STMicroelectronics STM32G473CCU3

Overview

STM32G473CCU3 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 512 KB Flash, 170 MHz max clock, 128 KB SRAM, and integrated CORDIC/FMAC math accelerators. It delivers 213 DMIPS and supports rich analog peripherals including five 12-bit ADCs (up to 42 channels), seven 12-bit DACs, six rail-to-rail op-amps, and three FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G473CCU3 datasheet, STM32G473CCU3 pinout, STM32G473CCU3 application, or STM32G473CCU3 equivalent, key selection criteria include its 48-pin UFQFPN package, 1.71–3.6 V supply range, dual-bank Flash with ECC, CCM-SRAM for deterministic real-time execution, and UCPD interface for USB Type-C™ power delivery implementation.

Technical Context

The STM32G473CCU3 implements a tightly coupled ART Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a multi-AHB interconnect matrix for concurrent peripheral access. Its dual-bank Flash architecture supports read-while-write operations critical for firmware updates without halting real-time tasks.

It integrates three FDCAN controllers compliant with ISO 11898-1:2015 (FD mode up to 5 Mbit/s), a dedicated USB Type-C™/PD controller (UCPD), and hardware math accelerators (CORDIC for trigonometric functions, FMAC for FIR/IIR filtering) - all operating under a unified clock tree with four PLLs and multiple low-power modes (Stop, Standby, Shutdown).

Key Specifications

Pinout & Package

STM32G473CCU3 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package with 0.5 mm pitch, exposed thermal pad, and 7 × 7 mm body size - optimized for thermal dissipation in motor drive and SMPS applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G474RET6, the STM32G473CCU3 offers superior analog integration and USB-C PD capability at lower cost and smaller footprint; versus STM32H743VIT6, it delivers optimal performance-per-watt for real-time motor and power control without unnecessary overhead.

Availability

STM32G473CCU3 is available at Aetrix Electronics and suitable for motor control, digital power conversion, industrial sensing, and USB-C PD source designs requiring stable component supply across production lifecycles.

Supply support for STM32G473CCU3 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-performance, cost-sensitive real-time applications - combining Cortex-M4 efficiency with enhanced analog, math acceleration, and USB-C PD integration for digital power, motor control, and smart sensing.

FAQ

What is the maximum operating frequency and associated DMIPS rating?

The STM32G473CCU3 operates at up to 170 MHz with an ART Accelerator enabled, delivering 213 DMIPS (Dhrystone 2.1). This performance is sustained across the full temperature and voltage range (−40°C to +85°C, 1.71–3.6 V) with zero-wait-state Flash execution, verified per DS12712 Rev 5 Section 3.1.

Does STM32G473CCU3 support USB Type-C™ Power Delivery negotiation?

Yes - it integrates a dedicated USB Type-C™/Power Delivery controller (UCPD) with hardware PD protocol engine, CC line monitoring, and VBUS control logic. The UCPD peripheral handles PD messaging, policy enforcement, and fault recovery without CPU intervention, as documented in Section 3.35 of DS12712 Rev 5.

How many ADC channels are available, and what is their maximum sampling rate?

The device features five independent 12-bit ADCs supporting up to 42 total channels. Each ADC achieves 0.25 µs conversion time (4 MSPS), with hardware oversampling enabling up to 16-bit effective resolution. All ADCs share common calibration and can operate synchronously for multi-channel motor current sampling, per Section 3.18.

What low-power modes are supported, and what is the typical current in Stop mode?

Four low-power modes are supported: Sleep, Stop, Standby, and Shutdown. In Stop mode with RTC running and Flash powered down, typical current consumption is 2.5 µA at 25°C (VDD = 3.3 V), as specified in Table 21 of DS12712 Rev 5. Wakeup latency is ≤5 µs from Stop mode using EXTI or RTC alarm.