WIKI: www.waveshare.com/wiki/CM5-IO-BASE-B

Mini Base Board (B) designed for Raspberry Pi Compute Module 5, Onboard EEPROM And Encryption Chip

Mini Base Board for Compute Module 5

suitable for evaluating the Raspberry Pi CM5 or being integrated into end products

Powerful functions in a credit card sized body

Specifications

Connecting with Compute Module 5

standard CM5 socket and color-coded Raspberry Pi 40PIN GPIO header
suitable for Compute Module 5 Lite/eMMC series module

Compact, yet Complete

onboard multiple connectors, more convenient to use

Onboard EEPROM and encryption chip

Provides fast and secure symmetric authentication

Access to USB HDMI Adapter

* for reference only, the CM5 and USB HDMI Adapter are NOT included.

Connecting to cooling fan

* for reference only, the cooling fan is NOT included.

Application example

for reference only, the CM5, displays, and cameras are NOT included.

What's On Board

1. CM5 socket
   suitable for all variants of Compute Module 5
2. 40PIN GPIO header
   for connecting various HAT / HAT+ modules
3. Power input/Programming
   5V / 5A power supply, or used for eMMC burning
4. Encryption chip (ATSHA204)
   Supports fast and secure symmetric authentication
5. PSW Power button
   Long press to force power off, short press to soft power off or on
6. STAT LED
   Dual-color status LED
7. BOOT button
   Press before powering on and release after powering on to enter the burning mode
8. Dual MIPI interfaces
   for connecting DSI displays and CSI cameras
9. HDMI0 connector
   HDMI0 port, supports 4K output
10. USB 3.2 Gen1 ports
    2x USB 3.2 Gen1 high-speed ports, supports 5Gbps synchronous operation
11. RJ45 Gigabit Ethernet port
    Supports 10M / 100M / 1000M network access

12. 4PIN JST-SH PWM Fan header
    for connecting cooling fan, 5V power supply
13. TF card slot
    for connecting a TF card with pre-burnt image (Lite variant ONLY)
14. IO-VREF selection
    CM5 IO logic level: 3.3V (default) or 1.8V
15. Other function pins
    WIFI / BT hardware disable or write protection
16. HDMI1 FFC connector
    HDMI1 port, supports 4K output, can be connected through an adapter
17. USB 2.0 FFC connector
    can be connected through an adapter
18. RTC battery holder
    Supports CR / ML1220 button cell
19. M.2 M KEY
    Supports 2230/2242 NVMe Solid State Drives and booting Pi5 from solid state drive
20. I2C selection
    switching I2C0 and I2C1 (by default) for the encryption chip and EEPROM
21. CAT24C32
    EEPROM chip

Outline dimensions