Viaduct
About the Viaduct PCB
Viaduct is an open source PCB design by nrivard, published on GitHub under the MIT license. It is a 2-layer board measuring 76.2 × 43.2 mm, with 8 components from 7 distinct parts.
Other key parts include the 65C22S. By type, the board carries 4 connectors, 2 resistors, 1 IC and 1 capacitor.
It belongs with the usb & debug tools designs in this gallery.
From the project
65C02 Microcomputer
The n8 Bit Microcomputer is a homebrew breadboard computer built around a WDC65C02 8-bit CPU. If you are looking for the software that runs on this computer, check out LmaOS.
The n8 Bit was originally a breadboard computer based on the Ben Eater series of 6502 videos but with some added capabilities including ACIA support, GAL-based address decoding logic, and a power chip for more reliable reset and power-on. Since then, PCBs have been printed and development around the computer is based on these.
Main components on the Viaduct
Viaduct bill of materials (BOM)
8 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 65C22S | DIP-40_W15.24mm_Socket | U1 |
| 1 | n8 Bus Connector | PinHeader_2x16_P2.54mm_Horizontal | J1 |
| 1 | GPIO | PinSocket_2x12_P2.54mm_Horizontal | J2 |
| 1 | PORT_A_PULLUP_DOWN | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | PORT_B_PULLUP_DOWN | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | 100nf | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1 |
| 2 | 3K3 | R_Array_SIP9 | RN1, RN2 |
Viaduct design files
The KiCad project lives in the nrivard/n8-Bit repository on GitHub; these links point at the commit this page was built from.
Viaduct: common questions
How big is the Viaduct PCB?
The Viaduct measures 76.2 × 43.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Viaduct?
8 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Viaduct design files?
From the nrivard/n8-Bit repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Viaduct design in my own project?
Yes, under the terms of its MIT license, which nrivard chose for the repository.
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