual-bank Flash with read-while-write capability, 5 V-tolerant I/Os, UCPD interface for USB Type-C™ power delivery, and support for advanced motor control timers with dead-time generation and emergency stop.

Technical Context

The STM32G473RCT6 implements an Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix routes 16 DMA channels across multiple AHB/APB buses, supporting concurrent high-bandwidth transfers for ADC sampling, DAC streaming, and communication interfaces.

It integrates dedicated mathematical hardware: CORDIC for sin/cos/tan/atan/range reduction and FMAC for FIR/IIR filter acceleration - both accessible via dedicated peripheral registers and tightly coupled to the CPU pipeline. Analog subsystems include independent voltage reference buffer (VREFBUF) with selectable 2.048 V/2.5 V/2.9 V outputs and op-amps configurable in programmable-gain amplifier (PGA) mode with external feedback.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 64 pins; 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 STM32G474RET6, the STM32G473RCT6 trades crypto acceleration for integrated UCPD - making it uniquely suitable for USB-C PD adapter designs. Against STM32H743VIT6, it delivers optimized analog/motor control features in a smaller, lower-cost LQFP64 package with lower active power, avoiding unnecessary complexity.

Availability

STM32G473RCT6 is available at Aetrix Electronics and suitable for industrial motor drives, smart power supplies, USB-C PD adapters, and programmable logic controller (PLC) modules requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32G473RCT6 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 management ICs, sensors, and automotive semiconductors since 1987.

The STM32G4 series targets high-efficiency digital power conversion and real-time motor control applications, integrating math accelerators, rich analog front-ends, and robust communication interfaces into a single chip to replace multi-IC solutions.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32G473RCT6?

The STM32G473RCT6 operates at up to 170 MHz with 213 DMIPS (Dhrystone MIPS) performance, achieved using the ART Accelerator for zero-wait-state Flash execution. Its Cortex-M4 core includes a floating-point unit and DSP extensions, enabling efficient execution of control loops, filtering, and signal processing tasks without external co-processors.

Does the STM32G473RCT6 support USB Type-C™ Power Delivery, and how is it implemented?

Yes - the STM32G473RCT6 integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It uses two dedicated CC pins (UCPD1_CC1/CC2) for cable orientation detection, VCONN power switching, and BMC-encoded PD message exchange, eliminating the need for an external PD controller IC in compact adapter designs.

How does the STM32G473RCT6 handle analog signal acquisition and generation in motor control applications?

It provides five synchronized 12-bit ADCs (0.25 µs conversion) with up to 42 channels, seven 12-bit DACs (including three buffered external outputs), six rail-to-rail op-amps usable in PGA mode, and an internal voltage reference buffer (VREFBUF) with 2.048 V/2.5 V/2.9 V outputs - enabling complete analog front-end functionality for current sensing, position feedback, and PWM modulation without external components.

What packaging and environmental specifications apply to the STM32G473RCT6?

The STM32G473RCT6 is offered in LQFP64 (10 × 10 mm, 0.5 mm pitch) package, rated for industrial temperature range (–40 °C to +85 °C), and complies with RoHS Directive 2011/65/EU. It features 107 I/Os with multiple 5 V-tolerant pins, and supports standard reflow soldering profiles per JEDEC J-STD-020.