Supplies the PCIe controller and the Gigabit Ethernet PHY. USB-C CC Pin Revision Note
The Ethernet Media Access Controller (MAC) connects directly to an external physical layer (PHY) chip via an RGMII interface. 2. Power Management Infrastructure (PMIC)
The primary source is the page. Besides the PDF linked above, the official website also publishes product briefs , mechanical drawings , and compliance documents . The schematics are always labelled “Reduced” to avoid confusion. Raspberry Pi 4 Model B Full Schematic
reveals why this board was such a massive leap forward for single-board computers (SBCs). Unlike hobbyist boards that rely on simple power paths, the Pi 4 schematic details a sophisticated architecture designed to handle dual 4K displays and high-speed data. 1. The Core: Broadcom BCM2711 SoC At the heart of the schematic is the Broadcom BCM2711
Previous Raspberry Pi models routed Ethernet through a shared USB hub, limiting speeds to roughly 300 Mbps. The Pi 4 schematic utilizes an onboard . It interfaces directly with the BCM2711 via a dedicated RGMII (Reduced Gigabit Media Independent Interface) bus, unlocking unthrottled 1000 Mbps throughput. Wireless Module (Cypress CYW43455) Supplies the PCIe controller and the Gigabit Ethernet PHY
Raspberry Pi 4 Model B Go to product viewer dialog for this item. Full Schematic: A Comprehensive Guide to the Hardware The Raspberry Pi 4 Model B
The central hub of the board, featuring a quad-core 64-bit ARM Cortex-A72 processor. Power Management Infrastructure (PMIC) The primary source is
The schematic reveals how the Pi 4 achieves its massive leap in I/O performance over the Pi 3B+: Raspberry Pi 4 Model B specifications