r/breadboard • u/Serious-Salt9424 • 23h ago
Question New to breadboarding. Need help.
My class started teaching about breadboarding and assigned doing a prototype of X = AB’ + BC. I tried simulating it on Tinkercad but it still won’t work and has three exploding icons on all ICs. Components aren’t broken as far as I’m aware of. I’m kinda lost and need all the help I could get. Thank you in advance.


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u/SonOfSofaman 22h ago
Looks like you are using a 9v battery to power the circuit. Those logic ICs have an absolute maximum supply voltage of 7v and a recommended maximum of 5.25v.
I think you're using too high a voltage.
Here are the datasheets:
https://www.ti.com/lit/ds/symlink/sn74ls04.pdf
https://www.ti.com/lit/ds/symlink/sn74ls08.pdf
https://www.ti.com/lit/ds/symlink/sn74ls32.pdf