Overview
The STM32F446RET7TR is a high-performance microcontroller from STMicroelectronics, part of the STM32F446xC/E family. It is based on the Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 180 MHz. This core features a floating point unit (FPU) single precision, supporting all Arm® single-precision data-processing instructions and data types, as well as a full set of DSP instructions and a memory protection unit (MPU) for enhanced application security.
The device incorporates 512 Kbytes of Flash memory, 128 Kbytes of SRAM, and up to 4 Kbytes of backup SRAM. It also includes a flexible external memory controller and a dual mode QuadSPI interface, making it highly versatile for various applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | Arm® Cortex®-M4 32-bit RISC core |
| Core Frequency | Up to 180 MHz |
| Flash Memory | 512 Kbytes |
| SRAM | 128 Kbytes + 4 Kbytes backup SRAM |
| External Memory Controller | Flexible, up to 16-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash |
| QuadSPI Interface | Dual mode |
| Supply Voltage | 1.7 V to 3.6 V |
| Operating Temperature | -40°C to 105°C |
| ADCs | 3 × 12-bit, 2.4 MSPS, up to 7.2 MSPS in triple interleaved mode |
| DACs | 2 × 12-bit |
| Timers | Up to 17 timers: 2x watchdog, 1x SysTick timer, 12x 16-bit, 2x 32-bit |
| Communication Interfaces | Up to 20 interfaces including CAN, I2C, SPI, USART, USB OTG |
| I/O Ports | Up to 114 I/O ports with interrupt capability |
| Package | 64-LQFP (10x10x1.4 mm) |
Key Features
- High-performance Arm® Cortex®-M4 32-bit RISC core with FPU, DSP instructions, and MPU.
- 512 Kbytes of Flash memory and 128 Kbytes of SRAM, with optional 4 Kbytes of backup SRAM.
- Flexible external memory controller supporting various memory types.
- Dual mode QuadSPI interface for high-speed memory access.
- Three 12-bit ADCs and two 12-bit DACs for advanced analog capabilities.
- Up to 17 timers, including two 32-bit timers and two PWM timers for motor control.
- Extensive range of communication interfaces: CAN, I2C, SPI, USART, USB OTG, etc.
- Low power modes: Sleep, Stop, and Standby, with VBAT supply for RTC.
- Advanced debug features: SWD and JTAG interfaces, Cortex®-M4 Trace Macrocell™.
Applications
The STM32F446RET7TR is suitable for a wide range of applications due to its high performance, rich connectivity, and energy efficiency. These include:
- Industrial automation and control systems.
- Scientific and medical devices requiring precise analog and digital processing.
- Internet-of-Things (IoT) applications that demand high performance and low power consumption.
- Advanced motor control and power management systems.
- Audio and multimedia applications leveraging the device's audio interfaces and DSP capabilities.
Q & A
- What is the core processor of the STM32F446RET7TR?
The core processor is the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32F446RET7TR?
The maximum operating frequency is up to 180 MHz.
- How much Flash memory and SRAM does the STM32F446RET7TR have?
The device has 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- What types of external memory does the STM32F446RET7TR support?
The device supports SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memories.
- What are the key analog features of the STM32F446RET7TR?
The device features three 12-bit ADCs and two 12-bit DACs.
- How many communication interfaces does the STM32F446RET7TR have?
The device has up to 20 communication interfaces, including CAN, I2C, SPI, USART, and USB OTG.
- What are the low power modes available on the STM32F446RET7TR?
The device supports Sleep, Stop, and Standby modes, with VBAT supply for RTC.
- What is the operating temperature range of the STM32F446RET7TR?
The operating temperature range is from -40°C to 105°C.
- What package type is the STM32F446RET7TR available in?
The device is available in a 64-LQFP (10x10x1.4 mm) package.
- Is the STM32F446RET7TR RoHS compliant?
Yes, the device is RoHS compliant.
- What debug features are available on the STM32F446RET7TR?
The device features SWD and JTAG interfaces, as well as the Cortex®-M4 Trace Macrocell™.
