2:1 Multiplexer in Digital Electronics

-
2:1 Multiplexer in Digital Electronics

2:1 Multiplexer

  • A 2-to-1 multiplexer consists of two inputs Do and D1 and one select line S and one output Y. Depends on the select signal, the output is connected to either of the inputs.

    • The block diagram of 2:1 multiplexer

  • The mux will be enabled if enable(E) is activated. After enabling if the select line is low, then the output will be switched to D1 input. The boolean expression for the output becomes Do = when S=0 and output is D1 when S=1.

    • Boolean expression for 2:1 multiplexer

    Y = Do S' + D1 S
  • The logic circuit of 2:1 multiplexer can be implemented by using logic gates. It consists of two AND gates, one Not gate and one or gate. When the select line, S=0 the output of the lower AND gate is zero, but the Upper AND gate is Do. Thus the output generated by OR gate is equal to Do.
  • When S = 1, the output of the AND gate is zero, but the output of lower AND gate is D1. The output of the OR gate is D1. The boolean expression is satisfied
Location: India

Comments

  1. UnknownMay 31, 2021 at 8:14 PM

    Superb bro

    ReplyDelete
  2. John MJune 26, 2023 at 8:13 AM

    The diagrams easily drive the point home. A good post for digital electronics students!

    ReplyDelete

Post a Comment

Popular posts from this blog

Miller Crystal Oscillator

-
Image
Miller Crystal Oscillator Miller Crystal Oscillator Similar to modifications in Colpitt's oscillator, the Hartley oscillator circuit can be modified, to get Miller crystal Oscillator In Hartley oscillator circuit, two inductors and one capacitor is required in the tank circuit. One inductor is replaced by the crystal which acts as an inductor for the frequencies slightly greater then the series resonant frequency. The tuned circuit of L1 and C is offtuned to behave as an inductor i.e. L1. The crystal behaves as other inductance L2 between base and ground. the Internal capacitance of the transistor acts as a capacitor required to fullfill the elements of the tank circuit The crystal decides the operating frequency of the oscillator.
Read more

Electronic oscillator division types and use

-
Image
Electronic oscillator division types and use Electronic oscillator division types and use Introduction to oscillator An oscillator is a amplifier and it is a close loop circuit or network. It uses the Positive feedback. It is not require the externel signel and generate the a desired frequency A oscillatpr acts like generator, It oscillates the constant amplitude and frequency. Oscillator can generate the frequency upto gigahertz. Classification of the Oscillators Oscillators are classified based on the type of waveforms generate from the oscillator, range, frequency, parameters used. Based on Output waveforms. Based on circuit components. Range of operating frequency. Based on feedback uses or not uses Types of oscillatprs LC Oscillator Har
Read more