STM32 F4 series of high-performance MCUs with DSP and FPU instructions

The ARM® Cortex™-M4-based STM32 F4 series is an extension of the industry-leading STM32 portfolio towards even higher performance. Like the STM32 F2 series, these MCUs leverage ST‘s 90 nm NVM technology and ST’s ART Accelerator™ to reach the industry’s highest benchmark scores for Cortex-M-based microcontrollers with up to 225 DMIPS/606 CoreMark executing from Flash memory at 180 MHz operating frequency.

The DSP instructions and the floating point unit enlarge the range of addressable applications. ST’s 90 nm process, ART Accelerator and the dynamic power scaling enables the current consumption in run mode and executing from Flash memory to be as low as 140 µA/MHz on the STM32F401 (up to 84 MHz) and only 238 µA/MHz on the STM32F42x/43x (up to 180 MHz).

The STM32 F4 series is the result of a perfect symbiosis of the real-time control capabilities of an MCU and the signal processing performance of a DSP, and thus complements the STM32 portfolio with a new class of devices, digital signal controllers (DSC).

The series consists of five product lines which are pin-to-pin, peripheral and software compatible.

• STM32F401– 84 MHz CPU/105 DMIPS. Entry level to STM32 F4 series, offering lower power capability and small form factor packages versus the other members of the STM32 F4 series.
• STM32F405/415 – 168 MHz CPU/210 DMIPS, up to 1 Mbyte of Flash with advanced connectivity and encryption.
• STM32F407/417 – 168 MHz CPU/210 DMIPS up to 1 Mbyte of Flash adding Ethernet MAC and camera interface to the STM32F405/415.
• STM32F427/437 – 168 MHz CPU/210 DMIPS, up to 2 Mbytes of Flash adding more connectivity and encryption features to the STM32F407/F417.
• STM32F429/439 – 180 MHz CPU/225 DMIPS, up to 2 Mbytes of dual-bank Flash with SDRAM interface, TFT LCD controller, Chrom-ART Accelerator, serial audio interface, and offering more performance and lower static power consumption versus the STM32F4x7/F4x5.