Any chip lookup tools based on pin outs?

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  • Retro-Hipster
    Tinkerer
    • Apr 2019
    • 125
    • United States
    #1

    Any chip lookup tools based on pin outs?

    Hey guys.. I was just curious. Do you know of any lookup tools for IC's that can look up chips based on pinouts? I don't assume that that would be a feasible concept for things like high pin count microcontrollers and above, but it seems like the kind of thing that could exist for smps chips or the like. So I was curious.

    To elaborate, say you were looking up an 8 pin SMPS chip for a device, but couldn't find anything based on the IC number. It would be really cool to be able to say, "Ok, this pin is driving the MOSFETs, this pin is ground, this pin is vcc, this pin looks like current sense, and I'm not sure what these pins are" and then get some possible chip lookups from that. This concept popped in my head the other day when I was working on a PSU for a friend and couldn't find the actual chip's datasheet. I eventually found what it was a clone of after some searching (it ended up having parts number similarities with the original), but it ended up taking quite a while to track down..


    “Men always seem to think about their
    past before they die, as though they were
    frantically searching for proof that they
    truly lived.”
    – Jet (Cowboy Bebop) -
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    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31015
      • Albion
      #2
      Re: Any chip lookup tools based on pin outs?

      no,
      you need to use datasheets combined with a shitload of experience to identify the power pins etc.

        Comment

        • Retro-Hipster
          Tinkerer
          • Apr 2019
          • 125
          • United States
          #3
          Re: Any chip lookup tools based on pin outs?

          Yeah, that's basically what I have been doing. lol I'm just a programmer type so my brain likes to think of things along those lines. Haha Normally I just do what you said but the thought of such a tool existing makes me wish it exists. ^,^; I'm to the point where I can figure out the layout of power supplies and such pretty well, but there have a been a few in the past that I couldn't fix due to fried IC's. Thought maybe I was missing some tool.

          Anyways, thanks for responding STJ.


          “Men always seem to think about their
          past before they die, as though they were
          frantically searching for proof that they
          truly lived.”
          – Jet (Cowboy Bebop) -

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9535
              • Canada
              #4
              Re: Any chip lookup tools based on pin outs?

              Many times the ic will have the same pinout but the ic would not be interchangeable, for example top221 and top227 same pinout but you could not use a top221 to replace a top227

                Comment

                • Retro-Hipster
                  Tinkerer
                  • Apr 2019
                  • 125
                  • United States
                  #5
                  Re: Any chip lookup tools based on pin outs?

                  Ah, yeah. Honestly, I'm not sure what I was thinking now that you mention it. ^^; I mean, how would I know the switching frequency and such? Well, thanks for your time RJ and STJ.


                  “Men always seem to think about their
                  past before they die, as though they were
                  frantically searching for proof that they
                  truly lived.”
                  – Jet (Cowboy Bebop) -

                    Comment

                    • Farasa
                      Member
                      • Jul 2016
                      • 47
                      • South-Africa
                      #6
                      Re: Any chip lookup tools based on pin outs?

                      Evening Guys
                      I'm looking for picouts on I7238 ic...its a 20 pin small QFN....

                        Comment

                        • gabiz_ro
                          Senior Member
                          • Mar 2011
                          • 167
                          • Romania
                          #7
                          Re: Any chip lookup tools based on pin outs?

                          sorry seems is censored by forum

                            Comment

                            • Retro-Hipster
                              Tinkerer
                              • Apr 2019
                              • 125
                              • United States
                              #8
                              Re: Any chip lookup tools based on pin outs?

                              Oh, This thread was really just about my question about a chip lookout tool. You guys would probably be better off making a new thread for your queries. I think more people would see them than they would on this thread. haha


                              “Men always seem to think about their
                              past before they die, as though they were
                              frantically searching for proof that they
                              truly lived.”
                              – Jet (Cowboy Bebop) -

                                Comment

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