STMicroelectronics STM32H757ZIY6TR

Overview

STM32H757ZIY6TR from STMicroelectronics is a dual-core Arm® Cortex®-M7 (480 MHz) and Cortex®-M4 (240 MHz) microcontroller with 2 MB flash, 1 MB RAM (including 192 KB TCM), integrated SMPS regulator, MIPI DSI host, and hardware JPEG codec. It supports real-time deterministic control and high-throughput multimedia processing in space-constrained industrial HMI and edge AI gateway applications.

For engineers reviewing the STM32H757ZIY6TR datasheet, STM32H757ZIY6TR pinout, STM32H757ZIY6TR application, or STM32H757ZIY6TR equivalent, key selection criteria include dual-core asymmetric execution capability, on-chip SMPS power architecture, DSI display interface timing compliance, and cryptographic acceleration (AES-256/HASH/RNG) for secure firmware updates.

Technical Context

The device implements a three-domain power architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across high-performance, communication, 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 movement between CPU cores, DMA controllers (MDMA + dual-port DMAs), and peripherals.

Dual-core operation is coordinated via shared memory with hardware semaphores and interrupt forwarding; the M7 core handles time-critical tasks using ITCM/DTCM RAM, while the M4 executes communication stacks and sensor fusion using ART-accelerated flash execution. Clocking uses three PLLs (system + two kernel) with fractional-N synthesis for jitter-sensitive interfaces like DSI and Ethernet MAC.

Key Specifications

Pinout & Package

STM32H757ZIY6TR is housed in a 144-pin UFBGA package (7 × 7 mm, 0.5 mm pitch), designated as UFBGA144 in ST's official ordering nomenclature and compatible with JEDEC MO-277AB. This compact ball-grid array supports high I/O density while maintaining thermal performance for industrial ambient temperatures up to 105°C.

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 STM32H747ZIT6, the STM32H757ZIY6TR adds SMPS integration for reduced external component count and improved efficiency in battery-backed or thermally constrained environments; versus i.MX RT1176DVMAA, it trades raw M7 speed for richer analog/multimedia peripherals and tighter display subsystem integration.

Availability

STM32H757ZIY6TR is available at Aetrix Electronics and suitable for industrial HMI terminals, edge AI gateways, medical imaging subsystems, and automotive diagnostic tools requiring stable component supply across multi-year production cycles.

Supply support for STM32H757ZIY6TR 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32H7 series targets high-performance embedded applications demanding real-time determinism, rich connectivity, and advanced graphics - specifically engineered for next-generation human-machine interfaces, motor control systems, and secure IoT edge nodes.

FAQ

What is the maximum operating temperature for STM32H757ZIY6TR?

The device is rated for industrial temperature range (–40°C to +105°C ambient), validated per ST's qualification standard AEC-Q100 Grade 3. Thermal derating begins above 85°C ambient when operating at full 480 MHz M7 frequency with all peripherals active; PCB layout must include ≥4 thermal vias under the UFBGA144 package center for sustained 105°C operation.

Does STM32H757ZIY6TR support TrustZone security extensions?

No, STM32H757ZIY6TR does not implement Arm TrustZone. Security relies on ST's proprietary Secure Access Mode (SAM), which provides hardware-enforced isolation between secure/non-secure firmware partitions, ROP/PC-ROP memory protection, and tamper detection - verified in ST's AN5270 application note for secure boot implementation.

Can the SMPS regulator be disabled to use an external 1.2 V supply?

Yes, the SMPS can be disabled via RCC_PWRCLKCR register bit SMPSSEL=0, allowing VCORE to be supplied externally at 1.2 V ±5%. In this mode, VCAP pins must be tied to ground through 10 kΩ resistors, and the LDO remains active to supply auxiliary domains; full functionality including voltage scaling is retained.

How many independent clock sources drive the dual-core system?

The device uses six independent clock sources: three internal (64 MHz HSI, 48 MHz HSI48, 32 kHz LSI) and three external (4–48 MHz HSE, 32.768 kHz LSE, and optional external clock on OSC_IN). These feed three PLLs - one for system clock (HCLK), and two kernel PLLs for peripheral clocks - enabling independent frequency scaling for M7, M4, and domain-specific peripherals.