Title of Activity
Research about MUX/DEMUX
Objective
- Introduction to MUX/DEMUX
- Introduction to Mux/Demux 74HC4052 & Features
Content/Procedure
What is Mux/Demux
Mux is an abbreviation for multiplexing or multiplexer is refers to the
process of combining two or more inputs into a single, aggregate signal
transported via a single transmission channel, or a device that performs
the process. Demux, on the other hand, is an abbreviation for
demultiplexing or demultiplexer, and refers to the separation of two or
more previously multiplexed channels into their component parts, or a
device does so.
Application
Multiplexing and demultiplexing are used in digital
electronics to allow several microchips, on which a transistor or an
entire integrated circuit can be formed, to share common signal buses.
The transmission medium for the signal can be any material substance such as coaxial cable, twisted pair cable, fiber optic cable, water or
air capable of transmitting, or propagating, signals. Multiplexing
and demultiplexing applications include local area networks, such as
gigabit Ethernet and fiber optic networks, digital video applications,
such as high-definition television, and high-speed, low-cost, global
networks, such as those based Synchronous Optical Network and
Synchronous Digital Hierarchy technologies.
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| Type Of Mux/Demux |
Mux/Demux 74HC4052
It hook multiple serial devices to one
microcontroller, solve problem it can be. The
74HC4052 analog mux/demux is one of those parts that for microcontroller. 'Mux' means that the TX pin (X) can connect to any one of four outputs
(X0, X1, X2, X3). So it can connect your micro's TX pin to four
different listening devices such as the RX pins on a radio, GPS module
(for configuration), data logger, serial LCD and for 'Demux' means that the signal can go the other direction as well. So if have both a radio and a GPS unit trying to send data to microcontroller, the 74HC4052 allows you to switch between which that you want. For example if you've got the A/B
pins on the mux configured to listen to the GPS, you may miss incoming
serial characters from the radio.
It also know as 74HC4052 analog as well. This means that it can pass analog values
through the IC. So you can connect four analog sensors or signals to the
X0/1/2/3 pins, and have them piped into one analog pin. This allows you
to connect 8 analog devices using up 2 digital pins and 2 analog pins.
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| Pin for Mux/Demux 74C4052 |
Features:
- Large VCC range: 2V to 10V
- Connect one TX source to four RX receivers
- Connect one RX receiver to four TX sources
- Works both with digital and analog signals
- Output drives up to 20mA
For more information for Mux/Demux 74C44052
Result/Analysis
- Switch quickly enough between the options.
- Switch connects multiple inputs to multiple outputs depending on the user selection.
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