Raspberry Pi 4 Model B Full Schematic [new]

[ BCM2711 SoC ] │ ├──► PCIe Gen 2 x1 ───► VIA VL805 USB 3.0 Controller ───► 2x USB 3.0 Ports │ ├──► RGMII Interface ──► Broadcom BCM54213PE PHY ────────► Gigabit Ethernet Port │ └──► Dual HDMI Blocks ──► 2x Micro-HDMI Outputs (4K Support) USB 3.0 Subsystem

Before looking at transistors and resistors, start here. The block diagram shows the major ICs: Raspberry Pi 4 Model B Full Schematic

Early revisions (Rev 1.1) of the Pi 4 shared a single [ BCM2711 SoC ] │ ├──► PCIe Gen