11 open source boards using the 74HCT244
Real designs built with the 74HCT244, 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.
LittleSixteen
SukkoPera
389 × 136.2 mm329 parts2LCustom license76
Amiga-N2630
jasonsbeer
318.4 × 124.5 mm231 parts4LNo license69
Multicomp6809
nealcrook
170 × 145 mm115 parts2LNo license63
Amiga 2000R6
iansbremner
416.8 × 346.1 mm553 parts2LNo license19
AVR/ArduinoEmurom
jtsiomb
90.6 × 77.8 mm48 parts2LCC-BY-SA-4.015
STM32MidiMonger components
dchwebb
40 × 100 mm64 parts2LNo license12
OpenEarlyMacsRAMexpansion
Builder68
137 × 92 mm60 parts2LCERN-OHL-S-2.010
Schwim repacked
hkzlab
17.9 × 35.8 mm7 parts2LNo license6
GPIO
89Mods
209.6 × 108.5 mm113 parts4LMIT2
BusMonitor
105.2 × 70.6 mm53 parts2LMIT2
RP2040/RP2350Piggyback 3v3
ForgottenMachines
368.3 × 90.8 mm22 parts2LNo license5
The 74HCT244 in open source designs
The gallery holds 11 open source boards using the 74HCT244 from 10 GitHub repositories; a typical one measures about 170 × 100 mm and carries around 64 components.
82% are two-layer designs, the rest use four layers or more, and 36% carry an open source license.
The most starred is LittleSixteen by SukkoPera.
Parts used alongside the 74HCT244
Microcontrollers on boards using the 74HCT244
What boards using the 74HCT244 are built for
74HCT244: common questions
Where can I find a 74HCT244 reference design?
Each of the 11 boards on this page is a real design using the 74HCT244. 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 74HCT244?
The 74HCT245, 74HCT74, 74LS06, 74LS38 and 74LVC245 appear in the most repositories here.
Which microcontrollers do boards using the 74HCT244 use?
Most are built on AVR/Arduino (1), RP2040/RP2350 (1) and STM32 (1).
How big is a typical board using the 74HCT244?
The median is 170 × 100 mm, and 82% are two-layer designs.
What is the most popular open source board using the 74HCT244?
By GitHub stars, LittleSixteen by SukkoPera, with 76 stars.
Can I simulate one of these boards using the 74HCT244 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.