Help with ICs.....

[Seaofdep]

Hey there , I have searched in the database topic and found nothing or different uses in database . Besides the LM I don't know anything of the others  . Being that it came like this in a little antistatic zipbag I assume it is a set for a project or something . Can someone confirm or does anyone recognize them . If so can you point me to a link of some sort? Is there something I can throw together with them on the breadboard and using arduino ? Thank you in advance ( sorry forgot to add picture lol)


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[Seaofdep]

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[Ian.M]

All the 14 pin ones are 74LS series TTL logic.  That's a newer, faster, but otherwise generally compatible version of the 74xx series

You've got two 741 OPAMPs, which were second sourced by a *LOT* of manufacturers, and one 555 timer, a clone iof the classic NE555.

I cant imagine any useful circuit that would use all those parts and no other ICs, and there is a wide range of brands and date codes so IMHO they are just a random assortment that someone tidied into the same bag.

The logic chips *MAY* be useful in an Arduino project,  but the 741 and 555 are unlikely to be - The 741 OPAMP is a rather old design and doesn't work well if at all powered by a low voltage single supply, and the Arduino can already do almost any timing function you could use a 555 for.   OTOH, with an appropriate supply voltage both are still useful in standalone circuits.     

[Seaofdep]

Thank you so much for such a detailed reply . Now I know why I kept looking at the timer and repeating 555, I came across it while researching ransoms.... hmm I'll have to look up them up and look for something easy for a Beginner to use them for. Thank you  again , I appreciate the help