STMicroelectronics STM32H757XIH6U

Overview

STM32H757XIH6U from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (480 MHz) and Cortex®-M4 (240 MHz) microcontroller with 2 MB flash, 1 MB RAM (including 192 KB TCM), and integrated SMPS regulator. It features DSI host, crypto accelerators (AES-256, HASH), and 46 communication/analog interfaces - deployed in industrial HMI, medical imaging front-ends, and real-time motor control systems.

For engineers reviewing the STM32H757XIH6U datasheet, STM32H757XIH6U pinout, STM32H757XIH6U application, or STM32H757XIH6U equivalent, key selection criteria include dual-core asymmetric execution capability, on-chip SMPS support for power-sensitive designs, DSI interface readiness for embedded display subsystems, and hardware JPEG/DFSDM acceleration for vision and sensor fusion workloads.

Technical Context

The device implements a three-domain power architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across high-performance, peripheral, and system-control subsystems. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, supporting concurrent high-bandwidth data flows between CPU cores, DMA controllers (MDMA, dual-port DMAs), and peripherals.

Dual-core operation is coordinated via shared memory, mailbox, and semaphore mechanisms, with the M7 core handling compute-intensive tasks (e.g., real-time control loops, JPEG decode) while the M4 manages deterministic I/O and communication stacks (CAN FD, USB OTG, Ethernet MAC). The ART Accelerator enables zero-wait-state execution from internal flash at up to 240 MHz for the M4 core.

Key Specifications

Pinout & Package

STM32H757XIH6U is packaged in UFBGA169 (7 × 7 mm, 0.5 mm pitch), a fine-pitch ball grid array optimized for high I/O density and thermal performance in space-constrained industrial and medical applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Arm Cortex-M7/M4 microcontroller applications.

Compared with STM32H747XIH6, the STM32H757XIH6U adds DSI, JPEG, and second CAN FD - critical for display-integrated systems. Against i.MX RT1176DVMAA, it trades raw M7 speed for integrated power management and smaller form factor, favoring compact, self-contained industrial modules.

Availability

STM32H757XIH6U is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, real-time motor control, and secure edge gateways requiring stable component supply across long-lifecycle deployments.

Supply support for STM32H757XIH6U includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32H7 series targets high-performance embedded applications demanding real-time determinism, rich connectivity, and hardware-accelerated security - especially where dual-core asymmetry and integrated power conversion reduce system complexity.

FAQ

What is the maximum operating frequency of each core in the STM32H757XIH6U?

The Arm Cortex-M7 core runs at up to 480 MHz (1027 DMIPS), while the Cortex-M4 core operates at up to 240 MHz (300 DMIPS). Both cores feature independent clock trees, FPU, and MPU. Frequency is sustained under full voltage scaling (Range 0) with proper thermal management and SMPS/LDO configuration per Section 6.3.4 of DS12931 Rev 5.

Does the STM32H757XIH6U support hardware JPEG encoding and decoding?

Yes - it integrates a dedicated hardware JPEG codec capable of real-time encoding and decoding of YUV422/RGB565 images up to UXGA (1600×1200) resolution. Throughput reaches 60 fps for QVGA and 15 fps for UXGA, offloading the CPU and reducing memory bandwidth requirements for display and imaging pipelines.

How does the SMPS regulator function in the STM32H757XIH6U?

The integrated SMPS step-down converter directly supplies the VCORE domain and can also power external circuitry. It supports input voltages from 2.5 V to 5.5 V, delivers up to 300 mA, and achieves >90% efficiency. External components (inductor, capacitor, feedback resistors) are specified in Tables 16–17 of DS12931 Rev 5, with layout guidelines in Section 7.7.

Which packages are compatible with the STM32H757XIH6U pinout?

The STM32H757XIH6U uses the UFBGA169 package (7 × 7 mm, 0.5 mm pitch, part marking "H6U"). It is not pin-compatible with other STM32H757 variants in LQFP176, LQFP208, TFBGA240+25, or WLCSP156 packages due to differing ball/pad counts and signal assignments per Table 8 and Section 7 of DS12931 Rev 5.