STMicroelectronics STM32G473CEU3TR

Overview

STM32G473CEU3TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, delivering 170 MHz/213 DMIPS performance, 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including 5×12-bit ADCs (0.25 µs), 7×DAC channels, 6×op-amps, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G473CEU3TR datasheet, STM32G473CEU3TR pinout, STM32G473CEU3TR application, or STM32G473CEU3TR equivalent, key selection criteria include its UFQFPN48 package, 5 V-tolerant I/Os, triple FDCAN support for automotive-grade communication, hardware-based trigonometric and filtering acceleration, and dual-bank Flash with PCROP for secure firmware updates.

Technical Context

The STM32G473CEU3TR implements an Arm Cortex-M4 core with floating-point unit and DSP extensions, coupled with ST's Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes dual-bank 512 KB Flash with ECC and read-while-write capability, plus 96 KB SRAM with parity on first 32 KB and 32 KB CCM-SRAM with parity on instruction/data bus.

Analog integration centers on five independent 12-bit ADCs (up to 42 channels, 0.25 µs conversion), seven DAC channels (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps configurable as programmable-gain amplifiers, and dedicated hardware accelerators - CORDIC for sin/cos/tan/arctan and FMAC for FIR/IIR filter computation - all synchronized via a multi-AHB interconnect matrix.

Key Specifications

Pinout & Package

STM32G473CEU3TR is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 × 7 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant, rated for 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 STM32G473CEU3TR, the STM32G474RET6 offers greater I/O and memory expansion at the cost of missing UCPD, while the STM32G431KBU3 reduces size and cost by omitting hardware math engines and analog resources - making each suitable for distinct tiers of system complexity and interface requirements.

Availability

STM32G473CEU3TR is available at Aetrix Electronics and suitable for motor control systems, digital power converters, industrial sensor hubs, and smart grid edge nodes requiring stable component supply, long-term manufacturability, and industrial temperature compliance.

Supply support for STM32G473CEU3TR 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, analog-rich embedded applications - combining real-time determinism, mathematical acceleration, and robust mixed-signal integration for digital power, motor control, and industrial automation.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32G473CEU3TR?

The STM32G473CEU3TR operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone MIPS), achieved using the ART Accelerator for zero-wait-state Flash execution. Its Cortex-M4 core includes a single-precision FPU and DSP extensions, enabling efficient floating-point and fixed-point signal processing without software emulation overhead.

Does the STM32G473CEU3TR support hardware-accelerated mathematical functions, and how are they accessed?

Yes - it integrates two dedicated hardware accelerators: CORDIC for trigonometric, hyperbolic, and logarithmic functions (e.g., sin/cos/tan/arctan), and FMAC for filter coefficient computation and accumulation. Both are memory-mapped peripherals accessible via DMA or CPU register writes, with CORDIC completing typical operations in ≤15 cycles and FMAC supporting 32-bit MAC operations at full CPU speed.

What analog peripherals are integrated, and what are their key timing or resolution specifications?

The device integrates five 12-bit ADCs (0.25 µs conversion time, up to 42 channels, hardware oversampling up to 16-bit), seven DAC channels (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps (all terminals accessible, PGA mode supported), seven comparators, and an internal voltage reference buffer (VREFBUF) offering 2.048 V, 2.5 V, or 2.9 V outputs with ±0.5% accuracy.

How does the STM32G473CEU3TR manage power in low-energy applications?

It supports four low-power modes: Sleep (CPU stopped, peripherals active), Stop (1.28 µA typical with RTC running), Standby (0.5 µA with VBAT-powered RTC), and Shutdown (0.15 µA). Wakeup sources include EXTI lines, RTC alarm, comparator output, and USART start bit detection. The VREFBUF can be disabled in low-power modes to further reduce consumption.