

2bitAdder
2-bit Adder PCB
- Size
- 53.3 × 71.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 19
- Pads
- 86
- Tracks, vias
- 236, 4
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 14 Nov 2017
- Updated
- 14 Nov 2017
Overview
2bitAdder is an open-source printed circuit board by VectorSpaceHQ, from the VectorSpaceHQ/2bitAdder repository on GitHub. It is a 2-layer board of 53.3 × 71.1 mm with 24 parts on 19 nets, routed with 236 tracks and 4 vias.
It is built around the 74LS32SC and 74LS386PC. Its parts include 7 resistors, 4 switches, 3 ICs, 3 diodes and 1 connector.
Main components
2README
README.md2-bit Adder
2-bit Adder printed circuit board designed with KiCad.

Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10K | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R6, R7 |
| 4 | SW_Push | Buttons_Switches_THT:SW_PUSH_6mm | SW1, SW2, SW3, SW4 |
| 3 | 220 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R4, R5 |
| 3 | LED | LEDs:LED_D5.0mm | D1, D2, D3 |
| 1 | 74LS08 | Housings_DIP:DIP-14_W7.62mm_LongPads | U2 |
| 1 | 74LS32 | Housings_DIP:DIP-14_W7.62mm_LongPads | U3 |
| 1 | 74LS386 | Housings_DIP:DIP-14_W7.62mm_LongPads | U1 |
| 1 | Conn_01x02_Male | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J1 |
The 18 most common of 24 parts.
Questions
How big is the 2bitAdder PCB?
It measures 53.3 × 71.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 2bitAdder use?
24 parts, built around the 74LS32SC and 74LS386PC. 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 2bitAdder KiCad files?
From the VectorSpaceHQ/2bitAdder repository on GitHub, at the commit this page was made from: the board is 2bitAdder.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 2bitAdder design in my own project?
Its repository states no licence, so its author keeps all rights: ask VectorSpaceHQ before reusing the design.
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