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210243: Digital Electronics & Logic Design
Teaching Scheme: Examination Scheme:
4 Hrs/ week Theory: 100 Marks
Prerequisites: Basic Electronics Engineering
Learning Objectives
1. To learn and understand basic digital design techniques.
2. To learn and understand design and construction of combinational and
sequential circuits.
3. To introduce basic components of microprocessors
UNIT I 8 Hrs.(TB-1: Ch- 2, RB-1)
Number System & Logic Design Minimization Techniques:
Introduction: Binary, Hexadecimal numbers, octal numbers and number conversion.
Signed Binary number representation: Signed Magnitude, 1’s complement and 2’s
complement representation.
Binary, Octal, Hexadecimal Arithmetic: 2’s complement arithmetic.
Algebra for logic circuits: Logic variables, Logic functions -NOT, AND, NOR,
XOR, OR, XNOR, NAND
Boolean algebra: Truth tables and Boolean algebra. Idealized logic gates and
symbols. DeMorgan's rules Axiomatic definition of Boolean algebra, Basic theorems
and properties of Boolean algebra
Logic minimization: Representation of truth-table, SOP form, POS form,
Simplification of logical functions, Minimization of SOP and POS forms, Don’t care
conditions
Reduction techniques: K-Maps up to 4 variables and Quine-McClusky technique
UNIT II 6 Hrs. (TB-1: Ch-3, 4, RB- 2)
Logic Families:
TTL: Standard TTL characteristics- Speed, power dissipation, fan-in, fan-out, current
and voltage parameters, noise margin, operating temperature etc. Operation of TTL
NAND gate. TTL Configurations- Active pull-up, Wired AND, totem pole, open
collector.
CMOS: CMOS Inverter, CMOS characteristics, CMOS configurations- Wired Logic,
Open drain outputs
Interfacing: TTL to CMOS and CMOS to TTL
UNIT III 9 Hrs.( TB-1: Ch-5,6, RB- 1, 3)
Combinational Logic:
Codes:- BCD, Excess-3, Gray code , Binary Code and their conversion
Arithmetic Operations: - Binary Addition, Subtraction, Multiplication, Division,
BCD Addition
Circuits: - Half- Adder, Full Adder, Half Subtract or, Full Sub tractor, BCD adder
using and subtract using 7483, look ahead and carry, parity generator and checker
using 74180, magnitude comparator using 7485.
Multiplexers (MUX):- Working of MUX, Implementation of expression using MUX
(IC 74153, 74151).
Demultiplexers (DEMUX):- Implementation of expression using DEMUX, Decoder.
(IC 74138).
UNIT IV 8 Hrs.( TB-1: Ch-12, TB2: Ch-13, RB-1)
Sequential Logic:
Introduction: Sequential Circuits. Difference between combinational circuits and
sequential circuits
Flip- flop: SR, JK, D, T; Preset & Clear, Master and Slave Flip Flops their truth
tables and excitation tables, Conversion from one type to another type of Flip Flop.
Application of Flip-flops: Bounce Elimination Switch, registers, counters.
Registers: Buffer register; shift register;
Counters: Asynchronous counter. Synchronous counter, ring counters, BCD
Counter, Johnson Counter, Modulus of the counter (IC 7490), Pseudo Random Binary
Sequence Generator, Sequence generator and detector
UNIT V 9 Hrs.( TB-2: Ch-6,7, Appendix-A, RB-4)
ASM & VHDL :
Algorithmic State Machines: ASM charts, notations, design of simple controller,
multiplexer controller method
Examples: Sequence Generator, Types of Counter
VHDL: Introduction to HDL, VHDL- Library, Entity, Architecture, Modeling Styles,
Concurrent and Sequential Statements, Data Objects & Data Types, Attributes.
VHDL for
Sequential Circuits-Synchronous and Asynchronous Counter
UNIT VI 8 Hrs.( TB-1: Ch-13 (13.1 to 13.9))
PLDs & Introduction to Microprocessor :
PLD: PLA- Input, Output Buffers, AND, OR, Invert/ Non-Invert Matrix.
Design Example: Any 4 Variables SOP function using PLDs, Study of basic
architecture of FPGA.
Introduction to Microprocessor: Introduction of Ideal Microprocessor, Data Bus,
Address Bus, Control Bus, Microprocessor Based System- Basic Operation,
Microprocessor Operation, Microprocessor Architecture, Instruction Set
Text Books
1. R. Jain, “Modern Digital Electronics”, 3rd Edition, Tata McGraw-Hill, 2003, ISBN
0 – 07 – 049492 – 4
2. Stephen Brown, Zvonko Vranesic “ Fundamentals of Digital Logic with VHDL
Design” Mcgraw-Hill
Reference Books
1. John Yarbrough, “Digital Logic applications and Design” Thomson
2. Flyod “Digital Principles”, Pearson Education
3. Malvino, D.Leach “ Digital Principles and Applications”, 5th edition, Tata Mc-
Graw Hill
4. J.Bhaskar “VHDL Primer” 3rd Edition, Pearson Edition
210243: Digital Electronics & Logic Design
Teaching Scheme: Examination Scheme:
4 Hrs/ week Theory: 100 Marks
Prerequisites: Basic Electronics Engineering
Learning Objectives
1. To learn and understand basic digital design techniques.
2. To learn and understand design and construction of combinational and
sequential circuits.
3. To introduce basic components of microprocessors
UNIT I 8 Hrs.(TB-1: Ch- 2, RB-1)
Number System & Logic Design Minimization Techniques:
Introduction: Binary, Hexadecimal numbers, octal numbers and number conversion.
Signed Binary number representation: Signed Magnitude, 1’s complement and 2’s
complement representation.
Binary, Octal, Hexadecimal Arithmetic: 2’s complement arithmetic.
Algebra for logic circuits: Logic variables, Logic functions -NOT, AND, NOR,
XOR, OR, XNOR, NAND
Boolean algebra: Truth tables and Boolean algebra. Idealized logic gates and
symbols. DeMorgan's rules Axiomatic definition of Boolean algebra, Basic theorems
and properties of Boolean algebra
Logic minimization: Representation of truth-table, SOP form, POS form,
Simplification of logical functions, Minimization of SOP and POS forms, Don’t care
conditions
Reduction techniques: K-Maps up to 4 variables and Quine-McClusky technique
UNIT II 6 Hrs. (TB-1: Ch-3, 4, RB- 2)
Logic Families:
TTL: Standard TTL characteristics- Speed, power dissipation, fan-in, fan-out, current
and voltage parameters, noise margin, operating temperature etc. Operation of TTL
NAND gate. TTL Configurations- Active pull-up, Wired AND, totem pole, open
collector.
CMOS: CMOS Inverter, CMOS characteristics, CMOS configurations- Wired Logic,
Open drain outputs
Interfacing: TTL to CMOS and CMOS to TTL
UNIT III 9 Hrs.( TB-1: Ch-5,6, RB- 1, 3)
Combinational Logic:
Codes:- BCD, Excess-3, Gray code , Binary Code and their conversion
Arithmetic Operations: - Binary Addition, Subtraction, Multiplication, Division,
BCD Addition
Circuits: - Half- Adder, Full Adder, Half Subtract or, Full Sub tractor, BCD adder
using and subtract using 7483, look ahead and carry, parity generator and checker
using 74180, magnitude comparator using 7485.
Multiplexers (MUX):- Working of MUX, Implementation of expression using MUX
(IC 74153, 74151).
Demultiplexers (DEMUX):- Implementation of expression using DEMUX, Decoder.
(IC 74138).
UNIT IV 8 Hrs.( TB-1: Ch-12, TB2: Ch-13, RB-1)
Sequential Logic:
Introduction: Sequential Circuits. Difference between combinational circuits and
sequential circuits
Flip- flop: SR, JK, D, T; Preset & Clear, Master and Slave Flip Flops their truth
tables and excitation tables, Conversion from one type to another type of Flip Flop.
Application of Flip-flops: Bounce Elimination Switch, registers, counters.
Registers: Buffer register; shift register;
Counters: Asynchronous counter. Synchronous counter, ring counters, BCD
Counter, Johnson Counter, Modulus of the counter (IC 7490), Pseudo Random Binary
Sequence Generator, Sequence generator and detector
UNIT V 9 Hrs.( TB-2: Ch-6,7, Appendix-A, RB-4)
ASM & VHDL :
Algorithmic State Machines: ASM charts, notations, design of simple controller,
multiplexer controller method
Examples: Sequence Generator, Types of Counter
VHDL: Introduction to HDL, VHDL- Library, Entity, Architecture, Modeling Styles,
Concurrent and Sequential Statements, Data Objects & Data Types, Attributes.
VHDL for
Sequential Circuits-Synchronous and Asynchronous Counter
UNIT VI 8 Hrs.( TB-1: Ch-13 (13.1 to 13.9))
PLDs & Introduction to Microprocessor :
PLD: PLA- Input, Output Buffers, AND, OR, Invert/ Non-Invert Matrix.
Design Example: Any 4 Variables SOP function using PLDs, Study of basic
architecture of FPGA.
Introduction to Microprocessor: Introduction of Ideal Microprocessor, Data Bus,
Address Bus, Control Bus, Microprocessor Based System- Basic Operation,
Microprocessor Operation, Microprocessor Architecture, Instruction Set
Text Books
1. R. Jain, “Modern Digital Electronics”, 3rd Edition, Tata McGraw-Hill, 2003, ISBN
0 – 07 – 049492 – 4
2. Stephen Brown, Zvonko Vranesic “ Fundamentals of Digital Logic with VHDL
Design” Mcgraw-Hill
Reference Books
1. John Yarbrough, “Digital Logic applications and Design” Thomson
2. Flyod “Digital Principles”, Pearson Education
3. Malvino, D.Leach “ Digital Principles and Applications”, 5th edition, Tata Mc-
Graw Hill
4. J.Bhaskar “VHDL Primer” 3rd Edition, Pearson Edition
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