STMicroelectronics STM32G473VCH6

Overview

STM32G473VCH6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, 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 DAC channels, six operational amplifiers, and three FDCAN controllers. It targets motor control, digital power conversion, and industrial sensing applications requiring real-time signal processing and high-precision analog integration.

For engineers reviewing the STM32G473VCH6 datasheet, STM32G473VCH6 pinout, STM32G473VCH6 application, or STM32G473VCH6 equivalent, key selection criteria include its 170 MHz Cortex-M4+FPU core, dual-bank Flash with read-while-write capability, CORDIC/FMAC hardware accelerators for trigonometric and filtering math, 5 V-tolerant GPIOs, and UCPD interface for USB Type-C™ power delivery implementation.

Technical Context

The STM32G473VCH6 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash memory, paired with a Memory Protection Unit (MPU) and DSP instruction set for deterministic real-time control. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.

It integrates three independent FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a USB 2.0 full-speed interface with LPM/BCD support, and a dedicated UCPD controller for USB Type-C™ power negotiation - all synchronized via a flexible clock tree with four oscillators (4–48 MHz HSE, 32 kHz LSE, 16 MHz/32 kHz RC).

Key Specifications

Pinout & Package

STM32G473VCH6 is housed in a 100-pin LQFP package (14 × 14 mm, pitch 0.5 mm), designated by package code "1L" per ST's ordering nomenclature. This variant provides full peripheral routing including all three FDCAN interfaces, dual ADC banks, and complete UCPD functionality.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G431KB6, the STM32G473VCH6 delivers 4× more Flash, hardware math acceleration, and full USB-C PD capability - essential for complex closed-loop systems. Versus STM32H743VIT6, it offers superior analog integration and lower power consumption in sensor/motor edge nodes, trading raw compute for precision mixed-signal performance.

Availability

STM32G473VCH6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, USB Type-C™ PD endpoints, and high-precision sensor hubs requiring stable component supply across multi-year production cycles.

Supply support for STM32G473VCH6 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, MEMS sensors, and automotive-grade components.

The STM32G4 series is engineered for real-time industrial control and digital power applications, combining high-speed analog front-ends with deterministic Cortex-M4 execution and hardware math acceleration to replace discrete analog + DSP solutions.

FAQ

What is the maximum operating frequency and corresponding performance metric?

The STM32G473VCH6 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state Flash execution. Its performance is rated at 213 DMIPS (Dhrystone 2.1), verified under conditions of 1.71–3.6 V supply and ambient temperature ranging from –40 °C to +85 °C. The MPU and DSP instruction set further enhance deterministic real-time behavior in safety-critical loops.

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

Yes - the STM32G473VCH6 integrates a dedicated USB Type-C™ and Power Delivery (UCPD) controller compliant with USB PD 3.0. It includes dual CC line interfaces (UCPD1_CC1/CC2), VBUS monitoring, and a hardware policy engine that handles PD messaging, role negotiation, and fault management without CPU intervention, reducing firmware complexity and latency.

How many analog-to-digital converters does the STM32G473VCH6 have, and what are their key capabilities?

The device integrates five independent 12-bit ADCs with up to 42 total channels, each capable of 0.25 µs conversion time (4 MSPS). They support hardware oversampling up to 16-bit resolution, simultaneous sampling across multiple ADCs, and flexible trigger sources including timers and external events - enabling precise current/voltage measurement in motor and power applications.

What packaging and pin count does the 'VCH6' suffix indicate?

The 'VCH6' suffix denotes the LQFP100 package: 100-pin Low-Profile Quad Flat Package (14 × 14 mm, 0.5 mm pitch), specified in ST's ordering matrix as package code '1L'. This variant provides full access to all peripherals - including all three FDCAN controllers, dual ADC banks, UCPD, and complete timer/communication resources - making it the highest I/O count option in the G473xE family.