Raspberry Pi 4 Model B Full Schematic New! Jun 2026
A: No. The antenna is implemented as a PCB trace and is not detailed in the schematic. For RF development, you should use the CM4 or an external USB Wi‑Fi adapter.
Practical notes:
is a highly versatile single-board computer (SBC), but engineers and developers often encounter a major challenge: . To protect intellectual property, Raspberry Pi Ltd. releases only a Reduced Schematic via the Raspberry Pi Product Information Portal . This official document covers consumer-facing I/O interfaces, power delivery blocks, and basic pinout mapping, but excludes the core proprietary board traces, full Bill of Materials (BOM), and internal System-on-Chip (SoC) logic paths.
Powering a high-performance SBC requires a robust power delivery network (PDN). The Raspberry Pi 4 schematic introduces a sophisticated Power Management Integrated Circuit (PMIC) to handle complex voltage rails. The MaxLinear MxL7704 PMIC Raspberry Pi 4 Model B Full Schematic
Raspberry Pi 4 Model B Go to product viewer dialog for this item.
Since the schematic reveals that the USB controller is attached via PCIe, hackers have used this knowledge to remove the VL805 chip entirely. By soldering a custom bridge PCB to the pads where the VL805 once was, the Pi 4 can be turned into a native PCIe host. This allows users to connect standard PCIe cards (like NVMe SSDs or external Ethernet controllers) directly to the Broadcom processor, vastly improving data throughput. This is only possible because the schematic details the exact pinout of the PCIe lanes and the clock lines going to the VL805.
The GPU subsystem drives the dual-display capabilities. The schematic outlines the routing to two independent micro-HDMI ports, supporting up to 4K resolution at 60Hz or dual 4K displays at 30Hz. Practical notes: is a highly versatile single-board computer
From the infamous single resistor that broke USB-C compliance to the accidental PCIe bus waiting to be hacked, the schematic tells the story of the Pi 4. As the ecosystem moves toward KiCad as the standard for Pi 5 and beyond, learning to navigate these schematics is no longer just a skill for electrical engineers—it is a necessity for any maker serious about hardware hacking.
Help you locate specific for a particular project. Raspberry Pi 4 Model B specifications
Includes dual-band 2.4/5.0 GHz wireless LAN and Bluetooth 5.0. 4. Power Management and PoE power delivery blocks
The Pi 4 offers significantly faster performance, largely due to its updated RAM options.
: Interface paths for camera and display flex cables. Raspberry Pi 4 Model B specifications
