

Regfile
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 60
- Pads
- 277
- Tracks, vias
- 1,100, 325
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 28 Jan 2024
- Updated
- 2 Feb 2024
Overview
Regfile is an open-source printed circuit board by emm312, from the emm312/pcb-cpu repository on GitHub. It is a 2-layer board of 100 × 100 mm with 16 parts on 60 nets, routed with 1,100 tracks and 325 vias.
It is built around the 74LS670, 74HC00D and 74HC04D, with the 74LS27P-E and 74LS32SC among its other parts. Its parts include 15 ICs and 1 connector.
Main components
574LS670
-Specialty LogicTexas Instruments74HC00D
SOP-14-40℃~+125℃ 1.5V、3.15V、4.2V 1.9V、3.7V、5.9V 100mV、400mV、400mV 2 2V~6V 4 40uA 5.2mA 5.2mA 500mV~1.8V 74HC Series 7ns@6V,50pF NAND Gate SOIC-14 Logic Gates ROHSNexperiaLogic Gates74HC04D
SOP-14-40℃~+125℃ 1 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV、400mV 14ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHSNexperiaInverters74LS27P-E
DIP-14-20℃~+75℃ 15ns@5V,15pF 2.7V 2V 3 3 400mV、500mV 74LS 800mV NOR Gate DIP-14 Logic Gates ROHSRenesas ElectronicsLogic Gates74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 74LS670 | Package_DIP:DIP-16_W7.62mm | U1, U2, U3, U4, U11, U12, U13, U14 |
| 2 | 74HC00 | Package_DIP:DIP-14_W7.62mm | U5, U7 |
| 2 | 74LS244 | Package_DIP:DIP-20_W7.62mm | U16, U17 |
| 1 | 74HC04 | Package_DIP:DIP-14_W7.62mm | U6 |
| 1 | 74LS27 | Package_DIP:DIP-14_W7.62mm | U18 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm | U8 |
| 1 | Conn_01x39_Pin | Connector_PinHeader_2.54mm:PinHeader_1x39_P2.54mm_Horizontal | J1 |
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Questions
How big is the Regfile PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Regfile use?
16 parts, built around the 74LS670, 74HC00D, 74HC04D and 74LS27P-E. 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 Regfile KiCad files?
From the emm312/pcb-cpu repository on GitHub, at the commit this page was made from: the board is regfile/regfile.kicad_pcb and its schematic bus/bus.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Regfile design in my own project?
Its repository states no licence, so its author keeps all rights: ask emm312 before reusing the design.