2 layers121.9 × 121.9 mm
2 layers121.9 × 121.9 mm
Registers StackPointer
DutchMaker/DM-02148-bit computer built (almost) entirely out of TTL logic chips
- Size
- 121.9 × 121.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 176
- Pads
- 444
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 Sep 2019
- Updated
- 15 Jul 2022
Overview
Registers StackPointer is an open-source printed circuit board by DutchMaker, from the DutchMaker/DM-02 repository on GitHub. It is a 2-layer board of 121.9 × 121.9 mm with 23 parts on 176 nets.
It is built around the 74HC245D, 74HCT240D and 74HCT574D, with the 74HCT02D and 74HCT32D among its other parts.
Main components
5
74HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers74HCT240D
SO-20-300mil-40℃~+125℃ 1 160uA 4.5V~5.5V 6mA 6mA 74HCT 8 9ns@5V,15pF Output enable Tri-State SO-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74HCT574D
SO-20-300mil-40℃~+125℃ 1 18ns@4.5V,50pF 3.5pF 3ns 4.5V~5.5V 5ns 69MHz 6mA 6mA 74HCT Series 8 8uA D-Type Rising Edge Tri-State SOIC-20-300mil Flip Flops ROHSNexperiaFlip Flops
74HCT02D
SO-14-40℃~+125℃ 19ns@4.5V,50pF 2 2V 2uA 3.7V 4 4.5V~5.5V 400mV 4mA 4mA 74HCT Series 800mV NOR Gate Overvoltage-tolerant input SOIC-14 Logic Gates ROHSNexperiaGates74HCT32D
SO-14-40℃~+125℃ 2 24ns@4.5V,50pF 2V 2uA 3.7V、4.4V 4 4.5V~5.5V 400mV 4mA 4mA 74HCT Series 800mV OR Gate SOIC-14 Logic Gates ROHSNexperiaGates
README
README.mdDM-02 8-Bit Computer
Pronounced: "Dee-Em Zero Two"
An 8-bit computer built (almost) entirely out of TTL logic chips
This project started in September 2019 and is currently in progress.
Please refer to the documentation for the project status.
Start by reading the introduction
If you would like to see the computer in action, the best I can offer you now is the DM-02 Emulator while the electronic version is under development.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 74HCT574 | Package_DIP:DIP-20_W7.62mm | U3, U5, U6, U9, U11, U14 |
| 4 | 74HC245 | Package_DIP:DIP-20_W7.62mm | U10, U15, U16, U17 |
| 4 | 74LS191 | Package_DIP:DIP-16_W7.62mm | U7, U8, U12, U13 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | Conn_02x32_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x32_P2.54mm_Vertical | BUS1, BUS2 |
| 1 | 74HCT02 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | 74HCT240 | Package_DIP:DIP-20_W7.62mm | U2 |
| 1 | 74HCT32 | Package_DIP:DIP-14_W7.62mm | U4 |
Questions
How big is the Registers StackPointer PCB?
It measures 121.9 × 121.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Registers StackPointer use?
23 parts, built around the 74HC245D, 74HCT240D, 74HCT574D and 74HCT02D. 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 Registers StackPointer KiCad files?
From the DutchMaker/DM-02 repository on GitHub, at the commit this page was made from: the board is Circuits/KiCad/Registers-StackPointer/Registers-StackPointer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Registers StackPointer design in my own project?
Its repository states no licence, so its author keeps all rights: ask DutchMaker before reusing the design.
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