Syllabus of DE

Course Contents:

UNIT 1

• Binary Systems and logic circuits:

•  Decimal, Binary, Octal, Hexadecimal numbers and their inter conversions. 

• ASCII, Gray, Excess-3, 8-4-2-1,Error detecting and BCD codes. 

• Logic Gates.

•  Boolean algebra: Demorgon’s  theorem. Binary addition and subtraction. Unsigned Binary numbers, Signed binary numbers. 2’s complement representation and its arithmetic. 

UNIT 2

• Circuit analysis and design: 

• Boolean laws and theorems.

•  Sum of Product and Product of Sum simplification.

•  Two, three and four variable karnaugh map.

•  NAND and NOR implementation. Other two level implementation. Don’t care conditions.

UNIT III

• Combinational circuits0 Design procedure:

•  Half adder, full adder, adder-subtractor circuit.

•  Code converters. 

• Various logic circuits. Multilevel NAND circuit. Multilevel NOR circuit.

• Data Processing circuits.

• Multiplexers, demultiplexers, decoders and encoders.

•  Binary parallel adder, look ahead carry generator, magnitude comparator, ROM, PROM, PLA.

UNIT IV

• Sequential circuit:

• Flip-flops, triggering of flip-flops.

•  Analysis of clocked sequential circuits

•  state reduction and assignment

• flip-flop excitation tables.

UNIT V

• Registers, counters and integrated circuits.

•  Design of counters

• registers, shift registers

• Ripple counters, synchronous counters.

• TTL logic families.