| Abstract: |
1. Introduction
Digital Systems; Data representation and coding; Logic circuits, integrated circuits; Analysis, design and implementation of digital systems; CAD tools.
2. Number Systems and Codes
Positional number system; Binary, octal and hexadecimal number systems; Methods of base conversions; Binary, octal and hexadecimal arithmetic; Representation of signed numbers; Fixed and floating point numbers; Binary coded decimal codes; Gray codes; Error detection and correction codes ' parity check codes and Hamming code.
3. Combinatorial Logic Systems
Definition and specification; Truth table; Basic logic operation and logic gates.
4. Boolean Algebra and Switching Functions
Basic postulates and fundamental theorems of Boolean algebra; Standard
representation of logic functions ' SOP and POS forms; Simplification of switching
functions ' K'map and Quine'McCluskey tabular methods; Synthesis of combinational logic circuits.
5. Logic families
Introduction to different logic families; Operational characteristics of BJT in saturation and cut'off regions; Operational characteristics of MOSFET as switch; TTL inverter ' circuit description and operation; CMOS inverter ' circuit description and operation;Structure and operations of TTL and CMOS gates; Electrical characteristics of logic gates – logic levels and noise margins, fan'out, propagation delay, transition time, power consumption and power'delay product.
6. Combinational Logic Modules and their applications
Decoders, encoders, multiplexers, demultiplexers and their applications; Parity
circuits and comparators; Arithmetic modules' adders, subtractors and ALU; Design examples.
7. Sequential Logic systems:
Definition of state machines, state machine as a sequential controller; Basic
sequential circuits' latches and flip'flops: SR'latch, D'latch, D flip'flop, JK flip'flop, T flip'flop; Timing hazards and races; Analysis of state machines using D flip'flops and JK flip'flops; Design of state machines ' state table, state assignment,
transition/excitation table, excitation maps and equations, logic realization; Design
examples
8. State machine design approach
Designing state machine using ASM charts; Designing state machine using state
diagram; Design examples
9. Sequential logic modules and their applications
Multi'bit latches and registers, counters, shift register, application examples.
10. Memory
Read'only memory, read/write memory ' SRAM and DRAM
11. Programmable Logic Devices:
PLAs, PALs and their applications; Sequential PLDs and their applications; State'
machine design with sequential PLDs; Introduction to field programmable gate arrays (FPGAs)
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Electronics & Communication Engineering
Digital Circuits and Systems
