STMicroelectronics STM32G473MCT6

Overview

STM32G473MCT6 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 170 MHz max CPU frequency (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, 6 operational amplifiers, and 3 FDCAN controllers - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G473MCT6 datasheet, STM32G473MCT6 pinout, STM32G473MCT6 application, or STM32G473MCT6 equivalent, key selection criteria include its 170 MHz real-time performance with ART Accelerator, integrated analog front-end (6 op-amps, 7 comparators, VREFBUF), FDCAN FD support, and LQFP48 package compatibility for space-constrained embedded control designs.

Technical Context

The STM32G473MCT6 implements an Arm Cortex-M4 core with hardware FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes dual-bank Flash with PCROP and ECC, plus 96 KB SRAM with parity on first 32 KB and 32 KB CCM-SRAM with parity - optimized for deterministic real-time code/data separation.

Analog integration centers on a multi-channel signal chain: five 12-bit ADCs (up to 16-bit oversampled), seven 12-bit DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six rail-to-rail op-amps configurable as PGAs, and three independent voltage reference outputs (2.048 V / 2.5 V / 2.9 V) via VREFBUF - all supporting closed-loop control without external signal conditioning.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with 38 general-purpose I/Os, all mappable to external interrupt vectors; up to 21 pins support 5 V tolerance. Power supply includes dedicated VDD/VDDA (1.71–3.6 V), VSS/VSSA, VBAT (RTC backup), and VREF+ (ADC reference).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G431KBT6, the STM32G473MCT6 delivers 2× Flash/SRAM, hardware math acceleration, and richer analog resources - justifying its use in complex real-time control. Versus STM32G483RET6, it trades I/O count and package size for compact LQFP48 fit - ideal where board space is constrained but full G4 feature set is required.

Availability

STM32G473MCT6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, smart sensor nodes, and USB-C PD adapters requiring stable component supply across long-lifecycle production programs.

Supply support for STM32G473MCT6 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 ICs, sensors, and automotive semiconductors since 1987.

The STM32G4 series targets high-performance, analog-rich embedded control applications - combining Cortex-M4 real-time capability with hardware math acceleration and precision mixed-signal peripherals for digital power, motor control, and industrial IoT edge nodes.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the STM32G473MCT6?

The STM32G473MCT6 operates at up to 170 MHz with an integer performance rating of 213 DMIPS (Dhrystone 2.1). This is achieved using the ART Accelerator for zero-wait-state Flash execution and includes hardware FPU support for single-precision floating-point operations - verified per ST's DS12712 Rev 5 datasheet Section 3.1.

Does the STM32G473MCT6 support true random number generation and cryptographic acceleration?

The STM32G473MCT6 includes a certified True Random Number Generator (RNG) compliant with NIST SP800-90B and ISO/IEC 15408 standards, but lacks dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries for encryption; RNG output is accessible via RCC and RNG peripheral registers per RM0440 Reference Manual Section 45.

How many analog-to-digital converter (ADC) instances does the STM32G473MCT6 integrate, and what is their maximum resolution?

The STM32G473MCT6 integrates five independent 12-bit ADCs with up to 42 input channels, 0.25 µs conversion time, and hardware oversampling support enabling effective resolution up to 16 bits. Each ADC has dedicated DMA request lines and flexible trigger sources - detailed in DS12712 Section 3.18 and Table 2.

Is the STM32G473MCT6 pin-compatible with other members of the STM32G4x3 family in the same LQFP48 package?

Yes - the STM32G473MCT6 shares identical LQFP48 pinout and electrical characteristics with other STM32G473xB/C/E variants in the same package (e.g., STM32G473CBT6, STM32G473RBT6), differing only in Flash size (256 KB/384 KB/512 KB) and SRAM configuration - confirmed in DS12712 Section 4.2 and Table 1.