Digital Electronics Practical

List of Practical

1. Study of Logic gates and their ICs and universal gates:

a. Study of AND, OR, NOT, XOR, XNOR, NAND and NOR gates

b. IC 7400, 7402, 7404, 7408, 7432, 7486, 74266

c. Implement AND, OR, NOT, XOR, XNOR using NAND gates.

d. Implement AND, OR, NOT, XOR, XNOR using NOR gates.

2. Implement the given Boolean expressions using minimum number of gates.

a. Verifying De Morgan’s laws.

b. Implement other given expressions using minimum number of gates.

c. Implement other given expressions using minimum number of ICs.

3. Implement combinational circuits.

a. Design and implement combinational circuit based on the problem given and

minimizing using K-maps.

4. Implement code converters.

a. Design and implement Binary – to – Gray code converter.

b. Design and implement Gray – to – Binary code converter.

c. Design and implement Binary – to – BCD code converter

d. Design and implement Binary – to – XS-3 code converter

5. Implement Adder and Subtractor Arithmetic circuits.

a. Design and implement Half adder and Full adder.

b. Design and implement BCD adder.

c. Design and implement XS – 3 adder.

d. Design and implement binary subtractor.

e. Design and implement BCD subtractor.

f. Design and implement XS – 3 subtractor.

6. Implement Arithmetic circuits.

a. Design and implement a 2-bit by 2-bit multiplier.

b. Design and implement a 2-bit comparator.

7. Implement Encode and Decoder and Multiplexer and Demultiplexers.

a. Design and implement 8:3 encoder.

b. Design and implement 3:8 decoder.

c. Design and implement 4:1 multiplexer. Study of IC 74153, 74157

d. Design and implement 1:4 demultiplexer. Study of IC 74139

e. Implement the given expression using IC 74151 8:1 multiplexer.

f. Implement the given expression using IC 74138 3:8 decoder.

8. Study of flip-flops and counters.

a. Study of IC 7473.

b. Study of IC 7474.

c. Study of IC 7476.

d. Conversion of Flip-flops.

e. Design of 3-bit synchronous counter using 7473 and required gates.

f. Design of 3-bit ripple counter using IC 7473.

9. Study of counter ICs and designing Mod-N counters.

a. Study of IC 7490, 7492, 7493 and designing mod-n counters using these.

b. Designing mod-n counters using IC 7473 and 7400 (NAND gates)

10. Design of shift registers and shift register counters.

a. Design serial – in serial – out, serial – in parallel – out, parallel – in serial – out, parallel – in parallel – out and bidirectional shift registers using IC 7474.

b. Study of ID 7495.

c. Implementation of digits using seven segment displays.