• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 79 subscribers
  • Views 476 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.

MSP430G2553 LFXT1 Crystal Range

Mark Ackerson
Genius 10190 points

Other Parts Discussed in Thread: MSP430G2553

What is the MSP430G2553 minimum and maximum crystal frequency range on LFXT1?  Can a 40 kHz crystal be used?  LFXT1 clock input range is 10kHz to 50 KHz but nothing is specified for crystals.  Please advise.

Thanks,

Mark

  • 0
    Guru 46710 points

    Mark Ackerson said:
    LFXT1 clock input range is 10kHz to 50 KHz but nothing is specified for crystals.

    As LFXT is crystal oscillator then obviously it's specification is about crystals either.

  • 0
    Guru 227245 points

    The specs (current consumption etc.) are given for a typical 32768Hz crystal. But otehr frequencies are good as well. The lower limit is the fault detection circuit, which may complain below 10kHz. The upper limit is the LF oscillator circuit (opposed to the high-power HF oscillator circuit). 40kHz or even 50 shouldn't be a problem. 100kHz might be.
    For anything outside the specs, the golden rule applies: try it. If it works, it works, if not then not. But if it works with this device, don't assume that it will work with the next device too.

**Attention** This is a public forum