4 layers128.5 × 40 mm
Scalenode cm4-baseboard
antmicro/scalenode-cm4-baseboard
Baseboard for Raspberry Pi 4 Compute Module optimized for clustering
146 parts152Apache-2.0
6 layers107 × 68 mm
Cm4-baseboard
antmicro/cm4-baseboard36Experimental baseboard supporting System on Modules with Raspberry Pi CM4/CM5 pinout
- Size
- 107 × 68 mm
- Copper layers
- 6
- Thickness
- 1.63 mm
- Parts
- 516
- Nets
- 506
- Pads
- 2,014
- Tracks, vias
- 6,440, 1,129
- Pours
- 47
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 3 Apr 2024
- Updated
- 10 Apr 2026
Overview
Cm4-baseboard is an open-source printed circuit board by antmicro, from the antmicro/cm4-baseboard repository on GitHub, published under the Apache-2.0 licence. It is a 6-layer board of 107 × 68 mm with 516 parts on 506 nets, routed with 6,440 tracks and 1,129 vias.
It is built around the FT4233HPQ-REEL, TXB0104RUTR and 93AA66C-I/SN, with the ACPL-217-500E, DS1338Z-18+ and NTS0104BQ among its other parts. Its parts include 166 resistors, 115 capacitors, 58 diodes, 28 transistors and 16 ICs. It belongs with the computers and single-board computers boards and the Raspberry Pi (Linux) boards of this library.
Main components
12
FT4233HPQ-REEL
QFN-76(9x9)-40℃~+85℃ 1.08V~1.32V、2.97V~3.63V 132.2uA 4 480Mbps Controller USB 2.0 QFN-76(9x9) USB Converters ROHSFTDIUSB Converters
TXB0104RUTR
UQFN-12(1.7x2)-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 4 Auto Direction Detection Bidirectional Tri-State UQFN-12(1.7x2) Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
93AA66C-I/SN
SOIC-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 200 Years 3MHz 4Kbit 6ms Built-in write enable latch (WEL)、Power-down/Power-up protection circuit、Sequential read function SPI SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
ACPL-217-500E
SOP-4-2.8mm-55℃~+110℃ 1 1.2V 200mW 2us 3.75kV 3us 400mV@8mA,2.4mA 50% 50mA 50mA 600% 80V 9V DC Phototransistor SOP-4-2.8mm Transistor, Photovoltaic Output Optoisolators ROHSBroadcom LimitedTransistor, Photovoltaic Output Optoisolators
DS1338Z-18+
UncategorisedMaxim Integrated Products
NTS0104BQ
DHVQFN-14-EP(2.5x3)-40℃~+125℃ 1 1.65V~3.6V 2.3V~5.5V 4 50Mbps Auto Direction Detection Bidirectional Push-Pull、Open-drain DHVQFN-14-EP(2.5x3) Translators, Level Shifters ROHSNXP SemiconductorsTranslators, Level Shifters
CR0402-FX-1002GLF
0402-55℃~+155℃ 10kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSBournsChip Resistor - Surface MountERJ2GE0R00X
0402-100ppm/℃~+600ppm/℃ -55℃~+155℃ 0Ω 100mW Thick Film Resistor 0402 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface Mount
PUSB3F96X
DFN2510-10-40℃~+85℃ 0.5pF 1uA 4.6V 6V ESD Four channels IEC 61000-4-2 DFN2510-10 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
CL21A226MAYNNNE
080522uF 25V X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTCR0402-FX-1003GLF
0402-55℃~+155℃ 100kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSBournsChip Resistor - Surface Mount
KP-1608CGCK
0603-40℃~+85℃ 120° 2.5V 20mA 50mcd 570nm 574nm 75mW Discrete Diode Water Clear Yellow Green 0603 LED Indication - Discrete ROHSKingbrightLED Indication - Discrete
README
README.mdCM4 Baseboard
Copyright (c) 2024-2026 Antmicro
Overview
This project contains open hardware design files for a baseboard supporting System on Modules (SoMs) with Raspberry Pi Compute Module rev. 4.0 (CM4) pinout. The baseboard is also electrically compatible with Compute Module rev. 5.0 (CM5). Please note that the pins associated with CAM0 and DSI0 on the CM4 module were changed to USB 3.0 ports on the CM5 module. Please refer to the schematics of the baseboard and respective compute modules for details.
The design files were prepared in KiCad 9.x.
Key features
- Compatible with Raspberry Pi CM4 and CM5 modules
- Includes extended features to support Antmicro PolarFire SoM
- Compact size (107mm x 68mm)
- Multiple power supply options (USB-PD, PoE, 9-15V DC Input Connector) with automatic switching between sources
- M.2 (key-M) 2280 PCIe 2.0 x4 slot for NVMe storage
- USB-C 2.0 DRP (5V with 1.5A) output
- USB-C UFP with Power Delivery (15V with 3A) input with USB-4xUART/USB-I2C bridge
- Gigabit Ethernet with PoE
- DSI Adapter Connector for customized display adapters
- Antmicro's 50-pin FFC camera connector for external camera modules and video accessories
- HDMI 2.0 output
- microSD slot
- 2x QWIIC expansion connectors for external sensors and peripherals
- NFC transceiver (PN7160) with an external antenna connector
- Expansion connector
The baseboard is electrically compatible with the following video converters and accessories developed by Antmicro:
- GMSL Deserializer Board
- SDI-MIPI Video Converter
- HDMI to MIPI CSI-2 Bridge
- Composite Video to MIPI CSI-2 Bridge
Project structure
The main directory contains KiCad PCB project files, the LICENSE, and this README, and the img directory contains graphics for this README.
License
This project is published under the Apache-2.0 license.
Parts
516| Qty | Value | Footprint | References |
|---|---|---|---|
| 62 | TP_0.75mm_SMD | antmicro-footprints:TP_SMD_0.75mm | TP201, TP202, TP203, TP204, TP205, TP206, TP207, TP208, TP209, TP210, TP211, TP212, TP213, TP214, TP215, TP216 +46 |
| 45 | R_10k_0402 | antmicro-footprints:R_0402_1005Metric | R230, R231, R232, R233, R234, R235, R236, R237, R238, R310, R311, R312, R314, R407, R408, R409 +29 |
| 44 | C_100n_0402 | antmicro-footprints:C_0402_1005Metric | C201, C202, C203, C204, C206, C207, C210, C302, C307, C308, C309, C310, C403, C411, C601, C602 +28 |
| 36 | R_0R_0402 | antmicro-footprints:R_0402_1005Metric | R2, R201, R202, R205, R206, R208, R209, R216, R217, R218, R219, R220, R221, R222, R223, R225 +20 |
| 22 | PUSB3F96X_PASS | antmicro-footprints:Nexperia_DFN-10_2.5x1mm_P0.5mm | D501, D502, D701, D702, D703, D704, D705, D706, D707, D708, D801, D802, D803, D804, D805, D806 +6 |
| 18 | C_22u_25V_0805 | antmicro-footprints:C_0805_2012Metric | C303, C304, C305, C306, C312, C313, C314, C315, C316, C317, C318, C408, C409, C410, C905, C907 +2 |
| 18 | R_100k_0402 | antmicro-footprints:R_0402_1005Metric | R1, R203, R204, R212, R213, R214, R260, R261, R262, R263, R315, R416, R420, R601, R904, R914 +2 |
| 17 | LED_G_0603_KP-1608CGCK | antmicro-footprints:LED_0603_1608Metric_G | D201, D202, D205, D206, D207, D302, D304, D305, D306, D404, D503, D601, D602, D905, D906, D907 +1 |
| 13 | PJE138K | antmicro-footprints:SOT-523 | Q201, Q207, Q208, Q209, Q210, Q211, Q213, Q214, Q401, Q901, Q904, Q905, Q906 |
| 13 | R_470R_0402 | antmicro-footprints:R_0402_1005Metric | R210, R211, R326, R327, R418, R421, R505, R510, R512, R607, R918, R920, R921 |
| 11 | R_2k2_0402 | antmicro-footprints:R_0402_1005Metric | R215, R241, R243, R319, R321, R807, R808, R811, R907, R913, R923 |
| 8 | C_10u_0402 | antmicro-footprints:C_0402_1005Metric | C209, C501, C503, C505, C701, C702, C703, C908 |
| 8 | C_1u_0402 | antmicro-footprints:C_0402_1005Metric | C311, C502, C504, C506, C507, C603, C604, C802 |
| 7 | R_1k_0402 | antmicro-footprints:R_0402_1005Metric | R207, R224, R229, R325, R606, R901, R902 |
| 7 | SSM3J332R | antmicro-footprints:SOT-23-3 | Q202, Q203, Q204, Q205, Q206, Q212, Q903 |
| 6 | C_template_name_0402 | antmicro-footprints:C_0402_1005Metric | C816, C817, C820, C823, C826, C827 |
| 6 | R_470k_0402 | antmicro-footprints:R_0402_1005Metric | R304, R305, R306, R415, R419, R915 |
| 6 | R_4k7_0402 | antmicro-footprints:R_0402_1005Metric | R307, R309, R604, R605, R905, R927 |
| 5 | PESD5Z5_0F | antmicro-footprints:SOD-523 | D603, D604, D709, D712, D903 |
| 5 | R_0R_22.4A_0603 | antmicro-footprints:R_0603_1608Metric | R308, R322, R323, R324, R328 |
| 5 | R_200R_0402 | antmicro-footprints:R_0402_1005Metric | R242, R411, R412, R413, R926 |
| 5 | SQS401EN-T1_BE3 | antmicro-footprints:Vishay_PowerPAK_1212-8_Single | Q304, Q305, Q306, Q307, Q902 |
| 4 | C_22u_100V_2220 | antmicro-footprints:C_2220_5650Metric | C404, C405, C406, C407 |
| 4 | C_2u2_0402 | antmicro-footprints:C_0402_1005Metric | C805, C806, C807, C808 |
| 4 | C_4u7_0402 | antmicro-footprints:C_0402_1005Metric | C801, C803, C924, C925 |
| 4 | FB_220Z_2.2A_TDK-MPZ_0603 | antmicro-footprints:FB_0603_1608Metric | FB401, FB402, FB701, FB702 |
| 4 | RB521S30T1G | antmicro-footprints:SOD-523 | D710, D811, D908, D910 |
| 4 | R_33k_0402 | antmicro-footprints:R_0402_1005Metric | R301, R302, R303, R313 |
| 4 | Spacer_Drill3.7mm_H3mm_9774030151R | antmicro-footprints:Spacer_Drill3.7mm_H3mm_9774030151R | H201, H202, H203, H204 |
| 4 | Spacer_Drill3.7mm_H6mm_9774060151R | antmicro-footprints:Spacer_Drill3.7mm_H6mm_9774060151R | H101, H102, H103, H104 |
| 4 | TPD1E0B04_XDFN-2 | antmicro-footprints:XDFN-2_1x0.60mm | D203, D204, D504, D711 |
| 3 | AP22615A_TSOT26 | antmicro-footprints:TSOT23-6 | U601, U602, U901 |
| 3 | AP62301_TSOT | antmicro-footprints:TSOT23-6 | U301, U302, U903 |
| 3 | DZDH0401DW | antmicro-footprints:SOT-363 | Q301, Q302, Q303 |
| 3 | FB_120Z_1.3A_Murata-BLM15PD_0402 | antmicro-footprints:FB_0402_1005Metric | FB901, FB902, FB903 |
| 3 | L_1u_5.5A_Bourns-SRP3212A | antmicro-footprints:L_Bourns-SRP3212A | L301, L302, L901 |
| 3 | R_4x100R_0402_array | antmicro-footprints:R_Array_4x0402_Panasonic_EXB28V | R701, R705, R706 |
| 3 | R_6k8_0402 | antmicro-footprints:R_0402_1005Metric | R318, R320, R912 |
| 3 | SMF4L15A | antmicro-footprints:SOD-123FL | D301, D303, D904 |
| 3 | TXB0104_UQFN | antmicro-footprints:UQFN-12_2x1.7mm_P0.4mm_Texas_RUT | U201, U203, U907 |
| 2 | CD-MMBL110S | antmicro-footprints:DFN3538 | D401, D402 |
| 2 | C_10p_0402 | antmicro-footprints:C_0402_1005Metric | C810, C815 |
| 2 | C_12p_0402 | antmicro-footprints:C_0402_1005Metric | C811, C814 |
| 2 | C_18p_0402 | antmicro-footprints:C_0402_1005Metric | C926, C927 |
| 2 | C_1n_0402 | antmicro-footprints:C_0402_1005Metric | C812, C813 |
| 2 | C_1u_25V_0402 | antmicro-footprints:C_0402_1005Metric | C301, C931 |
| 2 | C_36p_0402 | antmicro-footprints:C_0402_1005Metric | C821, C822 |
| 2 | C_39p_0402 | antmicro-footprints:C_0402_1005Metric | C824, C825 |
| 2 | C_470p_100V_0402 | antmicro-footprints:C_0402_1005Metric | C818, C819 |
| 2 | Choke_DLW21SN900SQ2L | antmicro-footprints:Choke_Murata-DLW21 | T901, T902 |
| 2 | JST_SH_1x4_SM04B-SRSS-TB-LF-SN | antmicro-footprints:Conn_JST_SH_1x4_SM04B-SRSS-TB-LF-SN | J802, J803 |
| 2 | L_160n_0.28A_0603 | antmicro-footprints:L_TE_0603_1811Metric | L801, L802 |
| 2 | R_15k_0402 | antmicro-footprints:R_0402_1005Metric | R316, R917 |
| 2 | R_24k9_0402 | antmicro-footprints:R_0402_1005Metric | R406, R414 |
| 2 | SW_KMR211NGLFS_SMD | antmicro-footprints:SW_KMR211NGLFS_SMD | S201, S202 |
| 2 | Socket_Hirose_DF40_2x50_DF40HC-3.0-100DS-0.4V | antmicro-footprints:Conn_Socket_Hirose_DF40_2x50_DF40HC-3.0-100DS-0.4V | J201, J202 |
| 2 | USB-C_GCT_USB4105-GF-A | antmicro-footprints:USB-C_Receptacle_GCT_USB4105-GF-A | J901, J902 |
| 1 | 93AA66C_SOIC | antmicro-footprints:SOIC-8_3.9x4.9x1.75mm_P1.27mm | U902 |
| 1 | ACPL-217-500E | antmicro-footprints:SOIC-4_4.55x2.6mm_P1.27mm | U402 |
| 1 | AP62600SJ-7 | antmicro-footprints:V-QFN2030-12 | U303 |
| 1 | Battery_Holder_MS621FE-FL11E | antmicro-footprints:MS621FE-FL11E | BT801 |
| 1 | Bus_M.2_1-2199230-6 | antmicro-footprints:Bus_M.2_Socket_Key_M_TE_1-2199230-6 | J501 |
| 1 | Bus_RJ45_5-2337992-8 | antmicro-footprints:RJ45_X-2337992-8_Horizontal | J401 |
| 1 | CAS-120TA | antmicro-footprints:Switch_Slide_CAS-120TA | S203 |
| 1 | C_100n_100V_0805 | antmicro-footprints:C_0805_2012Metric | C401 |
| 1 | C_10n_0402 | antmicro-footprints:C_0402_1005Metric | C402 |
| 1 | C_Pol_330u_6.3V_KEMET-T520-B | antmicro-footprints:C_Pol_EIA-B | C929 |
| 1 | Compute-Module-4_H1.5mm | antmicro-footprints:Compute-Module-4_H1.5mm | M201 |
| 1 | Conn_FFC_WE_68715014522 | antmicro-footprints:Conn_FFC_WE_68715014x22 | J601 |
| 1 | DS1338_SOIC | antmicro-footprints:SOIC-8_3.9x4.9x1.75mm_P1.27mm | U802 |
| 1 | FT4233HPQ | antmicro-footprints:QFN-76-1EP_9x9mm_P0.4mm_EP6.3x6.3mm | U905 |
| 1 | HDMI-A_WE_685119134923 | antmicro-footprints:HDMI-A_Receptacle_WE_685119134923 | J702 |
| 1 | JST_SH_1x2_SM02B-SRSS-TB-LF-SN | antmicro-footprints:Conn_JST_SH_1x2_SM02B-SRSS-TB-LF-SN | J804 |
| 1 | LED_Y_0402_VLMY1500-GS08 | antmicro-footprints:LED_0402_1005Metric_Y | D911 |
| 1 | L_1u8_14A_Coilcraft-XAL6030 | antmicro-footprints:L_Coilcraft-XAL6030 | L303 |
| 1 | MCP23017T-E_QFN | antmicro-footprints:QFN-28-1EP_6x6mm_P0.65mm_EP3.7x3.7mm | U204 |
| 1 | Mech_M2_2280_H2.5mm | antmicro-footprints:Mech_M2_2280_H2.5mm | M501 |
| 1 | MicroSD_1140084168 | antmicro-footprints:MicroSD_Amphenol_1140084168 | J502 |
| 1 | Molex_Nano-Fit_1x2_SMD_1054301202 | antmicro-footprints:Conn_Molex_Nano-Fit_1x2_SMD_1054301202 | J301 |
| 1 | NTS0104_DHVQFN | antmicro-footprints:DHVQFN-14-1EP_2.5x3mm | U904 |
The 487 most common of 516 parts.
Questions
How big is the Cm4-baseboard PCB?
It measures 107 × 68 mm and has 6 copper layers, 1.63 mm thick.
What parts does the Cm4-baseboard use?
516 parts, built around the FT4233HPQ-REEL, TXB0104RUTR, 93AA66C-I/SN and ACPL-217-500E. 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 Cm4-baseboard KiCad files?
From the antmicro/cm4-baseboard repository on GitHub, at the commit this page was made from: the board is cm4-baseboard.kicad_pcb and its schematic cm4-baseboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cm4-baseboard design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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