Raspberry Pi Compute Module 4 IO USB 3.0 Board

1 Raspberry Pi Compute Module 4 IO USB Board Colophon 2022 Raspberry Pi Ltd The documentation around the Raspberry Pi Compute Module 4 is licensed under a Creative Commons Attribution- NoDerivatives International (CC BY-ND). build-date: 2022-06-07. build-version: githash: 66d4b42-clean Legal disclaimer notice TECHNICAL AND RELIABILITY DATA FOR Raspberry PI PRODUCTS (INCLUDING DATASHEETS) AS MODIFIED FROM. TIME TO TIME ( RESOURCES ) ARE PROVIDED BY Raspberry PI LTD ( RPL ) "AS IS" AND ANY EXPRESS OR IMPLIED. WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.

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6 1. 1. Introduction.. 3. 2. Features.. 4. CM4 Module connectors .. 4. PSU input .. 4. Dual full-size HDMI connectors.. 4. Gigabit Ethernet RJ45.. 5. Micro USB connector .. 5. microSD card socket.. 5. USB3 xHCI host controller .. 5. Fan connector .. 5. Dual DSI display connectors (22-pin pitch cable) .. 6. Dual CSI-2 camera connectors (22-pin pitch cable) .. 6. Raspberry Pi HAT connector .. 6. Real time clock (RTC) .. 6. Jumpers .. 6. LEDs .. 7. 3. Circuit diagram .. 8. Table of contents 2. Raspberry Pi Compute Module 4 IO USB Board Chapter 1.

7 Introduction Figure 1. Render of the Raspberry Pi Compute Module 4 IO USB Board . The Raspberry Pi Compute Module 4 IO USB Board (CM4IO-USB3) is designed to assist in the development of products that make use of Raspberry Pi Compute Module 4. The Raspberry Pi Compute Module 4 IO USB Board contains many of the interfaces that Raspberry Pi 4 Model B has, and for general usage you should refer to the Raspberry Pi 4 Model B documentation. The significant difference between the CM4IO and CM4IO-USB3 boards is the removal of the PCIe socket and the addition of an USB3 xHCI host controller.

8 IMPORTANT. The Raspberry Pi Compute Module 4 IO USB Board in this application note is a reference design, not a product. Users should understand the design and use the relevant sections in their own design. Schematics and layout files are available for KiCad at KiCad is a free, open source suite of tools for designing PCBs and can be found at Chapter 1. Introduction 3. Raspberry Pi Compute Module 4 IO USB Board Chapter 2. Features Accepts the complete range of CM4 modules External +12V PSU. 2 full-size HDMI connectors Gigabit Ethernet RJ45 with PoE support Micro USB socket for updating CM4.

9 MicroSD card socket for CM4 Lite modules USB3 xHCI host controller with two ports and a connector for two ports Standard fan connector External power connector (+5V, +12V). 2 MIPI DSI display FPC connectors (22-pin pitch cable). 2 MIPI CSI-2 camera FPC connectors (22-pin pitch cable). Raspberry Pi HAT connector RTC with battery socket and ability to wake up CM4. Jumpers to disable features, wireless, EEPROM writing CM4 Module connectors The two CM4 Module connectors are positioned so the on- Board wireless antenna is at the edge of the Board for best wireless performance.

10 PSU input The main PSU input (J19) is a DC tip positive +12V input. There is an on- Board +12V to +5V DC-DC converter to power the CM4. There is also an on- Board +5V to + DC-DC converter PSU which is only used for the xHCI USB. controller. The +12V input feeds the fan connector directly. If this isn't being used then a wider input supply is possible (+ to +28V). With a +12V supply via the DC barrel jack, an external PSU connector (J20 with +5V and +12V) is provided. You should ensure that the PSUs aren't overloaded. The J20 mating connector is known as "Berg" connector, part number AMP/TE.