BCD to 7-segment Decoder

Components Required -

• 22 NOT gates
• 10 2-input NAND gates
• 23 3-input NAND gates

Circuit Connections -

• With the help of the given diagram, try to connect the components in the circuit.
• After setting the values of A,B,C,and D click "Simulate".

Observations -

• The values of a,b,c,d,e,f and g correspond to inputs A,B,C,D as described in the theory section.
• If the circuit has been made as described as above, then upon clicking the "Submit" button a "Success" message will be displayed.

  EQUATIONS -

• a=A+C +BD + B'D'
• b=B' +C'D' +CD
• c=B + C'+ D
• d=B'D' +CD' + BC'D + B'C + A
• e = B'D' + CD'
• f=A + C'D' + BC' + BD'
• g=A + BC' +B'C + CD'

7-segment Display

Components Required -

• 1 BCD to 7-segment Decoder
• 1 7-segment Display

Circuit Connections -

• Connect the input points of the BCD to 7-segment Decoder with the input bits A,B,C, and D.
• Connect the output points of the BCD to the input points of the 7-segment Display, with point 'a' in Decoder corresponding to point 'a' in Display, and so on.

Observations -

• The inputs A,B,C,D generate digits on the display as described in the theory section.
• If the circuit has been made as described as above, then upon clicking the "Submit" button a "Success" message will be displayed.