2 layers139.7 × 94 mm
FullAdder
OfficialPixelBrush/PASS-2-4
A Diode-Transistor-Logic Adder System built from Scratch, with simplicity and robustness in mind
61 parts1
2 layers139.7 × 94 mm
FullAdder
OfficialPixelBrush/PASS-2-41A Diode-Transistor-Logic Adder System built from Scratch, with simplicity and robustness in mind
- Size
- 139.7 × 94 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 33
- Pads
- 111
- Tracks, vias
- 90, 12
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 2 Nov 2022
- Updated
- 21 Jul 2024
Overview
FullAdder is an open-source printed circuit board by OfficialPixelBrush, from the OfficialPixelBrush/PASS-2-4 repository on GitHub. It is a 2-layer board of 139.7 × 94 mm with 51 parts on 33 nets, routed with 90 tracks and 12 vias.
Its parts include 22 diodes, 20 resistors and 9 transistors.
README
README.mdPASS 2⁴
A Diode-Transistor-Logic Adder System built from Scratch, with simplicity and expandability in mind
Schematics
Old Adder Design
Xor Circuit Redesign for Improved Adder
Current Adder Design
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | D | Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp | D1, D2, D3, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +6 |
| 11 | 10k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R3, R4, R7, R8, R10, R11, R15, R17, R18, R19, R20 |
| 9 | Q_NPN_CBE | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 5 | 220k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R1, R5, R9, R12, R13 |
| 4 | 1k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R2, R6, R14, R16 |
Questions
How big is the FullAdder PCB?
It measures 139.7 × 94 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FullAdder use?
51 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 FullAdder KiCad files?
From the OfficialPixelBrush/PASS-2-4 repository on GitHub, at the commit this page was made from: the board is KiCadFiles/FullAdder/FullAdder.kicad_pcb and its schematic KiCadFiles/FullAdder/FullAdder.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FullAdder design in my own project?
Its repository states no licence, so its author keeps all rights: ask OfficialPixelBrush before reusing the design.
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