board I/O module

74HC4051 8-channel analog multiplexer

The 74HC4051 8-channel analog multiplexer is a board I/O module in the LabWired part catalog. Its catalog type is 74hc4051. It connects to the MCU over GPIO. It has 15 pins. A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.

From the catalog: analog_mux. S0–S2 select Y0..Y7 onto Z, which drives one ADC channel. E is optional (absent means tied active). Y inputs are sources that name this mux, not MCU pads.

Key facts

Category	Board I/O modules
Catalog type	`74hc4051`
Interface	GPIO
Pins	15

What LabWired simulates

What is simulated

Simulated device model

How it was validated

Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.

74HC4051 8-channel analog multiplexer pinout

Power: VCC, GND
GPIO: S0, S1, S2, E
Other signals: Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7, Z

Pin	Electrical type	Function
`Y0`	Passive	—
`Y1`	Passive	—
`Y2`	Passive	—
`Y3`	Passive	—
`Y4`	Passive	—
`Y5`	Passive	—
`Y6`	Passive	—
`Y7`	Passive	—
`Z`	Passive	—
`S0`	Input	GPIO
`S1`	Input	GPIO
`S2`	Input	GPIO
`E`	Input	GPIO
`VCC`	Power input	Supply
`GND`	Power input	Supply

How to simulate the 74HC4051 8-channel analog multiplexer in LabWired

Open the Playground at app.labwired.com and place an MCU board.
Add the 74HC4051 8-channel analog multiplexer (catalog type 74hc4051).
Connect VCC and GND to the supply and ground of the board.
Connect S0, S1, S2 and E to free GPIO pins.
Connect Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 and Z as your circuit needs.
Run the firmware. It drives and reads the pins of the part, and the device model responds on those pins.

Related Board I/O modules

All Board I/O modules · All parts

No manufacturer datasheet is indexed for this part yet, so none is linked here.

Wire it up in Playground → See the full validation matrix