Dual-core architecture that splits real-time and application processing
The STM32H747IIT6 is a 32-bit dual-core microcontroller from ST's STM32H7 series, combining an ARM Cortex-M7 core running at 480 MHz with a Cortex-M4 core at 240 MHz on a single die. The 2 MB Flash and 1 MB RAM give enough headroom for a combined real-time control loop and a rich user interface or communications stack. The 176-LQFP package keeps board layout manageable for industrial motor drives, high-end PLCs, and display-centric human-machine interfaces where the dual-core split offloads the GUI rendering from the control logic.
480 MHz Cortex-M7 plus 240 MHz Cortex-M4 — what that buys you
The Cortex-M7 handles the heavy compute — signal processing, floating-point math, or Ethernet stack — while the Cortex-M4 runs the deterministic control loop or sensor fusion without contention. Both cores share the 2 MB Flash and 1 MB RAM through the internal bus matrix, so there is no external memory needed for most designs. The 168 I/O and the full set of peripherals (CANbus, Ethernet, USB OTG, multiple SPI/I2C, QSPI, SAI, SPDIF) mean this single part can replace what used to require two MCUs and a bridge chip.
Lifecycle and channel posture
That means normal factory allocation and no last-time-buy pressure.