A logic circuit whose outputs at a
specified time are a function only of the inputs at that time. In
practice, any physically realizable combinational circuit will have
a finite transit time, or delay, between the inputs changing and the
outputs changing; the intention of the term combinational is to
include algebraic elements (AND gates,
OR gates, etc.) and preclude memory
elements (flip-flops, etc.). Analysis
and synthesis of combinational circuits is facilitated by
Boolean algebra and
Karnaugh maps. Compare sequential
circuit.
