Q7Digital Electronics
Question
2 marks
Compare Combinational and Sequential circuits.
Answer
Combinational outputs depend instantly on current inputs, whereas sequential outputs depend on inputs and historical memory.
A combinational logic circuit completely lacks internal memory; its mathematical output is instantaneously and exclusively dictated by the exact signals currently present on its input pins (e.g., Adders, MUX). A sequential logic circuit intricately incorporates memory elements (flip-flops); its resulting output is a complex function of both the current external inputs AND the circuit's historical internal state (e.g., Counters, Registers).