STMicroelectronics STM32H7R3Z8J6

Overview

STM32H7R3Z8J6 from STMicroelectronics is a high-performance 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. It targets real-time industrial HMI, motor control gateways, and secure edge nodes requiring deterministic execution and integrated connectivity.

For engineers reviewing the STM32H7R3Z8J6 datasheet, STM32H7R3Z8J6 pinout, STM32H7R3Z8J6 application, or STM32H7R3Z8J6 equivalent, key selection criteria include its 600 MHz M7 core with L1 cache, dual FD-CAN support, 2×12-bit ADCs (5 MSPS), hardware JPEG codec, and TFBGA100 (A08Q) package with 100-ball 0.8 mm pitch.

Technical Context

The device integrates a dual-bank Arm Cortex-M7 core with MPU, DP-FPU, and 32+32 KB L1 instruction/data caches enabling zero-wait-state execution from flash or external memory. Its memory architecture 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™.

Security is implemented via root-of-trust boot, secure hide protection area (HDP), embedded RSS for secure firmware updates, and dedicated accelerators for HASH, PKA (ECC verification only), and NIST SP800-90B-compliant RNG. Graphics subsystem combines NeoChrom GPU2D, Chrom-ART DMA2D, and Chrom-GRC for optimized 2D rendering and display pipeline efficiency.

Key Specifications

Pinout & Package

STM32H7R3Z8J6 is packaged in TFBGA100 (A08Q), 100-ball, 0.8 mm pitch, 8 × 8 mm body size, with 152 I/Os capable of interrupt generation. Pin functions are defined per datasheet section 4.1 (Pin descriptions) and alternate function mapping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H7R3Z8J6, the I8K6 variant trades compactness for prototyping flexibility, while the R7Z8J6 adds cryptographic IP at no package penalty-making it preferable for security-first deployments despite higher cost.

Availability

STM32H7R3Z8J6 is available at Aetrix Electronics and suitable for industrial HMI, motor control gateways, and secure IoT sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32H7R3Z8J6 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.

The STM32H7R series targets cost-sensitive, high-performance embedded applications demanding real-time responsiveness, graphics capability, and robust security-all within a single-chip solution optimized for industrial and edge AI endpoints.

FAQ

What is the maximum operating frequency and core configuration of STM32H7R3Z8J6?

The STM32H7R3Z8J6 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 caches. It achieves 3196 CoreMark® (5.33 CoreMark®/MHz) and supports zero-wait-state execution from embedded flash or external memory.

Does STM32H7R3Z8J6 support hardware encryption acceleration?

No-STM32H7R3Z8J6 does not include AES or SHA cryptographic accelerators. It provides PKA for ECC verification only, HASH for message digest, and TRNG compliant with NIST SP800-90B. For full AES-128/256 and SHA-256 acceleration, select the STM32H7R7Z8J6 variant.

What package type and ball pitch does STM32H7R3Z8J6 use?

STM32H7R3Z8J6 uses the TFBGA100 package (order code A08Q), with 100 balls arranged in a 10 × 10 grid, 0.8 mm pitch, and 8 × 8 mm body size. This package supports fine-pitch PCB routing and meets ECOPACK2 environmental compliance standards.

Can STM32H7R3Z8J6 execute code directly from external octo-SPI memory?

Yes-STM32H7R3Z8J6 supports eXecution-In-Place (XiP) from octo-SPI interfaces, including HyperFlash™ and serial PSRAM/NOR. The XSPI controller operates up to 200 MHz with configurable latency and prefetch buffer, enabling deterministic real-time code fetch without internal flash constraints.