6 layers177.8 × 168.9 mm
LogicBoard smt
clydeshaffer/gametank
design files for the gametank hardware implementation
225 parts150
4 layers120 × 98 mm
Exbus proto
clydeshaffer/gametank150design files for the gametank hardware implementation
- Size
- 120 × 98 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 871
- Nets
- 56
- Pads
- 1,047
- Tracks, vias
- 340, 167
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Dec 2020
- Updated
- 14 Oct 2026
Overview
Exbus proto is an open-source printed circuit board by clydeshaffer, from the clydeshaffer/gametank repository on GitHub. It is a 4-layer board of 120 × 98 mm with 871 parts on 56 nets, routed with 340 tracks and 167 vias.
It is built around the 74HC00D, 74HC573 and 74HC688D, with the CD4066BE among its other parts. Its parts include 7 ICs, 6 capacitors, 6 connectors and 1 switch.
Main components
4
74HC00D
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 Gates
74HC573
SOP-20-40℃~+85℃ 14ns 1ns 2V~6V 4ns 74HC 8 8uA D Latch Tri-State SOP-20 Latches ROHSHXY MOSFETLatches
74HC688D
SOIC-20-300mil-40℃~+125℃ 0.1V 0.5V、1.35V、1.8V 1.2V、2.4V、3.2V 1.9V、4.4V、5.9V 160uA 16ns@6.0V,50pF 2V~5V SOIC-20-300mil Digital Comparators ROHSNexperiaDigital Comparators
CD4066BE
PDIP-14-55℃~+125℃ 125Ω 15ns 1:1 3V~18V 40MHz PDIP-14 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
Parts
871| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm_NumberLabels | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 6 | C | Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4, C5, C6 |
| 3 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3, J4, J5 |
| 2 | 74HC00 | Package_DIP:DIP-14_W7.62mm | U5, U9 |
| 2 | 74HC573 | Package_DIP:DIP-20_W7.62mm | U2, U3 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J6 |
| 1 | 74HC688 | Package_DIP:DIP-20_W7.62mm | U4 |
| 1 | CD4066BE | Package_DIP:DIP-14_W7.62mm | U6 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | R_Network08_US | Resistor_THT:R_Array_SIP9 | RN1 |
| 1 | SW_DIP_x08 | Button_Switch_THT:SW_DIP_SPSTx08_Slide_9.78x22.5mm_W7.62mm_P2.54mm | SW1 |
| 1 | ~ | Library:ExBus_Edge | U1 |
The 29 most common of 871 parts.
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Questions
How big is the Exbus proto PCB?
It measures 120 × 98 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Exbus proto use?
871 parts, built around the 74HC00D, 74HC573, 74HC688D and CD4066BE. 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 Exbus proto KiCad files?
From the clydeshaffer/gametank repository on GitHub, at the commit this page was made from: the board is Hardware/KiCad/exbus-proto/exbus-proto/exbus-proto.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Exbus proto design in my own project?
Its repository states no licence, so its author keeps all rights: ask clydeshaffer before reusing the design.