PIC18F252 - Crystal Question

Discussion in 'Embedded Systems and Microcontrollers' started by mermaid09, Jan 2, 2010.

  1. mermaid09

    Thread Starter New Member

    Nov 21, 2009
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    thanks for your explanation,it really helpful for to understand how to read the table. But My problem here,im using PIC18F252 and example for that table is using 40MHz and unfortunately form datasheet it no mention the value of capacitor that suitable for 40MHz crystal oscillator and i choose for my circuit using 20Mhz oscillator. How to increase the value?or how to make the value of 20Mhz as same function like 40Mhz.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
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  3. rjenkins

    AAC Fanatic!

    Nov 6, 2005
    1,015
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    The capacitor values are not at all critical.

    Something in the 10pF to 20pF should work fine.
     
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