What is the structure of a pad cells?

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alam.tauqueer

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pad cell structure

Hi,

What is the strcuture of a pad cells??

can any one tell me where I can get it??

regards,
tauqueer
 

pad cell structure

There are variety of a lot IO pads,- from simple to very complex, say USB2.0 with PVT self correction. The common for all is existence of ESD protection. Other parts could be different.
 

Re: pad cell structure

Considering the general purpose Driver, it would have a input block, level shifter, predriver and then the output stage (which drives the pad pin).

A input receiver would have input stage, hystersis block, level shifter and an ouput block..

Apart from these, there would be some ESD structures for protection.
 

Re: pad cell structure

yeah,input ,output ,inout
lots of device there have ESD guard
 

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