Overview
The STM32F411RET6U, produced by STMicroelectronics, is a high-performance microcontroller based on the Arm® Cortex®-M4 32-bit RISC core. This device operates at a frequency of up to 100 MHz and features a floating-point unit (FPU) that supports all Arm single-precision data-processing instructions and data types. It is part of the STM32 Dynamic Efficiency product line, which combines power efficiency, performance, and integration. The STM32F411RET6U includes innovative features such as Batch Acquisition Mode (BAM), which enhances power savings during data batching.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator) |
| Frequency | Up to 100 MHz |
| Memories | Up to 512 Kbytes of flash memory, 128 Kbytes of SRAM |
| 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 A/D converter: up to 16 channels |
| Timers | Up to 11 timers: up to six 16-bit, two 32-bit timers up to 100 MHz |
| Communication Interfaces | Up to 3 USARTs, 5 SPI/I2Ss, 3 I²C interfaces, USB 2.0 full-speed device/host/OTG controller |
| I/O Ports | Up to 81 I/O ports with interrupt capability, up to 78 fast I/Os up to 100 MHz |
| Power Consumption | Run: 100 µA/MHz (peripheral off), Standby: 1.8 µA at 25 °C / 1.7 V without RTC |
Key Features
- Includes ST state-of-the-art patented technology
- Dynamic efficiency line with Batch Acquisition Mode (BAM)
- Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator)
- Memory protection unit (MPU) for enhanced application security
- General-purpose DMA: 16-stream DMA controllers with FIFOs and burst support
- Serial wire debug (SWD) & JTAG interfaces, Cortex®-M4 Embedded Trace Macrocell™
- Up to 13 communication interfaces including USB 2.0 full-speed device/host/OTG controller
- Advanced motor control timers and watchdog timers
- RTC with subsecond accuracy, hardware calendar
Applications
- Motor drive and application control
- Medical equipment
- Industrial applications: PLC, inverters, circuit breakers
- Printers and scanners
- Alarm systems
Q & A
- What is the core architecture of the STM32F411RET6U?
The STM32F411RET6U is based on the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32F411RET6U?
The maximum operating frequency is up to 100 MHz.
- What types of memories are available on the STM32F411RET6U?
Up to 512 Kbytes of flash memory and 128 Kbytes of SRAM.
- What is the power supply range for the STM32F411RET6U?
The power supply range is from 1.7 V to 3.6 V.
- What is the temperature range for the STM32F411RET6U?
The temperature range is from -40°C to 85/105/125 °C.
- What is the Batch Acquisition Mode (BAM) feature?
BAM allows for power savings during data batching by exchanging batches of data through communication peripherals while the rest of the device is in power-saving mode.
- What communication interfaces are available on the STM32F411RET6U?
Up to 3 USARTs, 5 SPI/I2Ss, 3 I²C interfaces, and a USB 2.0 full-speed device/host/OTG controller.
- How many I/O ports does the STM32F411RET6U have?
Up to 81 I/O ports with interrupt capability.
- What is the power consumption in standby mode?
Standby: 1.8 µA at 25 °C / 1.7 V without RTC.
- What are some typical applications for the STM32F411RET6U?
Motor drive and application control, medical equipment, industrial applications, printers and scanners, and alarm systems.
