Buffer with input output shorted
Is there any special purpose of sorting input output of a buffer?


Since the input and output of your buffer are the same net, let's just call this net "B".

Now give the buffer a low output strength (high output impedance).

Connect net B to one or several tristatable higher drive strength outputs.

One of these drivers can output a "1" or a "0", then go tri-state, and your feedback buffer will "remember" the value that was previously output. If several drivers output different values at different times, the buffer will remember the last one.

Not something you'd use every day, but why not?