Integrated Circuit (IC) identification & Datasheet

[a_rishi]

Hi Everybody

I have 2 Nos. IC's that I can't find their data nowhere. I would be grateful if someone could help.

(i) IC No. 1 - Top Marking: 324 AND Bottom marking eZ5A827. It is an IC from STMicrolectronics as per the logo

(ii) IC No. 1 - Top Marking: 358 AND Bottom marking eZ835. It is an IC from STMicrolectronics as per the logo

Thanking you in advance.

 

[Nigel Goodwin]

You're assuming that IC's have meaningful numbers - often this isn't the case - it's common practice for equipment manufacturers to order parts with 'in-house' numbers which are totally meaningless (other than to themselves), and datasheets aren't available because those don't exist.

If you need replacements, the only source is the equipment manufacturer.

 

[rjenkinsgb]

324 and 358 are both generic types of opamp, from many manufacturers

It could be those - or as Nigel says, they could be in-house numbers and totally different...

See if the power pins & anything else traceable match up with the data sheets?

https://www.onsemi.com/pub/Collateral/LM324-D.PDF

ON Semiconductor

 

[a_rishi]

Thanks everyone for your kind consideration and help

Yes, infact it is LM324 & LM358.

 

[narkeleptk]

If you need replacements, the only source is the equipment manufacturer.

If you can not unmask your ic in question then you can still usually find a lot of masked clone versions on ali. Hit or miss if they get it right or not but usually they do.