Author Topic: trouble with cd4051/4052 demultiplexers  (Read 1687 times)

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Offline aruna1Topic starter

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trouble with cd4051/4052 demultiplexers
« on: August 04, 2009, 12:22:56 PM »
hello
I'm having some troubles with cd4051 and 4052.I'm trying to expand my PIC's output port by using this as a DE-Multiplexer.but it seems not working properly.even though when i give different combination it switch correctly i cant run any output from it(but 4051 output pin shows 5V).

then i tried to do it as a multiplexer.(tried to connect PIC output with a buzzer through multiplexer mode) and then it works.but it doesn't work in de mux mode.

can anyone help me with this?

(i bought two more 4051,and 4052 because i though my first 4052 was burned.but even new ICs give this trouble)

here is the schematic
« Last Edit: August 04, 2009, 12:27:50 PM by aruna1 »
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