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LDmicro Forum - demultiplexer |
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demultiplexer (by hassan)
hi!
I wish you continued health and happiness How to use circuits 16-channel analogue demultiplexer Philips HEF4067BP
(no subject) (by Ziggy)
Rethink what You want to do and then tell us.
(no subject) (by hassan)
Thank you for your concern
I want to control 16 commands from the microcontroller to control 16 outputs of HEF4067BP With five out of the microcontroller The image attached to the simulation to represent the control of 16 microcontrollers is only for simulation (5 out of microcontroller == 16 out of HEF4067BP) To increase the microcontroller outputs
(no subject) (by Ziggy)
Ok,,, I was confused by the content of the inital message.
HEF4067 is an analog multiplexer . The input to 4067 is connected to the analog to digital converter ( notionally) . The 16 lines from 4067 are connected to led bar graph display which os typically an analog display. So the whole notion at first glance was ..why the analog to digital output ...tobe treated as digital output? Why use analog multiplexer? OKyes while it is a little bit unorthodox, you could use 4067 to expand the four bits ( multiplexed channels) to display the digital values on LED display. You could reduce the five bits to four bits. Just consider that when the value going into the multiplexer input ( at pin X) is zero then the output is zero no matter which one of sixteen lines you select.
(no subject) (by hassan)
Ok.. Thank you
This is what I want the picture to illustrate Please help me in any way
(no subject) (by Ahmad sakr)
Dear Hassan
You said (To increase the microcontroller outputs).instead of using multiplexer you can use shift register instead. For increasing input and output pins of the microcontroller. I made a programs for that purpose, just informe me if you want. Egypt 01146283602
(no subject) (by Ziggy)
Have a look at following CMOS parts
4028 4514 4515 4555 4556
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