STM32H755XIH3

STM32H755XIH3 is a high‑performance MCU in STMicroelectronics’ STM32H7 family. It uses a dual‑core Arm Cortex‑M7 main processor with an optional Cortex‑M4 companion, designed for compute‑intensive and real‑time control tasks.
Key points
- Dual‑core: Cortex‑M7 + Cortex‑M4 for separating heavy processing from real‑time control.
- High performance: multicore execution with caches and advanced memory system.
- Rich peripherals: USB, Ethernet, CAN, SPI/I2C/UART, SDMMC; graphics display support with LCD‑TFT controller and Chrom‑ART (DMA2D) for image processing.
- Security and DSP: hardware cryptography engine, RNG, CRC and DSP/FP acceleration.
- Memory and I/O: ample on‑chip Flash and RAM, plus external memory interfaces and wide peripheral options.
- Software: supported by STM32CubeMX/HAL/LL drivers, middleware, and ecosystem tools.
- Applications: industrial automation, motor control, embedded graphics/HMI, IoT gateways, multimedia and safety‑critical systems.
- Packaging/temperature: available in industrial/temp ranges with various package options.
For exact specs (clock speeds, memory sizes, package code XIH3), consult the official datasheet and reference manuals.

STM32H755XIH3 uses a 176-pin LQFP package (LQFP176).

Pin count: 256 pins (IH3 package).
Function: High-performance 32‑bit microcontroller in the STM32H7 family with a dual-core ARM Cortex‑M7 main core and Cortex‑M4 coprocessor (for advanced embedded applications).

STMicroelectronics (ST) is the manufacturer of the STM32H755XIH3. STMicroelectronics is a multinational European semiconductor company headquartered in Geneva, Switzerland. It designs, manufactures, and sells a broad range of semiconductor devices, including microcontrollers (STM32), sensors/MEMS, analog and power ICs, serving automotive, industrial, and consumer markets.

Applications areas for STM32H755XIH3 include:
- Industrial automation and motor control (servo, CNC, drives)
- Human-machine interfaces (HMI) and touch displays
- Power electronics and energy management
- IoT gateways, sensors, edge computing and data logging
- Audio, voice, and multimedia processing
- Medical devices and portable monitoring
- Robotics and embedded systems
- Edge AI/ML inference and sensor fusion

Equivalents depend on required peripherals and package. Closest ST options: STM32H7 family with similar performance, e.g., STM32H757, STM32H745 (and H750). Cross‑vendor Cortex‑M7 MCUs: NXP i.MX RT1060/RT1170; Microchip SAM S70/S90 (Cortex‑M7). For exact pinout/memory, verify package, RAM, and peripherals.