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DIGITAL ELECTRONICS LAB SYLLABUS


1. (a) Verification of the truth tables of TTL gates, e.g., 7400, 7402,7404, 7408, 7432,7486.
(b) Design, fabrication and testing of low frequency TTL clocks using NAND gates.
2. (a) Verification of the truth table of the Multiplexer 74150.
(b) Verification of the truth table of the De-Multiplexer 74154.
3. Design and verification of the truth tables of half adder and full adder circuits using gates 7483.
4. Study and verification of the operations of ALU 74181 with regards to addition / subtraction / comparison.
5. (a) Design and test of an S-R flip-flop using NOR/NAND gates.
(b) Verify the truth table of a J-K flip-flop (7476)
© Verify the truth table of a D flip-flop (7474) and study its operation in the toggle mode.
6. Operate the counters 7490, 7493 and 74192. Verify the frequency division at each stage. With a low frequency clock (say 1 Hz) display the count on LEDs.
7. (a) Verify the truth table of decoder driver 7447 / 7448. Hence operate a 7 segment LED display through a counter using a low frequency clock.
(b) Repeat the above with the BCD to Decimal decoder 7442 and an array of LEDs.