4 layers155 × 170 mm
4 layers150 × 150.6 mm
ControllerBoard
tiydwe/SRAMSRAM from scratch!
- Size
- 150 × 150.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 784
- Nets
- 447
- Pads
- 2,292
- Tracks, vias
- 6,124, 601
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Oct 2026
- Updated
- 31 Oct 2026
Overview
ControllerBoard 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 4-layer board of 150 × 150.6 mm with 784 parts on 447 nets, routed with 6,124 tracks and 601 vias.
It is built around the MUR1560FAC. Its parts include 652 transistors, 61 resistors, 49 capacitors, 16 diodes and 2 connectors.
Main components
1README
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
784| Qty | Value | Footprint | References |
|---|---|---|---|
| 334 | Q_NMOS_GSD | easyeda2kicad:SOT-23-N | Q10, Q12, Q100, Q102, Q104, Q106, Q108, Q110, Q112, Q114, Q116, Q118, Q120, Q122, Q124, Q126 +318 |
| 318 | Q_PMOS_GSD | easyeda2kicad:SOT-23-P | Q1, Q11, Q101, Q103, Q105, Q107, Q109, Q111, Q113, Q115, Q117, Q119, Q121, Q123, Q125, Q127 +302 |
| 22 | 47R | Resistor_SMD:R_0805_2012Metric | R21, R23, R25, R27, R30, R33, R36, R38, R40, R42, R43, R44, R45, R46, R49, R50 +6 |
| 21 | 100nC | Capacitor_SMD:C_0805_2012Metric | C10, C11, C13, C14, C15, C16, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 +5 |
| 18 | 10kR | Resistor_SMD:R_0805_2012Metric | R5, R6, R7, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R22, R39 +2 |
| 17 | 100nC | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C35, C36, C37, C38, C39, C40, C41, C42, C43, C44, C45, C46, C47, C48, C49 +1 |
| 12 | MUR1560FAC | Package_TO_SOT_THT:TO-220-2_Vertical | D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 5 | C_Polarized | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C30, C31, C32, C33, C34 |
| 4 | 0R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R4 |
| 4 | 100uC_Polarized | Capacitor_SMD:CP_Elec_6.3x7.7 | C1, C2, C3, C4 |
| 4 | 10R | Resistor_SMD:R_0805_2012Metric | R47, R48, R53, R54 |
| 4 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4 |
| 4 | 1R | Resistor_SMD:R_0805_2012Metric | R24, R41, R59, R60 |
| 4 | 4.7R | Resistor_SMD:R_0805_2012Metric | R28, R31, R34, R37 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 2 | 4.7kR | Resistor_SMD:R_0805_2012Metric | R29, R35 |
| 2 | 4.7uC | Capacitor_SMD:C_0805_2012Metric | C12, C17 |
| 2 | Conn_02x20_Top_Bottom | Connector_IDC:IDC-Header_2x20_P2.54mm_Horizontal | J1, J2 |
| 1 | 100kR | Resistor_SMD:R_0805_2012Metric | R26 |
| 1 | 470R | Resistor_SMD:R_0805_2012Metric | R61 |
| 1 | 47kR | Resistor_SMD:R_0805_2012Metric | R32 |
Questions
How big is the ControllerBoard PCB?
It measures 150 × 150.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ControllerBoard use?
784 parts, built around the MUR1560FAC. 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 ControllerBoard KiCad files?
From the tiydwe/SRAM repository on GitHub, at the commit this page was made from: the board is kicad/controllerBoard/controllerBoard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ControllerBoard 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).
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