216 MHz Cortex-M7 — throughput for graphics and real-time control
The STMicroelectronics STM32F746NEH6 is a 32-bit ARM Cortex-M7 single-core MCU clocked at 216 MHz, with 512 KB Flash and 320 KB SRAM. The core includes a double-precision FPU and a single-cycle multiplier, so the 216 MHz clock delivers sustained throughput for floating-point sensor fusion, audio processing, or driving a TFT display through the built-in LCD interface. The 168 I/O lines and connectivity set — Ethernet, USB OTG, CAN, SPI, I²C, SAI, SPDIF-Rx — make it a natural fit for an HMI panel, industrial gateway, or IoT edge node that needs both wired networking and peripheral expansion.
Memory map and bus architecture — no dead cycles on the back-to-back read
The 320 KB SRAM is split across multiple buses (ITCM, DTCM, AXI), so the Cortex-M7 can fetch instructions from Flash on the AXI bus while the DMA engine writes ADC data into DTCM — no arbitration stalls. The 512 KB Flash runs with ART Accelerator (adaptive real-time memory accelerator) that gives zero-wait-state execution up to 216 MHz for typical code. If your application needs more SRAM for frame buffers, the FMC (flexible memory controller) on the EBI/EMI interface can map external SDRAM or SRAM, though the BGA package limits prototyping options compared to an LQFP variant.
Lifecycle and sourcing
The lifecycle record carries an EOL-hot flag alongside an Active status, which means production is still running but the end-of-life transition may be in progress. For a BOM line that needs multi-year supply, confirm the last-time-buy window with your distributor. This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.