STMicroelectronics STM32H7R7L8H6

Overview

STM32H7R7L8H6 from STMicroelectronics is an Arm® Cortex®-M7 32-bit microcontroller operating at up to 600 MHz, featuring 64 KB flash, 620 KB SRAM (548 KB with ECC), dual FD-CAN interfaces, Ethernet MAC, and hardware JPEG codec. It integrates NeoChrom GPU2D and Chrom-ART Accelerator for advanced graphics in industrial HMI and edge AI vision systems.

For engineers reviewing the STM32H7R7L8H6 datasheet, STM32H7R7L8H6 pinout, STM32H7R7L8H6 application, or STM32H7R7L8H6 equivalent, key selection criteria include FD-CAN timing compliance, TCM RAM allocation for real-time control loops, LQFP176 package thermal performance, and secure firmware update (SFI/SFU) capability using embedded root secure services.

Technical Context

This MCU implements a dual-bank Arm Cortex-M7 core with MPU, DP-FPU, and 32+32 KB L1 instruction/data cache enabling zero-wait-state execution. It supports deterministic real-time operation via 64+64 KB TCM RAM and dual-port DMA controllers with FIFO and linked-list support.

The device integrates dedicated security IP including public key accelerator (ECC verification only), HASH engine, NIST SP800-90B-compliant TRNG, and secure hide protection area (HDP). Graphics acceleration includes NeoChrom GPU2D for perspective-correct texture mapping and Chrom-GRC (GFXMMU) for 20% resource optimization.

Key Specifications

Pinout & Package

STM32H7R7L8H6 is housed in a 176-pin LQFP package (24 × 24 mm, 0.5 mm pitch), optimized for thermal dissipation and PCB routing simplicity in industrial control modules. The package supports full I/O count (up to 152 GPIOs) with interrupt capability and multiple alternate functions per pin.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H7R7V8H6, the STM32H7R7L8H6 provides full graphics support and higher I/O density in LQFP176, while STM32H743ZIT6 lacks FD-CAN timing compliance, secure firmware update, and hardware JPEG-making it unsuitable for new designs requiring functional safety or vision processing.

Availability

STM32H7R7L8H6 is available at Aetrix Electronics and suitable for industrial HMI panels, edge AI vision nodes, secure gateway controllers, and high-performance motor drives requiring stable component supply across multi-year production cycles.

Supply support for STM32H7R7L8H6 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 automotive-grade components since 1987.

The STM32H7R series targets cost-optimized, high-security industrial and edge AI applications, integrating essential graphics, cryptography, and FD-CAN capabilities without requiring external accelerators or security co-processors.

FAQ

What is the maximum operating frequency and core type of the STM32H7R7L8H6?

The STM32H7R7L8H6 features an Arm Cortex-M7 core rated for up to 600 MHz operation. It includes a double-precision floating-point unit (DP-FPU), memory protection unit (MPU), and 32+32 KB L1 instruction/data cache. This enables zero-wait-state execution from flash and deterministic real-time performance for demanding control and signal processing tasks.

Does the STM32H7R7L8H6 support secure firmware updates?

Yes, it supports Secure Firmware Installation/Update (SFI/SFU) through embedded Root Secure Services (RSS). This includes certificate-based authentication, secure boot with unique entry point, and Hardware Secure Storage (HSS) for cryptographic keys. The public key accelerator (PKA) performs ECC signature verification during firmware validation.

Which package type and pin count does the STM32H7R7L8H6 use?

The STM32H7R7L8H6 uses a 176-pin LQFP package (24 × 24 mm, 0.5 mm pitch), designated as LQFP176 in ST's documentation. It provides access to all 152 GPIOs with interrupt capability, full FD-CAN/Ethernet/USB peripheral routing, and thermal performance validated for continuous 600 MHz operation in industrial ambient conditions.

Can the STM32H7R7L8H6 drive an LCD-TFT display directly?

Yes, it integrates a full LCD-TFT controller supporting up to XGA resolution (1024×768) with RGB interface, HSYNC/VSYNC/DE timing signals, and 24-bit pixel data bus. It also includes Chrom-ART Accelerator (DMA2D) and NeoChrom GPU2D for hardware-accelerated UI rendering, eliminating need for external graphics ICs in HMI designs.