24 open source boards using the 74HC161
Real designs built with the 74HC161, 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.
Minimal-64x4-Home-Computer
slu4coder
245.1 × 160 mm134 parts2LNo license323
8-Bit CPU 32k
196.9 × 125.1 mm101 parts2LNo license184
65uino
AndersBNielsen
74.4 × 53.6 mm80 parts2LCustom license165
Minimal-64-Home-Computer
306.1 × 130.2 mm127 parts2LNo license93
RadioThermal Soldering OSHW
RadioThermal
100 × 75 mm54 parts2LCERN-OHL-P-2.078
AVR/ArduinoMinimal-UART-Computer-3
208.9 × 170.8 mm202 parts2LNo license43
AVR/ArduinoNes cnrom
emeargt
99.7 × 63.9 mm10 parts2LCC-BY-SA-4.032
8 16 computer 2
halfburnttoast
208 × 110 mm111 parts2LNo license21
Counter
Velko
62.2 × 21.6 mm65 parts4LMIT16
Latest-Full-Backplane
Trilobyte-CPU
100 × 100 mm146 parts4LNo license2
Compe 6502 Mainboard
rjhelms
167.6 × 134.6 mm93 parts2LNo license2
Retro clock tmct
tmct-web
245 × 240 mm255 parts2LNo license1- schematic only · 112 parts
MSAP-1
mehrantsi
112 partsMIT1 
8-Bit CPU
otterbox901
160 × 140 mm65 parts2LNo license0
Control
104.7 × 122.1 mm64 parts2LMIT16
74 Character Generator
124.5 × 99.1 mm77 parts4LNo license2
Instruction decoder
ifilot
101.6 × 55.9 mm68 parts2LCERN-OHL-S-2.02
Z80-MIO
dennis9819
160 × 100.3 mm75 parts2LNo license2
Sd
Noah1989
160 × 100 mm45 parts2LMIT2
Busmaster
160 × 100 mm33 parts2LMIT2
Output register
101.6 × 55.9 mm30 parts2LCERN-OHL-S-2.02
Spi
scefrom
135.9 × 53.3 mm45 parts2LCustom license2
Program counter
101.6 × 27.9 mm26 parts2LCERN-OHL-S-2.02
Display back
62.2 × 21.6 mm34 parts4LMIT16
The 74HC161 in open source designs
The gallery holds 24 open source boards using the 74HC161 from 18 GitHub repositories; a typical one measures about 135.9 × 100 mm and carries around 72 components.
83% are two-layer designs, the rest use four layers or more, and 46% carry an open source license.
The most starred is Minimal-64x4-Home-Computer by slu4coder.
Parts used alongside the 74HC161
Microcontrollers on boards using the 74HC161
What boards using the 74HC161 are built for
74HC161: common questions
Where can I find a 74HC161 reference design?
Each of the 24 boards on this page is a real design using the 74HC161. 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 74HC161?
The 74HC00, 74HC245, 74HC86, 74HC08 and 74HC283 appear in the most repositories here.
Which microcontrollers do boards using the 74HC161 use?
Most are built on AVR/Arduino (2).
How big is a typical board using the 74HC161?
The median is 135.9 × 100 mm, and 83% are two-layer designs.
What is the most popular open source board using the 74HC161?
By GitHub stars, Minimal-64x4-Home-Computer by slu4coder, with 323 stars.
Can I simulate one of these boards using the 74HC161 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.