STMicroelectronics STM32H7R7A8I6

Overview

STM32H7R7A8I6 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, Ethernet MAC, and NeoChrom GPU2D for advanced graphics acceleration - deployed in industrial HMIs, real-time motor control gateways, and secure IoT edge nodes.

For engineers reviewing the STM32H7R7A8I6 datasheet, STM32H7R7A8I6 pinout, STM32H7R7A8I6 application, or STM32H7R7A8I6 equivalent, key selection criteria include its 600 MHz M7 core with L1 cache, dual FD-CAN support for automotive diagnostics, hardware JPEG codec, and TFBGA100 (8×8 mm) package with 100 I/Os and 1.71–3.6 V supply range.

Technical Context

The device integrates a dual-bank Arm Cortex-M7 core with MPU, DP-FPU, and 32+32 KB L1 instruction/data cache enabling zero-wait-state execution from flash or external memory. It supports deterministic real-time operation via 64+64 KB TCM RAM and dual-port DMA controllers with FIFO and linked-list capability.

Security is implemented through root-of-trust boot, secure hide protection area (HDP), embedded root secure services (RSS) for SFI/SFU, public key accelerator (ECC verification only), and NIST SP800-90B-compliant TRNG. Graphics acceleration leverages NeoChrom GPU2D, Chrom-ART (DMA2D), and Chrom-GRC (GFXMMU) for optimized resource usage.

Key Specifications

Pinout & Package

STM32H7R7A8I6 is housed in a TFBGA100 package (8 × 8 mm, 0.8 mm pitch, A08Q marking), with 100 solder balls arranged in a 10×10 grid. Ball pitch and thermal pad design comply with JEDEC MO-275VB standard for industrial reflow compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H7R7I6K6, STM32H7R7A8I6 offers tighter thermal envelope and lower BOM cost in TFBGA100, while STM32H7A3ZIT6 trades FD-CAN and GPU2D for larger flash and crypto - making STM32H7R7A8I6 optimal for compact, graphics- and CAN-rich edge nodes.

Availability

STM32H7R7A8I6 is available at Aetrix Electronics and suitable for industrial HMIs, automotive diagnostic tools, and secure edge AI nodes requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production ramp.

Supply support for STM32H7R7A8I6 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 ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32H7R series targets cost-optimized, high-performance secure MCUs with integrated graphics and FD-CAN - designed specifically for compact, feature-rich edge devices needing real-time responsiveness and robust security without external co-processors.

FAQ

What is the maximum operating frequency and core type of STM32H7R7A8I6?

The STM32H7R7A8I6 features an Arm Cortex-M7 core rated for up to 600 MHz operation, supported by 32+32 KB L1 instruction/data cache and 64+64 KB TCM RAM. Its CoreMark score is 3196 (5.33 CoreMark/MHz), verified per DS14360 Rev 6 Section 3.1. This frequency is achievable across the full industrial temperature range (–40°C to +85°C) with appropriate power supply and cooling.

Does STM32H7R7A8I6 support both USB OTG Full-Speed and High-Speed modes?

Yes - it integrates two independent USB OTG controllers: one full-speed (OTG_FS) with embedded PHY and one high-speed (OTG_HS) with embedded PHY supporting 480 Mbps. Both support host/peripheral/device roles and include dedicated USB power management with internal 3.3 V regulator, as confirmed in Section 3.45–3.46 of DS14360 Rev 6.

What graphics acceleration IP is included and how is it applied in practice?

The device includes NeoChrom GPU2D (for rotation, scaling, texture mapping), Chrom-ART Accelerator (DMA2D for 2D drawing), and Chrom-GRC (GFXMMU for memory optimization). In practice, these enable hardware-accelerated UI rendering on XGA displays without CPU load - e.g., smooth animated transitions in Qt-based HMIs or overlaying JPEG-decoded camera feeds onto live video streams.

How does the FD-CAN implementation differ from classical CAN in STM32H7R7A8I6?

It implements two fully compliant ISO 11898-1:2015 FD-CAN controllers supporting data rates up to 5 Mbps, flexible data-length up to 64 bytes, and error confinement classes. Unlike classical CAN, FD-CAN provides higher bandwidth and deterministic timing for firmware updates, ECU diagnostics (UDS), and safety-critical messaging - validated in Section 3.44 and Table 3 of DS14360 Rev 6.