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one output from 32 Input Circuit

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anbudanarunm

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Hai,

I need to select one source from the 32 inputs. So i gone through the Keypad forums and used the MM74C922 which is basically a 20 Keypad Encoder. As per the manual i multiplexed to 32 keys by using MM74C20. From the Output i have connected to a 5bit to 32 decoder. Here with this i have attached the schematic. Can any one check and give me the feedback of this circuit if there is any correction to be made.
 

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