CD74HC4067 High Speed ​​CMOS 16-Channel Analog Digital Multiplexer Breakout Module

The CD74HC4067 High-Speed CMOS
16-Channel Analog/Digital Multiplexer Breakout Module is a breakout
board for the very handy 16-Channel Analog/Digital
Multiplexer/Demultiplexer. 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 CD74HC4067  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. “On” resistance: 70 Ohms @ 4.5V
2. 6ns break-before-make @ 4.5V

No Guarantee No Warranty

Product image is for reference purpose only.