Parts Microcontrollers ARM Cortex-M4 STM32 Family STM32F446 STM32F446RET6

STM32F446RET6

Name: STM32F446RET6
Brand: STMicroelectronics

STMicroelectronics

ARM® Cortex®-M4 STM32F4 Microcontroller IC 32-Bit 180MHz 512KB (512K x 8) FLASH 64-LQFP (10x10)

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Overview

The STM32F446RET6 is a high-performance ARM Cortex-M4 microcontroller operating at speeds up to 180MHz with a dedicated Floating Point Unit (FPU). It features 512KB of Flash memory and 128KB of RAM, providing a balanced profile for real-time signal processing and advanced peripheral control. This specific variant includes specialized interfaces like Dual Mode QuadSPI and SPDIF-Rx, making it uniquely suited for complex audio and data-intensive applications.

Why Choose This Part

The inclusion of the ART Accelerator allows zero-wait-state execution from Flash at full clock speed, maximizing the performance of the 180MHz Cortex-M4 core. Its extensive connectivity suite, including USB OTG and dual CAN, combined with 50 I/O pins in a compact LQFP64 package, offers high integration density for space-constrained designs.

Applications

Digital Audio Processing

Utilizes the integrated SPDIF-Rx, multiple SAI (Serial Audio Interfaces), and I2S support for high-fidelity audio mixing and streaming.

Advanced Motor Control

Leverages 180MHz clock speeds and PWM timers to manage multi-axis brushless DC (BLDC) motor systems.

Industrial Gateways

Acts as a communications hub using dual CANbus, USB OTG, and the Flexible External Memory Controller (FMC) for large data buffers.

High-Speed Data Logging

Uses the 180MHz CPU and QuadSPI interface for rapid execution and storage to external serial NOR Flash.

Key Specifications

Speed 180MHz

RAM Size 128K x 8

Core Size 32-Bit

Peripherals Brown-out Detect/Reset, DMA, I2S, LVD, POR, PWM, WDT

Connectivity CANbus, EBI/EMI, I2C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB, USB OTG

Mounting Type Surface Mount

Number of I/O 50

Core Processor ARM Cortex-M4

Package / Case 64-LQFP

Data Converters A/D 16x12b; D/A 2x12b

Oscillator Type Internal

Program Memory Size 512KB (512K x 8)

Program Memory Type FLASH

Operating Temperature -40degC ~ 85degC (TA)

Supplier Device Package 64-LQFP (10x10)

Voltage - Supply (Vcc/Vdd) 1.7V ~ 3.6V

Getting Started

Begin development with the NUCLEO-F446RE evaluation board, which includes an integrated ST-LINK debugger and Arduino Uno V3 headers. Engineers typically use the STM32CubeIDE for code generation and HAL-based development, or ARM Keil MDK for performance-critical firmware. Ensure the power supply is stable between 1.7V and 3.6V to maintain 180MHz operation.