
Com express-7-baseboard
antmicro/com-express-7-baseboard
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.

PC ExtensionBoard is an open-source printed circuit board by caotiendattx, from the caotiendattx/PC_ExtensionBoard repository on GitHub. It is a 6-layer board of 128.3 × 98.3 mm with 269 parts on 628 nets, routed with 4,857 tracks and 496 vias.
It is built around the STM32G0B1RCT6, CH224K and TPS56C230RJER, with the ESD204DQAR, HC-USB3.0-L168-WP and TPAZ1023-04F among its other parts. Its parts include 106 resistors, 73 capacitors, 26 diodes, 25 ICs and 7 transistors. It belongs with the STM32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 35 | R_0R_0402 | PC_Components_1:R_0402_1005Metric | R102, R103, R115, R119, R126, R130, R132, R133, R134, R137, R178, R192, R193, R194, R195, R314 +19 |
| 26 | R_10k_0402 | PC_Components_1:R_0402_1005Metric | R30, R36, R60, R63, R67, R108, R116, R127, R128, R135, R136, R140, R141, R142, R152, R153 +10 |
| 23 | C_100n_0402 | PC_Components_1:C_0402_1005Metric | C16, C17, C18, C21, C23, C103, C104, C107, C108, C109, C110, C112, C113, C114, C204, C205 +7 |
| 17 | C_22u_16V_0603 | PC_Components_1:C_0603_1608Metric | C22, C31, C33, C34, C40, C58, C59, C75, C76, C77, C78, C79, C80, C81, C106, C111 +1 |
| 12 | C_1u_0402 | PC_Components_1:C_0402_1005Metric | C11, C12, C38, C44, C45, C50, C57, C62, C66, C67, C69, C70 |
| 11 | R_1k_0402 | PC_Components_1:R_0402_1005Metric | R105, R186, R187, R188, R189, R190, R191, R196, R197, R198, R199 |
| 8 | 100nF/16V | PC_Components_1:C_0402_1005Metric | C1, C2, C3, C4, C8, C9, C19, C20 |
| 8 | Spacer_Drill3.7mm_H5mm_9774025151R | PC_Components_1:Spacer_Drill3.7mm_H5mm_9774050151R | H2, H3, H4, H5, H6, H7, H8, H9 |
| 6 | TPD2E2U06_SC70 | PC_Components_1:SC70-3 | D6, D8, D27, D28, D29, D30 |
| 4 | 0402ESDA-05N | PC_Components_1:C_0402_1005Metric | D10, D11, D14, D19 |
| 4 | 2.2K/1% | PC_Components_1:R_0402_1005Metric | R28, R29, R31, R35 |
| 4 | AP22615A_TSOT26 | PC_Components_1:TSOT23-6 | U10, U13, U15, U17 |
| 4 | C_1u_0402 | Capacitor_SMD:C_0402_1005Metric | C5, C6, C42, C47 |
| 4 | C_Pol_100u_10V_KEMET-T520-B | PC_Components_1:C_Pol_EIA-B | C7, C10, C41, C46 |
| 4 | ESD204DQAR | PC_Components_1:USON-10_2.5x1mm_P0.5mm | U8, U14, U16, U18 |
| 4 | PESD5Z5_0F | PC_Components_1:SOD-523 | D3, D9, D20, D22 |
| 4 | R_2k2_0402 | PC_Components_1:C_0402_1005Metric | R14, R64, R71, R78 |
| 3 | 0402ESDA-05N | PC_Components_1:D0402-BI | D2, D4, D7 |
| 3 | BSS138-7-F | PC_Components_1:SOT-23-3 | Q3, Q7, Q8 |
| 3 | Conn_01x02_Socket | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J4, J5, J7 |
| 3 | LED_G_0603_LTST-C190GKT | PC_Components_1:LED_0603_1608Metric_G | D15, D16, D21 |
| 3 | R_15k_0402 | PC_Components_1:R_0402_1005Metric | R100, R107, R110 |
| 3 | R_220R_0402 | PC_Components_1:R_0402_1005Metric | R129, R138, R139 |
| 3 | R_470R_0402 | PC_Components_1:R_0402_1005Metric | R15, R332, R333 |
| 3 | TP_0.75mm_SMD | PC_Components_1:TP_SMD_0.75mm | TP44, TP45, TP46 |
| 2 | 1K/1% | PC_Components_1:R_0402_1005Metric | R40, R48 |
| 2 | 2SK3018 | Package_TO_SOT_SMD:SOT-23 | Q9, Q10 |
| 2 | C_Pol_100u_10V_KEMET-T520-B | PC_Components_1:CAP-SMD_L3.5-W2.8 | C52, C64 |
| 2 | HC-USB3.0-L168-WP | ACLAB:USB-TH_USB3.0-A | U1, U7 |
| 2 | INA219AIDCNR | PC_Components_1:SOT-23-8 | U49, U50 |
| 2 | LED_RGB_PLCC4_ASMB_MTB1_0A3A2 | PC_Components_1:PLCC4_3.2x2.8mm | D17, D18 |
| 2 | R_0R001_0805 | PC_Components_1:R_0402_1005Metric | R104, R113 |
| 2 | R_100k_0402 | PC_Components_1:R_0402_1005Metric | R101, R118 |
| 2 | R_30k_0402 | PC_Components_1:R_0402_1005Metric | R87, R117 |
| 2 | R_68k_0402 | PC_Components_1:R_0402_1005Metric | R91, R99 |
| 2 | Spacer_Drill3.7mm_H2.5mm_9774025151R | PC_Components_1:Spacer_Drill3.7mm_H2.5mm_9774025151R | H10, H11 |
| 2 | TPAZ1023-04F | PC_Components_1:DFN2510-10_L2.5-W1.0-P0.50-BL | U5, U6 |
| 1 | 100nF/16V | Capacitor_SMD:C_0402_1005Metric | C30 |
| 1 | 10GHz | ACLAB:SMA-TH_SMA-KWE | U2 |
| 1 | 10K/1% | PC_Components_1:R_0402_1005Metric | R37 |
| 1 | 1M/1% | PC_Components_1:R_0402_1005Metric | R41 |
| 1 | 1N5819WS | PC_Components_1:D_SOD-323 | D1 |
| 1 | 1uF/16V | PC_Components_1:C_0402_1005Metric | C61 |
| 1 | 21.5K/1% | PC_Components_1:R_0402_1005Metric | R42 |
| 1 | 24K/1% | PC_Components_1:C_0402_1005Metric | R47 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q11 |
| 1 | 6V/50mA | PC_Components_1:R_0603_1608Metric | F1 |
| 1 | 74AUP2G132 | PC_Components_1:VSSOP-8_2.3x2mm_P0.5mm | U38 |
| 1 | 9DBL0651CKILF | PC_Components_1:VFQFPN-40-1EP_5x5mm_P0.4mm_EP3.5x3.5mm | U37 |
| 1 | BAT54C | PC_Components_1:SOT-23-3 | D36 |
| 1 | Battery CMOS | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | BT1 |
| 1 | Bus_M.2_1-2199230-6 | PC_Components_1:Bus_M.2_Socket_Key_M_TE_1-2199230-6 | J8 |
| 1 | Bus_M.2_2199230-2 | PC_Components_1:Bus_M.2_Socket_Key_E_TE_2199230-6 | J100 |
| 1 | CH224K | PC_Components_1:ESSOP-10_L4.9-W3.9-P1.0-LS6.0-TL-EP | U9 |
| 1 | C_Pol_68u_16V_Panasonic-TQC-D | PC_Components_1:CAP-SMD_L7.3-W4.3-R-RD | C39 |
| 1 | Conn_01x04_Pin | Connector_PinSocket_2.00mm:PinSocket_1x04_P2.00mm_Vertical | J6 |
| 1 | Conn_01x16_MountingPin | PC_Components_1:FPC-SMD_P0.50-16P_FGS-XJ-H2.0 | J3 |
| 1 | DC-528φ2.0(HY) | PC_Components_1:DC-IN-TH_DC-528-2.0-HY | U12 |
| 1 | D_Schottky | PC_Components_1:D_SOD-323 | D5 |
| 1 | HC-USB3.0-L175-2X1-P | PC_Components_1:USB-A-TH_H181-AF2R06-12ALCR | USB1 |
| 1 | HDMI_A | PC_Components_1:HDMI-SMD_HDMI-019S | HDMI1 |
| 1 | HR911130A | PC_Components_1:RJ45-TH_HR911130A | RJ1 |
| 1 | J18 | PC_Components_1:USB-C_SMD-TYPE-C-31-M-12_1 | USBC1 |
| 1 | K2-1808SN-A4SW | PC_Components_1:KEY-SMD_4P-L4.2-W3.2-P2.20-LS5.1-TL | SW1 |
| 1 | KBLH-E61_COMe_Type6_16U | DatCao_FootPrint:CORE_BOARD_CUSTOM_440_PIN | U3 |
| 1 | L_1u8_14A_Coilcraft-XAL6030 | PC_Components_1:L_Coilcraft-XAL6030 | L2 |
| 1 | L_1u8_6.8A_WE-MAPI-4020 | PC_Components_1:L_WE-MAPI-4020 | L3 |
| 1 | Mech_M2_2230_H2.5mm | PC_Components_1:Mech_M2_2230_H2.5mm | A4 |
| 1 | Mech_M2_2280_H2.5mm | PC_Components_1:Mech_M2_2280_H2.5mm | A1 |
| 1 | Oscillator_32.768kHz_ECS_2520MV | PC_Components_1:Oscillator_SMD_ECS_2520MV_2.5x2mm | Y1 |
| 1 | PESD24VS1UL-N | PC_Components_1:C_0402_1005Metric | D12 |
| 1 | R_0R_22.4A_0603 | PC_Components_1:R_0603_1608Metric | R131 |
| 1 | R_110k_0402 | PC_Components_1:R_0402_1005Metric | R109 |
| 1 | R_330R_0402 | PC_Components_1:R_0402_1005Metric | R17 |
| 1 | SI7613DN-T1-GE3 | PC_Components_1:Vishay_PowerPAK_1212-8_Single | Q4 |
| 1 | STM32G0B1RCT6 | Package_QFP:LQFP-64-1EP_10x10mm_P0.5mm_EP5x5mm | U4 |
| 1 | TLV73333PDBVT | PC_Components_1:SOT-23-5 | U23 |
| 1 | TPS3840PL30DBVR | PC_Components_1:SOT-23-5 | U20 |
| 1 | TPS564247DRLR | PC_Components_1:SOT-563 | U21 |
| 1 | TPS56C230 | PC_Components_1:QFN-20-1EP_3x3mm_P0.45mm_TPS56xxxx | U19 |
It measures 128.3 × 98.3 mm and has 6 copper layers, 1.6 mm thick.
269 parts, built around the STM32G0B1RCT6, CH224K, TPS56C230RJER and ESD204DQAR. 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.
From the caotiendattx/PC_ExtensionBoard repository on GitHub, at the commit this page was made from: the board is PC_ExtensionBoard/PC_ExtensionBoard.kicad_pcb and its schematic PC_ExtensionBoard/HDMI.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask caotiendattx before reusing the design.

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