STMicroelectronics STM32G431C8T6

Overview

STM32G431C8T6 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), three rail-to-rail op-amps, and four ultra-fast comparators. It targets motor control, digital power conversion, and industrial sensing systems requiring real-time math acceleration via CORDIC and FMAC.

For engineers reviewing the STM32G431C8T6 datasheet, STM32G431C8T6 pinout, STM32G431C8T6 application, or STM32G431C8T6 equivalent, key selection criteria include its LQFP48 package with 38 GPIOs (5 V tolerant), FDCAN support for flexible data-rate automotive/industrial networks, UCPD interface for USB Type-C™ power delivery control, and hardware RNG for secure boot and encryption key generation.

Technical Context

The STM32G431C8T6 implements a dual-bus AHB interconnect matrix enabling concurrent access to Flash, SRAM, and peripherals, supporting deterministic real-time execution. Its ART Accelerator eliminates Flash wait states at 170 MHz, while the CORDIC engine accelerates sine/cosine/tangent and magnitude/phase calculations without software overhead.

It integrates two advanced motor-control timers (TIM1/TIM8) with 8-channel PWM, programmable dead-time insertion, and emergency stop inputs-enabling three-phase inverter control. The UCPD peripheral provides native USB Power Delivery negotiation and Type-C port management without external ICs.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; 48-pin layout optimized for compact motor control and power supply designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G474RET6, the STM32G431C8T6 offers better cost-performance balance for compact motor drives and USB-C PD adapters; versus STM32F303K8T6, it delivers 2.4× higher compute throughput, hardware math acceleration, and native USB-C power delivery control - critical for next-generation digital power and industrial edge nodes.

Availability

STM32G431C8T6 is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor nodes, and USB-C PD adapter designs requiring stable component supply and long-term manufacturability.

Supply support for STM32G431C8T6 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-efficiency digital power conversion and real-time motor control applications, integrating math accelerators, rich analog front-ends, and USB-C PD controllers to replace multi-chip solutions with single-chip intelligence.

FAQ

What is the maximum operating temperature range for STM32G431C8T6?

The STM32G431C8T6 is qualified for industrial temperature range: –40 °C to +85 °C ambient operating temperature. This is confirmed in Section 5.3.1 of DS12589 Rev 6, with thermal derating applied above 70 °C per package-specific junction-to-ambient thermal resistance (θ_JA = 40.3 °C/W for LQFP48).

Does STM32G431C8T6 support hardware encryption acceleration?

No - the STM32G431C8T6 does not integrate a dedicated cryptographic accelerator (e.g., AES, SHA, PKA). It relies on software libraries for encryption; however, its true random number generator (RNG) and memory protection unit (MPU) provide foundational security for key generation and privilege separation in secure boot implementations.

Can the CORDIC unit perform division or square root operations?

Yes - the CORDIC engine supports vector magnitude (sqrt(x²+y²)), phase (atan2(y,x)), and division (via reciprocal computation using iterative convergence). These operations execute in fixed cycle counts (e.g., 16 cycles for 16-bit magnitude), documented in Section 3.8 of DS12589 Rev 6, and are accessible via CMSIS-DSP intrinsics.

Is the UCPD peripheral capable of acting as a USB-C power source (source role)?

No - the UCPD peripheral in STM32G431C8T6 operates only in sink or dual-role (DRP) mode with fixed PDOs; it cannot dynamically negotiate as a power source due to lack of integrated VBUS discharge path and source-capable power switches. It supports sink/DRP roles per USB PD 3.0 specification, verified in Section 3.35 of DS12589 Rev 6.