STMicroelectronics STM32G441CBT6

Overview

STM32G441CBT6 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), CORDIC/FMAC math accelerators, and FDCAN for industrial motor control and power conversion systems.

For engineers reviewing the STM32G441CBT6 datasheet, STM32G441CBT6 pinout, STM32G441CBT6 application, or STM32G441CBT6 equivalent, key selection criteria include its 48-pin LQFP package, 170 MHz real-time performance with ART Accelerator, hardware AES-128/256 encryption, and support for ultra-fast analog signal chains in compact embedded designs.

Technical Context

The STM32G441CBT6 implements a tightly coupled Arm Cortex-M4 core with FPU and Adaptive Real-Time (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-and dual ADCs with hardware oversampling up to 16-bit resolution.

Analog subsystem integration includes three rail-to-rail op-amps (configurable as PGAs), four ultra-fast comparators, and VREFBUF supporting 2.048 V / 2.5 V / 2.9 V reference outputs. The FDCAN controller supports flexible data-rate communication, while UCPD enables USB Type-C™ power delivery negotiation-critical for modern embedded power interfaces.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin count: 48 leads. RoHS-compliant, 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 STM32G431CBT6, the G441CBT6 adds math acceleration and doubles Flash capacity-critical for complex observer-based motor control. Versus STM32F303CBT6, it delivers 2.4× higher clock speed, FDCAN for next-gen automotive diagnostics, and UCPD for USB-C ecosystem integration.

Availability

STM32G441CBT6 is available at Aetrix Electronics and suitable for industrial motor control, smart power converters, programmable logic controllers, and USB-C power delivery systems requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32G441CBT6 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 analog devices for industrial, automotive, and consumer markets.

The STM32G4 series targets high-performance, analog-rich embedded applications-specifically engineered for real-time motor control, digital power conversion, and USB-C PD systems demanding integrated math acceleration and robust security.

FAQ

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

The STM32G441CBT6 achieves 170 MHz maximum CPU frequency using the Adaptive Real-Time (ART) Accelerator, which enables zero-wait-state execution from Flash memory. This eliminates instruction fetch bottlenecks, allowing deterministic real-time performance without external RAM or cache reliance-verified in DS12960 Rev 5 Section 3.2.

Does STM32G441CBT6 support hardware encryption and secure boot?

Yes. It integrates a dedicated AES-128/256 hardware accelerator, True Random Number Generator (TRNG), and proprietary Code Read-Out Protection (PCROP) for secure Flash regions. Boot security is enforced via option bytes and immutable ROM bootloader with signature verification-detailed in Sections 3.4 and 3.24 of the datasheet.

Which analog peripherals are available and what are their key specs?

It features two 16-bit ADCs (0.25 µs conversion, hardware oversampling), four 12-bit DACs (two buffered @ 1 MSPS, two unbuffered @ 15 MSPS), three rail-to-rail op-amps (PGA-capable), four ultra-fast comparators, and VREFBUF with 2.048 V / 2.5 V / 2.9 V outputs-all documented in Sections 3.18–3.22 of DS12960 Rev 5.

What development tools and debug interfaces are supported?

It supports Serial Wire Debug (SWD) and JTAG via SWJ-DP, plus Embedded Trace Macrocell (ETM) for real-time instruction tracing. ST's STM32CubeIDE, STM32CubeMX, and official Nucleo-G441RB board provide full toolchain support-including HAL/LL drivers, middleware, and example projects for motor control and USB-C PD.