Overview
The STM32F446ZEJ7TR is a high-performance microcontroller from STMicroelectronics, part of the STM32F446xC/E series. It is based on the Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 180 MHz. The Cortex-M4 core includes a floating-point unit (FPU) and a full set of DSP instructions, along with a memory protection unit (MPU) to enhance application security.
This microcontroller features 512 Kbytes of Flash memory, 128 Kbytes of SRAM, and up to 4 Kbytes of backup SRAM. It also includes an extensive range of enhanced I/Os and peripherals connected to multiple buses, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator), frequency up to 180 MHz, MPU |
| Flash Memory | 512 Kbytes |
| SRAM | 128 Kbytes |
| Backup SRAM | Up to 4 Kbytes |
| ADCs | 3 × 12-bit, 2.4 MSPS, up to 24 channels and 7.2 MSPS in triple interleaved mode |
| DACs | 2 × 12-bit |
| Timers | Up to 17 timers: 2x watchdog, 1x SysTick timer, and up to twelve 16-bit and two 32-bit timers |
| Communication Interfaces | Up to 4 × I2C, up to four USARTs and two UARTs, up to four SPIs, 2 × SAI, 2 × CAN (2.0B Active), USB 2.0 full-speed/device/host/OTG controller |
| Operating Voltage | 1.7 V to 3.6 V |
| Operating Temperature | -40°C to 85°C (Industrial grade) |
| Package | UFBGA 144 10x10x0.6 P 0.8 mm |
Key Features
- Core and Performance: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator), and DSP instructions, operating at up to 180 MHz.
- Memories: 512 Kbytes of Flash memory, 128 Kbytes of SRAM, and up to 4 Kbytes of backup SRAM.
- Analog and Digital Peripherals: Three 12-bit ADCs, two 12-bit DACs, low-power RTC, and multiple timers.
- Communication Interfaces: Multiple I2C, USART, UART, SPI, SAI, CAN, and USB interfaces.
- Low Power Modes: Sleep, Stop, and Standby modes for power efficiency.
- Debug and Trace: SWD and JTAG interfaces, Cortex®-M4 Trace Macrocell™.
- I/Os and Peripherals: Up to 114 I/O ports with interrupt capability, up to 111 fast I/Os, and up to 112 5 V-tolerant I/Os.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication.
- Consumer Electronics: Used in advanced consumer electronics requiring high performance and low power consumption.
- Medical Devices: Applicable in medical devices that require precise analog and digital processing.
- Automotive Systems: Can be used in automotive systems for control and communication.
- IoT and Wearables: Ideal for IoT devices and wearables due to its low power modes and extensive peripheral set.
Q & A
- What is the core architecture of the STM32F446ZEJ7TR?
The STM32F446ZEJ7TR is based on the Arm® 32-bit Cortex®-M4 CPU with FPU and DSP instructions.
- How much Flash and SRAM memory does the STM32F446ZEJ7TR have?
The microcontroller has 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- What are the key analog peripherals of the STM32F446ZEJ7TR?
It features three 12-bit ADCs and two 12-bit DACs.
- What communication interfaces are available on the STM32F446ZEJ7TR?
The microcontroller includes multiple I2C, USART, UART, SPI, SAI, CAN, and USB interfaces.
- What are the low power modes available on the STM32F446ZEJ7TR?
The microcontroller supports Sleep, Stop, and Standby modes for power efficiency.
- What is the operating voltage range of the STM32F446ZEJ7TR?
The operating voltage range is from 1.7 V to 3.6 V.
- What is the package type of the STM32F446ZEJ7TR?
The package type is UFBGA 144 10x10x0.6 P 0.8 mm.
- What is the maximum operating frequency of the STM32F446ZEJ7TR?
The maximum operating frequency is up to 180 MHz.
- Does the STM32F446ZEJ7TR support debug and trace capabilities?
Yes, it supports SWD and JTAG interfaces, along with the Cortex®-M4 Trace Macrocell™.
- What are some typical applications of the STM32F446ZEJ7TR?
It is suitable for industrial automation, consumer electronics, medical devices, automotive systems, and IoT/wearable devices.
