2 layers100 × 90 mm
2 layers12 × 12 mm
- Size
- 12 × 12 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 15
- Nets
- 29
- Pads
- 87
- Tracks, vias
- 42, 7
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Jul 2023
- Updated
- 27 Oct 2026
Overview
C2uu is an open-source printed circuit board by McbeEringi, from the McbeEringi/pcb-stuff repository on GitHub, published under the MIT licence. It is a 2-layer board of 12 × 12 mm with 15 parts on 29 nets, routed with 42 tracks and 7 vias.
It is built around the CH340E and 74LVC1G3157. Its parts include 7 resistors, 2 capacitors, 2 ICs, 2 diodes and 2 connectors.
Main components
2Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 4k7 | Resistor_SMD:R_0603_1608Metric | R1, R2, R5 |
| 2 | 0u1 | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R4, R6 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 56k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 74LVC1G3157 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U2 |
| 1 | BZB784-Cxx | Package_TO_SOT_SMD:SOT-323_SC-70 | D2 |
| 1 | CH340E | Package_SO:MSOP-10_3x3mm_P0.5mm | U1 |
| 1 | TNOW | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | USB_C_Plug | Library:USB_C_Plug_24P | P1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
Questions
How big is the C2uu PCB?
It measures 12 × 12 mm and has 2 copper layers, 1 mm thick.
What parts does the C2uu use?
15 parts, built around the CH340E and 74LVC1G3157. 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 C2uu KiCad files?
From the McbeEringi/pcb-stuff repository on GitHub, at the commit this page was made from: the board is proj/usb/c2uu/c2uu.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the C2uu 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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