STMicroelectronics STM32G473PEI6

Overview

STM32G473PEI6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 512 KB Flash (ECC-enabled), 128 KB SRAM (96 KB + 32 KB CCM), and operating frequency up to 170 MHz (213 DMIPS). It integrates dual-bank read-while-write Flash, CORDIC/FMAC math accelerators, 5×12-bit ADCs (42-channel, 0.25 µs), 7×12-bit DACs, and 3×FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensor fusion systems.

For engineers reviewing the STM32G473PEI6 datasheet, STM32G473PEI6 pinout, STM32G473PEI6 application, or STM32G473PEI6 equivalent, key selection criteria include its 170 MHz real-time performance with ART Accelerator, hardware-based trigonometric and filtering acceleration, 5 V-tolerant GPIOs, integrated USB Type-C™/PD controller (UCPD), and support for advanced motor control timing (TIM1/TIM8/TIM20 with dead-time and emergency stop).

Technical Context

The STM32G473PEI6 implements an Arm Cortex-M4 core with floating-point unit and Memory Protection Unit (MPU), coupled with ST's Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix supports concurrent access to Flash, SRAM, and peripherals without bus contention.

It features three independent FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a dedicated UCPD interface for USB Type-C™ power delivery negotiation, and dual 16-bit advanced timers (TIM1/TIM8) with 8-channel PWM, programmable dead time, and emergency stop input - all synchronized via shared trigger routing.

Key Specifications

Pinout & Package

LQFP80 (12 × 12 mm, 0.5 mm pitch) package with 80 pins; RoHS-compliant, industrial temperature range (–40 °C to +85 °C); pin-compatible with other STM32G473xE variants in same package.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M4 microcontroller applications.

Compared with STM32G473PEI6, the STM32G474RET6 trades UCPD for cryptographic acceleration and smaller footprint, while the STM32H743VIT6 offers higher memory and dual-core throughput at the expense of specialized math acceleration and USB-C PD integration - making STM32G473PEI6 optimal for cost-constrained, latency-critical motor and power conversion designs requiring native USB-C negotiation.

Availability

STM32G473PEI6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, smart sensor hubs, and USB-C PD source port designs requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade packaging.

Supply support for STM32G473PEI6 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 with vertical manufacturing and broad industrial certification coverage.

The STM32G4 series targets high-efficiency digital power, motor control, and analog-intensive embedded applications - combining real-time performance, math acceleration, and robust peripheral integration in a single-chip solution.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32G473PEI6 achieves 170 MHz maximum CPU frequency using ST's Adaptive Real-Time (ART) Accelerator, which implements a 64-bit prefetch buffer and branch prediction to eliminate Flash wait states. This enables deterministic 213 DMIPS performance with full instruction and data caching enabled, verified across –40 °C to +85 °C under 1.71–3.6 V supply conditions per DS12712 Rev 5 Section 3.2.

Does STM32G473PEI6 support USB Type-C™ Power Delivery negotiation?

Yes - it integrates a dedicated USB Type-C™/Power Delivery controller (UCPD) compliant with USB PD 3.0 specification. The UCPD block handles CC line monitoring, VCONN power switching, BMC encoding/decoding, and policy engine execution without external components, as confirmed in Section 3.35 of DS12712 Rev 5 and UM2277 reference manual.

How many analog-to-digital converters does it include and what are their key capabilities?

The STM32G473PEI6 includes five independent 12-bit ADCs with up to 42 total channels, 0.25 µs conversion time, hardware oversampling up to 16-bit effective resolution, and 0–3.6 V input range. Each ADC supports injected/conversion sequences, analog watchdogs, and DMA-triggered data transfer - detailed in Section 3.18 and Table 2 of DS12712 Rev 5.

Is there hardware support for motor control timing functions like dead-time insertion and emergency stop?

Yes - TIM1, TIM8, and TIM20 are advanced motor control timers featuring complementary PWM outputs with programmable dead-time insertion (down to 1 ns resolution), automatic fault state transition, and dedicated emergency stop (BKIN) inputs that force outputs to safe states within one clock cycle. These capabilities are validated in Section 3.24.1 and Figure 127 of DS12712 Rev 5.