A combinational logic network, or
CLN, is a type of
digital system that is purely
combinational, that is, the values of the
inputs
combine to form the
output(s).
Thus, the outputs of a CLN depend solely upon the current inputs; it is said to be memoryless. When any input changes, the output changes after a small, nearly instantaneous, propagation delay.
A CLN does not depend upon a clock of any sort, unlike a synchronous sequential network (state machine).