Base Board Design
About the Base Board Design
Base Board Design is an open source STM32 PCB design by WilliamSanchez, published on GitHub. It is a 4-layer board measuring 199.8 × 150 mm, with 492 components from 125 distinct parts.
Its main chip is the STM32H523CCUX, from the STM32 family. Other key parts include the KSZ9131RNXI, PCMF2HDMI2SZ, USB5744_2G, LTC4368IDD-2_PBF and AOZ2261AQI-15. By type, the board carries 207 capacitors, 140 resistors, 56 ICs, 29 connectors, 28 inductors and 18 diodes.
Main components on the Base Board Design
Base Board Design bill of materials (BOM)
492 components, 125 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | KSZ9131RNXI | QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U1 |
| 2 | PCMF2HDMI2SZ | WLCSP10_4-2-4_NEX | U2, U37 |
| 1 | USB5744_2G | QFN40P700X700X100-57N | U3 |
| 1 | LTC4368IDD-2_PBF | DFN-10-1EP_3x3mm_P0.5mm_EP1.65x2.38mm | U4 |
| 2 | AOZ2261AQI-15 | QFN4X4-22L_EP2_S_AOS | U5, U7 |
| 1 | NCV4274CST50T3G | SOT-223 | U6 |
| 1 | LTC2954CDDB-1-TRMPBF | DFN-8_DDB_LIT | U8 |
| 3 | PCMF3USB3S | Nexperia_WLCSP-15_6-3-6_2.37x1.17mm_Layout6x3_P0.4mm | U9, U10, U40 |
| 3 | AOZ1353DI-01 | DFN-12-1EP_3x3mm_P0.5mm_EP1.6x2.5mm | U11, U12, U13 |
| 2 | PAM2310BECADJR | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U14, U15 |
| 7 | FXMA2102L8X | MICROPAK8_1P6X1P6_ONS | U16, U17, U18, U41, U45, U51, U52 |
| 3 | D3V3F4U10LP-7 | DFN10_U-DFN2510-10_DIO | U19, U28, U46 |
| 1 | INA219BXD INA219BxD | SOT-23-8 | U20 |
| 10 | D3V3F4U10LP-7 | DFN10_U-DFN2510-10_DIO | U21, U23, U24, U25, U29, U44, U47, U48 +2 |
| 1 | PCMF3USB3S PCMF1USB3SZ | BGA5N35P3X2_109X74X40N | U22 |
| 1 | STM32H523CCUX F2800157SPMR | LQFP-64-1EP_10x10mm_P0.5mm_EP6.5x6.5mm | U26 |
| 1 | CAT250XXX-HU4 CAT250xxx-HU4 | DFN-8-1EP_3x2mm_P0.5mm_EP1.75x1.45mm | U27 |
| 1 | NAU88C22YG | QFN50P500X500X80-33N | U30 |
| 1 | FT4232H | VQFN-64-1EP_9x9mm_P0.5mm_EP5.4x5.4mm | U31 |
| 3 | SN74AVC4T774RSVR | UQFN-16_1.8x2.6mm_P0.4mm | U32, U34, U55 |
Show 105 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ISO1044BD | SOIC-8_3.9x4.9mm_P1.27mm | U33, U38 |
| 1 | 93LCXXB 93LCxxB | DFN-8-1EP_3x2mm_P0.5mm_EP1.7x1.4mm | U35 |
| 2 | PESD2IVN24-T | SOT-23-3 | U36, U39 |
| 2 | NTE0505MC | NTE_SINGLE_M_MUR-L | U42, U43 |
| 1 | SN74AVC4T774RSVR | UQFN-16_1.8x2.6mm_P0.4mm | U53 |
| 1 | SC4215A | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U54 |
| 1 | TUSB321 | Texas_X2QFN-12_1.6x1.6mm_P0.4mm | U56 |
| 1 | IRLML6244TRPBF | SOT-23-3 | Q1 |
| 2 | NTMFS5C670NLT1G | NTMFS5C670NLT1G_ONS | Q2, Q3 |
| 1 | NTZD3154NT1G | SOT-563 | Q4 |
| 1 | Q_DUAL_NMOS_S1G1D2S2G2D1 Q_Dual_NMOS_S1G1D2S2G2D1 | SOT-563 | Q5 |
| 3 | 25MHZ 25MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2, Y4 |
| 1 | 12MHZ 12MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y3 |
| 2 | DF40C-80DP-0.4V_51_ | HRS_DF40C-80DP-0.4V_51_ | J1, J26 |
| 2 | Front_Right | HRS_DF40C-100DP-0.4V_51_ | J2, J31 |
| 2 | MCU-Serial | PinHeader_2x04_P2.54mm_Vertical | J3, J30 |
| 1 | Conn_02x25_Odd_Even | PinSocket_2x25_P2.54mm_Vertical | J4 |
| 2 | RJ45_JK0654219 | BEL_A829-1J1T-KM | J5, J6 |
| 1 | HDMI_A | HDMI_A_Molex_208658-1001_Horizontal | J7 |
| 1 | Bus_PCI_Express_Mini | BUS_PCI_Express_Mini | J8 |
| 1 | GSB311231HR | AMPHENOL_GSB311231HR | J9 |
| 1 | Barrel_Jack | BarrelJack_CUI_PJ-063AH_Horizontal | J10 |
| 1 | SIM_Card | nanoSIM_Hinged_CUI_NSIM-2-C | J11 |
| 1 | CAM_1 | 687124182122 | J12 |
| 1 | CAM_2 | 687124182122 | J13 |
| 1 | USB_C_Receptacle | USB_C_Receptacle_Molex_105450-0101 | J14 |
| 1 | DSI | Hirose_FH12-24S-0.5SH_1x24-1MP_P0.50mm_Horizontal | J15 |
| 1 | LVDS | Hirose_FH12-40S-0.5SH_1x40-1MP_P0.50mm_Horizontal | J17 |
| 1 | MIC IN-Pink | SJ1-3535NG-PI | J18 |
| 1 | Head Out -Green | SJ1-3535NG-PI | J19 |
| 1 | Line -in -Blue | SJ1-3535NG-PI | J20 |
| 1 | AUX OUT -Black | SJ1-3535NG-PI | J21 |
| 1 | SD_Card_Receptacle | SD_Hirose_DM1AA_SF_PEJ82 | J22 |
| 1 | USB_C_Receptacle | USB_C_Receptacle_GCT_USB4110 | J23 |
| 1 | CAN_1 | PinSocket_1x04_P2.54mm_Vertical | J24 |
| 1 | CAN_2 | PinSocket_1x04_P2.54mm_Vertical | J25 |
| 2 | CONN_02X15_ODD_EVEN Conn_02x15_Odd_Even | PinHeader_2x16_P2.54mm_Vertical | J28, J29 |
| 1 | FB 10A 36R@100MHz | FB_35F0121-0SR-10 | F1 |
| 1 | ON/OFF | SW_SPST_TL3342 | SW1 |
| 1 | RESET | SW_SPST_TL3342 | SW2 |
| 1 | BOOT_MODE | SW_DIP_SPSTx04_Slide_9.78x12.34mm_W7.62mm_P2.54mm | SW3 |
| 1 | NRST | SW_SPST_TL3342 | SW4 |
| 1 | SMAJ30CA | D_SMA | D1 |
| 7 | GREEN | LED_0402_1005Metric | D2, D3, D4, D11, D12, D15, D16 |
| 6 | D5V0L1B2S9-7 | D_SOD-923 | D5, D6, D7, D8, D13, D14 |
| 2 | SS3200 | D_SOD-923 | D9, D10 |
| 2 | ESD9101P2T5G | D_SOD-923 | D17, D19 |
| 3 | 220R@100MHz | L_0603_1608Metric | FB1, FB2, FB3 |
| 9 | 120R@100MHz | L_0603_1608Metric | FB4, FB5, FB6, FB7, FB8, FB9, FB10, FB11 +1 |
| 1 | 2.2UH_12A 2.2uH_12A | IND_PA4342.222NLT | L1 |
| 1 | 1.5UH_16A 1.5uH_16A | IND_PA4342.222NLT | L2 |
| 1 | 2.2UH_4A 2.2uH_4A | IND_SRP4020TA-1R0M_BRN | L3 |
| 1 | 2.2UH_4.8A 2.2uH_4.8A | IND_SRP4020TA-1R0M_BRN | L4 |
| 2 | 120R@10MHz | FIL_EXC-14CH120U | L5, L6 |
| 10 | 12R@100MHz | FIL_EXC-14CH120U | L7, L8, L9, L10, L11, L12, L13, L14 +2 |
| 2 | 16PF 12Pf | C_0402_1005Metric | C1, C2 |
| 8 | 47UF 47uF | C_0805_2012Metric | C3, C7, C8, C9, C21, C22, C23, C24 |
| 105 | 100NF 100nF | C_0402_1005Metric | C4, C6, C10, C12, C18, C19, C26, C27 +97 |
| 1 | 2.2NF 2.2nF | C_0805_2012Metric | C5 |
| 11 | 10UF 10uF | C_0402_1005Metric | C11, C29, C81, C91, C95, C99, C140, C157 +3 |
| 9 | 1UF 1uF | C_0402_1005Metric | C13, C131, C132, C133, C134, C135, C136, C137 +1 |
| 6 | 10UF 10uF | C_1210_3225Metric | C14, C15, C16, C20, C139, C188 |
| 2 | 4.7UF 4.7uF | C_0603_1608Metric | C17, C25 |
| 10 | 1NF 1nF | C_0402_1005Metric | C38, C39, C45, C46, C50, C58, C64, C155 +2 |
| 11 | 4.7UF 4.7uF | C_0402_1005Metric | C40, C112, C114, C115, C116, C119, C122, C161 +3 |
| 6 | 100UF 100uF | C_1210_3225Metric | C48, C49, C56, C57, C194, C195 |
| 3 | 10UF 10uF | C_0603_1608Metric | C52, C53, C59 |
| 3 | 22UF 22uF | C_0402_1005Metric | C62, C72, C202 |
| 6 | 12PF 12Pf | C_0402_1005Metric | C65, C66, C172, C173, C189, C190 |
| 3 | 22UF 22uF | C_0805_2012Metric | C67, C69, C70 |
| 4 | 100PF 100pF | C_0402_1005Metric | C68, C71, C154, C201 |
| 5 | 4,7uF | C_0402_1005Metric | C103, C104, C106, C107, C108 |
| 9 | 220PF 220pF | C_0402_1005Metric | C109, C123, C124, C125, C126, C127, C128, C129 +1 |
| 1 | 47UF 47uF | C_0402_1005Metric | C200 |
| 1 | 100uF | C_1210_3225Metric | C208 |
| 1 | 100nF | C_0402_1005Metric | C209 |
| 2 | 10 | R_0402_1005Metric | R1, R2 |
| 28 | 100K | R_0402_1005Metric | R3, R6, R7, R9, R10, R18, R21, R23 +20 |
| 7 | 47K | R_0402_1005Metric | R4, R19, R38, R43, R48, R49, R117 |
| 1 | 8.87K | R_0402_1005Metric | R5 |
| 2 | 510K | R_0402_1005Metric | R8, R22 |
| 1 | 787K | R_0402_1005Metric | R11 |
| 2 | 80.6K | R_0402_1005Metric | R12, R14 |
| 1 | 18.2K | R_0402_1005Metric | R13 |
| 2 | 0.01 | R_1206_3216Metric | R15, R79 |
| 1 | 887K | R_0402_1005Metric | R16 |
| 6 | 100 | R_0402_1005Metric | R17, R27, R50, R51, R56, R57 |
| 1 | 15K | R_0402_1005Metric | R20 |
| 1 | 330K | R_0402_1005Metric | R28 |
| 5 | 150K | R_0402_1005Metric | R29, R30, R31, R100, R101 |
| 8 | 1K | R_0402_1005Metric | R32, R33, R36, R111, R112, R113, R116, R141 |
| 2 | 200K | R_0402_1005Metric | R34, R35 |
| 2 | 12K | R_0402_1005Metric | R37, R69 |
| 5 | 100K | R_0402_1005Metric | R39, R40, R41, R61, R85 |
| 1 | 10K | R_0402_1005Metric | R42 |
| 2 | 2.2K 2.2k | R_0402_1005Metric | R44, R45 |
| 33 | 10K | R_0402_1005Metric | R46, R47, R54, R55, R62, R63, R64, R65 +25 |
| 3 | 4.7K | R_0402_1005Metric | R52, R53, R120 |
| 1 | 6.04K 6.04k | R_0402_1005Metric | R58 |
| 3 | 0 | R_0402_1005Metric | R59, R60, R86 |
| 1 | 1M | R_0402_1005Metric | R71 |
| 4 | 150 | R_0402_1005Metric | R72, R73, R122, R123 |
| 2 | 5.1K 5.1k | R_0402_1005Metric | R77, R78 |
| 1 | 15K | R_0402_1005Metric | R84 |
| 12 | 10K | R_0603_1608Metric | R87, R130, R131, R132, R133, R134, R135, R136 +4 |
Base Board Design design files
The KiCad project lives in the WilliamSanchez/Hardware repository on GitHub; these links point at the commit this page was built from.
Base Board Design: common questions
What microcontroller does the Base Board Design use?
The Base Board Design is built around the STM32H523CCUX, from the STM32 family.
How big is the Base Board Design?
The Base Board Design measures 199.8 × 150 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Base Board Design?
492 components, from 125 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Base Board Design design files?
From the WilliamSanchez/Hardware repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Base Board Design design in my own project?
The repository has no license, so all rights stay with WilliamSanchez. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Base Board Design without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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