2-to-1 Multiplexer Circuit

2-to-1 Multiplexer

A 2-to-1 multiplexer routes one of two inputs to a single output. The select signal determines whether Y follows I0 or I1. This small circuit is a useful starting point for understanding bus selection, signal routing and Boolean logic implementation. The drawing labels each signal separately so the many-to-one relationship is apparent without showing a gate-level implementation. Larger multiplexers use the same idea with more inputs and additional select bits. Include an enable pin when the selected output must also be controlled by a separate signal.

Tipo Diagrama de circuitosNorma IEEE Std 315 / ANSI Y32.2Motor schematex-circuitActualizado 24/9/2026

La solicitud

“Draw a 5 V 2-to-1 multiplexer with I0 and I1 data inputs, a select input S, and output Y with a 10 kΩ load to ground.”

Entonces pruebaChange I0 to a 5 V input.Add an enable input.

Qué hay en este dibujo

Lee las decisiones que hay detrás.

01Two data inputs

I0 and I1 are the sources to select.

02Select line

S determines which input reaches Y.

03Single output

Y carries the selected logic value.

Use this for a basic data-routing or logic-selection circuit.

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Preguntas frecuentes

Preguntas habituales

What does a 2-to-1 multiplexer do?

It selects either I0 or I1 and routes the selected input to Y.

How many select lines does it need?

One select line is enough to choose between two inputs.

Is a multiplexer a logic gate?

It is a combinational logic device that can also be used to implement Boolean functions.