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2 layers129 × 24.6 mmScalingFactor, the printed circuit board in 3D

A DIY 8-bit computer built mostly with discrete logic chips

Size
129 × 24.6 mm
Copper layers
2
Thickness
1.6 mm
Parts
14
Nets
39
Pads
165
Tracks, vias
825, 76
Pours
2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
20 Apr 2021
Updated
9 Nov 2022

Overview

ScalingFactor is an open-source printed circuit board by Trilobyte-CPU, from the Trilobyte-CPU/8-bit-computer repository on GitHub. It is a 2-layer board of 129 × 24.6 mm with 14 parts on 39 nets, routed with 825 tracks and 76 vias.

It is built around the 74LS245SC. Its parts include 6 ICs, 4 connectors and 3 capacitors.

Main components

1

Parts

14
QtyValueFootprintReferences
674LS245Package_SO:SO-20_5.3x12.6mm_P1.27mmU1, U2, U3, U4, U5, U6
3C_SmallCapacitor_SMD:C_0805_2012MetricC1, C2, C3
2Conn_01x16Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_VerticalJ3, J4
1Conn_01x02Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ1
1Conn_01x05Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_VerticalJ2

The 13 most common of 14 parts.

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Questions

How big is the ScalingFactor PCB?

It measures 129 × 24.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the ScalingFactor use?

14 parts, built around the 74LS245SC. 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 ScalingFactor KiCad files?

From the Trilobyte-CPU/8-bit-computer repository on GitHub, at the commit this page was made from: the board is PCBs/99_IN PROGRESS/Displacement/SPR-Displacement-ScalingFactor/ScalingFactor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the ScalingFactor design in my own project?

Its repository states no licence, so its author keeps all rights: ask Trilobyte-CPU before reusing the design.