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How to change digital components work level in Pspice?

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xz781122

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how to change level?

i am studying analog-digital ciruits now.i want to do some simulations in pspice.But i don't know how to change the digital componets' work level.The default work level is 5V.How can i change it to 3V. i try a part called “digital interface pwr",but it didn't work.who can do me a favour?
 

Re: how to change level?

You could use a 5V device inverter connect to 3.3V power and transmit 5V signal to 3.3V signal, takecare of dutycycle problem.
 

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