2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
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4 layers52 × 75 mm
Level converter
nullcrimson/level-converter- Size
- 52 × 75 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 52
- Pads
- 174
- Tracks, vias
- 169, 87
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Apr 2026
- Updated
- 12 Apr 2026
Overview
Level converter is an open-source printed circuit board by nullcrimson, from the nullcrimson/level-converter repository on GitHub. It is a 4-layer board of 52 × 75 mm with 36 parts on 52 nets, routed with 169 tracks and 87 vias.
It is built around the 74HC245D. Its parts include 18 resistors, 11 connectors, 5 capacitors and 2 ICs.
Main components
1Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 220 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17 |
| 3 | 100n | Capacitor_SMD:C_1206_3216Metric | C1, C3, C5 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R9, R18 |
| 2 | 4.7u | Capacitor_SMD:C_1206_3216Metric | C2, C4 |
| 2 | 74HC245 | Package_DIP:DIP-20_W7.62mm_Socket_LongPads | U1, U2 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J11 |
| 2 | JSTIN | Connector_JST:JST_ZH_B10B-ZR_1x10_P1.50mm_Vertical | J3, J8 |
| 2 | JSTOUT | Connector_JST:JST_ZH_B10B-ZR_1x10_P1.50mm_Vertical | J5, J10 |
| 2 | PinIN | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J2, J7 |
| 2 | PinOUT | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J4, J9 |
| 1 | Conn_01x02 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J1 |
Questions
How big is the Level converter PCB?
It measures 52 × 75 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Level converter use?
36 parts, built around the 74HC245D. 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 Level converter KiCad files?
From the nullcrimson/level-converter repository on GitHub, at the commit this page was made from: the board is level-converter.kicad_pcb and its schematic converter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Level converter design in my own project?
Its repository states no licence, so its author keeps all rights: ask nullcrimson before reusing the design.
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