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Experiment 5

The document outlines Experiment No. 5 for a Digital Logic Design course at Bangladesh University of Engineering and Technology. It involves designing circuits using the Adder IC 7483 for tasks such as converting BCD to Excess-3 code and vice versa, finding complements of BCD digits, and creating a 3-bit comparator. The report must include problem definitions, minimized equations, truth tables, circuit diagrams, and required instruments for implementation.

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15 views1 page

Experiment 5

The document outlines Experiment No. 5 for a Digital Logic Design course at Bangladesh University of Engineering and Technology. It involves designing circuits using the Adder IC 7483 for tasks such as converting BCD to Excess-3 code and vice versa, finding complements of BCD digits, and creating a 3-bit comparator. The report must include problem definitions, minimized equations, truth tables, circuit diagrams, and required instruments for implementation.

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Easy TO Solve
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Experiment:5

Bangladesh University of Engineering and Technology


Department of Computer Science and Engineering

Course: CSE 206


Digital Logic Design Sessional

Experiment No. 5
Topic: Designing Circuits using Adder IC 7483

Design and implement the following problems:

1. Suppose, you have to design a circuit which acts like a BCD code to Excess -3
code converter, if the controller bit is 0 and acts like an Excess-3 code to BCD
code converter, if the controller bit is 1. Design and implement the circuit
using Adder and XOR ICs.

Decimal Digit Excees-3 Code BCD Code


0 0011 0000
1 0100 0001
2 0101 0010
3 0110 0011
4 0111 0100
5 1000 0101
6 1001 0110
7 1010 0111
8 1011 1000
9 1100 1001

2. Design and implement the circuit f or the f ollowing problem using XOR gates
and one 7483 IC. You are not allowed to use inverter. You can use the XOR
gates f or inverter f unctions if needed.

Input Output
00 X+1
01 X
10 X’+1
11 X’

Here “+” means addition operation and X is a 4-bit number.

Answer the following question:

1. Design a circuit that f inds 9’s complement of a BCD digit if the controller
bit is 0 and 10’s complement of a BCD digit if the controller bit is 1. Use a 4
bit adder and other gates.

2. Using Adder IC 7483, design a 3-bit comparator circuit which will have three
outputs indicating whether P=Q, P>Q, and P<Q. Here, P (P2P1P0) and
Q (Q2Q1Q0) are both 3-bit numbers.

Report:

For each of the problems/questions report should cover:


▪ Problem def inition.
▪ Required equation in minimized f orm with necessary steps and
corresponding Truth table.
▪ Circuit diagram with pin number.
▪ Required instruments f or implementation.

Moreover, include the f ollowing sections to your report.


▪ Answer to the questions.

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