Dual-core architecture — what the speed split means for your design
The STM32H745IGT6 pairs a Cortex-M4 core clocked at 240 MHz with a Cortex-M7 core at 480 MHz. That asymmetry is deliberate: the M7 handles heavy DSP or floating-point math while the M4 runs control logic, communication stacks, or safety monitoring. The 1 MB Flash and 1 MB RAM are matched, so neither core starves the other on code or data space. For a mixed-criticality system — say, a motor drive with real-time fieldbus — you partition the M4 for the safety loop and the M7 for the FOC algorithm without a second chip.
Connectivity and I/O — gateway-class peripheral set
With Ethernet, dual USB OTG, CANbus, and a full suite of serial interfaces (UART/USART, SPI, I²C, SAI, SPDIF, QSPI), this MCU is wired for industrial gateway, HMI, or edge-compute roles. The 119 I/O in a 176-LQFP package give enough headroom for parallel memory or display buses alongside the fieldbus ports. The 24x24 mm body is a standard footprint for mid-complexity boards — no fine-pitch routing surprises.
Temperature grade and environment
Rated for -40°C to 85°C ambient. Supply range is 1.62 V to 3.6 V.