Hello,
I have to make an indication device which has 120 LED's.
I have connected that LED's to one port of micro controller via 74HCT574 and ULN2004.
i.e Micro controller port -> 74HCT574-> ULN2004 -> LED's
For 120 LED's I have used multiple 74HCT574 IC'c and ULN2004 IC's.
I am sending common data on all 74HCT574 and enabling particular 74HCT574 by giving clock to it.
Is this circuit okay?
Please suggest.
thanks,
paddy
I have to make an indication device which has 120 LED's.
I have connected that LED's to one port of micro controller via 74HCT574 and ULN2004.
i.e Micro controller port -> 74HCT574-> ULN2004 -> LED's
For 120 LED's I have used multiple 74HCT574 IC'c and ULN2004 IC's.
I am sending common data on all 74HCT574 and enabling particular 74HCT574 by giving clock to it.
Is this circuit okay?
Please suggest.
thanks,
paddy