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problem regarding my assignment

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MADI31

MADI31

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i want to know that why PMOS device is used as PUN
and NMOS as PDN ?

i have read a lot about this but none of the book is clearing my doubt??????????????
 
Never heard of PUN or PDN. What does it stand for?
 
crutschow said:
Never heard of PUN or PDN. What does it stand for?
Click to expand...

Pull-UP Network (PUN) and a Pull-Down Network (PDN)

The PUN (consisting of a single p-type transistor) connected to source, the PDN (consisting of a single n-type transistor) connected to ground.
 
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