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Recent content by Eh_Ba

  1. E

    Microcontroller and IC(HCT,4000...) connection.Over current, ESD, EMI prevention

    A useful pdf about CMOS TTL interfacing. **broken link removed**
  2. E

    Remote circuits (long wire) EMI, ESD protection

    I was not familiar with the TVS. Here are some helpful links: vishay.com/docs/88436/appnote.pdf semtech.com/images/promo/What_are_TVS_Diodes.pdf https://www.semtech.com/images/datasheet/tvs_diode_selection.pdf mccsemi.com/up_pdf/MCC_TVSSelectionGuide.pdf Thanks again GUMY
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    Microcontroller and IC(HCT,4000...) connection.Over current, ESD, EMI prevention

    Thank you Barry
  4. E

    Remote circuits (long wire) EMI, ESD protection

    Thank you GUMY. Do I have to use ferrite on both sides too? Is there any definition for long wire? And what about the shielded wires?
  5. E

    Remote circuits (long wire) EMI, ESD protection

    Hi I have found this page about protecting micro's inputs from EMI, ESD. https://www.digikey.com/us/en/techzone/microcontroller/resources/articles/protecting-inputs-in-digital-electronics.html These images are two ways to protect the sensitive component on the right (micro). But what if we...
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    Microcontroller and IC(HCT,4000...) connection.Over current, ESD, EMI prevention

    Hi Is it necessary or preferred to place a resistor between Microcontroller (esp. PIC family) and IC(7400, 4000, darlington etc.) or not. If yes, how much ohm is good? The HC(T) IC family has a 100 ohm resistor right between it's input pin and it's internal circuit and Darlington array IC's...
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