Conversion of J-K Flip-Flop into T Flip-Flop:

Conversion of J-K Flip-Flop into D Flip-Flop:

1. Step-1: We construct the characteristic table of D flip-flop and excitation table of JK flip-flop.
2. Step-2: Using the K-map we find the boolean expression of J and K in terms of D.
3. Step-3: We construct the circuit diagram of the conversion of JK flip-flop into D flip-flop.

This chip has inputs to set and reset the flip-flop’s data asynchronously. Below is the Verilog code for a positive edge-triggered JK flip-flop. An active-low reset input has been added to asynchronously clear the flip-flop. module jk_ff_edge_triggered(Q, Qn, C, J, K, RESETn);

D flip flop is an edge-triggered memory device that transfers a signal’s value on its D input to its Q output when an active edge transition occurs on its clock input. Then, the output value is held until the next active clock cycle. Flip flops are inferred using the edge triggered always statements.

All flip-flops have two output states: Q = 1 and Q = 0 which changes in response to the application of the clock. For the SR latch, S = 1 sets Q to 1, and R = 1 resets Q to 0. A D-type bistable can be construction from JK flip-flops by the addition of an inverter between the J and K inputs.

1. Step-1: Construct the characteristic table of T flip-flop and excitation table of J-K flip-flop.
2. Step-2: Using K map, find the boolean expression for J and K in terms of T.
3. Step-3: Construct the circuit diagram for the conversion of J-K flip-flop into T flip-flop.

D Flip – flop to T Flip – flop When we need to convert the D flip – flop into T flip – flop, T (Toggle input) is the input of the combinational circuit with D as its output. Here Data (D) is the input of actual flip – flop. The truth table is drawn with the 4 possible combinations of the input T along with QP.

Verilog is a Hardware Description Language; a textual format for describing electronic circuits and systems. Applied to electronic design, Verilog is intended to be used for verification through simulation, for timing analysis, for test analysis (testability analysis and fault grading) and for logic synthesis.

Glossary Term: D Flip-Flop Definition. A D (or Delay) Flip Flop (Figure 1) is a digital electronic circuit used to delay the change of state of its output signal (Q) until the next rising edge of a clock timing input signal occurs.

The flip flop is a basic building block of sequential logic circuits. It is a circuit that has two stable states and can store one bit of state information. The output changes state by signals applied to one or more control inputs.

JK flip-flop is same as S-R flip-flop but without any restricted input. The restricted input of S-R latch toggles the output of JK flip-flop. JK flip-flop is modified version of D flip-flop. We attach a combinational circuit to a D flip-flop to convert it into JK flip-flop.

The type of JK flip-flop described here is an edge-triggered JK flip-flop. It is built from two gated latches: one a master gated D latch and a slave gated SR latch. This is a modified version of the edge-triggered D flip flop. The flip-flop’s outputs are fed back and combined with the inputs.

A D flip-flop stands for data or delay flip-flop. The outputs of this flip-flop are equal to the inputs. As we proceed, we will see how we can design a D flip flop using different levels of abstraction Gate level modeling uses primitive gates available in Verilog to build circuits.

The J-K flip-flop is the most versatile of the basic flip flops. The JK flip flop is a gated SR flip-flop with the addition of a clock input circuitry that prevents the illegal or invalid output condition that can occur when both inputs S and R are equal to logic 1.

Flip-flops are synchronous circuits since they use a clock signal. Using flip flops, we build complex circuits such as RAMs, Shift Registers, etc. A D flip-flop stands for data or delay flip-flop. The outputs of this flip-flop are equal to the inputs.