2 layers160 × 100 mm
RDE board
bartkepl/RDE_board
Resistance DEcade with SCPI, UART, USB, RS485 and ETHERNET in 3U eurocard format
388 partsMIT
4 layers56.8 × 100 mm
UCB board
bartkepl/UCB_boardControl board for testing concepts with SCPI, UART, USB, RS485 and ETHERNET in pseudo 3U eurocard format
- Size
- 56.8 × 100 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 202
- Nets
- 211
- Pads
- 894
- Tracks, vias
- 2,134, 863
- Pours
- 505
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Mar 2026
- Updated
- 28 Sep 2026
Overview
UCB board is an open-source printed circuit board by bartkepl, from the bartkepl/UCB_board repository on GitHub, published under the MIT licence. It is a 4-layer board of 56.8 × 100 mm with 202 parts on 211 nets, routed with 2,134 tracks and 863 vias.
It is built around the USBLC6-2SC6, FM24C64B-G and SN65HVD75DR, with the W5500, FYLS-1206PGC and ESD5Z3.3T1G among its other parts. Its parts include 74 capacitors, 35 resistors, 35 diodes, 8 ICs and 5 crystals. It belongs with the interfaces and adapters boards and the STM32 boards of this library.
Main components
12
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
FM24C64B-G
-SOIC-8 FRAM ROHSInfineon TechnologiesFRAM
SN65HVD75DR
SOP-8SOP-8 RS-485 / RS-422 ICs ROHSElecSuperRS-485 / RS-422 ICs
W5500
LQFP-48_7x7-40℃~+85℃ 10BASE-T、100BASE-TX 3.3V 32KB SPI SPI Wake-up function、Programmable LED indication、Low-power mode Yes LQFP-48(7x7) Ethernet Controllers ROHSWIZNETEthernet ControllersFYLS-1206PGC
-UncategorisedFORYARD
ESD5Z3.3T1G
SOD-523-55℃~+125℃ 1 110pF 11A 14V 150W 200nA 3.3V 5V ESD IEC 61000-4-2、IEC 61000-4-4 Unidirectional SOD-523 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
LQH32PN101MN0L
1210100uH 180mA 250mA 3.24Ω Consumer grade ±20% 1210 Inductors (SMD) ROHSMurataPower Inductors
BZD27C12P-E3-08
DO-219ABZener DiodesVishay Intertechnology
SMF5.0CA
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiacheng
TGL34-15CA
DO-213AA-50℃~+150℃ 12.8V 14.3V 150W 1uA 21.2V 7.1A Bidirectional TVS DO-213AA ESD and Surge Protection (TVS/ESD) ROHSDIOTECESD And Surge Protection (TVS/ESD)
CDSOT23-SM712
SOT-23-55℃~+125℃ 13.3V 150W 15V、25V 500nA 75pF 7A 7V、12V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSGOODWORKESD And Surge Protection (TVS/ESD)
H1102NL
SMD-16PXFMR-SMD New Arrivals ROHSPulse ElecUncategorised
README
README.mdUCB (Universal Control Board)
Control board for testing concepts with SCPI, UART, USB, RS485 and ETHERNET in 3U eurocard format
| Top | Bottom |
|---|---|
 |  |
Status: ready for prototype order
- Schematic and PCB layout done (4-layer, 56.8 × 100 mm), production files generated.
- Design review completed; DRC/ERC clean (remaining items reviewed and excluded as by-design).
- W5500 clock is sourced from the MCU (MCO1) by default — R80 fitted, R23 (Si5351C CLK0) DNP.
- Firmware: STM32CubeMX skeleton only.
Production outputs: schematic PDF · PCB PDF · interactive BOM · gerbers
Features:
- ARM Cortex-M33 Processor in LQFP100 (STM32H563VIT6)
- USB 2.0
- 10/100 Ethernet (based on WIZnet W5500)
- UART
- Half-duplex RS485
- 3U eurocard IEEE 1101.1-1998 format (160x100 mm) — this 56.8 × 100 mm backend board is combined with a 100 × 100 mm front module (e.g. SSM_board)
License and Contribution
Open to contributions in both software and hardware!
Parts
202| Qty | Value | Footprint | References |
|---|---|---|---|
| 40 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C11, C12, C13, C14, C15, C16, C17, C23, C24, C26, C28, C29, C32, C33 +24 |
| 21 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP10, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22 +5 |
| 16 | UT8413A | Package_DFN_QFN:Diodes_UDFN-10_1.0x2.5mm_P0.5mm | D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31, D32, D33, D34, D35 |
| 13 | 10u | Capacitor_SMD:C_1206_3216Metric | C18, C21, C22, C30, C31, C34, C36, C43, C47, C48, C51, C62, C67 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R21, R84, R85, R90, R91 |
| 6 | FYLS-1206PGC | LED_SMD:LED_0603_1608Metric | D1, D2, D4, D6, D13, D14 |
| 5 | 0R | Resistor_SMD:R_0402_1005Metric | R23, R24, R25, R26, R80 |
| 5 | ESD5Z3.3T1G | Diode_SMD:D_SOD-523 | D3, D5, D10, D16, D17 |
| 4 | 10n | Capacitor_SMD:C_0603_1608Metric | C4, C7, C10, C27 |
| 4 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C25, C40, C44, C72 |
| 4 | 18p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6, C8, C19, C20 |
| 4 | 33 | Resistor_SMD:R_0603_1608Metric | R14, R15, R16, R17 |
| 4 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1mm | FID1, FID2, FID3, FID4 |
| 4 | LQH32PN101MN0L | Inductor_SMD:L_1210_3225Metric | L1, L2, L3, L4 |
| 4 | Polyfuse | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1, F2, F3, F4 |
| 3 | 10 | Resistor_SMD:R_0603_1608Metric | R5, R88, R89 |
| 3 | 3225-25M-SR | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2, Y4 |
| 3 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C9, C56, C57 |
| 3 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U3, U4, U5 |
| 2 | 100 @ 100MHz | Inductor_SMD:L_0603_1608Metric | FB1, FB2 |
| 2 | 120 | Resistor_SMD:R_0603_1608Metric | R86, R87 |
| 2 | 150 | Resistor_SMD:R_0603_1608Metric | R12, R13 |
| 2 | 18p | Capacitor_SMD:C_0402_1005Metric | C59, C60 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric | R20, R22 |
| 2 | 1nF/2kV | Capacitor_SMD:C_1206_3216Metric | C3, C5 |
| 2 | 22 | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 49.9 | Resistor_SMD:R_0603_1608Metric | R10, R11 |
| 2 | 4x10k | Resistor_SMD:R_Array_Convex_4x0603 | RN2, RN3 |
| 2 | 6.8n | Capacitor_SMD:C_0603_1608Metric | C73, C74 |
| 2 | 75 | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 82 | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | BZD27C12P-E3-08 | Diode_SMD:D_SMF | D9, D19 |
| 2 | SMF5.0CA | Diode_SMD:D_SMF | D7, D12 |
| 2 | TGL34-15CA | Diode_SMD:D_MiniMELF | D8, D18 |
| 1 | 12.4k | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R18 |
| 1 | 4x470R | Resistor_SMD:R_Array_Convex_4x0603 | RN1 |
| 1 | CDSOT23-SM712 | SamacSys_Parts:SOT95P230X117-3N | D15 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J3 |
| 1 | DIN41612_02x32_AC | Connector_DIN:DIN41612_C_2x32_Male_Horizontal_THT | J1 |
| 1 | FM24C64B | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | H1102NL | SamacSys_Parts:SOIC127P940X597-16N | T1 |
| 1 | LM4040DBZ-3 | Package_TO_SOT_SMD:SOT-23_Handsoldering | U2 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1 |
| 1 | SN65HVD75DR | SamacSys_Parts:SOIC127P600X175-8N | IC1 |
| 1 | STM32H563VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U7 |
| 1 | Si5351C-B-GM | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | Y3 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1 |
| 1 | TC2030 | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J2 |
| 1 | TGL34-6.8CA | Diode_SMD:D_MiniMELF | D11 |
| 1 | W5500 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | ~ | Connector:UniConnector | X1 |
The 201 most common of 202 parts.
Questions
How big is the UCB board PCB?
It measures 56.8 × 100 mm and has 4 copper layers, 1.59 mm thick.
What parts does the UCB board use?
202 parts, built around the USBLC6-2SC6, FM24C64B-G, SN65HVD75DR and W5500. 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 UCB board KiCad files?
From the bartkepl/UCB_board repository on GitHub, at the commit this page was made from: the board is pcb/UCB_board.kicad_pcb and its schematic pcb/Clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the UCB board 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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