Logic gates 07 11-2014
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one of the good slide to learn logic gates. and, or, not, nand, nor, etc. will make you understand logic gates effectively.
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Logic gates
Logic gates are electronic digital circuits that perform logic functions. The common logic gates are AND, OR, NOT, NAND, NOR, XOR, and XNOR. Each gate has a corresponding logic symbol and truth table. Logic gates can be combined to build more complex digital circuits like adders, subtractors, and parity checkers. Common logic gate integrated circuits include the 7400, 7402, 7404, 7408, and 7432 series, with each having a specific pin configuration. Logic gates are fundamental building blocks for digital electronics.
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This document discusses digital logic circuits and binary logic. It begins with an overview of binary logic, logic gates like NAND, NOR and XOR, and Boolean algebra. It then covers analog vs digital signals, quantization, and converting between analog and digital formats. Various representations of digital designs are presented, including truth tables, Boolean algebra, and schematics. Common logic gates and their representations are described. The document discusses design methodologies and analyses, as well as simulation of logic circuits. It also covers elementary binary logic functions, basic identities of Boolean algebra, and converting between Boolean expressions and logic circuits.
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It describes the basic logic gates - OR, AND, NOT, NOR, NAND, EXOR and EXNOR - and provides their truth tables and circuit designs. It also explains the working of step-down and step-up transformers through circuit diagrams and discusses transformer ratio, efficiency and various energy losses in transformers.
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Logic Gates
Logic gates are elementary building blocks of digital circuits that have inputs and outputs representing binary digits 0 and 1. There are several basic types of logic gates including AND, OR, NOT, XOR, NAND, NOR, and XNOR gates. Each gate functions according to specific rules - for example, an AND gate only outputs 1 if all its inputs are 1, while a NAND gate produces the opposite output of an AND gate. Logic gates are used in various electronic devices and circuits.
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Logic gates
Logic gates are electronic digital circuits that perform logic functions. The common logic gates are AND, OR, NOT, NAND, NOR, XOR, and XNOR. Each gate has a corresponding logic symbol and truth table. Logic gates can be combined to build more complex digital circuits like adders, subtractors, and parity checkers. Common logic gate integrated circuits include the 7400, 7402, 7404, 7408, and 7432 series, with each having a specific pin configuration. Logic gates are fundamental building blocks for digital electronics.
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This document discusses digital logic circuits and binary logic. It begins with an overview of binary logic, logic gates like NAND, NOR and XOR, and Boolean algebra. It then covers analog vs digital signals, quantization, and converting between analog and digital formats. Various representations of digital designs are presented, including truth tables, Boolean algebra, and schematics. Common logic gates and their representations are described. The document discusses design methodologies and analyses, as well as simulation of logic circuits. It also covers elementary binary logic functions, basic identities of Boolean algebra, and converting between Boolean expressions and logic circuits.
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This document describes various logic gates and their workings. It begins with introducing logic gates and their basic components like inputs, outputs, truth tables, and Boolean algebra. It then explains the OR gate, AND gate, NOT gate, NOR gate, NAND gate, EX-OR gate, and EX-NOR gate through their circuit diagrams and truth tables. Each gate is constructed using basic electronic components like diodes, transistors, and resistors. The document concludes that logic gates are fundamental building blocks of modern electronics and digital circuits.
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This presentation introduces digital logic gates and their applications. It discusses different types of logic gates like AND, OR, NOT, NAND, NOR gates. It explains how individual logic gates can be connected to form more complex circuits. The presentation also covers topics like different logic gate families (TTL, CMOS), their input/output voltage levels, integrated circuit classification based on transistor count (SSI, MSI, LSI, VLSI etc.) and sources of noise in digital circuits.
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The document provides details about demonstration experiments involving logic gates and transformers.
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Logic gates are elementary building blocks of digital circuits that have inputs and outputs representing binary digits 0 and 1. There are several basic types of logic gates including AND, OR, NOT, XOR, NAND, NOR, and XNOR gates. Each gate functions according to specific rules - for example, an AND gate only outputs 1 if all its inputs are 1, while a NAND gate produces the opposite output of an AND gate. Logic gates are used in various electronic devices and circuits.
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- Boolean algebra has laws like commutative, distributive, complement, identity, and associative laws that define the operations of logical variables and simplify expressions. Together, Boolean algebra and logic gates form the foundation of digital circuit and computer design.
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This document provides an overview of logic gates. It discusses how logic gates perform logical operations on inputs to produce outputs, and are commonly implemented electronically using transistors. The document then explains various logic gates like NOT, AND, OR, NAND, NOR, and XOR. It provides truth tables to illustrate the functionality of each gate. It also discusses how more complex logic can be achieved by combining simple gates. Finally, the document touches on how logic gates are used to build basic memory circuits like flip-flops, and their role in modern computer components.
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The NAND gate is a universal gate that can be used to build all basic logic gates. It is constructed by connecting a NOT gate to the output of an AND gate. In its truth table, the NAND gate output is 0 only when both inputs are 1, and 1 for all other combinations. Circuits for AND, OR, NOT, NOR, half adder, and full adder can all be made using only NAND gates, demonstrating its universal properties for building digital logic functions.
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2. Descriptions of three basic logic gates - OR, AND, and NOT - including their symbols, Boolean expressions, and truth tables.
3. Sections on each of the three basic gates that explain how to simulate them using components like diodes, transistors, and resistors, and provide examples of their truth tables.
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This document discusses various encoders and decoders used in digital circuits. It describes decimal to BCD encoders that convert decimal numbers to binary coded decimal. Priority encoders are discussed that compress multiple inputs into fewer outputs based on priority. Decoders discussed include BCD to decimal decoders that convert BCD to decimal numbers, and seven segment decoders that convert codes to activate the segments of seven segment displays. Applications of encoders and decoders include data communications, compression, security, and making data human readable.
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- Boolean algebra has laws like commutative, distributive, complement, identity, and associative laws that define the operations of logical variables and simplify expressions. Together, Boolean algebra and logic gates form the foundation of digital circuit and computer design.
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The document discusses logic gates and their usage. It introduces different logic gates including AND, OR, NAND, NOR, XOR and XNOR. It describes how to draw logic circuits from Boolean expressions and analyze circuits to obtain logical expressions. The document also discusses how NAND and NOR gates are universal and can be used to build any other logic gate. It covers positive and negative logic and how to construct sum-of-product and product-of-sum expressions using logic gates.
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This document provides an overview of logic gates. It discusses how logic gates perform logical operations on inputs to produce outputs, and are commonly implemented electronically using transistors. The document then explains various logic gates like NOT, AND, OR, NAND, NOR, and XOR. It provides truth tables to illustrate the functionality of each gate. It also discusses how more complex logic can be achieved by combining simple gates. Finally, the document touches on how logic gates are used to build basic memory circuits like flip-flops, and their role in modern computer components.
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This document provides an overview of logic gates and digital logic circuits. It defines common logic gates like AND, OR, NOT, NAND and NOR. It describes transistor-transistor logic (TTL) and complementary metal-oxide-semiconductor (CMOS) logic families and their characteristics. Examples of logic circuits using TTL and CMOS gates are also presented.
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Logic Gates.pptx
The document discusses logic gates and Boolean algebra. It defines key logic gate terms like AND, OR, NAND, NOR, and XOR gates. It provides truth tables that define the output of each gate based on all possible input combinations. Boolean algebra laws and operations are also covered, including addition, multiplication, commutative laws, associative laws, and the distributive law. Methods for converting between Boolean expressions, truth tables, and logic circuits are described. Examples are provided to illustrate how to derive the expression, truth table, or circuit from one of the other representations.
ICT Basic Logic Gates Lessons.pptx
Logic gates are basic electronic circuits that perform logical operations and produce binary outputs. The common logic gates are OR, AND, NOT, NAND, NOR, XOR, and XNOR. An OR gate output is 1 if one or more inputs are 1. An AND gate output is 1 only if all inputs are 1. A NOT gate inverts the input so its output is the opposite state. Combinations of gates can create more complex gates like NAND and NOR. Logic gates have applications in electronic devices like alarms and locks.
logic gates
The document discusses different types of logic gates - inverter, AND, OR, NAND, NOR, and exclusive OR (XOR) gates. It provides the truth tables, logic symbols, and logical expressions for each gate. The inverter inverts the input, while AND and NAND gates output 1 only when all inputs are 1. OR and NOR gates output 0 only when all inputs are 0. XOR outputs 1 when only one input is 1, while exclusive NOR (XNOR) outputs 1 when both inputs are the same.
1,basic and derived logic gates.pdf
The document discusses basic and derived logic gates. It begins by introducing Boolean algebra and defining logic 0 and 1. It then explains the three basic logic gates - OR, AND, and NOT - through truth tables and circuit diagrams. The OR gate's output is 1 if any input is 1. The AND gate's output is 1 only if all inputs are 1. The NOT gate inverts the input. Complex logic circuits can be described algebraically using these basic gates and Boolean operations.
Logic gates
- The document describes several types of basic logic gates - inverter, AND, OR, NAND, NOR, XOR, and XNOR.
- Each logic gate is defined by its truth table and logical expression showing the output for all combinations of inputs.
- Complex logic gates can be constructed by combining simpler gates, such as using two-input AND gates to create a three-input AND gate.
assignment_mathematics.pptx
1. Digital electronics deals with data and codes represented in a digital format using two conditions: 0 and 1.
2. Digital circuits are made from logic gates, which perform operations on binary inputs to produce binary outputs according to truth tables.
3. Common logic gates include AND, OR, NOT, NAND, NOR, XOR, and XNOR gates, which can be combined to perform more complex operations.
M. FLORENCE DAYANA/unit - II logic gates and circuits.pdf
Logic Gates, Truth Table, AND Gate
Types of Digital Logic AND Gate, The 2-input and 3-input AND Gate, OR Gate, Types of Digital Logic AND Gate, The 2-input OR gate, The 3-input OR gate, NOT Gate, NAND Gate, The 2-input NAND Gate, The 3-input NAND Gate, NOR Gate, 2-input NOR gate
Just like other gates, XOR gate or Exclusive-OR gate
Cit 1101 lec 03
Logic gates are electronic circuits used in digital electronics and AI to perform logic operations. The basic logic gates are AND, OR, NOT. More complex gates include NAND, NOR, XOR, XNOR. Each gate has a specific truth table that defines its output based on its inputs. Logic circuits can be built by combining gates to physically implement Boolean expressions. For example, the expression AB+CD can be represented as an OR gate with AND gates feeding into it. Practice problems involve drawing circuit diagrams for Boolean expressions and writing expressions for given circuits.
Logic gates ,flip flop ,registers and
The document discusses different digital logic components including logic gates, flip flops, registers, and counters. It describes the basic types of logic gates such as AND, OR, NOT, NAND, and NOR gates. It also discusses different types of flip flops including T, S-R, J-K, and D flip flops which are used to store binary data. Registers are formed using groups of flip flops to store multi-bit data. Counters are also discussed as another component of digital logic systems.
DCF- Logic gates and circuit
This document provides information about logic gates and circuits. It defines a logic gate as having one or more inputs and one output. It also defines a truth table as showing all possible input-output combinations for a logic circuit. The document then discusses common logic gates like AND, OR, NOT, NAND, NOR, and XOR gates. It provides their truth tables and descriptions. It also gives examples of applications of XOR gates like parity checking and binary to gray code conversion. Finally, it discusses positive and negative logic, logic families like bipolar and MOS, and integrated circuits.
Logic Gate.pptx
This presentation introduces logic gates. It defines logic gates as electronic switches that take one or more inputs and produce a single output. The presentation describes the basic logic gates - NOT, AND, and OR gates - and their truth tables. It also explains NAND and NOR gates, which are combinations of basic gates. The key information provided is definitions of logic gates, descriptions of common basic logic gates and their operations, and an overview of truth tables and how they represent all possible input-output combinations for a given gate.
logic gates
This document provides information about logic gates. It discusses the history of logic gates and binary systems. It then defines common logic gates like OR, AND, NOT, NAND, and NOR gates. For each gate, it provides the symbolic representation, truth table, and examples of how the gate works. It also discusses applications of each gate type in contexts like industrial plants, microwave ovens, car safety systems, freezers, and home security systems. The document is authored by six group members and contains detailed information about the key concepts and components of logic gates.
DOC-20240203-WA0000.pptx
This document discusses different types of logic gates, including their definitions, truth tables, and circuit implementations. It covers basic gates like AND, OR, and NOT; universal gates like NAND and NOR; exclusive gates like XOR and XNOR. It also discusses how logic gates can be implemented using transistors, diodes, and CMOS circuits. Finally, it outlines some common applications of logic gates in areas like microcontrollers, calculators, and digital communications.
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M. FLORENCE DAYANA/unit - II logic gates and circuits.pdf
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Logic gates 07 11-2014
- 2. INTRODUCTION • Logic gates are the actual physical implementations of the logical operators. • These gates form the basic building blocks for all digital logic circuits. • Logic gates process signals which represent true or false. Logic States True False 1 0 High Low On Off +Vs -0V
- 3. TRUTH TABLE • A truth table is a means for describing how a logic circuit's output depends on the logic levels present at the circuit's inputs. Input A Output X Input B A B X Low Low ? Low High ? High low ? High High ?
- 4. LOGIC GATES BASIC LOGIC GATES AND OR NOT OTHER LOGIC GATES X-OR X-NOR UNIVERSAL LOGIC GATES NAND NOR
- 5. 5 v The NOT gate is the first of the three fundamental logic gates. The NOT Gate (inverter): Input A Output X A X 0 1 1 0 Truth Table: Is a chart that lists the input condition on the left and the gate’s output response on the right. The table shows that the NOT gate responds at the output with the inverse of the signal applied to the input. In order to see how it works, the gate has been connected to a switch and LED. Continue to see the system in action… Logic 1 OFF Logic 0 ON Logic 1 OFF Logic 0 ON Logic 1 OFF Logic 0 ON
- 6. The OR Gate: The OR gate is the second of three fundamental logic gates. Truth Table: The table shows that the OR gate responds with a high at the output if the signal applied to the input A or B is high. Input A Output XInput B OR 5 v 5 v 5 v In order to see how it works, the gate has been connected to 2 switches and LED. Continue to see the system in action… Logic 0 Logic 0 Logic 0 Logic 0 Logic 1 Logic 1 Logic 1 Logic 1 Logic 0 Logic 1 Logic 1 Logic 1 A B X 0 0 0 0 1 1 1 0 1 1 1 1
- 7. The AND Gate: The AND is the last of the remaining fundamental logic gates. Truth Table: The table shows that the AND gate responds with a high at the output if the signal applied to the input A and B are both high. 5 v 5 v 5 v Input A Output X Input B AND In order to see how it works, the gate has been connected to 2 switches and LED. Continue to see the system in action… Logic 0 Logic 0 Logic 0 Logic 0 Logic 0 Logic 1 Logic 1 Logic 0 Logic 0 Logic 1 Logic 1 Logic 1 A B X 0 0 0 0 1 0 1 0 0 1 1 1
- 8. Logic 1 Logic 0 Logic 0 Logic 0 Logic 0 Logic 1 Logic 1 Logic 0 Logic 1 NOR Gate: The NOR gate is equivalent to an OR gate with a NOT gate connected to its output. NOR comes from the words Not OR. Continue to see the standard symbol for NOR. Input A Output XInput B NOR 5 v 5 v 5 v Logic 0 Logic 1 Logic 0 In order to see how it works, the gate has been connected to 2 switches and LED. Continue to see the system in action… BAX Boolean Equation: here is the equation for the NOR gate. A B X 0 0 1 0 1 0 1 0 0 1 1 0 NOR Symbol Truth Table: The table shows that the NOR gate responds with a low at the output if the signal applied to the input A or B is high.
- 9. 5 v 5 v 5 v Logic 1 Logic 1 Logic 0 Logic 0 Logic 1 Logic 1 Logic 1 Logic 0 Logic 1 NAND Gate: The NAND gate is equivalent to an AND gate with a NOT gate connected to its output. NAND comes from the words Not AND. Continue to see the standard symbol for NAND. Input A Output XInput B NAND Logic 0 Logic 1 Logic 0 In order to see how it works, the gate has been connected to 2 switches and LED. Continue to see the system in action… BAX Boolean Equation: here is the equation for the NAND gate. A B X 0 0 1 0 1 1 1 0 1 1 1 0 NAND Symbol Truth Table: The table shows that the NAND gate responds with a low at the output if the signal applied to the input A and B is high.
- 10. X-OR Gate The X-OR gate is an exclusive OR gate. It will output a logic 1 if there is an exclusive logic 1 at input A or B. Exclusive means: Only one input can be high at one time. Input A Output XInput B X-OR BAX X-OR Boolean Equation: A B X 0 0 0 0 1 1 1 0 1 1 1 0 The X-NOR gate is an exclusive OR gate with an NOT gate at the output. It will output a logic 0 if there is an exclusive logic 1 at input A or B. A B X 0 0 1 0 1 0 1 0 0 1 1 1 Input A Output XInput B X- NOR X-OR Boolean Equation: BAX X-NOR Gate