180 MHz Cortex-M4 with 2 MB Flash — the display-and-connectivity workhorse
With 168 I/O lines in a 216-ball TFBGA package (13x13 mm body), it targets industrial HMIs, PLCs, motor drives with display panels, and networked control nodes that need a rich peripheral set in a compact BGA footprint.
Peripheral set — what the Ethernet, LCD, and CAN interfaces mean for your system architecture
The Ethernet MAC with dedicated DMA channels lets this MCU serve as a fieldbus gateway or IIoT edge node without an external network coprocessor. The LCD controller supports up to XGA resolution with an external frame buffer, though the 256 KB internal RAM limits on-chip buffering to smaller displays — for larger panels you budget an external SDRAM on the FMC bus. The 168 GPIO count in a 216-ball BGA means roughly 48 balls are power, ground, and reserved — plan for a 6-layer or 8-layer PCB to route the BGA escape and the parallel LCD/EMI buses cleanly.
It remains a current-production device suitable for new design starts and long-run production BOMs. The STM32F429 base part number spans multiple density and package variants. For BOM resilience, the LQFP176 and LQFP144 siblings share the same core and peripheral set but differ in I/O count and package footprint — a board redesign is required to swap between BGA and QFP. No pin-compatible second source from another manufacturer exists for this exact 216-TFBGA variant.