This is a 2-bit magnitude comparator for A=B.
This is a 2-bit magnitude comparator for A<B.
This is my binary comparator, that compares two 4-bit binary numers (A and B) and outputs whether A=B, A>B or A<B.
I normaly like to build circuits in Minecraft, but for this "bigger" project I needed to use something quicker and easier.
Maybe this comes in handy for someone :-)
Inputs (on the left):
- Number A {A4, A3, A2, A1}
- Number B {B4, B3, B2, B1}
- chp_enb - chip enable ... When set to 1, enables the output
Outputs (on the right):
- A=B
- A>B
- A<B
This project includes an application of digital logic to a password comparing machine. For more informations or questions about that design project you write an email to the following address: [email protected]
4 Bit Comparator circuit
A - A3 A2 A1 A0 B - B3 B2 B1 B0
A = B when, A3=B3,A2=B2,A1=B1,A0=B0.
A>B when, A3>B3 OR A3=B3 AND A2>B2 OR A3=B3 A2=B2 AND A1>B1 OR A3=B3 A2=B2 A1=B1 AND A0>B0.
A<B when, A3<B3 OR A3=B3 AND A2<B2 OR A3=B3 A2=B2 AND A1<B1 OR A3=B3 A2=B2 A1=B1 AND A0<B0.
In 1 Bit comparator ckt,
when A<B, C = A'B ; A>B, E = AB' ; and A=B , D= A xnor B