Dual-core architecture — 240 MHz Cortex-M4 plus 480 MHz Cortex-M7
The STM32H745ZIT3 is a 32-bit dual-core microcontroller from STMicroelectronics' STM32H7 series, pairing an ARM Cortex-M4 core running at 240 MHz with a Cortex-M7 core at 480 MHz. This asymmetric architecture lets the M7 handle compute-intensive tasks — real-time control loops, signal processing, or graphics — while the M4 manages communication stacks, housekeeping, or low-power background routines.
Connectivity and peripheral set — Ethernet, CAN, USB OTG on a single die
The 97 I/Os in the 144-LQFP package give enough routing flexibility for a sensor-fusion board or a motor-drive controller with external encoder interfaces. The data converter block includes a 23-channel 16-bit ADC and a 2-channel 12-bit DAC, covering most analog front-end needs without an external converter.
Temperature range and package — 144-LQFP for inspectable assembly
The 144-LQFP package measures 20x20 mm with a 0.5 mm pitch — hand-solderable in rework, inspectable under a microscope, and compatible with standard QFP sockets for prototyping. Supply voltage spans 1.62 V to 3.6 V, allowing single 3.3 V or dual 1.8 V/3.3 V rail designs without an extra regulator.
Lifecycle and sourcing posture
Listed as Active by STMicroelectronics, so no last-time-buy pressure and no urgent need to qualify a second source. If a pin-compatible alternative is needed for dual-sourcing, the STM32H745 family shares the same footprint across density and temperature variants.