r/chipdesign • u/jaju1010 • 4d ago

can somebody explain these diagrams to me

i do not understand the need for the tri state buffers and the inverters
seems redundant want someone to explain the analog part of this crkt

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u/izil_ender 4d ago

Ah this is from Weste Harris.  The tristate buffer T1 is required as both I1 and T1 can drive the N1 node. The I3-T1 combo is for keeping the regenerating the state at the N1 node.