it is made of logic gates. We can realize a full adder circuit using different types of logic gates like AND, OR, NOT, NAND, NOR, etc.Here, we will discuss the implementation of a half subtractor using NAND gates. But before that lets have a look into the basics of the half ...
All optical NAND gateAll optical half adderThe computation of digital combinational and sequential logic functionality in the optical domain is one of the most important aspects, which opens the door of fast, secure and efficient switching and communication activity in the modern technological scenario...
In this tutorial, we will learn about the half and full adders, designing of a full adder using half adder in Digital Electronics.
From the above truth-table, the full adder logic can be implemented. We can see that the output S is an EXOR between the input A and the half-adder SUM output with B and CIN inputs. We must also note that the COUT will only be true if any of the two inputs out of the three ...
It is used to design different types of logic gates and logic circuits. In this chapter, we have utilized it to design a frequency-encoded optical XOR gate, half adder, and half subtractor using TOAD-based switch for the first time. The input/output bit patterns along with ON/OFF ratio ...
All Optical multiple logic gates with X-OR, NOR, OR, and NAND functions using parallel SOA MZI structures: theory and experiment J. Light Wave Technol. (2006) A. Poustie et al. All optical binary counter Opt. Exp. (2000) M. Nielson, M. Petersen, M. Nord, B. Dagens, Compact all ...
As well known, NOR gates and NAND gates of the CMOS logic need four FETs, and NOT gates require two FETs in the CMOS logic. Therefore, the half adder shown in FIG. 1 needs 14 FETs per one bit. Thus, if a half adder of n bits is constructed, 14n FETs are required. For example...
The SEM image of the half-adder sample without the nano-Au:(IR140:MEH-PPV) nanocomposite cover layer is shown in Figure 1B. Finally, a 100-nm-thick nano-Au:(IR140:MEH-PPV) film was deposited onto the upper surface of the full-adder sample by using spin coating method, and the ...
The RAMEN signal on conductor 107 is provided by the output of four-input NAND-gate 106 using address lines MA8, MA9, MA10 and MA11 of MADDR. The NMEN, RAMEN, and NMWEN is signals are used to write data from microprocessor 87 to the other modem circuits 80. Similarly, the NMEN ...
Adapting the novel method of switching, it is possible to obtain All-Optical analog of conventional electronic NOT/XOR, AND and NAND Gates. And using these gates it is further possible to construct All-Optical analog of Bistable Multivibrators, Astable Multivibrators and Half Adder. Accordingly, ...