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HC05N

Discussion in 'Microcontrollers, Programming and IoT' started by Paul o Callaghan, Jan 19, 2021.

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  1. Paul o Callaghan

    Paul o Callaghan

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    May 27, 2017
    I have an EMU from new holland tractor with HC05N inside , i need to replace these but i cant find there telling me there obsolete , can any telll me what would be a suitable replacement??
     
  2. davenn

    davenn Moderator

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    Sep 5, 2009

    Photo please as I have no idea what that part is ?
    IC ? transistor ? ..........
     
  3. Hunter64

    Hunter64

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    Nov 20, 2018
    It's a Motorola MC68HC05 microcontroller, probably with internal ROM. Without the correct firmware it will do nothing at all.

    Why do you want to replace it?
     
  4. Bluejets

    Bluejets

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    Oct 5, 2014
    Could be any number of things, that's why davenn asked for more info.
     
    davenn likes this.
  5. Hunter64

    Hunter64

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    Nov 20, 2018
    It can indeed be a number of things, that's why I asked my question.

    What is the complete number, MC68HC05???, there are many different versions.
     
  6. davenn

    davenn Moderator

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    Sep 5, 2009

    and it mite not even be a microcontroller
     
  7. bertus

    bertus Moderator

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    Nov 8, 2019
    Hello,

    How many pins has the chip?
    It could be an 74HC05 hex inverter when it has 14 pins.

    Bertus
     

    Attached Files:

  8. davenn

    davenn Moderator

    13,765
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    Sep 5, 2009

    This is why photos were asked for a way back ;)

    @Paul o Callaghan Where have you got to ?? People are trying to help you
     
  9. Harald Kapp

    Harald Kapp Moderator Moderator

    10,999
    2,502
    Nov 17, 2011
    Why do you think you have to replace this chip? How do you know it is defect?
     
    bertus likes this.
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