Overview
The STM32F446RET6 is a high-performance microcontroller from STMicroelectronics, based on the Arm® Cortex®-M4 32-bit RISC core. This microcontroller operates at a frequency of up to 180 MHz and features a floating-point unit (FPU) single precision, supporting all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a memory protection unit (MPU) to enhance application security.
The device is equipped with 512 Kbytes of Flash memory, 128 Kbytes of SRAM, and an additional 4 Kbytes of backup SRAM. It offers a wide range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
Key Specifications
| Specification | Details |
|---|---|
| Core Processor | ARM® Cortex®-M4 32-bit RISC core |
| Frequency | Up to 180 MHz |
| Flash Memory | 512 Kbytes |
| SRAM | 128 Kbytes + 4 Kbytes backup SRAM |
| Supply Voltage | 1.7 V to 3.6 V |
| Number of I/O Lines | 50 |
| ADCs | Three 12-bit ADCs, up to 24 channels |
| DACs | Two 12-bit DACs |
| Timers | Twelve 16-bit timers, two 32-bit timers |
| Communication Interfaces | I2C, SPI, I2S, USART, UART, USB OTG, CAN, SAI, SDIO/MMC |
| Operating Temperature | -40°C to +85°C |
| Package Type | LQFP-64 |
Key Features
- Core and Performance: Arm® Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, and DSP instructions.
- Memory: 512 Kbytes of Flash memory, 128 Kbytes of SRAM, and 4 Kbytes of backup SRAM. Flexible external memory controller supporting SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memories.
- Analog and Digital Peripherals: Three 12-bit ADCs, two 12-bit DACs, a low-power RTC, and various timers including two PWM timers for motor control.
- Communication Interfaces: Multiple I2Cs, SPIs, I2Ss, USARTs, UARTs, USB OTG ports, CAN interfaces, and SAI interfaces.
- Power Management: Sleep, Stop, and Standby modes, VBAT supply for RTC, and backup registers.
- Debug and Development: SWD and JTAG interfaces, Cortex®-M4 Trace Macrocell™.
Applications
- Motor Drive and Control: Suitable for motor control applications due to its advanced timers and PWM capabilities.
- Medical Equipment: Used in medical devices requiring high precision and reliability.
- Industrial Automation: Applicable in PLCs, inverters, circuit breakers, and other industrial control systems.
- Printers and Scanners: Utilized in printing and scanning devices due to its robust communication interfaces.
- Alarm Systems and Video Intercom: Suitable for security and surveillance systems.
- HVAC and Home Audio Appliances: Used in heating, ventilation, and air conditioning systems, as well as home audio appliances.
Q & A
- What is the core processor of the STM32F446RET6?
The core processor is the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32F446RET6?
The maximum operating frequency is up to 180 MHz.
- How much Flash memory and SRAM does the STM32F446RET6 have?
The device has 512 Kbytes of Flash memory and 128 Kbytes of SRAM, plus 4 Kbytes of backup SRAM.
- What are the key analog peripherals of the STM32F446RET6?
The key analog peripherals include three 12-bit ADCs and two 12-bit DACs.
- What communication interfaces are available on the STM32F446RET6?
The device features I2C, SPI, I2S, USART, UART, USB OTG, CAN, SAI, and SDIO/MMC interfaces.
- What are the power management features of the STM32F446RET6?
The device includes Sleep, Stop, and Standby modes, along with VBAT supply for RTC and backup registers.
- What is the operating temperature range of the STM32F446RET6?
The operating temperature range is -40°C to +85°C.
- What package type is the STM32F446RET6 available in?
The device is available in a 64-pin LQFP package.
- Does the STM32F446RET6 support DSP instructions?
Yes, the device supports a full set of DSP instructions.
- What debug interfaces are available on the STM32F446RET6?
The device supports SWD and JTAG interfaces, along with the Cortex®-M4 Trace Macrocell™.
