These output levels are indicated by x ord in the truth tables and are called dont care conditions or incompletely specified functions. Written exam with solutions for ie12045 digital design monday 2710 2014 9. Learning why you buy integrated circuits four bit johnson counter the circuit shown is a 4bit counter, comprised of dtype flip flops connected in series, with data connected to q over and over, until you get to the last one, where notq is connected back to the first data. Logic gates and digital logic circuits simplification. Students should have a solid understanding of algebra as well as a rudimentary understanding of basic. It contains switching theory and logic design model question with answers.
Ee6301 notes syllabus all 5 units notes are uploaded here. Digital logic circuits ee8351, ee6301 anna university. It is designed for the undergraduate students pursuing courses in. Logic levels, propagation delay, power dissipation, fanout and fanin, noise margin, logic families and their characteristicsrtl, ttl, ecl, cmos click below link to download digital electronics syllabus notes question papers question banks 2 marks with answers part b questions with answers download. Digital logic is the basis of electronic systems, such as computers and cell phones. Graf this is the electronic devices questions and answers section on oscillator circuits. How many bits must each word have in onetofour line demultiplexer to be implemented using a memory. Jun, 2014 anna university ee6301 digital logic circuits syllabus notes 2 marks with answer is provided below. On the other hand, our digital technology also called noncontinuous or 2value discrete more effectively allows us to process and communicate more effectively. The number of flipflops is required for mod16 counter is 4.
In addition to reading the questions and answers on my site, i would suggest you to check the following, on amazon, as well. Half adder logic diagram truth table a half adder adds two onebit binary numbers a and b. Experiment 2 basic logic gates implementation using. Anna university ee6301 digital logic circuits syllabus notes 2 marks with answer is provided below. Jul 08, 2012 digital logic circuits important question and answers for 5 units 1. Digital systems, number systems and codes, boolean algebra and switching functions, representations of logic functions, combinational logic design, combinational logic minimization, timing issues, common combinational logic circuits, latches and flipflops, synchronous sequential circuit analysis, synchronous. Digital circuits contain a set of logic gates and these can be operated with binary values, 0 and 1. Switching theory and logic design model question with answers. Consequently the output is solely a function of the current inputs. Jan 09, 2020 multiple choice questions and answers by sasmita january 9, 2020.
Here is a schematic diagram for a logic probe built using comparators. Multiple choice questions and answers by sasmita january 9, 2020. Download pdf digital logic circuits ee6301 may june 2015 question paper digital logic circuits ee6301 may june 2016 question paper. Digital logic circuits important 16 mark questions ee8351 pdf free download.
The simplest halfadder design, pictured on the right, incorporates an. Download link is provided and students can download the anna university ee8351 digital logic circuits dlc syllabus question bank lecture notes part a 2 marks with answers part b marks and part c 15 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. Combinational logic circuits do not have an internal stored state, i. How the logic circuits can be designed using these gates. Digital logic circuits ee8351, ee6301 anna university lecture.
Electronic devices and circuits questions and answers pdf. Digital logic is rooted in binary code, a series of zeroes and ones each having an opposite value. This textbook covers latest topics in the field of digital logic design along with tools to design the digital logic circuits. Standard operations such as and, or, invert, equivalent, etc. Code is used to represent letters, numbers and punctuation marks. Digital logic circuits important question and answers for. The first step in understanding the digital circuits that control the function of electronic devices is the mastery of boolean logic. Digital logic circuits dlc2marks and 16marks question bank. Introduction to digital logic with laboratory exercises. Presently logic functions are performed by tiny integrated circuits ics. Multiple choice questions and answers on digital electronics. Logic gates practice problems key points and summary first set of problems from q. The digital logic family which has minimum power dissipation is cmos.
The integrated circuits are mounted in dip sockets inside the chassis of the logic board, with the inputs and outputs wired to external connectors. Digital logic circuits statement simplificationdigital logic dldvideo lecture for gate exam preparation ec ee cs it mca digital logic circuits notes, digital logic circuits by godse, digital. A circuit that adds one to a fourbit binary number. Pdf of switching theory and logic design model question with answers also added. The simplest halfadder design, pictured on the right, incorporates an xor gate for s and an and gate for c. Electromechanical relay logic worksheet digital circuits. Calculate the delay through the critical path, if the gate delays are. Ee6301 digital logic circuits important part a 2 mark part b 16 mark. Boolean logic is the foundation of digital circuitry. Draw a 4x16 decoder constructed with two 3 x 8 decoders may june 2012.
Notes on digital circuits digital circuits are collections of devices that perform logical operations on two logical states, represented by voltage levels. Pdf ee8351 digital logic circuits lecture notes, books. This system facilitates the design of electronic circuits that convey information, including logic gates. Pdf ee6301 digital logic circuits dlc books, lecture notes. Ec8392 digital electronics syllabus notes question banks. It indicates high and low logic states by means of leds, giving visual indication only if the voltage levels are appropriate for each state. Digital fundamentals by floyd covers the topics viz. Digital logic gates tutorial logic gates truth table. Recent questions and answers in digital logic gate overflow. Only use inverters, twoinputand, or, and xor gates. Digital logic circuits important question and answers for 5 units.
Pdf ee6301 digital logic circuits dlc books, lecture. Digital logic circuits lecture pdf 19p this note covers the following topics. The basic properties of boolean algebra are commutative property, associative property and distributive property. In such cases the output level is not defined, it can be either high or low. Pdf ee6301 digital logic circuits lecture notes, books. George boole, an english mathematician, established modern symbolic logic in 1854 with the publication of his paper, laws of thought. Later, we will study circuits having a stored internal state, i.
Like gates, the contacts of relays may be interconnected to perform standard logic functions such as and, or, nand, nor, and not. Prerequisites a basic idea regarding the initial concepts of digital electronics is enough to understand the topics covered in this tutorial. Ee8351 important 16 mark questions digital logic circuits. Like semiconductor gates, electromechanical relays have but two states. Written exam with solutions for ie12045 digital design. Ee6301 digital logic circuits two mark questions with answers uniti numbering systems and digital logic families 1 what are basic properties of boolean algebra. Pdf ee8351 digital logic circuits dlc books, lecture. Ee8351 digital logic circuits 16 marks download pdf. Digital electronics part i combinational and sequential logic. Ec8392 digital electronics syllabus notes question banks with. Ee6301 digital logic circuits syllabus notes question bank. We also saw that not gates and buffers are single input. Download link is provided and students can download the anna university ee6301 digital logic circuits dlc syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. Digital fundamentals by floyd 11th edition pdf free.
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Digital logic gate functions include and, or and not. Digital logic circuits important question and answers for 5 units 1. Digital logic design is used to develop hardware, such as circuit boards and microchip processors. This lab manual provides an introduction to digital logic, starting with simple gates and building up to state machines. Pdf ee8351 digital logic circuits lecture notes, books, important. In some logic circuits certain input conditions never occur, therefore the corresponding output never appears. Use algebraic transformations to prove or disprove that the two circuits given above implement the same function do not use a truth table or karnaugh map. In the hexadecimal system, we allow 16 values for each digit of a number. Ee6301 digital logic circuits important part a 2 mark part b 16.
Cmos circuits are extensively used for onchip computers mainly because of their extremely. Logic functions can be implemented in several ways. The semester design project is a separate homework that counts 5% of your final grade. Free logic circuits books download ebooks online textbooks. Online study material, lecturing notes, assignment, reference, wiki and important questions and answers. All of the digital circuits needed for the next two laboratories have been incorporated into prewired logic boards. Ee6301 dlc short answers, question bank for digital logic circuits are listed down for students to make perfect utilization and score maximum marks with our study materials. If you would like to learn digital electronics thoroughly, you should attempt to learn the complete set of questions and answers mentioned in video. Analog natural forces and signals are all analog or continuous which means we hear, see and change items in a continuous manner. A logic probe is a very useful tool for working with digital logic circuits. Pdf ee8351 digital logic circuits lecture notes, books, important parta 2 marks questions with answers, important partb 16 marks questions with answers. Function of the digital logic circuits can be represented by logic operations, i.