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4 layers97.6 × 75.2 mmCM4IO2, the printed circuit board in 3D
Size
97.6 × 75.2 mm
Copper layers
4
Thickness
1.6 mm
Parts
81
Nets
238
Pads
569
Tracks, vias
1,197, 202
Pours
4
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
7 Mar 2026
Updated
7 Mar 2026

Overview

CM4IO2 is an open-source printed circuit board by Lystea11, from the Lystea11/Metaframe-files repository on GitHub. It is a 4-layer board of 97.6 × 75.2 mm with 81 parts on 238 nets, routed with 1,197 tracks and 202 vias.

It is built around the LAN7800/Y9X, UPD720201K8-701-BAC-A and W25Q16JVSSIQ, with the USBLC6-2SC6, 93AA66C-I/MS and AMS1117-3.3 among its other parts. Its parts include 38 capacitors, 24 resistors, 11 ICs, 4 connectors and 2 crystals. It belongs with the Raspberry Pi (Linux) boards of this library.

Main components

11

Parts

81
QtyValueFootprintReferences
190.1µFCapacitor_SMD:C_0402_1005MetricC1, C12, C13, C16, C19, C20, C21, C22, C25, C26, C27, C29, C31, C32, C33, C34 +3
1210kΩResistor_SMD:R_0603_1608MetricR3, R4, R5, R6, R7, R9, R14, R15, R17, R18, R19, R25
41µFCapacitor_SMD:C_0603_1608MetricC10, C11, C14, C15
4330ΩResistor_SMD:R_0603_1608MetricR21, R22, R23, R24
30.1µFCapacitor_SMD:C_0603_1608MetricC17, C18, C37
31.0µF low-ESRCapacitor_SMD:C_0603_1608MetricC23, C24, C30
218pFCapacitor_SMD:C_0402_1005MetricC4, C5
22250013-4footprints:BEL_2250013-4J1, J3
222pFCapacitor_SMD:C_0402_1005MetricC2, C3
25.1kΩResistor_SMD:R_0603_1608MetricR11, R12
2USBLC6-2SC6Package_TO_SOT_SMD:SOT-23-6U5, U8
11.0 µFCapacitor_SMD:C_0603_1608MetricC6
11.60kΩ ±1%Resistor_SMD:R_0603_1608MetricR2
1100kΩResistor_SMD:R_0603_1608MetricR20
110nFCapacitor_SMD:C_0603_1608MetricC7
110µFCapacitor_SMD:C_0603_1608MetricC8
112Ω±1%Resistor_SMD:R_0603_1608MetricR8
12.0kΩResistor_SMD:R_0603_1608MetricR10
122.0µFCapacitor_SMD:C_0603_1608MetricC28
1220Ω @100 MHzInductor_SMD:L_0603_1608MetricFB2
1220Ω @100MHzInductor_SMD:L_0603_1608MetricFB1
122µFCapacitor_SMD:C_0603_1608MetricC9
1549ΩResistor_SMD:R_0603_1608MetricR13
1820ΩResistor_SMD:R_0603_1608MetricR16
193AA66C-I/MSfootprints:MSOP8_MC_MCHU2
1ABM8G-25.000MHZ-18-D2Y-Tfootprints:CRYSTAL_ABM8G_ABRY2
1AMS1117-3.3Package_TO_SOT_SMD:SOT-223-3_TabPin2U10
1AP2112K-1.2Package_TO_SOT_SMD:SOT-23-5U11
1CM4001008footprints:MODULE_CM4001008U3
1GSB1C41110SSHRfootprints:AMPHENOL_GSB1C41110SSHRJ5
1LAN7800/Y9Xfootprints:SQFN48_7X7_Y9X_MCHU1
1M20-9990246footprints:HARWIN_M20-9990246J4
1RH100-24.000-22-EXT-TR-NS1footprints:XTAL_RH100-24.000-22-EXT-TR-NS1Y3
1TLV75510PDRVPackage_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mmU6
1TPS259530DSGRfootprints:DSG0008A_NVU9
1UPD720201K8-701-BAC-Afootprints:QFN40P800X800X90-69NU4
1W25Q16JVSSPackage_SO:SOIC-8_5.3x5.3mm_P1.27mmU7

Questions

How big is the CM4IO2 PCB?

It measures 97.6 × 75.2 mm and has 4 copper layers, 1.6 mm thick.

What parts does the CM4IO2 use?

81 parts, built around the LAN7800/Y9X, UPD720201K8-701-BAC-A, W25Q16JVSSIQ and USBLC6-2SC6. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the CM4IO2 KiCad files?

From the Lystea11/Metaframe-files repository on GitHub, at the commit this page was made from: the board is KiCad/CM4IO2.kicad_pcb and its schematic KiCad/CM4IO2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CM4IO2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask Lystea11 before reusing the design.

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