STMicroelectronics STM32H757BIT6

Overview

STM32H757BIT6 from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (480 MHz) + Cortex®-M4 (240 MHz) microcontroller with 2 MB flash, 1 MB RAM (192 KB TCM), integrated SMPS regulator, DSI host, and hardware JPEG codec. It serves as a high-performance application processor in industrial HMI, motor control gateways, and secure edge AI inference nodes requiring real-time co-processing and rich peripheral integration.

For engineers reviewing the STM32H757BIT6 datasheet, STM32H757BIT6 pinout, STM32H757BIT6 application, or STM32H757BIT6 equivalent, key selection criteria include dual-core deterministic latency, 168 GPIOs with interrupt capability, 3× PLLs with fractional mode, and support for MIPI D-PHY-based display interfaces - all validated in production-grade DS12931 Rev 5.

Technical Context

The device implements a three-domain power architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across performance, communication, and system-control subsystems. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB and two AXI2-AHB bridges, ensuring deterministic latency for time-critical M7 tasks while offloading M4-peripheral traffic.

Dual-core operation is coordinated via shared memory with hardware semaphores and event forwarding; the M7 core executes high-throughput signal processing using its double-precision FPU and 32 KB L1 cache, while the M4 handles real-time I/O management with ART Accelerator-enabled flash execution at 240 MHz.

Key Specifications

Pinout & Package

STM32H757BIT6 is housed in a 169-ball Ultra-Fine Pitch Ball Grid Array (UFBGA169) package measuring 7 mm × 7 mm with 0.5 mm ball pitch. This package supports high-density PCB layouts and thermal dissipation requirements for sustained dual-core operation at 480 MHz.

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 STM32H747IIT6, the STM32H757BIT6 adds SMPS, DSI, and JPEG acceleration for self-contained display systems; versus i.MX RT1176DVMAA, it trades raw M7 speed for deterministic dual-core I/O handling and automotive-grade CAN FD support.

Availability

STM32H757BIT6 is available at Aetrix Electronics and suitable for industrial HMI gateways, high-performance motor control systems, secure edge AI nodes, and multi-protocol industrial routers requiring stable component supply across extended product lifecycles.

Supply support for STM32H757BIT6 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 with over 40 years of industrial-grade design heritage.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, security, and rich multimedia capabilities - designed specifically for industrial automation, medical imaging, and automotive gateway systems.

FAQ

What is the maximum operating frequency of each core in the STM32H757BIT6?

The Cortex-M7 core operates at up to 480 MHz with double-precision FPU and 32 KB L1 cache (16 KB instruction + 16 KB data), delivering 1027 DMIPS. The Cortex-M4 core runs at up to 240 MHz with single-precision FPU and ART Accelerator, achieving 300 DMIPS. Both frequencies are validated under full voltage scaling and thermal conditions per DS12931 Rev 5 Section 6.3.14.

Does the STM32H757BIT6 support hardware-accelerated cryptography?

Yes - it integrates dedicated CRYP and HASH peripherals supporting AES-128/192/256, TDES, SHA-1/SHA-224/SHA-256, HMAC, and a true random number generator (TRNG). These accelerators operate independently of CPU cores, enabling secure boot, encrypted OTA updates, and TLS 1.2 handshake offload without impacting real-time task scheduling.

How many I/O pins are available in the UFBGA169 package?

The STM32H757BIT6 in UFBGA169 provides 148 user-configurable I/O pins, all supporting interrupt capability and multiple alternate functions. Pin definitions and alternate function mappings are fully documented in Section 5 (Pinout and Alternate Functions) of DS12931 Rev 5, with electrical characteristics specified in Table 10 and Table 18.

What display interfaces does the STM32H757BIT6 support natively?

It features a native MIPI DSI host with integrated D-PHY supporting up to 4 data lanes (DSI_D0P–DSI_D3P) and 1 clock lane, capable of driving XGA-resolution displays. It also includes an LCD-TFT controller (LTDC) with Chrom-ART DMA2D accelerator and hardware JPEG codec - eliminating need for external display bridge ICs or frame buffer memory.