480 MHz Cortex-M7 in a 100-ball BGA — what you're getting
The STM32H742VIH6TR is STMicroelectronics' high-performance 32-bit ARM Cortex-M7 MCU from the STM32H7 series, clocked at 480 MHz. It packs 2 MB of Flash and 692K x 8 of RAM, with 82 I/Os brought out to a 100-TFBGA package measuring 8x8 mm. This is the part you pick when you need the M7's DSP and FPU throughput but don't need the extra peripherals of the larger H743 — same core, same speed, slightly trimmed feature set.
2 MB Flash, 692K RAM — sizing the memory budget
The 2 MB program Flash (2M x 8) is generous for a single-core M7 — enough for a full RTOS, TCP/IP stack, and a graphics or audio processing pipeline without external memory. The 692K x 8 RAM (roughly 692 KB) covers frame buffers, audio buffers, and heap for dynamic allocation.
100-TFBGA — no field swap, plan the rework
The 100-TFBGA (8x8 mm) is a fine-pitch BGA. This is not a field-swappable part — you need a reflow oven, stencil, and X-ray inspection. The 82 I/Os are densely packed, so the PCB layout needs via-in-pad or microvias for fanout.
Connectivity and peripherals — what's on the bus
The peripheral set includes Ethernet, USB OTG, dual CAN, multiple SPI/I²C/UART, Quad-SPI, SAI (serial audio), SPDIF, and an LCD interface. Data converters: 36-channel 16-bit ADC and 2-channel 12-bit DAC. Internal oscillator is on-chip, so you can boot without an external crystal for basic operation. The brown-out detect, POR, and watchdog are standard — no external supervisor needed for most designs.
No last-time-buy notice, no phase-out pressure. You can design it into new production runs and expect multi-year availability through standard distribution.