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  • TI Thinks Resolved

SN74LVC1G11:

Prodigy 30 points

Replies: 2

Views: 126

Part Number: SN74LVC1G11

Hi, I am using the SN74LVC1G 3 input AND gate and seeing something that concerns me. The three inputs monitor Vcc (3.3), Reset chip and FPGA read signal. Output goes to processor Reset. When I touch any one of the inputs with a scope probe (1 MEG), I immediately get a processor reset (AND output glitches low). I noticed the AND supply (3.3) is not decoupled (no cap at supply pin). Should I expect this? Thank you, Jim

 
  • Hi Jim - and welcome to the forums!
    Can you provide the schematic for the input circuits connected to the AND gate? Scope shots are also helpful, but I understand that it might be difficult to capture the event you're describing.


    Looking for a low voltage translator? Check out the AXC family that supports 0.7V to 3.3V translation!

    The Logic Minute training page has videos on many interesting topics that all are kept shorter than 5 minutes.

  • In reply to Emrys Maier:

    Hi Jim,
    I haven't heard back from you in a while. I'm going to go ahead and close out this thread for now. if you can provide the information I requested, please respond here -- or if the thread is already locked, just use the "+ Ask a related question" button in the top right of the forum site.


    Looking for a low voltage translator? Check out the AXC family that supports 0.7V to 3.3V translation!

    The Logic Minute training page has videos on many interesting topics that all are kept shorter than 5 minutes.

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