550 MHz Cortex-M7 — the performance tier for real-time control
The STMicroelectronics STM32H723ZGI6 is a 32-bit microcontroller built around the ARM Cortex-M7 core running at 550 MHz, placing it in the high-performance tier of the STM32H7 family. This part is designed for industrial control, motor drives, communication gateways, and audio processing applications that demand DSP and FPU throughput alongside deterministic real-time response.
1 MB Flash and 564 KB SRAM — firmware and data budget
The 1 MB Flash is sized for complex firmware stacks — RTOS, TCP/IP stack, file system, and application code — without needing external memory for most designs. The 564 KB SRAM (organized as 564K x 8) supports large data buffers for Ethernet frames, audio samples, or sensor logs. For a firmware engineer, this means the typical industrial gateway or motor-drive application fits on-chip; external SDRAM or NOR Flash is optional, not mandatory.
Connectivity — Ethernet, CAN, USB OTG, and more
The STM32H723ZGI6 includes an Ethernet MAC (supporting 10/100 Mbit/s), two CAN interfaces, USB OTG (host/device), plus multiple SPI, I²C, UART/USART, SAI, and SPDIF interfaces.
144-UFBGA package — footprint and layout considerations
Housed in a 144-ball UFBGA measuring 7x7 mm, this package delivers 114 I/Os in a compact footprint. The fine-pitch BGA requires a multi-layer PCB with via-in-pad or microvias for routing, which adds to board cost compared to a QFP.
Active lifecycle — no end-of-life clock ticking
The STM32H7 series has broad distribution support, and the part is ROHS3 compliant.
