[SOLVED] help me plz design 4 bit combinational circuit

[i_am_j17]

hi!!! i badly need help...
*DESIGN A 4 BIT COMBINATIONAL CIRCUIT SO THAT THE OUTPUT IS 1 IF THE DECIMAL NUMBER REPRESENTED IS BY THE INPUTS IS EXACTLY DIVISIBLE BY 3. ASSUME ONLY VALID BCD DIGITS OCCUR AS ITS INPUTS.

tnx in advance...

 

[bayrameda]

write the numbers 0 to 9 in binary in 4 bits the inputs greater than 9 wil be "dont cares". give the name A B C D to the digits respectivly (most significant one is A). for 0, 3,6 and 9 the output will be 1. Then use the Kmap to derive the function. I think it will be f=C(D'B+B'D)

 

[i_am_j17]

hi bayrameda...could you please give me the full solution plz...huhu thank you

 

[bayrameda]

i took the photo of my solution.
it is a simple question if i didnt get it in a wrong way. r u new in logic?

 

[i_am_j17]

yup!!!i'm super new in logic...hehe 8s our 3rd day lecture...and i'm having hard times...huhu...thank you so much

 

[bayrameda]

are having your homework done to edaboard?
my logic midterm is on friday im studying

 

[i_am_j17]

opsss...sorry for disturbing you ...i'm also studying...soliciting answers through edaboard...hehe