i tried to connect some LEDs to the output of the 74ls47 and the other side i mean pin 7,1,2,6 to PIc16f877 , i mean that i need to let my pic run the 74l47 and that lead the LEDs to light .
i followed the datasheet truth table , but no led work ....
if you opened the attached photo , you'll find that all the outputs of the 74ls47 is High although i'm sending high on one terminal RB.5 from the pic , how to turn them low to run my LED
all of that work i'm still simulating at Proteus
please view the photo and tell me what's wrong.