Hi guys,
i am working on a very simple circuit that take in a 3 bit unsigned value ABC and output a 5 bit binary number S0-S4 that is 5 times of the input value.
This my truth table :
SOP expressions i got are :
S4 = A
S3 = B + A.C
S2 = A.C' + A'.C = A XOR C
S1 = B
S0 = C
I have a 74LS20 NAND gate and a 74LS83 4-bit Parallel adder only, how do i actually start connecting this circuit?
i am working on a very simple circuit that take in a 3 bit unsigned value ABC and output a 5 bit binary number S0-S4 that is 5 times of the input value.
This my truth table :
Rich (BB code):
A B C S4 S3 S2 S1 S0 V
0 0 0 0 0 0 0 0 1
0 0 1 0 0 1 0 1 1
0 1 0 0 1 0 1 0 1
0 1 1 0 1 1 1 1 1
1 0 0 1 0 1 0 0 1
1 0 1 1 1 0 0 1 1
1 1 0 1 1 1 1 0 1
1 1 1 X X X X X 0 (Invalid)
S4 = A
S3 = B + A.C
S2 = A.C' + A'.C = A XOR C
S1 = B
S0 = C
I have a 74LS20 NAND gate and a 74LS83 4-bit Parallel adder only, how do i actually start connecting this circuit?
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