Overview
The STM32F411RET6 microcontroller, produced by STMicroelectronics, is part of the STM32 Dynamic Efficiency product line. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 100 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 is designed to combine power efficiency, performance, and integration, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 100 MHz |
| Flash Memory | Up to 512 Kbytes |
| SRAM | 128 Kbytes |
| Power Supply | 1.7 V to 3.6 V |
| Temperature Range | -40°C to 85/105/125 °C |
| ADC | 1×12-bit, 2.4 MSPS, up to 16 channels |
| Timers | Up to 11 timers (6 x 16-bit, 2 x 32-bit) |
| Communication Interfaces | Up to 3 x I2C, 3 x USART, 5 x SPI/I2S, USB 2.0 full-speed device/host/OTG |
| I/O Ports | Up to 81 I/O ports with interrupt capability |
| Debug Mode | Serial wire debug (SWD) & JTAG interfaces |
| Power Consumption | Run: 100 µA/MHz, Stop: 42 µA @ 25°C, Standby: 1.8 µA @ 25°C / 1.7 V without RTC |
Key Features
- Dynamic Efficiency Line with Batch Acquisition Mode (BAM) for reduced power consumption during data batching.
- Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory.
- Memory protection unit (MPU) for enhanced application security.
- High-speed embedded memories: up to 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
- Low-power RTC with subsecond accuracy and hardware calendar.
- General-purpose DMA: 16-stream DMA controllers with FIFOs and burst support.
- Up to 13 communication interfaces including I2C, USART, SPI/I2S, and USB 2.0 full-speed device/host/OTG.
- CRC calculation unit and 96-bit unique ID.
Applications
The STM32F411RET6 microcontroller is versatile and can be used in a variety of applications, including:
- Industrial automation and control systems.
- Medical devices requiring high performance and low power consumption.
- Aerospace and defense systems where reliability and security are critical.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, including infotainment and driver assistance systems.
Q & A
- What is the core architecture of the STM32F411RET6 microcontroller?
The STM32F411RET6 is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the maximum operating frequency of the STM32F411RET6?
The maximum operating frequency is up to 100 MHz.
- How much Flash and SRAM memory does the STM32F411RET6 have?
It has up to 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- What is the power supply range for the STM32F411RET6?
The power supply range is from 1.7 V to 3.6 V.
- What are the key communication interfaces available on the STM32F411RET6?
The device features up to 3 x I2C, 3 x USART, 5 x SPI/I2S, and a USB 2.0 full-speed device/host/OTG interface.
- How many I/O ports does the STM32F411RET6 have?
It has up to 81 I/O ports with interrupt capability.
- What is the Batch Acquisition Mode (BAM) in the STM32F411RET6?
BAM is a feature that allows for reduced power consumption during data batching.
- Does the STM32F411RET6 support debug modes?
- What is the typical power consumption in different modes for the STM32F411RET6?
Run: 100 µA/MHz, Stop: 42 µA @ 25°C, Standby: 1.8 µA @ 25°C / 1.7 V without RTC.
- What are some common applications for the STM32F411RET6 microcontroller?
It is used in industrial automation, medical devices, aerospace, consumer electronics, and automotive systems.
