4 layers155 × 170 mm
2 layers108.3 × 12.1 mm
InputBoard
tiydwe/SRAMSRAM from scratch!
- Size
- 108.3 × 12.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 22
- Pads
- 97
- Tracks, vias
- 82, 16
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Oct 2026
- Updated
- 31 Oct 2026
Overview
InputBoard is an open-source printed circuit board by tiydwe, from the tiydwe/SRAM repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 108.3 × 12.1 mm with 36 parts on 22 nets, routed with 82 tracks and 16 vias.
Its parts include 16 switches, 10 connectors and 5 resistors.
README
README.mdSRAM from scratch
256 bytes of SRAM from discrete sot-23 mosfets built without any ICs!
I'm still working on this project!
More coming to this README eventually.
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SW_Push | Button_Switch_SMD:SW_4.5mm | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 8 | Conn_01x02_Pin | Connector_PinHeader_1.00mm:PinHeader_1x02_P1.00mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J8 |
| 5 | 0R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R4, R5 |
| 5 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1, H2, H3, H4, H5 |
| 2 | Conn_01x01_Pin | Connector_Wire:Wire_Pad_18AWG_stranded | J9, J10 |
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Questions
How big is the InputBoard PCB?
It measures 108.3 × 12.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the InputBoard use?
36 parts. 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 InputBoard KiCad files?
From the tiydwe/SRAM repository on GitHub, at the commit this page was made from: the board is kicad/inputBoard/inputBoard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the InputBoard design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).