Digital Sequential Circuits
We discussed various combinational circuits in earlier chapters. All these circuits have a set of output(s), which depends only on the combination of present inputs. The following figure shows the block…
Digital Circuits – Threshold Logic
In previous chapters, we have implemented various combinational circuits using logic gates. Except NOT gate, the remaining all logic gates have at least two inputs and single output. Similarly, the threshold…
Programmable Logic Devices
Programmable Logic Devices (PLDs) are the integrated circuits. They contain an array of AND gates & another array of OR gates. There are three kinds of PLDs based on the type of…
Digital Circuits – De-Multiplexers
De-Multiplexer is a combinational circuit that performs the reverse operation of Multiplexer. It has single input, ‘n’ selection lines and maximum of 2noutputs. The input will be connected to one of…
Digital Circuits – Multiplexers
Multiplexer is a combinational circuit that has maximum of 2n data inputs, ‘n’ selection lines and single output line. One of these data inputs will be connected to the output based on…
Digital Circuits – Encoders
An Encoder is a combinational circuit that performs the reverse operation of Decoder. It has maximum of 2n input lines and ‘n’ output lines. It will produce a binary code equivalent to the…
Digital Circuits – Decoders
Decoder is a combinational circuit that has ‘n’ input lines and maximum of 2noutput lines. One of these outputs will be active High based on the combination of inputs present, when…
Digital Arithmetic Circuits
In this chapter, let us discuss about the basic arithmetic circuits like Binary adder and Binary subtractor. These circuits can be operated with binary values 0 and 1. Binary Adder …
Digital Combinational Circuits
Combinational circuits consist of Logic gates. These circuits operate with binary values. The output(s) of combinational circuit depends on the combination of present inputs. The following figure shows the block diagram of combinational…
Digital Circuits – Two-Level Logic Realization
The maximum number of levels that are present between inputs and output is two in two level logic. That means, irrespective of total number of logic gates, the maximum number of…
