VDD Rise time

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VDD Rise time

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RaghuSorab
Contributor I
Friends,
 
I am using MC908QT1 device.
 
I need to know what happens when the Vdd rise time exceeds the specified 150 msecs.
 
Does this affect the start up?
 
 
Raghu Sorab
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glork
Contributor I
Good morning.
I'm guessing that the reset and brown-out control circuits wont be guaranteed to work correctly (i.e. the processor may not start up correctly, etc.).

I strongly recommend that you keep Vcc voltage and timing within spec.
ron
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peg
Senior Contributor IV

Hi Raghu,

There was some discussion in this forum maybe a couple of months ago about this and short term power outages etc. I've no time to search now.

Regards David

 

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