Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: aruna1 on August 04, 2009, 12:22:56 PM
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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
(http://i30.tinypic.com/352nbzd.jpg)