Raspberry Pi 4 Model B Full Schematic __top__ -

To support dual-display output up to 4K resolutions, the display architecture undergoes a massive hardware upgrade. Dual Micro-HDMI Ports

[ 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

Includes overvoltage and thermal shutdown protection. Memory and High-Speed I/O

The Wi-Fi subsystem communicates with the BCM2711 via a dedicated SDIO (Secure Digital Input Output) interface. The Bluetooth module utilizes a high-speed UART interface. Raspberry Pi 4 Model B Full Schematic

Raspberry Pi 4 Model B Full Schematic: A Complete Hardware Reference Guide

The VL805 translates the PCIe signals into two distinct USB 3.0 SuperSpeed ports.

At the center of the schematic sits the Broadcom BCM2711 SoC. Unlike its predecessors, this chip uses a 28nm process. It features a quad-core Cortex-A72 architecture. This shift allows for faster clock speeds and better thermal efficiency. Quad-core 64-bit ARM v8. Speed: 1.5GHz (upgradable via firmware). Video: VideoCore VI supports OpenGL ES 3.x. Power Delivery and Management (PMIC) To support dual-display output up to 4K resolutions,

Comprehensive Guide to the Raspberry Pi 4 Model B Full Schematic

+---------------------------------------------+ | Broadcom BCM2711 | +---------------------------------------------+ || || [TMDS Data / Clock] [TMDS Data / Clock] || || +--------------+ +--------------+ | ESD Standard | | ESD Standard | | Protection | | Protection | +--------------+ +--------------+ || || [Micro-HDMI 0] [Micro-HDMI 1] Key Components in the Video Circuit:

The schematic shows two micro-HDMI ports. These are driven by the SoC's upgraded display pipeline. It supports two 4K displays simultaneously at 30Hz, or a single 4K display at 60Hz. 2x Micro-HDMI. Audio: Digital audio is embedded in the HDMI signal. The Bluetooth module utilizes a high-speed UART interface

Multimedia routing on the Pi 4 schematic reflects its dual-display capabilities. Dual Micro-HDMI Ports

The official documentation serves as a high-level technical reference for engineers. Key sections typically covered in these diagrams include: