Transistor 8-bit Bus Output OR
About the Transistor 8-bit Bus Output OR PCB
Transistor 8-bit Bus Output OR is an open source PCB design by DragonMinded, published on GitHub. It is a 2-layer board measuring 92.7 × 58.4 mm, with 69 components from 10 distinct parts.
By type, the board carries 33 transistors, 27 resistors, 7 connectors and 2 capacitors.
From the project
Hardware and software files for the MiniDragon CPU.
Schematics, hardware simulator and software files for the MiniDragon CPU. This is a from-scratch CPU that I designed and am implementing using transistors, capacitors, resistors and diodes. The goal is to make an 8-bit CPU that could be used for general-purpose computing. There are a lot of toy instruction sets floating around on the web. I chose instead to design my own, loosely based off of the PDP and 6502. It is a single accumulator design with a pair of 16-bit stack pointers and a pair of temporary 8-bit registers. Instructions are 8 bits, operands are 8 bits from memory, temporary…
Transistor 8-bit Bus Output OR bill of materials (BOM)
69 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 33 | 2N2222 | TO-92_Inline | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +25 |
| 1 | EN | PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | A | PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | B | PinHeader_1x08_P2.54mm_Vertical | J3 |
| 1 | OUT | PinHeader_1x08_P2.54mm_Vertical | J4 |
| 3 | POWER | PinHeader_1x02_P2.54mm_Vertical | J5, J6, J7 |
| 2 | 0.1uF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2 |
| 17 | 10K | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1, R4, R5, R7, R8, R10, R11, R13 +9 |
| 9 | 1K | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2, R6, R9, R12, R15, R18, R21, R24 +1 |
| 1 | 100 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R3 |
Transistor 8-bit Bus Output OR design files
The KiCad project lives in the DragonMinded/minidragon repository on GitHub; these links point at the commit this page was built from.
Transistor 8-bit Bus Output OR: common questions
How big is the Transistor 8-bit Bus Output OR PCB?
The Transistor 8-bit Bus Output OR measures 92.7 × 58.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Transistor 8-bit Bus Output OR?
69 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Transistor 8-bit Bus Output OR design files?
From the DragonMinded/minidragon repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Transistor 8-bit Bus Output OR design in my own project?
The repository has no license, so all rights stay with DragonMinded. Use it as a reference, and ask the author before reusing the design.
More boards in minidragon
Instruction Decoder ROM Board
111.1 × 99.1 mm173 parts2LNo license17
Transistor 4-Bit Register
109.2 × 85.1 mm172 parts2LNo license17
Transistor 4-Bit Register (Parallel Connectors)
109.2 × 85.1 mm167 parts2LNo license17
8-bit Bus Output XOR
119.4 × 116.8 mm149 parts2LNo license17
2-bit Bus Output Full Adder
170.2 × 53.3 mm130 parts2LNo license17
3-bit Dynamic ROM Enhancer Extended
99.1 × 89 mm105 parts2LNo license17
Transistor 8-Bit Tri-State Circuit
63.5 × 91.4 mm84 parts2LNo license17
Carry Out Selector
61 × 83.8 mm76 parts2LNo license17
3-bit Dynamic ROM Enhancer
99.1 × 61 mm71 parts2LNo license17
Transistor 8-bit Bus-Output AND
92.7 × 58.4 mm69 parts2LNo license17
Transistor 8-bit Bus
129.5 × 45.7 mm63 parts2LNo license17