Abstract :
For many years two-input NAND, AND, NOR, OR and EX-OR gates have been commercially available as cheap quad TTL integrated circuits (IC´s). Ideas on quad programmable two-input gates (three inputs per gate) have been published in the literature but have not reached the commercial stage [1]. However, complicated and expensive arithmetic logic units (ALU´s) programmable to perform 16 different functions on two 4-bit arguments have become commercially available. The four sections of ALU´s are not individually programmable.
Keywords :
Digital circuit design, EX-OR gate, inverter, J-K gate, latch, logic circuit, NAND gate, NIMP gate, OR gate, programmable gate circuit, standard gate, zero/one-true/complement element.; Circuit simulation; Flip-flops; Master-slave; Propagation delay; Sequential circuits; Uncertainty; Digital circuit design, EX-OR gate, inverter, J-K gate, latch, logic circuit, NAND gate, NIMP gate, OR gate, programmable gate circuit, standard gate, zero/one-true/complement element.;
