STMicroelectronics STM32H735ZGT6

Overview

STM32H735ZGT6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 MCU operating at 550 MHz, featuring 1 MB flash with ECC, 564 KB SRAM (all with ECC), dual 16-bit ADCs up to 3.6 MSPS, triple FD-CAN, Ethernet MAC, USB HS/FS OTG, and hardware crypto acceleration (AES-128/192/256, SHA-2, HMAC). It targets real-time industrial HMI, motor control gateways, and secure edge nodes requiring deterministic processing and rich peripheral integration.

For engineers reviewing the STM32H735ZGT6 datasheet, STM32H735ZGT6 pinout, STM32H735ZGT6 application, or STM32H735ZGT6 equivalent, key selection considerations include its 550 MHz M7 core with L1 cache, 68-pin VFQFPN package with 128 I/Os, triple FD-CAN support for automotive diagnostics, integrated Chrom-ART accelerator for XGA LCD-TFT rendering, and on-the-fly Octo-SPI decryption for secure firmware execution.

Technical Context

This MCU implements a dual-bank Arm Cortex-M7 core with tightly coupled memory architecture: 32 KB instruction and 32 KB data caches enable zero-wait-state execution from flash or external memory. Its memory subsystem includes 128 KB TCM RAM for time-critical code/data and 432 KB system RAM-up to 256 KB remappable as instruction TCM-supporting deterministic real-time response.

The peripheral set is optimized for heterogeneous system integration: three FD-CAN controllers (ISO 11898-1:2015 compliant) with protocol timing flexibility, dual 16-bit ADCs capable of 7.2 MSPS in interleaved mode across 22 channels, and two independent 12-bit DACs for analog output generation-all with full ECC protection and hardware-accelerated cryptographic services (CRYP/HASH/OTFDEC).

Key Specifications

Pinout & Package

STM32H735ZGT6 uses a 68-pin Very Thin Quad Flat No-lead (VFQFPN) package with 8 mm × 8 mm body and 0.4 mm pitch. The exposed thermal pad improves thermal dissipation for sustained 550 MHz operation under industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance MCU applications.

Compared with STM32H735ZGT6, the H743VIT6 trades Ethernet and FD-CAN3 for doubled memory, while the H753ZIT6 retains identical peripheral count plus integrated RMII PHY - making it ideal for space-constrained Ethernet edge nodes where external PHY placement is impractical.

Availability

STM32H735ZGT6 is available at Aetrix Electronics and suitable for industrial motor control gateways, secure IIoT edge nodes, human-machine interface terminals, and automotive diagnostic tools requiring stable component supply across multi-year production cycles.

Supply support for STM32H735ZGT6 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 devices for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time performance, advanced security, and rich connectivity - specifically engineered for industrial automation, motor control, and secure edge computing where deterministic latency and hardware-enforced trust are non-negotiable.

FAQ

What is the maximum operating frequency and core type of the STM32H735ZGT6?

The STM32H735ZGT6 features an Arm Cortex-M7 core rated for up to 550 MHz operation. It includes double-precision floating-point unit (DP-FPU), memory protection unit (MPU), and 32 KB instruction + 32 KB data caches. All performance figures-including 1177 DMIPS and 2.14 DMIPS/MHz-are measured using Dhrystone 2.1 benchmark under specified voltage and temperature conditions per DS13312 Rev 4.

Does the STM32H735ZGT6 support hardware cryptographic acceleration?

Yes, the STM32H735ZGT6 integrates dedicated hardware accelerators for AES-128/192/256, TDES, SHA-1/SHA-2 (MD5, SHA-1, SHA-224, SHA-256), HMAC, and true random number generation (RNG). It also includes two OTFDEC modules for on-the-fly AES-128 decryption of Octo-SPI external memory, enabling secure XIP execution without exposing decrypted firmware in RAM.

How many FD-CAN interfaces does the STM32H735ZGT6 provide, and what standards do they support?

The STM32H735ZGT6 integrates three fully independent FD-CAN controllers (FDCAN1, FDCAN2, FDCAN3), each compliant with ISO 11898-1:2015 for CAN FD operation. They support bit rates up to 5 Mbps in FD mode, programmable data phase timing, flexible message filtering, and built-in protocol exception handling - enabling simultaneous diagnostics, control, and safety communication in automotive and industrial networks.

What package type and pin count does the STM32H735ZGT6 use?

The STM32H735ZGT6 uses a VFQFPN68 package: a 68-pin, 8 mm × 8 mm, very thin quad flat no-lead package with 0.4 mm pitch and exposed thermal pad. This package is ECOPACK2-compliant and optimized for high-density PCB layouts requiring efficient thermal management under sustained 550 MHz operation.