STMicroelectronics STM32H7R3R8V6

Overview

STM32H7R3R8V6 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, two USB OTG interfaces (FS/HS), and NeoChrom GPU2D for advanced graphics acceleration. It targets high-performance industrial HMI, motor control gateways, and secure edge nodes requiring real-time processing and rich UI.

For engineers reviewing the STM32H7R3R8V6 datasheet, STM32H7R3R8V6 pinout, STM32H7R3R8V6 application, or STM32H7R3R8V6 equivalent, key selection criteria include its 600 MHz M7 core with L1 cache, dual FD-CAN support for automotive diagnostics, integrated SMPS regulator for power efficiency, and hardware JPEG codec for embedded vision preprocessing.

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. Its memory subsystem includes 64 KB user flash, 620 KB SRAM (with configurable TCM/AXI split), and flexible external memory controllers supporting SDRAM, NOR/NAND, and octo-SPI HyperRAM™ at up to 200 MHz.

Security is implemented via root-of-trust boot, secure hide protection area (HDP), embedded RSS for secure firmware updates, public key accelerator (ECC-only), and NIST SP800-90B-compliant TRNG. Graphics acceleration combines NeoChrom GPU2D (rotation/scaling), Chrom-ART DMA2D, and Chrom-GRC GFXMMU for resource optimization.

Key Specifications

Pinout & Package

STM32H7R3R8V6 is packaged in VFQFPN68 (10 × 10 mm), a 68-pin very thin quad flat no-lead package with exposed thermal pad, suitable for space-constrained industrial and automotive applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance Cortex-M7 microcontroller applications.

Compared with STM32H743VI and STM32H753VI, the STM32H7R3R8V6 trades flash capacity for integrated SMPS and JPEG acceleration-making it optimal for cost-sensitive, power-constrained edge nodes where firmware size is modest and visual feedback is essential.

Availability

STM32H7R3R8V6 is available at Aetrix Electronics and suitable for industrial HMI, automotive diagnostic gateways, and smart motor drives requiring stable component supply, long-term lifecycle assurance, and qualified production-grade silicon.

Supply support for STM32H7R3R8V6 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, analog ICs, power management, and MEMS sensors for industrial, automotive, and consumer markets.

The STM32H7R series targets cost-optimized, high-performance edge applications-delivering Cortex-M7 compute density, advanced graphics, and hardware security in compact packages with integrated power conversion.

FAQ

What is the maximum operating frequency and core architecture of the STM32H7R3R8V6?

The STM32H7R3R8V6 features an Arm Cortex-M7 core running at up to 600 MHz with 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 or external memory, delivering 3196 CoreMark® performance (5.33 CoreMark®/MHz).

Does the STM32H7R3R8V6 support hardware JPEG encoding and decoding?

Yes-the device integrates a dedicated hardware JPEG codec capable of real-time encoding and decoding of JPEG images. It supports baseline JPEG format and operates independently of the CPU, freeing the M7 core for application tasks while maintaining low power consumption during image processing.

What power supply options does the STM32H7R3R8V6 provide for VCORE regulation?

The STM32H7R3R8V6 offers three VCORE supply options: an internal LDO, a high-efficiency integrated SMPS step-down converter (supporting 1.0–1.3 V output), or external VCORE supply. The SMPS reduces system power consumption by up to 30% compared to LDO-only operation, especially under medium-to-high CPU load.

How many FD-CAN interfaces does the STM32H7R3R8V6 include, and what protocols do they support?

The STM32H7R3R8V6 integrates two fully independent FD-CAN controllers compliant with ISO 11898-1:2015 and ISO 11898-7:2018. Each supports Classical CAN, CAN FD (up to 5 Mbps data phase), and time-triggered communication (TTCAN) with hardware message filtering, FIFO buffering, and loopback self-test modes.