Tools

Schematic Design Of D-Latch and D-Flip Flop

Schematic Design of D-Latch : Positive Level

Components Required -

  • 2:1 MUX
  • 2 inverters

Circuit Connections -

  • Drag the inverters and multiplexer to the workspace
  • The D and Clk inputs are connected to the upper node of MUX
  • Right node of MUX is connected to inverter 1's input node and inverter 1's output node is connected to the inverter 2's input node
  • Left node of MUX is connected to inverter 2's output
  • Output node of inverter 1 is connected to Q bar

Observations -

  • On clicking "validate" option after completing the circuit (assuming all connections are done correctly) you should see a graph under the observations tab
  • Observe the fluctuations occurring
  • By default, the input has been set to 1 and the corresponding output observed is 0. To check otherwise, double-click the input.

Schematic Design of Negative Edge Triggered D Flip-Flop

Components Required -

  • 1 Clk
  • 1 Clk_bar
  • 2 Latches

Circuit Connections -

  • Drag the Clk, Clk_bar and Latches to the workspace
  • Connect the top node of both latch 1 and latch 2 to Clk and Clk_bar respctively
  • Connect the input terminal to left node of Latch 1 and right node of Latch 1 is subsequently connected to Latch 2
  • Connect the output terminal to the right node of Latch 2

Observations -

  • On clicking "validate" option after completing the circuit (assuming all connections are done correctly) you should see a graph under the observations tab
  • Observe the fluctuations occurring

Schematic Design of Positive Edge Triggered D Flip-Flop

Components Required -

  • 1 Clk
  • 1 Clk_bar
  • 2 Latches

Circuit Connections -

  • Drag the Clk, Clk_bar and Latches to the workspace
  • Connect the top node of both latch 1 and latch 2 to Clk_bar and Clk respctively
  • Connect the input terminal to left node of Latch 1 and right node of Latch 1 is subsequently connected to Latch 2
  • Connect the output terminal to the right node of Latch 2

Observations -

  • On clicking "validate" option after completing the circuit (assuming all connections are done correctly) you should see a graph under the observations tab
  • Observe the fluctuations occurring.