Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 4 of 4

Thread: Teensy 3.2 - Add 32.468 khz crystal for Real Time Clock

  1. #1
    Junior Member
    Join Date
    Jul 2018
    Posts
    9

    Teensy 3.2 - Add 32.468 khz crystal for Real Time Clock

    I use Teensy 3.2 and I would like to add a 32.468 khz crystal for Real Time Clock.
    Is these spare part available in PRJ store ?
    If not, where it is possible to find it ?
    Regards
    AIREL46

  2. #2
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    Posts
    19,734
    From the Time library page

    https://www.pjrc.com/teensy/td_libs_Time.html

    The crystal shown is Citizen part CFS-206, Digikey part 300-8303-ND, 300-8762-ND, 300-8763-ND, or 300-1002-ND. Teensy 3.5 & 3.6 have this 32.768 kHz crystal built in.
    Checked just now. Looks like Digikey currently has all 4 of these in stock.

    This one is the cheapest:

    https://www.digikey.com/products/en?...ds=300-8303-ND

    This one has the best performance:

    https://www.digikey.com/products/en?...ds=300-8763-ND

  3. #3
    Junior Member
    Join Date
    Jul 2018
    Posts
    9
    Thanks for your answer.
    I have found to farnel CFS206-32.768-KDZF-UB
    The datasheet is:
    http://www.farnell.com/datasheets/90...718.1548082902
    Please can you confirm me if it is a good choise ?
    I do not understand the frequency difference: 32.468 khz -> 32.768 kHz
    Regards.
    AIREL46

  4. #4
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    Posts
    19,734
    Looks good.

    They are all 32.768 kHz. There is no 32.468 kHz.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •