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Raspberry Pi计算模块4 IO板产品简介(cm4io-product-brief).pdf
Raspberry Pi Compute Module 4
IO Board
Published in October 2020
by Raspberry Pi Trading Ltd.
www.raspberrypi.org
Overview
The Compute Module 4 IO Board is a companion board for Raspberry Pi
Compute Module 4 (supplied separately). It is designed for use both as a
development system for Compute Module 4 and as an embedded board
integrated into end products.
The IO board is designed to allow you to create systems quickly using
off-the-shelf parts such as HATs and PCIe cards, which might include NVMe,
SATA, networking, or USB. The major user connectors are located along one
side to make enclosures simple.
The Compute Module 4 IO Board also provides an excellent way to prototype
systems using Compute Module 4.
2
Raspberry Pi Compute Module 4 IO Board
Specification
• CM4 socket: suitable for all variants of Compute Module 4
• Standard Raspberry Pi HAT connectors with PoE support
• Standard PCIe Gen 2 x1 socket
• Real-time clock (RTC) with battery backup
• Dual HDMI connectors
• Dual MIPI camera connectors
• Dual MIPI display connectors
• Gigabit Ethernet socket supporting PoE HAT
• On-board USB 2.0 hub with 2 USB 2.0 connectors
• SD card socket for Compute Module 4 variants without eMMC
• Support for programming eMMC variants of Compute Module 4
• PWM fan controller with tachometer feedback
Input power:
12V input, +5V input with reduced functionality
(power supply not supplied)
Dimensions:
Production lifetime:
Compliance:
160 mm × 90 mm
The Raspberry Pi Compute Module 4 IO Board will
remain in production until at least January 2028
For a full list of local and regional product approvals,
please visit
www.raspberrypi.org/documentation/hardware/
raspberrypi/conformity.md
3
Raspberry Pi Compute Module 4 IO Board
Physical specifications
Note: all dimensions in mm
WARNINGS
•
Any external power supply used with the Raspberry Pi Compute Module 4 IO Board shall comply with
relevant regulations and standards applicable in the country of intended use.
This product should be operated in a well-ventilated environment, and if used inside a case, the case
should not be covered
Whilstinuse,thisproductshouldbeplacedonastable,flat,non-conductivesurface,andshouldnotbe
contacted by conductive items.
The connection of incompatible devices to the Compute Module 4 IO Board may affect compliance,
result in damage to the unit, and invalidate the warranty.
All peripherals used with this product should comply with relevant standards for the country of use and
be marked accordingly to ensure that safety and performance requirements are met. These articles
include but are not limited to keyboards, monitors, and mice when used in conjunction with the Compute
Module 4 IO Board.
The cables and connectors of all peripherals used with this product must have adequate insulation so
that relevant safety requirements are met.
•
•
•
•
•
SAFETY INSTRUCTIONS
To avoid malfunction or damage to this product, please observe the following:
• Do not expose to water or moisture, or place on a conductive surface whilst in operation.
•
Do not expose to heat from any source; the Raspberry Pi Compute Module 4 IO Board is designed for
reliable operation at normal ambient temperatures.
Take care whilst handling to avoid mechanical or electrical damage to the printed circuit board
and connectors.
Whilst it is powered, avoid handling the printed circuit board, or only handle it by the edges to minimise
the risk of electrostatic discharge damage.
•
•
4
Raspberry Pi Compute Module 4 IO Board
TheAdoptedTrademarksHDMI,HDMIHigh-DefinitionMultimediaInterface,andtheHDMILogoaretrademarksor
registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry Pi Foundation
www.raspberrypi.org
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