The STM32H7B3IIT6: The 176-LQFP package provides 119 I/O and peripherals including dual CAN-FD, USB OTG, Ethernet, and a parallel camera interface, on a single supply rail from 1.62 V to 3.6 V.
1.4 MB RAM — staging area for display and data
The 1.4 MB RAM can hold a full frame buffer for a 480x272 RGB display at 16-bit colour and still leave over a megabyte for application data and communication stacks.
If you're building a panel controller or a medical peripheral with a five-year production run, this part fits without the supply chain headache of an NRND part.
Pin-compatible family members — what to cross-shop
The STM32H7B3IIT6 shares the 176-LQFP footprint with other STM32H7 devices. The H7B3 runs at 280 MHz with 2 MB Flash and 1.4 MB RAM.