9 open source boards using the 74LS173
Real designs built with the 74LS173, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Eda designs
kyllikki
237.5 × 171.5 mm148 parts2LMIT32
AVR/ArduinoNova 1200 front panel
ForgottenMachines
397.5 × 119.4 mm203 parts2LNo license5- schematic only · 278 parts
ARCADE
antongale
278 parts2LNo license3 
8bitCPU
BrainwashAlpha
246.4 × 185.4 mm277 parts4LNo license1
Hol-1 Memory Management Unit
agben
106.7 × 76.2 mm37 parts2LNo license1
8bit-Sch old-
Arvind595
246.4 × 185.4 mm277 parts4LNo license0
MemoryModule
crempp
197.8 × 80 mm97 parts2LNo license4
Hol-1 8-bit CPU - Registers A, B and C
109.2 × 78.7 mm26 parts2LNo license1
SAP-Plus ALU
TomNisbet
102 × 96 mm35 parts2LMIT10
The 74LS173 in open source designs
The gallery holds 9 open source boards using the 74LS173 from 8 GitHub repositories; a typical one measures about 217.6 × 107.7 mm and carries around 148 components.
78% are two-layer designs, the rest use four layers or more, and 22% carry an open source license.
The most starred is Eda designs by kyllikki.
Parts used alongside the 74LS173
Microcontrollers on boards using the 74LS173
What boards using the 74LS173 are built for
74LS173: common questions
Where can I find a 74LS173 reference design?
Each of the 9 boards on this page is a real design using the 74LS173. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the 74LS173?
The 74LS245, 74LS04, 74LS08, 74LS157 and 74LS138 appear in the most repositories here.
Which microcontrollers do boards using the 74LS173 use?
Most are built on AVR/Arduino (1).
How big is a typical board using the 74LS173?
The median is 217.6 × 107.7 mm, and 78% are two-layer designs.
What is the most popular open source board using the 74LS173?
By GitHub stars, Eda designs by kyllikki, with 32 stars.
Can I simulate one of these boards using the 74LS173 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.