Raspberry Pi 4 Model B Full Schematic ~repack~ -

Features a resonant PCB cavity antenna embedded directly into the board layers, reducing the need for an external whip antenna. MicroSD Card Slot and eMMC Interface

The central component of the schematic is the Broadcom BCM2711 SoC. Moving away from the older 28nm processes, the BCM2711 is fabricated on a 28nm silicon node but utilizes much higher performance IP blocks.

The heart of the PDN is the MaxLinear MxL7704 PMIC. It communicates with the Broadcom SoC via an I2Ccap I squared cap C Raspberry Pi 4 Model B Full Schematic

For those looking to dive deeper than the basic schematics, you can reference these authoritative technical documents:

The standard 40-pin header remains backwards compatible but adds new multiplexed functions. REDUCED SCHEMATICS - Raspberry Pi 18 Jun 2019 — Features a resonant PCB cavity antenna embedded directly

Practical notes:

The Raspberry Pi 4 Model B is a remarkable piece of engineering, and the available documentation—imperfect though it may be—provides enough transparency to enable a vast ecosystem of hardware innovation. Whether you are a seasoned embedded engineer or a curious maker, the schematic is your first step toward truly understanding what makes the Pi 4 tick. The heart of the PDN is the MaxLinear MxL7704 PMIC

Unlike previous iterations where Ethernet was funneled through a USB hub, the Pi 4 features a dedicated native Gigabit Ethernet MAC inside the BCM2711.

At the heart of the Raspberry Pi 4 Model B schematic is the Broadcom BCM2711 System-on-Chip (SoC).

The RAM is stacked on top of the SoC using technology, which saves board space. The schematic does not show the internal routing to the RAM chips; only the power and control signals are exposed. Available RAM sizes are 1 GB, 2 GB, 4 GB, and later 8 GB.