MPC5744 crystal oscillator module

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MPC5744 crystal oscillator module

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liljie
Contributor I

The table below is electrical characteristics of MPC5744. We use the external crystal.

  1. The oscillation amplitude of Vxoschs is from 1.1V to 2.6V, and this voltage is XTAL voltage or EXTAL voltage?
  2. If MPC5744 works in FSP mode, what is the oscillation amplitude of Vxoschs?
  3. As we know, the oscillation input pin of the MPC5643 is XTAL. But the oscillation input pin of the MPC5744 is EXTAL???
  4. 159994_159994.png1234567.png
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2 Replies

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petervlna
NXP TechSupport
NXP TechSupport
  1. It is valid for both,  
  2. 2. Designer need to check  
  3. 3.EXTAL is input on Panther

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liljie
Contributor I

hi Peter Vlna,

1. I test the XTAL and EXTAL pins, the voltage of XTAL is from -0.4V to 3.2V, this voltage range is beyond the datasheet defined parameters.

2. In LCP mode, Vxoschs is from 1.1V to 2.6V; If in FSP mode, the range of Vxoschs?

3. The image below is electrical characteristics of the MPC5643, can you sent parameters of the MPC5744 (similar to the image below) to me?

jingz.png

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