Working on a project and I really dont know where to begin. We have dabbled once with IC 7447 and the 7 segment in lab but that was just a strait shot from some BCD switches, have not done anything more complicated than what is drawn out in the book. I have something built on paper that when its over 59 it would knock both displays above 9, but i now realize that does not display as 0, it is just jibberish.

I do need to build a truth table, but in this instance would I need to build a truth table for all inputs into the 7447 decoders as it reads below?

o List of all components that are required for your design with a short description of each one.

o Pin assignment of each component.

o Truth table of the outputs

o Output functions

o A drawing of your full circuit.

o Short description of your circuit inputs and outputs.

o Short manual of how to use the circuit.

o List of all components that are required for your design with a short description of each one.

o Pin assignment of each component.

o Truth table of the outputs

o Output functions

o A drawing of your full circuit.

o Short description of your circuit inputs and outputs.

o Short manual of how to use the circuit.

*In this project you will implement a circuit that*

Note that the 7-segment display shows decimal digit correctly only when the input of the 4 binary digits is a legal BCD from 0-9, the input with value larger than 9 (from A to F) needs to be processed.

**display and only display**the decimal numbers that are less than 60 (0-59). The number should be observable using two 7-segmant displays. The number over 60 should be displayed as 00.Note that the 7-segment display shows decimal digit correctly only when the input of the 4 binary digits is a legal BCD from 0-9, the input with value larger than 9 (from A to F) needs to be processed.

**Hint:**In the two-digit decimal number (< 60), each decimal digit can be represented as BCD so that each one can be displayed using one 7-segment display separately. The digit in ones can be coded as 4 binary digits, but the value larger than 9 (from A to F, illegal BCD) should be displayed as 0 by the 7-segmant display; the digit in tens can be coded as 3 binary digits, but the value larger than 5 (from 6 to 7) should be displayed as 0 by the other 7-segmant display.We have not done anything complicated so I am doubtful this is as complicated as I am making it. We have use of all the IC's in our lab (NAND, AND, OR, NOR, XOR etc etc)

I realize I need to build is so that whenever the 10's digit is above 5, send a signal back to the 1's digits(all of them?) and have them go to 0. Any help would be beneficial, especially with the truth table, I should be able to work it from that point.