The STM32F411 microcontrollers are part of the STM32 Dynamic Efficiency™ lines. These devices are the entry level to the High Performance F4 Series and offer the best balance of dynamic power consumption (in run mode) and processing performance, while integrating a high number of added-value features in packages as small as 3 x 3 mm.

The STM32F411 MCUs deliver the performance of Cortex®-M4 core with floating point unit, running at 100 MHz, while achieving outstandingly low power consumption values in run and stop modes.

With a new, Batch Acquisition Mode (BAM), optimizing power consumption for data batching, the STM32F411 takes the Dynamic Efficiency to a new level. This BAM allows exchanging batches of data through communication peripherals with the rest of the device (including the CPU) being in power saving mode.

  • Performance: At 100 MHz, the STM32F411 delivers 125 DMIPS/339 CoreMark performance executing from Flash memory, with 0-wait states using ST’s ART Accelerator. The DSP instructions and the floating point unit enlarge the range of addressable applications.
  • Power efficiency: ST’s 90 nm process, ART Accelerator and the dynamic power scaling enables the current consumption when executing from Flash memory to be as low as 100 µA/MHz. In Stop mode, the power consumption can be as low as 10 µA.
  • Integration: The STM32F411 devices carry 256 to 512 Kbytes of Flash and up to 128 Kbytes of SRAM.
    The available packages range from 49 to 100 pins.
    • 3x USARTs running at up to 12.5 Mbit/s,
    • 5x SPI (muxed with I2S) running at up to 50 Mbit/s,
    • 3x I²C up to 1Mbps
    • 1x SDIO running at up to 48MHz and available on all packages,
    • 1x USB 2.0 OTG full speed,
    • 2x full duplex I²S up to 32-bit/192KHz,
    • 3x simplex I²S up to 32-bit/192KHz,
    • 12-bit ADC reaching 2.4 MSPS,
    • 11 timers, 16- and 32-bit, running at up to 100 MHz

Less dynamic current. More performance.

STM32 Dynamic Efficiency

STM32 Dynamic Efficiency stands for the reduction of Power consumption in run mode with a simultaneous increase in Performance and Integration (P2I), and is achieved with the following technologies:

  • ST's Adaptive Real Time (ART) Accelerator, a combination of prefetch queue and branch cache allowing zero-wait execution from embedded Flash. Execution from the branch speeds up the system, reduces the access to the Flash and reduces power consumption.
  • ST's 90 nm process bringing less dynamic power consumption while offering more integration and performance.
  • Dynamic voltage scaling, allowing to adjust the core voltage to the required execution speed on-the-fly, so that the device consumes just as much power as really needed to achieve a given performance. 

Experience Dynamic Efficiency now with the STM32F401 and STM32F411product lines.

STM32F4 Access lines: Entry level and still an F4!

The STM32F4 Access lines are made of STM32F401STM32F410,STM32F411 and STM32F412 devices. They are the entry-level STM32F4 microcontrollers for cost-conscious applications requiring performance, energy efficiency, integration and connectivity.

Access lines, but still with performance and power efficiency:

  • Performance up to 100 MHz/ 125 DMIPS with dynamic efficiency down to 89 µA/MHz in Run mode
  • ST's Adaptive Real Time (ART) accelerator allowing zero-wait execution from embedded Flash memory
  • Batch Acquisition Mode (BAM) for Always-on data collection, even when the core is stopped, and dynamic power scaling
  • Low-power digital microphone interface for acquisition of up to 4 microphones

Access lines, but still with high integration and compactness:

  • Wide memory choice from 128 Kbytes of Flash / 32 Kbytes of RAM up to 1 Mbyte of Flash / 256 Kbytes of RAM
  • Smallest Cortex-M4 based device available in the entire STM32 portfolio, down to 2.553 mm x 2.579 mm

Access lines, but still with rich connectivity:

  • Up to 10 UARTs, USB OTG FS, 2xCANs,  and up to 5 SPI/I2S interfaces
  • LCD parallel interface, 8080/6800 modes
  • QSPI and FMC parallel interfaces supporting a large choice of external memory types

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