STM32F446RET6 Microcontroller: ARM Cortex-M4 MCU

The STM32F446RET6 comes with an Arm Cortex-M4 32-bit RISC core whose operating frequency is 180 MHz and is used for providing high-performance features. The Cortex-M4 core has certain features, such as FPU, that are compatible with Arm single precision data processing data and instructions. It also applies a DSP instruction complete set and MPU, or memory protection unit, that is best for securing any circuit's features and instructions.

This controller also has high-speed memory configuration such as 512 KB flash memory, 128 KB SRAM, and 4 KB SRAM used as backup memory. It also has different input/output pins and devices that are configured with 2 APB buses and two AHB buses with a multi-AHB bus matrix and 32-bit

The controller also comes with 2 digital-to-analog converter modules, with 3 twelve-bit ADC and RTC modules. 12, 16-bit timers have two PWM timers for controlling the functions of motors.

The controller also has different standards as well as the latest used communications protocols.

● There are 4 I2C communication protocols configured on board with 4 SPI and 3 I2S that are used for providing noiseless audio, and I2C gets a clock signal through the inner audio PLL.

● There are 4 USARTs with two UARTs configured, and for using the complete power range, there are USB OTG full speed and USB OTG high speed configured.

● It also has 2 CANs and 2 SAIs for getting audio errorless, and SAIs get clock signals through an inner audio PLL.

● It also has some advanced features such as SDIO, and FMC interfacing with CMOS sensors for camera interfacing.

Features

● This module 8080/6800 modes LCD parallel configured interfacing.

● It has reset, clock, and supply control features. (1.7V to 3.6V)

● It has three power modes: sleep, stop, and standby modes.

● It has 17 timers, 1x SysTick timer, twelve 16-bit and two 32-bit timers of 180 MHz frequency with 2x watchdog.

● It uses about 20 communication interfacing systems with 114 I/O ports with interrupt capability.

● It has 128KB SRAM and a dual-mode QuadSPI interface with a 64-pin LQFP package.

● Temperature range is -40 to 85°C.

Some more technical features of the STM32F446RET6 are.

STM32F446RET6 Pins

STM32F446RET6 CAD Mode

STM32F446RET6 Components

Arm Cortex-M4 CPU

● The STM32F446RET6 has an Arm Cortex-M4 CPU that can work at 180 MHz speed. In this process, FPU helps to solve computations easily and accurately. There is DSP to help handle audio processing easily.

Memory

● There is 512 KB flash memory configured on board with 128 KB SRAM that helps store your instructions and data sets. Persistent storage is provided by flash memory, and for easy and fast access, SRAM is used. It also has 4KB back SRAM that stores data when there is no power.

External Memory Controller

● External memory control is used on board for providing a 16-bit data bus. That helps to provide some memory space for SRAM, PSRAM, SDRAM, etc.

Dual-Mode Quad SPI Interface

● This component helps to provide high-speed and easy data transfer and helps when you are working on bulk data processing.

LCD Interface

● On the controller, there is an LCD parallel interface with combinations of 8080/6800 modes. It is helpful for the connection of LCD and helps to see working in video form.

DMA Controller

● There is effective data transfer without the use of a constant CPU through the use of a 16-stream DMA controller with a combination of FIFO. That is helpful for high-speed features where data is transferred in an easy and fast way.

Timer

● The STM32F446RET6 has 17 timers that control different functions such as input capture, output compare, PWM, etc. There is a monitoring system controlled through 2 watchdog timers, and for simple timekeeping, a SysTick timer is used.

Debugging Interfaces

● The components used for debugging are Serial Wire Debug and JTAG interfacing which are used for troubleshooting and different program testing. For detailed analysis, there is a Cortex-M4 Trace Macrocell configured that is best for solving complex systems.

Clock, Reset, and Supply Management

● These components are used for a simple system for device stability. There is smooth and simple working provided through the use of 1.7 V to 3.6 V application supply, POR, PVD, Power-Down Reset, and Brown-Out Reset. In this, some other features are used for accurate and stable timing, such as a 4 to 26 MHz crystal oscillator, a 32 kHz oscillator for RTC, and a 16 MHz internal RC oscillator.

Low Power Modes

● Three modes of power Sleep, Stop, and Standby help to save power. These modes are best for battery-controlled devices and features where less power use is important.

ADC & DAC Converters

● The 12-bit 3 ADC and 12-bit 2 DACs are configured on the controller. That is used for analog-to-digital (ADC) conversion and digital-to-analog converters. This component is used for audio processing, sensor reading, etc.

STM32F446RET6 vs. Other Microcontrollers

Difference between STM32F446RET6 & STM32F446RET6TR

Difference between STM32F101ZGT6 & STM32F446RET6