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i.MX25: OSC32K_EXTAL VIH/VIL?

Question asked by Nori Shinozaki on Jul 14, 2015
Latest reply on Jul 26, 2015 by igorpadykov

Hello Champs,

 

My customer is using an external clock circuit for 32.768KHz.

There is a spec for that in the data sheet.

 

 

They are using a circuit meets the spec(VOH/VOL) above, however the voltage at OSC32K_EXTAL is 2.3V which is lower than 0.7*VDD=2.31V.

This drop is considered because the circuit is providing clock not only to i.MX257 but also to a FPGA.

 

Is 2.3V for OSC32K_EXTAL OK?

What are VIH and VIL specs for OSC32K_EXTAL?

 

Best regards,

Nori Shinozaki

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