6 layers128.3 × 98.3 mm
8 layers227.5 × 104 mm
Com express-7-baseboard
antmicro/com-express-7-baseboard12This project contains open hardware design files for a baseboard supporting COM Express 7 modules. The board breaks-out major communications and peripheral interfaces provided by the standard.
- Size
- 227.5 × 104 mm
- Copper layers
- 8
- Thickness
- 1.62 mm
- Parts
- 815
- Nets
- 1,000
- Pads
- 3,353
- Tracks, vias
- 9,306, 2,865
- Pours
- 3,801
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 Oct 2024
- Updated
- 11 Dec 2025
Overview
Com express-7-baseboard is an open-source printed circuit board by antmicro, from the antmicro/com-express-7-baseboard repository on GitHub, published under the Apache-2.0 licence. It is an 8-layer board of 227.5 × 104 mm with 815 parts on 1,000 nets, routed with 9,306 tracks and 2,865 vias.
It is built around the PCA9539AHF, PI3EQX16904GLZHEX and TLK10232CTR, with the TPS56C230RJER, FT230XQ-R and ESD204DQAR among its other parts. Its parts include 330 resistors, 216 capacitors, 48 ICs, 35 diodes and 14 transistors. It belongs with the computers and single-board computers boards of this library.
Main components
12
PCA9539AHF
HWQFN-24-EP(4x4)-40℃~+85℃ 1.5uA 1.65V~5.5V 10mA 16 25mA 4 400kHz I2C、SMBus Interrupt Output Reset function、Cascade and address expansion、Built-in LED driver HWQFN-24-EP(4x4) I/O Expanders ROHSNXP SemiconductorsI/O Expanders
PI3EQX16904GLZHEX
TQFN-42(9x3.5)-40℃~+85℃ 16Gbps 3V~3.6V 4 CML CML Driver、Buffer TQFN-42(9x3.5) Signal Buffers, Repeaters, Splitters ROHSDiodes IncorporatedSignal Buffers, Repeaters, Splitters
TLK10232CTR
FCBGA-144(13x13)-40℃~+85℃ 1.5V、1.8V 10.3125Gbps Enable/shutdown function、Link status monitoring、Link equalization and compensation JTAG FCBGA-144(13x13) Interface - Specialized ROHSTexas InstrumentsInterface - Specialized
TPS56C230RJER
VQFN-20-EP(3x3)-40℃~+125℃@(TJ) 1 12A 4.5V~18V 400uA 500kHz 600mV~5.5V Adjustable Buck Buck Built-in Yes VQFN-20-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
FT230XQ-R
QFN-16-EP(4x4)-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART QFN-16-EP(4x4) USB Converters ROHSFTDIUSB Converters
ESD204DQAR
USON-10(1x2.5)-40℃~+125℃ 0.55pF 10nA 3.6V 5.5A@8/20us 50W@8/20us 7.9V 8.5V Bidirectional ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 USON-10(1x2.5) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)
NTS0102DP
TSSOP-8-40℃~+125℃ 1.65V~3.6V 2 2.3V~5.5V 50Mbps Auto Direction Detection、Power-Off Protection Bidirectional Tri-State TSSOP-8 Translators, Level Shifters ROHSNXP SemiconductorsTranslators, Level Shifters
74AUP2G132
UncategorisedNexperia
TPS3840PL30DBVRQ1
SOT-23-5-40℃~+125℃ 1 1.5V~10V 220us 300nA 3V Active Low Manual reset input Push-pull Voltage monitor SOT-23-5 Supervisor and Reset ICs ROHSTexas InstrumentsSupervisor And Reset ICs
9DBL0651CKILF
UncategorisedRenesas Electronics
ADT7476AARQZ
Uncategorisedonsemi
LTC2950CTS8-1
UncategorisedAnalog Devices
README
README.mdCOM Express 7 Baseboard
Copyright (c) 2024-2025 Antmicro
Overview
This project contains open hardware design files for a baseboard supporting COM Express 7 modules. The board breaks-out major communications and peripheral interfaces provided by the standard. It also provides a backplane connector which makes it possible to integrate this board into larger systems.
Key features
- Two SFP+ 10G Ethernet ports
- OCuLink PCIe x4 connector
- Two USB 3.0 type A ports
- Gigabit RJ45 connector
- Singular +12V supply voltage
- USB-C console output
- Two M.2 key M with PCIe x4
- M.2 key E
- SD card connector
- Backplane connector with PCIe, USB and UART console
- Temperature and fan monitor/controller with 3 12V fan connectors
- LEDs for status indication
- Board power/current monitors
- Board EEPROM and support for carrier MAFS BIOS
Project structure
The main directory contains KiCad PCB project files, a LICENSE, and a README. The remaining files are stored in the following directories:
doc- contains board schematic and documentationassets- contains visual assets for showcasing this design on Open Hardware Portal.
Licensing
This project is published under the Apache-2.0 license.
Parts
815| Qty | Value | Footprint | References |
|---|---|---|---|
| 126 | C_100n_0402 | antmicro-footprints:C_0402_1005Metric | C10, C11, C100, C102, C103, C104, C105, C107, C108, C109, C110, C111, C112, C113, C114, C115 +110 |
| 107 | R_0R_0402 | antmicro-footprints:R_0402_1005Metric | R1, R102, R106, R115, R119, R120, R124, R126, R130, R132, R133, R134, R137, R143, R147, R148 +91 |
| 105 | TP_0.75mm_SMD | antmicro-footprints:TP_SMD_0.75mm | TP1, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP100, TP101, TP102, TP103, TP104, TP105 +89 |
| 72 | R_10k_0402 | antmicro-footprints:R_0402_1005Metric | R108, R116, R121, R122, R127, R128, R135, R136, R140, R141, R142, R145, R146, R152, R153, R155 +56 |
| 51 | R_1k_0402 | antmicro-footprints:R_0402_1005Metric | R105, R160, R166, R170, R171, R179, R180, R181, R182, R183, R184, R185, R186, R187, R188, R189 +35 |
| 35 | C_22u_16V_0603 | antmicro-footprints:C_0603_1608Metric | C19, C20, C22, C23, C36, C37, C38, C40, C42, C58, C59, C106, C155, C156, C182, C183 +19 |
| 28 | R_0R_0201 | antmicro-footprints:R_0201 | R249, R250, R251, R254, R256, R257, R272, R273, R274, R275, R276, R277, R278, R279, R283, R284 +12 |
| 20 | C_1u_0402 | antmicro-footprints:C_0402_1005Metric | C1, C2, C33, C44, C45, C46, C49, C50, C56, C57, C62, C63, C66, C67, C68, C206 +4 |
| 16 | C_220n_0402 | antmicro-footprints:C_0402_1005Metric | C123, C124, C125, C126, C129, C130, C131, C132, C139, C140, C141, C142, C143, C144, C145, C146 |
| 16 | LED_G_0603_LTST-C190GKT | antmicro-footprints:LED_0603_1608Metric_G | D7, D8, D11, D12, D13, D14, D15, D16, D26, D27, D28, D30, D31, D32, D33, D34 |
| 15 | ESD204DQAR | antmicro-footprints:USON-10_2.5x1mm_P0.5mm | U1, U2, U8, U9, U10, U11, U12, U13, U14, U15, U16, U17, U35, U46, U47 |
| 12 | R_220R_0402 | antmicro-footprints:R_0402_1005Metric | R62, R63, R64, R65, R72, R73, R123, R129, R138, R139, R320, R322 |
| 10 | R_100k_0402 | antmicro-footprints:R_0402_1005Metric | R90, R94, R101, R118, R144, R164, R172, R173, R246, R280 |
| 8 | R_2k2_0402 | antmicro-footprints:R_0402_1005Metric | R12, R13, R159, R165, R318, R319, R324, R325 |
| 8 | R_470R_0402 | antmicro-footprints:R_0402_1005Metric | R7, R8, R9, R10, R326, R327, R330, R331 |
| 7 | BAT54C | antmicro-footprints:SOT-23-3 | D19, D20, D21, D22, D23, D35, D36 |
| 7 | BSS138-7-F | antmicro-footprints:SOT-23-3 | Q1, Q3, Q5, Q7, Q8, Q11, Q12 |
| 6 | C_Pol_100u_10V_KEMET-T520-B | antmicro-footprints:C_Pol_EIA-B | C3, C4, C51, C52, C64, C65 |
| 6 | NTS0102_TSSOP | antmicro-footprints:TSSOP-8_3x3mm_P0.65mm | U7, U27, U28, U29, U42, U44 |
| 6 | R_0R001_0805 | antmicro-footprints:R_0805_2012Metric | R82, R85, R103, R104, R113, R114 |
| 6 | R_5k1_0402 | antmicro-footprints:R_0402_1005Metric | R67, R68, R161, R163, R328, R329 |
| 5 | R_15k_0402 | antmicro-footprints:R_0402_1005Metric | R98, R100, R107, R110, R112 |
| 5 | Spacer_Drill3.7mm_H5mm_9774050151R | antmicro-footprints:Spacer_Drill3.7mm_H5mm_9774050151R | H6, H7, H8, H9, H10 |
| 4 | C_100n_0201_25V | antmicro-footprints:C_0201 | C153, C154, C180, C181 |
| 4 | C_Pol_68u_16V_Panasonic-TQC-D | antmicro-footprints:C_Pol_EIA-D | C39, C41, C43, C94 |
| 4 | Choke_SRF2012A-801Y | antmicro-footprints:Choke_0805_2012Metric | T1, T2, T3, T4 |
| 4 | MMBT3904LT1G | antmicro-footprints:SOT-23-3 | Q9, Q10, Q13, Q14 |
| 4 | PESD5Z5_0F | antmicro-footprints:SOD-523 | D1, D2, D10, D29 |
| 4 | R_75R_0402 | antmicro-footprints:R_0402_1005Metric | R14, R15, R16, R17 |
| 4 | TPD2E2U06_SC70 | antmicro-footprints:SC70-3 | D3, D6, D9, D25 |
| 4 | Trans_SM453229-381N7Y | antmicro-footprints:Trans_Eth_4.7x3.3mm | T5, T6, T7, T8 |
| 3 | 74AUP2G132 | antmicro-footprints:VSSOP-8_2.3x2mm_P0.5mm | U30, U33, U38 |
| 3 | INA219AIDCNR | antmicro-footprints:SOT-23-8 | U48, U49, U50 |
| 3 | Jumper_1x2_P2.54mm | antmicro-footprints:Jumper_1x2_P2.54mm | JP1, JP2, JP3 |
| 3 | L_1u8_6.8A_WE-MAPI-4020 | antmicro-footprints:L_WE-MAPI-4020 | L1, L3, L4 |
| 3 | Molex_KK_1x4_0470531000 | antmicro-footprints:Conn_Molex_KK_1x4_0470531000 | J9, J10, J11 |
| 3 | PinHeader_1x3_P2.54mm_Drill1.1mm | antmicro-footprints:PinHeader_1x3_P2.54mm_Drill1.1mm | J7, J13, J14 |
| 3 | R_30k_0402 | antmicro-footprints:R_0402_1005Metric | R87, R111, R117 |
| 3 | R_330R_0402 | antmicro-footprints:R_0402_1005Metric | R11, R61, R66 |
| 3 | R_68k_0402 | antmicro-footprints:R_0402_1005Metric | R88, R91, R99 |
| 3 | Spacer_Drill3.7mm_H2.5mm_9774025151R | antmicro-footprints:Spacer_Drill3.7mm_H2.5mm_9774025151R | H1, H2, H3 |
| 2 | 74LVC1G157-Q100H_SOT457 | antmicro-footprints:SC-74-6_1.5x2.9mm_P0.95mm | U25, U26 |
| 2 | AP22615A_TSOT26 | antmicro-footprints:TSOT23-6 | U3, U4 |
| 2 | C_1u_25V_0402 | antmicro-footprints:C_0402_1005Metric | C98, C101 |
| 2 | C_47p_0402 | antmicro-footprints:C_0402_1005Metric | C30, C31 |
| 2 | LED_RGB_PLCC4_ASMB_MTB1_0A3A2 | antmicro-footprints:PLCC4_3.2x2.8mm | D17, D18 |
| 2 | LED_Y_0603_LTST-C191KSKT | antmicro-footprints:LED_0603_1608Metric_Y | D4, D5 |
| 2 | Lightpipe_Bivar_SLP3-300-250-F | antmicro-footprints:Mech_Lightpipe_Bivar_SLP3-300-250-F | H4, H5 |
| 2 | Mech_M2_2280_H2.5mm | antmicro-footprints:Mech_M2_2280_H2.5mm | A1, A2 |
| 2 | Oscillator_156.25MHz_SG3225EEN | antmicro-footprints:Oscillator_SMD_Epson_SG3225EEN_3.2x2.5x1.2mm | Y2, Y3 |
| 2 | PCA9539AHF | antmicro-footprints:QFN-24-1EP_4x4mm_P0.5_EP2.1x2.1mm | U5, U41 |
| 2 | PI3EQX16904GL | antmicro-footprints:WQFN-42-1EP_3.5x9mm_P0.5mm | U39, U40 |
| 2 | R_0R_22.4A_0603 | antmicro-footprints:R_0603_1608Metric | R125, R131 |
| 2 | R_27R_0402 | antmicro-footprints:R_0402_1005Metric | R69, R70 |
| 2 | SI7613DN-T1-GE3 | antmicro-footprints:Vishay_PowerPAK_1212-8_Single | Q2, Q4 |
| 2 | TLK10232CTR | antmicro-footprints:BGA-144_12x12_13.05x13.05mm_P1.0mm | U43, U45 |
| 2 | TPS3840PL30DBVR | antmicro-footprints:SOT-23-5 | U20, U32 |
| 2 | TPS564247DRLR | antmicro-footprints:SOT-563 | U21, U22 |
| 2 | TPS56C230 | antmicro-footprints:QFN-20-1EP_3x3mm_P0.45mm_TPS56xxxx | U18, U19 |
| 1 | 9DBL0651CKILF | antmicro-footprints:VFQFPN-40-1EP_5x5mm_P0.4mm_EP3.5x3.5mm | U37 |
| 1 | ADT7476AARQZ | antmicro-footprints:QSOP-24_8.65x6mm_P0.635mm | U24 |
| 1 | Amphenol_RJE361882415 | antmicro-footprints:RJ45_RJE361882415 | J1 |
| 1 | BSS84AKW | antmicro-footprints:SOT-323 | Q6 |
| 1 | Battery_Holder_MS621FE-FL11E | antmicro-footprints:MS621FE-FL11E | BT1 |
| 1 | Bel-Fuse_SFP+_2x20_SS-79100-010 | antmicro-footprints:Conn_Bel-Fuse_SFP+_2x20_SS-79100-010 | J2 |
| 1 | Bus_M.2_1-2199230-6 | antmicro-footprints:Bus_M.2_Socket_Key_M_TE_1-2199230-6 | J8 |
| 1 | Bus_M.2_2199230-2 | antmicro-footprints:Bus_M.2_Socket_Key_E_TE_2199230-6 | J100 |
| 1 | Bus_M.2_MDT180M03001 | antmicro-footprints:Bus_M.2_Socket_Key_M_Amphenol_MDT180M03001 | J5 |
| 1 | C_1n_1210_2kV | antmicro-footprints:C_1210_3225Metric | C12 |
| 1 | FT230X_QFN | antmicro-footprints:QFN-16-1EP_4x4mm_P0.65mm | U6 |
| 1 | F_12A_1206 | antmicro-footprints:F_1206_3216Metric | F1 |
| 1 | LTC2950CTS8-1 | antmicro-footprints:SOT-23-8 | U34 |
| 1 | L_1u8_14A_Coilcraft-XAL6030 | antmicro-footprints:L_Coilcraft-XAL6030 | L2 |
| 1 | M24C64-F_DFN8 | antmicro-footprints:DFN-8-1EP_3x2mm_P0.5mm_EP1.36x1.46mm | U31 |
| 1 | Mech_M2_2230_H2.5mm | antmicro-footprints:Mech_M2_2230_H2.5mm | A4 |
| 1 | Mech_SolidRun_LX2160A-CEX7 | antmicro-footprints:Mech_SolidRun_LX2160A-CEX7 | A3 |
| 1 | MicroSD_693071020811 | antmicro-footprints:MicroSD_Wurth_693071020811 | J15 |
| 1 | Molex_Nano-Fit_1x2_105309-1202 | antmicro-footprints:Conn_Molex_Nano-Fit_1x2_105309-1202 | J6 |
| 1 | OCuLink_x4_Amphenol_G14A421211112HR | antmicro-footprints:Amphenol_G14A421211112HR | J4 |
| 1 | Oscillator_32.768kHz_ECS_2520MV | antmicro-footprints:Oscillator_SMD_ECS_2520MV_2.5x2mm | Y1 |
The 796 most common of 815 parts.
Questions
How big is the Com express-7-baseboard PCB?
It measures 227.5 × 104 mm and has 8 copper layers, 1.62 mm thick.
What parts does the Com express-7-baseboard use?
815 parts, built around the PCA9539AHF, PI3EQX16904GLZHEX, TLK10232CTR and TPS56C230RJER. 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 Com express-7-baseboard KiCad files?
From the antmicro/com-express-7-baseboard repository on GitHub, at the commit this page was made from: the board is com-express-7-baseboard.kicad_pcb and its schematic 2xSFP+.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Com express-7-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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