37 open source boards using the 74HCT32
Real designs built with the 74HCT32, 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.
AVR/Arduino8bit computer
vascofazza
297.2 × 180.3 mm327 parts2LMIT314
Amiga 2000 EATX
jasonsbeer
304.8 × 330.2 mm599 parts4LGPL-3.0198
RC6502 General Video Adapter
tebl
99.1 × 99.7 mm80 parts2LGPL-3.0192
TMS9918A
jblang
99.1 × 49.9 mm36 parts2LNo license145
AVR/ArduinoApple2Card
profdc9
160 × 78.2 mm77 parts2LNo license95
TEC-1G
MarkJelic
63.5 × 85.6 mm31 parts2LGPL-3.046
C64 250407 SRAM Adapter
hkzlab
53.3 × 59.7 mm21 parts2LCC-BY-NC-4.029
Msxdos2s
b3rendsh
99.8 × 64.1 mm35 parts2LCC-BY-NC-4.024
ISA EMS 2Mb
104.1 × 102.9 mm41 parts2LCC-BY-NC-4.023
Flock
skiselev
99.1 × 49.9 mm25 parts2LNo license19
Power-Clock
DutchMaker
121.9 × 121.9 mm45 parts2LNo license14
Minimax8085-apu ext
100 × 80 mm38 parts2LNo license13
SodaIDE v2 konami case
Danjovic
100 × 65.5 mm30 parts2LCC0-1.011
OpenEarlyMacsRAMexpansion
Builder68
137 × 92 mm60 parts2LCERN-OHL-S-2.010
ISA QuadUART2
104.1 × 102.9 mm39 parts2LCC-BY-SA-4.09
Rc cfcard
PickledDog
99.1 × 49.9 mm13 parts2LApache-2.07
Tinyfs
sittner
69.9 × 96.1 mm37 parts2LGPL-3.03
Rc-640k
99.1 × 49.9 mm11 parts2LApache-2.03
SVI-2017
patricklaf
100 × 100 mm40 parts2LNo license2
Rc-1024k
99.1 × 49.9 mm13 parts2LApache-2.02
TTL 6510 Computer
StefansAI
368.3 × 215.9 mm330 parts2LNo license1
AVR/ArduinoProgramming interface
53.3 × 48.3 mm12 parts2LMIT314
TMS9918A YM2149
daveho
150 × 90 mm44 parts2LNo license19
Registers-StackPointer
121.9 × 121.9 mm19 parts2LNo license14
SodaIDE v2 patola case
100 × 64.7 mm30 parts2LCC0-1.011
Rc cfcardh
99.1 × 49.9 mm13 parts2LApache-2.07
TTL 6510 Computer
368.3 × 215.9 mm330 parts2LNo license1
AVR/ArduinoArduino eeprom programmer
68.7 × 53.5 mm8 parts2LMIT314
Z80ctrl iox
99.8 × 49.9 mm29 parts2LMIT73
InterruptAndKeyboard
150 × 90 mm37 partsNo license19
Soda IDE
100 × 65.5 mm29 parts2LCC0-1.011
Registers
89Mods
209.6 × 108.5 mm98 parts4LMIT2
AVR/ArduinoDisplay interface
96.5 × 55.3 mm7 parts2LMIT314
ALU
209.6 × 108 mm82 parts4LMIT2
Control
209.6 × 108.5 mm81 parts4LMIT2
Memory
209.6 × 108.5 mm58 parts4LMIT2
The 74HCT32 in open source designs
The gallery holds 37 open source boards using the 74HCT32 from 25 GitHub repositories; a typical one measures about 100 × 85.6 mm and carries around 37 components.
86% are two-layer designs, the rest use four layers or more, and 59% carry an open source license.
The most starred is 8bit computer by vascofazza.
Parts used alongside the 74HCT32
Microcontrollers on boards using the 74HCT32
What boards using the 74HCT32 are built for
74HCT32: common questions
Where can I find a 74HCT32 reference design?
Each of the 37 boards on this page is a real design using the 74HCT32. 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 74HCT32?
The 74HCT04, 74HCT138, 74HCT00, 74HCT08 and 74HCT574 appear in the most repositories here.
Which microcontrollers do boards using the 74HCT32 use?
Most are built on AVR/Arduino (5).
How big is a typical board using the 74HCT32?
The median is 100 × 85.6 mm, and 86% are two-layer designs.
What is the most popular open source board using the 74HCT32?
By GitHub stars, 8bit computer by vascofazza, with 314 stars.
Can I simulate one of these boards using the 74HCT32 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.