Stack-Pointer
About the Stack-Pointer PCB
Stack-Pointer is an open source PCB design by DutchMaker, published on GitHub. It is a 2-layer board measuring 81.3 × 50.8 mm, with 9 components from 7 distinct parts.
Other key parts include the 74x02, 74x191 and 74x245. By type, the board carries 5 ICs, 2 connectors and 1 resistor.
From the project
Building a computer from scratch using 74xx logic chips
- Add ./Libraries/74xx-Computer-Symbols.lib as global Symbol library to KiCad (Eeschema) - Add ./Libraries as global Footprint library to KiCad (Pcbnew) - PCBs are initially autorouted using ./Libraries/freeRouting.jar and traces are enhanced manually
There are a number of deviations and errors that were found in schematic/PCB designs after PCB production. They are listed here if they were not fixed in the schematic/PCB design files.
Main components on the Stack-Pointer
Stack-Pointer bill of materials (BOM)
9 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74x02 | DIP-14_W7.62mm | U1 |
| 2 | 74x191 | DIP-16_W7.62mm | U2, U3 |
| 2 | 74x245 | DIP-20_W7.62mm | U4, U5 |
| 1 | Conn_01x07_Male | PinHeader_1x07_P2.54mm_Vertical | J1 |
| 1 | MEMORY ADDRESS | PinHeader_1x16_P2.54mm_Vertical | J2 |
| 1 | HDSP-4830_2 | HDSP-4830 | BAR1 |
| 1 | 470 | R_Array_SIP9 | RN1 |
Stack-Pointer design files
The KiCad project lives in the DutchMaker/TTL-computer repository on GitHub; these links point at the commit this page was built from.
Stack-Pointer: common questions
How big is the Stack-Pointer PCB?
The Stack-Pointer measures 81.3 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Stack-Pointer?
9 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Stack-Pointer design files?
From the DutchMaker/TTL-computer repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Stack-Pointer design in my own project?
The repository has no license, so all rights stay with DutchMaker. Use it as a reference, and ask the author before reusing the design.
More boards in TTL-computer
Controller
191.1 × 114.3 mm60 parts2LNo license23
Main-Board
286.4 × 484.5 mm58 parts2LNo license23
Memory-Access-Register
144.8 × 114.3 mm39 parts2LNo license23
Clock
76.2 × 68.6 mm38 parts2LNo license23
ALU
132.1 × 86.4 mm30 parts2LNo license23
Memory
149.2 × 86.4 mm29 parts2LNo license23
Flags-Register
76.2 × 55.9 mm16 parts2LNo license23
Program-Counter
81.3 × 82.6 mm15 parts2LNo license23
Register
55.9 × 52.1 mm7 parts2LNo license23
Instruction-Register
53.3 × 52.1 mm6 parts2LNo license23