STMicroelectronics STM32H7R7I8K6

Overview

STM32H7R7I8K6 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, motor control gateways, and edge AI inference nodes.

For engineers reviewing the STM32H7R7I8K6 datasheet, STM32H7R7I8K6 pinout, STM32H7R7I8K6 application, or STM32H7R7I8K6 equivalent, key selection criteria include FD-CAN timing compliance, TCM RAM allocation for real-time task isolation, JPEG codec hardware support, and VFQFPN68 package thermal performance under sustained 600 MHz operation.

Technical Context

This MCU integrates a dual-bank Arm Cortex-M7 core with tightly coupled memory (TCM) architecture enabling zero-wait-state execution, L1 instruction/data caches (32+32 KB), and deterministic interrupt latency critical for real-time motion control loops. It supports concurrent high-bandwidth peripherals including dual USB OTG (FS/HS), Ethernet MAC with DMA, and two 12-bit ADCs sampling at up to 5 MSPS.

The device implements ST's secure boot chain with Root of Trust via HDP, embedded RSS services for SFI/SFU, and hardware accelerators for CORDIC, HASH, PKA (ECC verification only), and JPEG encoding/decoding - all coordinated through a unified clock/reset controller supporting multiple PLL configurations and dynamic voltage scaling.

Key Specifications

Pinout & Package

STM32H7R7I8K6 is packaged in VFQFPN68 (10 × 10 mm, 0.5 mm pitch), a thermally enhanced quad flat no-lead package suitable for space-constrained industrial and automotive applications requiring efficient heat dissipation and high I/O density.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H7R7I8K6, the K7 variant adds extended temperature tolerance without performance trade-offs, while the H753VI offers greater flash capacity at the cost of missing JPEG and SMPS - making the R7 series optimal for thermally constrained, vision-augmented edge nodes.

Availability

STM32H7R7I8K6 is available at Aetrix Electronics and suitable for industrial HMIs, automotive gateways, and edge AI vision nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32H7R7I8K6 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 components for industrial, automotive, and consumer markets.

The STM32H7R series targets cost-sensitive, high-performance embedded applications demanding graphics acceleration, FD-CAN, and hardware security - bridging the gap between mainstream and premium H7 lines with optimized silicon area and power efficiency.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32H7R7I8K6 achieves 600 MHz via its Arm Cortex-M7 core with dual 32 KB L1 instruction and data caches, allowing zero-wait-state execution from embedded flash. This requires proper VCAP capacitor placement (2.2 µF) and stable SMPS regulation; the core voltage is dynamically scaled using the integrated step-down converter.

Does this MCU support hardware-accelerated JPEG decoding?

Yes - the STM32H7R7I8K6 includes a dedicated hardware JPEG codec supporting both encoding and decoding of baseline JPEG images. It handles YUV422 format and processes a 1080p frame in under 15 ms, offloading the Cortex-M7 core and reducing system memory bandwidth requirements significantly.

How many FD-CAN interfaces does the STM32H7R7I8K6 provide?

The STM32H7R7I8K6 provides two fully independent FD-CAN controllers compliant with ISO 11898-1:2015, each supporting data rates up to 5 Mbit/s in the data phase. Both include dedicated Tx FIFOs, Rx filters, and timestamping units for precise message synchronization in automotive and industrial networks.

What package type is used for the STM32H7R7I8K6 and what are its thermal advantages?

The STM32H7R7I8K6 uses the VFQFPN68 package (10 × 10 mm, 0.5 mm pitch) with an exposed thermal pad. Its low thermal resistance (θ_JA ≈ 42 °C/W) enables reliable operation at 600 MHz under continuous load in compact industrial enclosures without forced airflow - validated per JEDEC JESD51-2 standards.