Recent content by ilia

  1. I

    Damaged Crystal

    And BTW, I thought about it, and the residue it leaves behind need not actually be conductive, it could simply collect moisture from the air and become conductive...
  2. I

    Damaged Crystal

    Please do, it is still useful, especially since my solution seems absurd and it may break again (I think)
  3. I

    Damaged Crystal

    OK problem solved. While soldering the extra pins to the board I used a water soluble flux. As it turns out, upon drying it leaves a conducting residue. I tested two random points on the board with an ohmmeter and to my surprise it was around 100kOhm. So I washed my board in a bath of distilled...
  4. I

    Damaged Crystal

    Hi. I have a Nuvoton NUC123 microcontroller, it runs an ARM cortex M0, and it came on a developement board (NUC123 SDK) which contains a 12 MHz crystal. It recently started freezing every other time upon reset, and in the debugger I saw that it is stuck in a while loop, waiting for the external...
  5. I

    LGA to DIP adapter

    I can also find these lots of adapters, but soldering a 7 mm X 7 mm LGA onto one of them is just as hard as not having an adapter at all... so what's the point.
  6. I

    LGA to DIP adapter

    Hi. I am working on a project which requires a specific integrated circuit which only comes in an LGA 24 package. I tried searching the web for a through-hole adapter. I found schmart boards but they're only good for SMT with pins. I've seen that PC CPU's are LGA and they are connected via a...
  7. I

    4093 and 4070

    Actually I have two more questions: 1. Does the capacitor have to be ceramic? I assume it's because it needs to be non polar? 2. If I have 3 IC on my circuits each connected to the same rails for VSS and VDD. If I connect a 0.1uF capacitor between the VSS and VDD of each chip. Isn't it the same...
  8. I

    4093 and 4070

    excellent. that was going to be my next question. :)
  9. I

    4093 and 4070

    Wow thanks alot. I did not know these things. thank you!
  10. I

    4093 and 4070

    hi, I'm using these two components on my circuit, they both have 4 gates on one 14 pin chip, but I don't need the whole functionality. Can I just leave the unneeded pins not connected? or must I connect them to Vcc/ground ? The datasheet says nothing about this issue... Thank you!
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