4 open source boards using the 74LS157
Real designs built with the 74LS157, 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.
- schematic only · 419 parts
Retro-Schematics
omega9380
419 partsMIT19 
Lomax Thunder 186 Redux
RichCini
253.6 × 137.7 mm116 parts4LNo license1
128 X 16 RAM V4 FINAL
ibm2030
180 × 95 mm108 parts4LNo license13
AVR/ArduinoZ80DMA2
lynchaj
100 × 100 mm59 parts2LNo license31
The 74LS157 in open source designs
The gallery holds 4 open source boards using the 74LS157 from 4 GitHub repositories; a typical one measures about 180 × 100 mm and carries around 112 components.
67% use four copper layers or more, and 25% carry an open source license.
The most starred is Z80DMA2 by lynchaj.
Microcontrollers on boards using the 74LS157
What boards using the 74LS157 are built for
74LS157: common questions
Where can I find a 74LS157 reference design?
Each of the 4 boards on this page is a real design using the 74LS157. 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 74LS157?
The 74LS04, 74LS244, 74LS138, 74LS175 and 74LS245 appear in the most repositories here.
Which microcontrollers do boards using the 74LS157 use?
Most are built on AVR/Arduino (1).
How big is a typical board using the 74LS157?
The median is 180 × 100 mm, and 33% are two-layer designs.
What is the most popular open source board using the 74LS157?
By GitHub stars, Z80DMA2 by lynchaj, with 31 stars.
Can I simulate one of these boards using the 74LS157 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.