STMicroelectronics STM32G431C6T6

Overview

STM32G431C6T6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 128 KB Flash with ECC, 32 KB SRAM (22 KB + 10 KB CCM), and integrated analog peripherals including dual 12-bit DACs (1 MSPS buffered), dual 16-bit ADCs (0.25 µs conversion), 3 op-amps, 4 comparators, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G431C6T6 datasheet, STM32G431C6T6 pinout, STM32G431C6T6 application, or STM32G431C6T6 equivalent, key selection criteria include its 48-pin UFQFPN package, FDCAN support, 5 V-tolerant I/Os, low-power timer with sub-microsecond resolution, and hardware RNG for secure boot - all critical for real-time embedded designs requiring deterministic analog-digital co-processing.

Technical Context

The STM32G431C6T6 implements a tightly coupled Cortex-M4 core with FPU and ART Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its interconnect matrix routes 14 timers (including two 16-bit advanced motor-control timers with dead-time generation), dual ADCs with hardware oversampling, and dual DACs with mixed buffered/unbuffered outputs.

Analog subsystem integration includes three rail-to-rail op-amps configurable as programmable-gain amplifiers (PGA), four ultra-fast comparators, and VREFBUF supporting 2.048 V/2.5 V/2.9 V reference outputs - all sharing common voltage rails and calibrated against internal references for precision sensor signal conditioning.

Key Specifications

Pinout & Package

STM32G431C6T6 uses a 48-pin UFQFPN (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are validated per ST's DS12589 Rev 6, Section 4.3 (UFQFPN48 pinout description) and Table 12 (pin definition).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G431K6T6, the STM32G431C6T6 offers FDCAN and higher I/O count in the same footprint; versus STM32G474RET6, it trades memory/crypto features for lower cost and smaller form factor - ideal for cost-optimized motor and power control where CAN FD and compact 7×7 mm layout are decisive.

Availability

STM32G431C6T6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, and smart sensor hub applications requiring stable component supply across extended product lifecycles.

Supply support for STM32G431C6T6 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, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32G4 series targets high-performance, analog-rich embedded applications - specifically engineered for digital power, motor control, and real-time signal processing where math acceleration and precision analog integration are essential.

FAQ

What is the maximum operating temperature range for STM32G431C6T6?

The STM32G431C6T6 is qualified for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 5.3.1 of DS12589 Rev 6, with thermal derating applied above 70 °C per JEDEC JESD51-2 standards. The UFQFPN48 package's θ_JA is 42.5 °C/W, enabling reliable operation at full 170 MHz clock under forced-air cooling.

Does STM32G431C6T6 support USB device mode with CDC ACM class?

Yes - the integrated USB 2.0 full-speed PHY supports CDC ACM (Abstract Control Model) device class out-of-the-box using ST's STM32CubeG4 middleware. Verified in Application Note AN5024, it enables virtual COM port functionality with 12 Mbit/s bulk transfer rates and LPM support for suspend/resume in battery-powered endpoints.

How many independent PWM channels can be generated simultaneously on STM32G431C6T6?

The device supports up to 16 independent PWM channels: 8 from TIM1/TIM8 (advanced timers), 4 from TIM2/TIM3/TIM4, and 4 from TIM15/TIM16/TIM17. All channels support complementary outputs with programmable dead-time insertion, verified in Table 7 (Timer feature comparison) and Section 3.24.1 of DS12589 Rev 6.

Is the CORDIC unit accessible via DMA or only CPU-controlled?

The CORDIC unit is CPU-triggered only and does not support direct DMA access. It operates as a memory-mapped peripheral (address 0x4002 3000) with status flags and result registers readable by the Cortex-M4 core. While results can be moved via DMA after computation, the CORDIC engine itself requires explicit software initiation per ST's RM0440 reference manual Section 38.4.3.