Raspberry Pi 4 Model B Full Schematic !new! Jun 2026

For hardware developers, the 40-pin GPIO (General Purpose Input/Output) header is the gateway to external electronics. The Raspberry Pi 4 schematic exposes several upgraded capabilities across these pins:

In previous Pis, all USB traffic shared a single USB 2.0 bus with the Ethernet controller. The Pi 4 schematic exposes a single lane of directly out of the BCM2711 SoC. This lane is routed to a Via Labs VL805 USB 3.0 Host Controller. This dedicated PCIe link provides up to 4 Gbps (500 MB/s) of real-world throughput, allowing the USB 3.0 ports to run at maximum speed simultaneously. Dual-Display Output (Micro-HDMI) Raspberry Pi 4 Model B Full Schematic

: Quad-core Cortex-A72 (ARM v8) 64-bit SoC running at 1.5GHz or 1.8GHz depending on the revision. For hardware developers, the 40-pin GPIO (General Purpose

have not been publicly released due to proprietary design elements, the official Raspberry Pi 4 Reduced Schematics provide a comprehensive overview of the board's primary hardware architecture and signal routing. Core Hardware Components Raspberry Pi 4 Model B This lane is routed to a Via Labs VL805 USB 3

Essential for designing enclosures, showing exact port placements and hole dimensions.

The official Raspberry Pi 4 Model B Reduced Schematic is the primary technical reference for the board's electrical architecture. While "Full" schematics are often restricted due to proprietary component details, the reduced version covers all major user-accessible subsystems including power, GPIO, and connectivity. Raspberry Pi 1. Power Management Unit (PMU) The heart of the Pi 4's power system is the MaxLinear MXL7704 : Receives 5V DC (3A minimum) via the USB-C connector or the 5V GPIO pins. Regulation