TWO TYPES OF LOGIC CIRCUIS Combinational At any point in time, the output of the circuit is related to its current input signals by some Boolean expression(e.g, multiplexer, ROM, adder, etc) Sequential Its output is not only a function of the current input data, but also of previous values of the input signals(e.g, registers, counters and memory) Combinational Combinational Out Out Circuit (a) Combinatio (b) Sequential▪Combinational ▪ At any point in time, the output of the circuit is related to its current input signals by some Boolean expression (e.g., multiplexer, ROM, adder, etc). ▪Sequential ▪ Its output is not only a function of the current input data, but also of previous values of the input signals (e.g., registers, counters and memory). 6