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Your cart is empty. CD74HC4067 CMOS 16 Channel Digital Analog Multiplexer Breakout Module Arduino Description:
This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067.
This chip is like a rotary switch - it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel pins (CHANxx).
It works with both digital and analog signals (the voltage can't be higher than VCC), and the connections function in either direction.
To control it, connect 4 digital outputs to the chip's address select pins (S0-S3), and send it the binary address of the channel you want (see the datasheet for details).
This allows you to connect up to 16 sensors to your system using only 5 pins!
Since the mux/demux also works with digital signals, you can use it to pipe TTL-level serial data to or from multiple devices. For example, you could use it to connect the TX pins of 16 devices to one RX pin on your microcontroller. You can then select any one of those 16 devices to listen to.
If you want two-way communications, you can add a second board to route your microcontroller's TX line to 16 device's RX lines.
By using multiple boards, you can create similar arrangements for I2C, SPI, etc.
The internal switches are bidirectional, support voltages between ground and VCC, have low "on" resistance and low "off" leakage, and to prevent crosstalk, perform "break-before-make" switching. The board also breaks out the chip's "enable" pin, which when driven high, will completely disconnect the common pin (all switches "off").
Features:
1. 2V to 6V operation
2. "On" resistance: 70 Ohms @ 4.5V
3. 6ns break-before-make @ 4.5V
4. Wide operating temperature range: -55℃ to 125℃
Kent
2025-08-30 12:07:58
There isn't any documentation, but its pretty straightforward to use. SEARCH: CD74HC4076 to find the data sheet and examples of people using this product on youtube, google, etc. It would be great if the seller could send header pins. that is a common courtesy when selling breakout boards. 5 stars just because it works as advertised.
Electrical engineer
2025-08-28 16:23:58
I have used several of these and find them to be good quality and easy to solder to the pads. Never got a bad one..
jperal
2025-07-04 12:05:59
Facil instalación y no presenta problemas de comunicación con diferentes plataformas
Jonathan
2025-04-17 13:51:56
Had a bunch of these stacked in parallel for a high-demand AC signal and voltage routing project. Worked flawlessly.
Andy
2025-04-16 18:19:35
You don't know you need a multiplexer until you need a multiplexer. And this thing is fantastic. I've been working on a home control system that uses a lot of temperatures. I can feed them all into here and utilize a single pin in my Arduino.Life simplification is great. And the code is easy to write. It just works.
Mike T
2025-04-14 18:03:36
I ordered 2 of these thinking they would work better than the cheaper ones you get in bulk but no. They appear to be much lower quality, where several of the outputs are crossed with different inputs. I will be returning these and sticking with the cheaper options.
Elizabeth
2025-02-06 11:59:05
perfecto. I used this to mux 8 analog sensors, voltage, temp and light, into my UNO. Simple to connect, plenty of instructions on the web.
Tim Sanders
2025-01-02 13:19:03
works well. no complaints
MJAD
2024-12-24 17:11:01
I ordered this item by mistake, but I have use for it. Works well.
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