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ajmosca25
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guys, you just created a circuit a BCD 4bits Full adder but in my case i just need a 3bits-3bits addition so that i set the A4 to 0 by default...
i used 7483 for 4bits full adder and connect it to a 7447 BCD to 7-segment
A4A3A2A1 + B43B2B1
A4 & B4 are set to 0
so 7 is the maximum value in one input..
my problem is when A+B = greater 9...i need to display a real letter A-F not the default light up of 7447
ex.
101(5) + 101(5) = A (bit letter A)
110(6) + 101(5) = b (small letter b)
111(7) + 101(5) = C (big letter C)
110(6) + 111(7) = d (small letter d)
111(7) + 111(7) = E (small letter E)
but in default in 7447
111(7) + 111(7) = inverted big letter F...
is there an IC which can convert 10-15 to A-F in 7segment led?
or just another IC which can configure 7447?
~help me please
i used 7483 for 4bits full adder and connect it to a 7447 BCD to 7-segment
A4A3A2A1 + B43B2B1
A4 & B4 are set to 0
so 7 is the maximum value in one input..
my problem is when A+B = greater 9...i need to display a real letter A-F not the default light up of 7447
ex.
101(5) + 101(5) = A (bit letter A)
110(6) + 101(5) = b (small letter b)
111(7) + 101(5) = C (big letter C)
110(6) + 111(7) = d (small letter d)
111(7) + 111(7) = E (small letter E)
but in default in 7447
111(7) + 111(7) = inverted big letter F...
is there an IC which can convert 10-15 to A-F in 7segment led?
or just another IC which can configure 7447?
~help me please
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