• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 20 subscribers
  • Views 251 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN74LVC1G123: Reference levels tolerance of Cext/Rext?

HAREL LEVY
Prodigy 240 points
Part Number: SN74LVC1G123

Hi Everyone,

I need to know the reference levels tolerance of the Cext/Rext pin which trigger the output to high or low.

I want to make a precise pulses (500ns +- 20ns of tolerance) and I need to know how precise those reference levels are.

this picture is not from the datasheet but it is to illustrate which reference levels i am talking about (Vref L, Vref H)

Thank you

  • 0
    Guru 317000 points

    There are no guarantees. (And it is assumed that the capacitor tolerances are so large that trying to achieve precision would be pointless.)

    If you want precision, use a counter (nowadays, a microcontroller) based on an oscillator with known tolerances.