STMicroelectronics STM32G473CCU6

Overview

STM32G473CCU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash, 170 MHz max clock, 128 KB SRAM, and integrated CORDIC/FMAC math accelerators-designed for real-time motor control, digital power conversion, and industrial sensing applications.

For engineers reviewing the STM32G473CCU6 datasheet, STM32G473CCU6 pinout, STM32G473CCU6 application, or STM32G473CCU6 equivalent, key selection criteria include its 7-channel 12-bit DAC (3 buffered @ 1 MSPS), 5×12-bit ADCs (42-channel, 0.25 µs conversion), FDCAN support, and UFQFPN48 package with 5 V-tolerant I/Os.

Technical Context

The STM32G473CCU6 implements an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz, paired with a Memory Protection Unit (MPU) and dual-bank Flash supporting read-while-write and PCROP security. Its analog subsystem integrates six operational amplifiers (configurable as PGAs), seven rail-to-rail comparators, and a programmable voltage reference buffer (2.048 V / 2.5 V / 2.9 V).

Timing architecture includes three advanced motor-control timers (TIM1/TIM8/TIM20) with dead-time generation and emergency stop, plus flexible clock sources: 4–48 MHz external crystal, 32 kHz RTC oscillator with calibration, and internal RC oscillators (16 MHz ±1%, 32 kHz ±5%). The interconnect matrix enables concurrent peripheral access without bus contention.

Key Specifications

Pinout & Package

STM32G473CCU6 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package measuring 7 mm × 7 mm with 0.5 mm pitch and exposed thermal pad. Pin functions are validated per STMicroelectronics DS12712 Rev 5, Section 4.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G431CBU6, the STM32G473CCU6 delivers 4× more Flash, math accelerators, and richer analog resources - essential for complex control algorithms. Versus STM32G474RET6, it trades crypto/audio features for smaller size and lower cost while retaining identical core performance and analog capability.

Availability

STM32G473CCU6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart sensor hubs, and portable medical diagnostics requiring stable component supply and long-term manufacturability.

Supply support for STM32G473CCU6 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, resource-rich applications in digital power, motor control, and industrial automation - combining Arm Cortex-M4 compute density with ST's proprietary analog and mathematical acceleration IP.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32G473CCU6?

The STM32G473CCU6 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state Flash execution. Its performance is rated at 213 DMIPS (Dhrystone MIPS), measured per EEMBC CoreMark methodology. This frequency is sustained across the full industrial temperature range (–40 °C to +85 °C) under specified VDD conditions (1.71–3.6 V).

Does the STM32G473CCU6 support hardware-based cryptographic operations?

No, the STM32G473CCU6 does not include dedicated cryptographic accelerators such as AES, SHA, or PKA engines. It relies on software libraries for encryption tasks. For hardware crypto, consider the STM32G474RET6 or STM32G484RET6, which integrate AES-256 and HASH processors.

How many analog-to-digital converter (ADC) instances does the STM32G473CCU6 integrate, and what is their maximum sampling rate?

The STM32G473CCU6 integrates five independent 12-bit ADCs, supporting up to 42 input channels via multiplexing. Each ADC achieves a maximum conversion time of 0.25 µs (4 MSPS), with hardware oversampling enabling effective resolutions up to 16 bits. All ADCs share common trigger sources and can be synchronized for simultaneous sampling.

Is the UFQFPN48 package of the STM32G473CCU6 RoHS-compliant and lead-free?

Yes, the STM32G473CCU6 in UFQFPN48 packaging is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3. The device is qualified for reflow soldering per IPC/JEDEC J-STD-020, with peak temperature tolerance up to 260 °C.