Design of 2-input Multiplexer

Components Required -

• 2 Pass transistors

Circuit Connections -

• Drag the Pass transistors on the workspace
• Connect the left node of pass transistors 1 and 2 to input 1 and input 2 respectively
• Clk is connected to the top node of pass transistor 1 and bottom node of pass transistor 2
• Clk_bar is connected to the bottom node of pass transistor 2 and top node of pass transistor 1
• Right nodes of pass transistors are then connected to the output

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 Pass Transistor

Components Required -

• 1 Clk
• 1 Clk_bar
• 1 PMOS
• 1 NMOS

Circuit Connections -

• Drag the Clk, Clk_bar, PMOS and NMOS to the workspace
• Connect input 1 to the top node of PMOS and bottom node of NMOS
• Connect Clk to the middle node of PMOS and Clk_bar to the middle node of NMOS
• Finally, to complete the circuit, connect bottom node of PMOS and top node of NMOS to the output

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