the 5V/3.3V supply compatible CMOS circuit design

[chang830]

Hi,
I am developing a CMOS level output receiver with 0.5um CMOS process.

I have no experience for the dual supply design, what I should be careful in the design?Pls. share with me your experience.

Thanks

 

[mpig09]

Dear chang830 :

1.level shift circuit for 5V/3.3V interface.
2.Power Ring



mpig

 

[chang830]

Dear chang830 :

1.level shift circuit for 5V/3.3V interface.
2.Power Ring



mpig

dear mpig09,
thanks for the useful reply.

i understand the 1st item, i.e.,level shift circuit for 5V/3.3V interface

but would you elaberate a bit more the item 2,i.e., Power Ring?

thanks

 

[mpig09]

Dear chang830 :

I means the layout plant for power ring.


mpig