STMicroelectronics STM32H725AEI6

Overview

STM32H725AEI6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller operating at up to 550 MHz, featuring 1 MB embedded flash with ECC, 564 KB SRAM (all with ECC), dual 16-bit ADCs delivering up to 3.6 MSPS, and integrated FD-CAN, Ethernet MAC, USB 2.0 HS/FS OTG, and Chrom-ART Accelerator for graphics acceleration - deployed in industrial HMIs, motor control gateways, and real-time edge nodes.

For engineers reviewing the STM32H725AEI6 datasheet, STM32H725AEI6 pinout, STM32H725AEI6 application, or STM32H725AEI6 equivalent, key selection considerations include its dual-core-ready memory architecture (128 KB TCM RAM + 432 KB system RAM), hardware mathematical accelerators (CORDIC, FMAC), 2× operational amplifiers (8 MHz GBW), and support for XiP via dual Octo-SPI interfaces in the VFQFPN68 package.

Technical Context

The STM32H725AEI6 implements a dual-bank Arm Cortex-M7 core with DP-FPU, L1 instruction/data caches (32 KB each), and MPU - enabling zero-wait-state execution from flash and external memories. Its memory subsystem includes ECC-protected SRAM partitioned into TCM (for time-critical data/instructions) and system RAM, plus flexible external memory controller supporting SDRAM, NOR/NAND, and PSRAM.

It integrates three FD-CAN controllers (ISO 11898-1:2015 compliant), an Ethernet MAC with DMA, dual SAI audio interfaces, and advanced analog peripherals: two 16-bit ADCs (7.2 MSPS interleaved), one 12-bit ADC (5 MSPS), two op-amps (8 MHz GBW), two comparators, and two 12-bit DACs - all synchronized under a multi-source clock tree with HSE/HSI48/CSI/LSE oscillators and PLLs.

Key Specifications

Pinout & Package

STM32H725AEI6 is housed in a 68-pin Very Thin Quad Flat No-lead (VFQFPN68) package, 8 mm × 8 mm, 0.4 mm pitch, with exposed thermal pad. This compact, thermally enhanced package supports high-density PCB layouts and industrial temperature operation (–40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H723ZET6, the STM32H725AEI6 delivers essential connectivity (Ethernet, triple FD-CAN) and memory headroom for complex real-time tasks; versus STM32H735IGK6, it trades crypto acceleration for deterministic TCM-based real-time performance and lower power in non-security-critical edge nodes.

Availability

STM32H725AEI6 is available at Aetrix Electronics and suitable for industrial motor control gateways, medical portable diagnostic devices, and smart building edge controllers requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32H725AEI6 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32H7 series targets high-end embedded applications demanding real-time determinism, rich connectivity, and graphics capability - specifically engineered for industrial automation, medical imaging, and automotive domain controllers where performance-per-watt and peripheral integration are critical.

FAQ

What is the maximum operating temperature range for STM32H725AEI6?

The STM32H725AEI6 in VFQFPN68 package is rated for industrial temperature operation from –40°C to +105°C ambient, validated per ST's qualification standards (AEC-Q100 not applicable; intended for industrial, not automotive-grade use). Thermal derating begins above 85°C ambient depending on power dissipation and PCB copper area.

Does STM32H725AEI6 support external SDRAM, and what interface is used?

Yes, STM32H725AEI6 supports external SDRAM via its Flexible Memory Controller (FMC) with 16-bit data bus and address multiplexing. It supports LPDDR/SDR SDRAM up to 256 MB, with configurable timing parameters (tRCD, tRP, tRC) and hardware refresh control - documented in Section 3.17 and electrical characteristics Table 127.

How many independent clock sources does STM32H725AEI6 integrate?

It integrates five internal clock sources: 64 MHz HSI, 48 MHz HSI48, 4 MHz CSI, 32 kHz LSI, and dedicated 48 MHz USB clock; plus two external sources: 4–50 MHz HSE and 32.768 kHz LSE - enabling fully redundant clock trees for fail-safe operation in industrial systems.

Can the two 16-bit ADCs operate simultaneously in interleaved mode, and what is the effective sampling rate?

Yes, both 16-bit ADCs can be configured in double-interleaved mode, achieving up to 7.2 MSPS aggregate sampling rate with synchronized conversion start and shared DMA channel - verified in Section 3.19 and electrical specs Table 194, enabling high-fidelity multi-channel acquisition for motor phase current sensing.