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Lecture No. 14. Combinational Functional Devices. Digital Logic &Design Vishal Jethva Lecture 14 svbitec.wordpress.com. Recap. Odd-Prime Number Detector Circuit Using Quine-McCluskey Method Combinational Logic Implemented in SOP and POS form Design and Implementation Steps

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lecture no 14
Lecture No. 14

Combinational Functional Devices

svbitec.wordpress.com

slide2
Digital Logic &Design

Vishal Jethva

Lecture 14

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svbitec.wordpress.com

recap
Recap
  • Odd-Prime Number Detector Circuit
    • Using Quine-McCluskey Method
  • Combinational Logic
  • Implemented in SOP and POS form
  • Design and Implementation Steps
  • Timing Diagram
  • Active High/Low inputs/outputs

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odd parity function
Odd-Parity Function

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sop expression simplification
SOP Expression SImplification

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simplifying expression
Simplifying Expression

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odd parity generator circuit
Odd-Parity Generator Circuit

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operation of odd parity circuit
Operation of Odd-Parity circuit

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xor xnor gates
XOR & XNOR Gates
  • XOR function
  • XNOR function

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xor gate
XOR Gate

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xnor gate
XNOR Gate

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combinational functional devices
Combinational Functional Devices
  • Comparators
  • BCD to 7-Segment
  • Parity Generator Circuit

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half full adders
Half & Full Adders
  • Half Adder
  • Full Adder

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half full adders1
Half & Full Adders

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half adder
Half-Adder
  • Function Table
  • Expression
  • Logic Circuit

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half adder function table
Half-Adder Function Table

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half adder circuit
Half-Adder Circuit

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full adder
Full-Adder
  • Function Table
  • Expression
  • Logic Circuit

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full adder function table
Full-Adder Function Table

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sum expression
Sum Expression

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carry out expression
Carry Out Expression

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full adder circuit
Full-Adder Circuit

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full adder1
Full-Adder
  • Full-Adder = Half-Adder + Half-Adder

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parallel binary adder
Parallel Binary Adder
  • Multiple Single bit Full-Adder connected in Parallel

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4 bit parallel adder
4-bit Parallel Adder

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carry propagation
Carry Propagation
  • Carry Ripple
  • Look-Ahead Carry Circuits

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look ahead carry circuit
Look-Ahead Carry Circuit

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sum carry expressions
Sum & Carry Expressions

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carry expressions
Carry Expressions

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look ahead carry generator
Look-Ahead Carry Generator

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msi adders
MSI-Adders
  • 74LS83A
  • 74LS283
  • 16-pin ICs
  • 4-bit A input
  • 4-bit B input
  • 4-bit Sum output
  • 1-bit Carry in
  • 1-bit Carry Out

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12 bit parallel adder
12-bit Parallel Adder

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