4 layers122.3 × 96.1 mm
4 layers100 × 100 mm
Mainboard4
midarubiccube/raspberrypi-io-board2- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 232
- Nets
- 464
- Pads
- 1,309
- Tracks, vias
- 3,353, 736
- Pours
- 85
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Jun 2025
- Updated
- 24 Jun 2026
Overview
Mainboard4 is an open-source printed circuit board by midarubiccube, from the midarubiccube/raspberrypi-io-board repository on GitHub, published under the MIT licence. It is a 4-layer board of 100 × 100 mm with 232 parts on 464 nets, routed with 3,353 tracks and 736 vias.
It is built around the 74LVC1G07SE-7-MS, LAN8742A-CZ and AP64502SP, with the AP22653W6, CH221K and RT9742GGJ5 among its other parts. Its parts include 108 capacitors, 58 resistors, 12 ICs, 12 diodes and 11 connectors.
Main components
8
74LVC1G07SE-7-MS
SC-70-5SC-70-5 Buffers, Drivers, Receivers, Transceivers ROHSMSKSEMIBuffers, Drivers, Receivers, Transceivers
LAN8742A-CZ
QFN-24-EP(4x4)0℃~+70℃ 1.8V~3.3V 10BASE-T、100BASE-TX 10Mbit/s、100Mbit/s Ethernet Transceiver RMII QFN-24-EP(4x4) Ethernet Transceivers ROHSMicrochip TechnologyEthernet TransceiversAP64502SP
SO-8-EP-40℃~+125℃ 1 100kHz~2.2MHz 25uA 3.8V~40V 5A Adjustable Buck Buck Built-in Yes SO-8-EP DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
AP22653W6
SOT-26-40℃~+85℃ 1 2.1A 3V~5.5V 65mΩ Active High High Side Switch Short-Circuit Protection(SCP)、Over Voltage Protection、Undervoltage Protection(UVP)、Overcurrent Protection(OCP)、Overtemperature protection (OTP) SOT-26 Power Distribution Switches ROHSDiodes IncorporatedPower Distribution SwitchesCH221K
SOT-23-6-40℃~+105℃ 100W 5V、9V、12V、15V、20V PD 3.0 Power Receiver Controller SOT-23-6 USB PD ROHSWCH (Nanjing Qinheng Microelectronics)USB PD
RT9742GGJ5
TSOT-23-5-40℃~+85℃ 1 1A 2.7V~6V 70mΩ Active High High Side Switch Short-Circuit Protection(SCP)、Undervoltage Protection(UVP)、Overcurrent Protection(OCP)、Over Temperature Protection TSOT-23-5 Power Distribution Switches ROHSRichtek TechPower Distribution Switches
H5VU25U
DFN2510-10L-55℃~+125℃ 0.5pF 14V 1uA 4A 56W 5V 6V Four channels IEC 61000-4-2、IEC 61000-4-5 TVS Unidirectional DFN2510-10L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)RJMG201K21120FR
插件Ethernet Connectors / Modular Connectors (RJ45 RJ11)Amphenol
README
README.mdraspberrypi-io-board
基板画像
概要
- USB PD or 12V DC jack(40Vまで許容)
- 12v-5v, 12v-3.3v, 5v-1.2v DCDCコンバータ搭載
- USB3.0*2
- USB2.0*2
- M.2 M key (NVME SSDのみ)
- M.2 E key
- gigabit ethernet
- hd*iっぽいなにかの端子
- SDカードスロット
- stm32H723VGT6 搭載
- CANFD*2
- stm32 debug用コネクタ
Parts
232| Qty | Value | Footprint | References |
|---|---|---|---|
| 43 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2, C3, C4, C6, C12, C16, C43, C45, C61, C62, C63, C100, C101, C102, C103 +27 |
| 10 | 0.1μF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C9, C11, C15, C44, C48, C49, C56, C57, C58, C59 |
| 8 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R6, R35, R36 |
| 8 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C19, C20, C21, C22, C32, C33, C34, C35 |
| 6 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23, C36, C46, C47, C54, C55 |
| 6 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C7, C13, C25, C26, C29 |
| 6 | 100kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R9, R41, R42, R50, R51 |
| 6 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4, D5, D6, D7, D8, D9 |
| 5 | 10kΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R16, R22, R40, R55, R56 |
| 4 | 100n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C17, C60, C104, C105 |
| 4 | 10KΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14, R21, R26, R33 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C10, C40, C83, C88 |
| 4 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C72, C73, C74, C75 |
| 4 | 10μF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C24, C30, C37, C39 |
| 4 | 15pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C52, C53, C84, C92 |
| 4 | 33Ω | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R15, R18, R29, R32 |
| 4 | 49.9Ω | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R19, R23, R25, R28 |
| 3 | 0.1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C106, C107, C108 |
| 3 | 12.1K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R43, R49, R53 |
| 3 | 4.7kΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R45, R46, R47 |
| 3 | LED Green | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D10, D11 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1, TP2, TP3 |
| 2 | , | ||
| 2 | 0.01uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C27, C38 |
| 2 | 0.01uF | Capacitor_SMD:C_0603_1608Metric | C14, C28 |
| 2 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-7343-30_AVX-N_Pad2.25x2.55mm_HandSolder | C18, C31 |
| 2 | 120Ω | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R30, R31 |
| 2 | 200 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20, R24 |
| 2 | 25Mhz | Crystal:Crystal_SMD_SeikoEpson_FA128-4Pin_2.0x1.6mm | Y2, Y3 |
| 2 | 4.7K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R44, R48 |
| 2 | 470R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R57, R58 |
| 2 | 5.1kΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12, R13 |
| 2 | ASEK-32.768KHZ-L-R-T | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | U4, U12 |
| 2 | Conn_01x04_Pin | CM5IO:pocketheader4 | J3, J4 |
| 2 | FerriteBead | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1, FB2 |
| 2 | H5VU25U | Package_DFN_QFN:Diodes_UDFN-10_1.0x2.5mm_P0.5mm | D12, D13 |
| 2 | MCP2562-E-SN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U10, U11 |
| 2 | MountingHole | CM5IO:MountingHole_2.7mm_M2.5_DIN965 | H1, H2 |
| 1 | 1.5KΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R17 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R38 |
| 1 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C42 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27 |
| 1 | 10kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R34 |
| 1 | 12Mhz | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y4 |
| 1 | 15K 1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 16Mhz | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R37 |
| 1 | 1kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C87 |
| 1 | 1μF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C50 |
| 1 | 1μF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C41 |
| 1 | 2.2uH | Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L3 |
| 1 | 2.49kΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R52 |
| 1 | 22pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C91 |
| 1 | 31.6kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R39 |
| 1 | 470p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C51 |
| 1 | 47kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
| 1 | 51.2kΩ | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R54 |
| 1 | 6.8 | CM5IO:INDPM7066X300N | L1 |
| 1 | 6.8uH | CM5IO:INDPM7066X300N | L2 |
| 1 | 690-019-298-412 | CM5IO:EDAC 690-019-298-412 | J11 |
| 1 | 74LVC1G07SE-7 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U1 |
| 1 | AP22653W6 | Package_TO_SOT_SMD:SOT-23-6 | U7 |
| 1 | AP3445LW6-7 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U14 |
| 1 | AP64502 | CM5IO:SOIC127P600X163-9N | U6 |
| 1 | AP64502QSP-13 | CM5IO:SOIC127P600X163-9N | U5 |
| 1 | Barrel_Jack | CM5IO:BarrelJack_Horizontal | J9 |
| 1 | Bus_M.2_Socket_E | CM5IO:M.2 E Key socket | J7 |
| 1 | Bus_M.2_Socket_M | CM5symbol:M.2 M Key socket | J2 |
| 1 | CH221K | Package_TO_SOT_SMD:SOT-23-6 | U8 |
| 1 | Compute Module 5 | CM5IO:Raspberry-Pi-5-Compute-Module | Module1 |
| 1 | Conn_01x22_Female | CM5symbol:Hirose_FH12-22S-0.5SH_1x22-1MP_P0.50mm_Horizontal | J15 |
| 1 | Conn_02x07_Odd_Even | CM5symbol:connector | J1 |
| 1 | JST_SHBM04B-SRSS-TB | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J6 |
| 1 | LAN8742A | Package_DFN_QFN:VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U9 |
| 1 | LED Red | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LOGO | CM5IO:raspberrypi | G*** |
| 1 | Micro_SD_Card_Det | CM5IO:DM3ATSFPEJM542 | J14 |
| 1 | RJMG201K21120FR | CM5symbol:AMPHENOL_RJMG201K21120FR | J10 |
| 1 | RT9742GGJ5 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
The 219 most common of 232 parts.
Questions
How big is the Mainboard4 PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mainboard4 use?
232 parts, built around the 74LVC1G07SE-7-MS, LAN8742A-CZ, AP64502SP and AP22653W6. 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 Mainboard4 KiCad files?
From the midarubiccube/raspberrypi-io-board repository on GitHub, at the commit this page was made from: the board is mainboard4.kicad_pcb and its schematic CANFD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mainboard4 design in my own project?
Its repository publishes it under the MIT 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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