EX-403 · Digital Electronics Logic Design/Official Syllabus
Digital Electronics Logic Design (EX-403) - Official Syllabus
1
Unit 1
Number Systems and Codes
- Digital number systems
- base conversion
- Binary
- Decimal
- octal
- Hexadecimal
- number system with radix r
- Gray codes
- Alphanumeric codes – ASCII code and BCD codes
- concept of parity
- complementr’s& (r-1)’s
- subtraction with complements
- signed Binary numbers
- Error Detecting & Correcting codes
- Basic Theorems & Properties of Boolean algebra: AND, OR, NOT operators
- laws of Boolean algebra
- Demorgon’s theorem
- Boolean expression & logic diagram
- Negative logic
- Alternate logic gate representation (concept of bubbled gates)
- canonical and standard Forms (Minterms&Maxterms)
- sum of minterms& product of maxterms
- conversion between canonical forms
- Truth table & maps
- 2,3,4,5 and 6 variable maps
- solving digital problems using Maps
- Don’t care conditions
- Tabular minimization
- Sum of product & product of sum reduction
- Exclusive OR & Exclusive NOR circuits
- Parity generator &checkers
2
Unit 2
Combinational Circuits
- Design procedure
- Adders (half and Full)
- subtractor (half and full)
- code convertors
- Analysis of design
- Universal building blocks
- Implementation of any logic circuit with only NAND gates or with only NOR gates
- Binary serial adder
- parallel adder
- serial/parallel adder
- look ahead carry generator
- BCD adder
- Binary multiplier
- Magnitude comparator
- Decoder
- Demultiplexer
- Encoders
- priority encoder
- Multiplexers & implementation of combinational logic diagram
3
Unit 3
Sequential Logic Circuit
- Latches
- SR latch with NAND & NOR gates
- D latch
- edge triggered flip flop
- J-K flip flop
- T flip flop
- Master slave flip flop
- Analysis of clocked sequential circuit
- state table
- state diagram
- state reduction state equations
- state assignments
- flip flop excitation table & characteristic equations
- Design procedure for sequential circuits
- Design with state reduction
- Applications of flipflop
4
Unit 4
Registers and Counters
- Asynchronous and Synchronous counter
- counters with MOD numbers
- Down counter
- UP/DOWN counter
- propagation delay in ripple counter
- programmable counter
- Pre- settable counter
- BCD counter
- cascading
- counter applications
- Decoding in counter
- Decoding glitches
- Ring Counter
- Johnson counter
- Rotate left & Rotate right counter
- Registers – Buffer
- Shift left
- shift right
- shift left/Right registers
- parallel in parallel out
- serial in serial out
- parallel in serial out
- serial in parallel out registers
5
Unit 5
Memory and Data Converters
- Random Access Memory
- Timing waveform
- Memory Decoding
- Internal Construction
- Coincident decoding
- Addressmultiplexing
- Read only memory – Combinational circuit implementation
- Type of ROMs
- combinational PLDs
- Programmable Logic Array (PLA)
- Programmable Array Logic (PAL)
- sequential programmable device
- Analog todigital conversion – Ramp type
- dual slope
- integration
- successive approximation
- parallel conversion
- parallel/ serial conversion
- convertor specifications
- Digital to Analog convertors – Binary weighted & R/2R D to A convertors
Laboratory Experiments
- Verification of all the logicgates.
- Design of BCD to Excess-3 codeconverter.
- Implementation of NAND & NOR as Universalgate.
- Design of RS, JK, T& D Flipflop.
- Multiplexer /Demultipexer based boolean function
- Design of combinational circuit forthe (i) Halfadder (ii) Fulladder (iii) Half subtractor (iv) Fullsubtractor
- Design various A-D & D-Aconvertors.
- Verify the truth table of SR flip flop
- Verify BCD to seven segment decoder.
Reference Books
- Fundamentals of digital circuits — A. Anand Kumar — PHI
- Digital Electronics — A K Maini — Wiley India
- Digital Design with standard MSI and LSI — Thomas Blakeslee — Wiley Interscience
- Modern digital electronics — Jain RP — TMH
- Digital Logic & Computer design — M Mano — PHI
- Digital Systems Principle & applications — Tocci — Pearson EducationAsia
- Digital Electronics — Gothmann — PHI
- Digital Principles and applications — Malvino, Leech — TMH
- Digital Fundamentals — Floyad — UBS
- Logic Design Theory — Nripendra N. Biswas — PHI
- Digital Electronics — D.C. Green — Pearson EducationAsia
- Digital Electronics — SubrataGhoshal — Cengage
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