Binary Counter Design

Sequential-Synchronous Counter Design The different steps for the design of the synchronous sequential counter circuits are: i)          State diagram ii)         state table and  excitation table iii)        Simplification using K-Map iv)         Logic Design Number of Flip-Flops required for implementing a counter: For N-bit counter, N flip-flops would be required For counter counting upto  N states, the number […]

Magnitude Comparator

Magnitude Comparator: A magnitude comparator is a combinational circuit that compares two binary numbers and determines their relative magnitude. The schematic block diagram in figure-1 has two inputs and three outputs. It compares two numbers for equality, less than and greater than conditions. Depending on the comparison, one of the output will be true and […]

Decoder and Encoder

Implementing with Decoders: A decoder is a combinational circuit that converts N-bit binary information to 2N unique output lines. It is able to represent upto 2N distinct elements of coded information. General type decoders usually come in sizes of Nx2N where N is the number of input lines. With a given input, only one of […]

Adder Circuits

Adder Circuits An adder is a combinational circuit that adds multi-bit (two or more). Different types of adders are: Half Adder : A combinational circuit that adds 2-bits Full Adder : A combinational circuit that adds 2-bits and a carry from the previous stage of addition. Ripple Carry Adder/ or Carry Propagate Adder: An adder that add […]

Design of Register using VHDL

AIM Write VHDL programs for the following circuits, check the wave forms and the hardware generated register                 shift register  Objective: The objective of this lab is to : revise the theory behind the working of the registers To learn VHDL coding for the registers Synthesize register using VHDL Verify the operation using functional Simulation […]

Design of Counters using VHDL

AIM Write a VHDL program for a counter and check the wave forms and the hardware generated Objective: Objective of this lab is to: Revise the theoretical work Learn the VHDL Coding Synthesize counters using VHDL Verify the functionality using ISIM simulator Theory: A digital counter is a sequential circuit consisting of a number of […]

Design of Flip-Flops in VHDL

AIM : Design of Flip-Flops in VHDL Objective: To revise the basic theory behind the working of the flip flops To understand the syntax of VHDL To synthesize and simulate using VHDL Theory: The theory extend from latches to flip-flops. the basic similarity and differences between a latch and a flip-flop being: Sl Latch Flip-Flop […]

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