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What is 127A0079?

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nicklas
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2006/08/15 22:30:43 (permalink)
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What is 127A0079?

Hello,
I hava a component that has this number on it, 127A0079, and I'm now wondering what kind of component thisis, and were I can find the datasheet for it.
It has it the Microchip logga on it.
 
Thanks for help. Smile
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    ric
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    RE: What is 127A0079? 2006/08/16 01:53:11 (permalink)
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    It may be a custom ROM based product.
    Describe a little more about the board that it is on.
    A photo, or package details would be helpful also.
     

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    #2
    nicklas
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    RE: What is 127A0079? 2006/08/16 02:13:09 (permalink)
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    It's for a garagedoor opener (radio communication), so this part is the receiver, (controling the opening of the door).
    The text on the chip is 127A0079C, on the second line, c(copyrigt)CGI and on the third line, the "M" stamp followed by 06102A8.
    And it's in a 28 pin DIL package.
     
    There is also a small surface monted 24LC018 (8 pin) on the board.
    #3
    Ron Hayes
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    RE: What is 127A0079? 2006/08/16 08:02:41 (permalink)
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    I'm gonna take a wild guess here they it is a KEELOC device.

    Ron
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    jetcode
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    RE: What is 127A0079? 2006/08/16 09:10:59 (permalink)
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    ORIGINAL: nicklas

    Hello,
    I hava a component that has this number on it, 127A0079, and I'm now wondering what kind of component thisis, and were I can find the datasheet for it.
    It has it the Microchip logga on it.

    Thanks for help. Smile

     
    sounds like it's working ... the anti-reverse engineering numbering scheme ... but the real hacks (china) will simply reproduce every signal on every pin so part numbers become truly meaningless ...
     
     
    #5
    nicklas
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    RE: What is 127A0079? 2006/08/16 11:59:12 (permalink)
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    What do you mean, "sounds like it's working"?
    Do mean that you think that this is not a real Microchip IC, or what?
     
    /Confused
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    jetcode
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    RE: What is 127A0079? 2006/08/16 12:34:54 (permalink)
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    ORIGINAL: nicklas

    What do you mean, "sounds like it's working"?
    Do mean that you think that this is not a real Microchip IC, or what?

    /Confused


    Often manufacturers will have some obscure part number that can be referenced in-house but is virtually meaningless to the general public and to hacks who wish to reverse engineer and clone the device. My guess is that this manufacturer contracted Microchip to print their in-house part number on these parts and what isn't clear is whether this is a custom IC. Microchip like all other silicon houses will design a custom IC if the volume is there (I am assuming).

    the point I am trying to make is that YOU can't easily discover what kind of chip this is ... so the anti-theft mechanism is working ...
    post edited by jetcode - 2006/08/16 12:37:42
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    bkil
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    RE: What is 127A0079? 2006/08/16 13:17:11 (permalink)
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    Nicklas, it would be nice to see a close-up (with the help of a small magnifier lense perhaps) of the chip, as Microchip and Motorola have a similar logo. You could have also mistakened that letter with the mask work symbol (M), that is the dual of (C) for chips. (Oh and by the way, the other chip is called 24LC01B, not 24LC018 wink)
    This all, of course doesn't exclude the possibility of a high volume custom package marking service or even a full-custom chip.

    Edit: almost forgot the smiley..., sorry for that Smile

    Cheers!
    bkil
    post edited by bkil - 2006/08/17 20:00:19

    "We make a living by what we get, we make a life by what we give." -- Sir Winston Churchill
    #8
    nicklas
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    RE: What is 127A0079? 2006/08/16 22:35:51 (permalink)
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    Okey, I can't take a magnified picture of the chip, but it's a pretty "big" text, (not like the 24LC01B on the solder side), so I'm pretty sure that those are the right numbers (and loggo). 
     
    Then I assume that it's a customised chip, I don't have the time to put down to much effort in this. I only wanted to messure (somewere on the board) how good reception I had from the transmitter, and compere it with other brands. I thought that maybe it could be a RF-chip from you guys.
     
    Thanks for all the help!
    #9
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