STMicroelectronics new STM32H7 family of microcontrollers includes the STM32H747 and STM32H757, high-performance dual-core devices which offer valuable power-saving features and enhanced cyber protection.
The STM32H7x7 MCUs include dual Arm® Cortex®-M7 and Cortex®-M4 cores which run at up to 480MHz and 240MHz respectively. To maximize energy efficiency, each core operates in its own power domain and can be turned off individually when not needed.
Benefiting from ST’s smart architecture, efficient L1 cache, and adaptive real-time ART Accelerator™ engine, the MCUs set new speed records of 1327 DMIPS and a 3224 CoreMark™ score when executing from embedded Flash. ST’s Chrom-ART Accelerator™ block provides an extra speed boost in graphics applications.
Developers can easily upgrade existing applications through flexible use of the two cores. They can add a sophisticated user interface to an application such as a motor drive formerly hosted on a single-core Cortex-M4 MCU by migrating legacy code to the STM32H7x7 Cortex-M4 core, with the new GUI running on the Cortex-M7 core. Another example is to boost application performance by offloading intensive workloads such as neural networks, checksums, DSP filtering, or audio codecs.
The dual-core architecture also helps to simplify code development and accelerate time to market in projects in which user-interface code may be developed separately from realtime control or communications features.
For applications which call for enhanced security, the STM32H757 also includes a cryptography/hash processor. It comes with pre-installed keys and native secure services including Secure Firmware Install (SFI). SFI lets customers order standard products anywhere in the world and have the encrypted firmware delivered to an external programming company without exposing unencrypted code. In addition, built-in support for Secure Boot and Secure Firmware Update protects over-the-air feature upgrades and patches.