Jim Thompson wrote:

An XOR is a convenient structure to allow a control signal to invert
or non-invert another signal.

Trouble is (as classically done) inverting has 3 stage delays, while
non-inverting has only 2.

Anyone know of a configuration that has symmetric delays?

Thanks!

(I'm rolling my own at the device level so anything goes :-)

...Jim Thompson

Do the delays have to be symmetrical? In other words, if we give you an A
XOR B where A is the signal and has 3 stage delays regardless of B state,
will B ever be used as the signal (requiring 3 stage delays for either A
state?

--
Paul Hovnanian
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A mathematician is a machine for converting coffee into theorems.