Digital Electronics

Real World Design For more complex combinational problems with a larger number of inputs, one can resort to the use of aminimization algorithm, such as Quine-McCluskey.

Gate Implementation Last time we discussed the CMOS inverter:

Switching Device Characteristics

Simplifying Binary Representation Asthemagnitudeofnumbersincrease,binaryrepresentationbecomescumbersome.Base2isanaturalsystemforbinarymachineslikecomputersbutistediousforhumans. Inordertoreadbinarynumberseasilyweusebase8(octalnumbersystem)andbase16(hexadecimal). Sincebinary,octalandhexadecimalnumbershavemultiple-of-2bases,conversionfromonenumbersystemtotheotherissimple.Inconversiontooctal,justgroupbinarydigitsinto3sstartingfromthebinarypointtotheleftandtotheright.Thenconverteachgroupintotheco...

Digital Circuits • Digitalcircuitscanbedescribedintermsofcombinationallogicorsequentiallogicorboth.Inacombinationallogic,theoutputofadigitalcircuitatanygiveninstantoftimeiscompletelydeterminedbytheinputspresentatthatparticulartime.Examplesofcombinationalcircuitsincludelogicgates,NANDgate,NOTgate,NORgateandsoforth. • Inthissection,wewillconsidercombinationalcircuitsonly

Boolean Algebra Thetwo-valuedsystemofalgebrawasinventedbyGeorgeBoolein1854.Alsocalledswitchingalgebra

YOU WANNA LEARN Introduction 1.2 TheBinaryNumberSystem 1.3 BaseConversions 1.4 BinaryAdditionandSubtraction 1.5 Sign-MagnitudeRepresentation 1.6 BinaryCodes 9 Section 2 − Combinational Logic 2.1 TruthTables 2.2 CombinationalGates 2.3 GateImplementation 2.4 PhysicalRepresentationofBinaryStates 2.5 LogicFamilies 2.6 BooleanAlgebra

Since the invention of microcontrollers, the production of “smart” electronic devices has since rose drastically. These microcontrollers are put inside a system and act as a brain to control a singular function in a device. This is accomplished by using its central processor to interpret data received from its I/O peripherals. The microcontroller's temporary data is saved in its data memory, where the processor accesses it and decodes and applies the incoming data using instructions st...

This project report about the design, building and implementation of a data logger using a PIC16F690 microcontroller. With the PIC16F690 microcontroller acting as the brain of the system, the data logger was designed and tested. The purpose of this data logger in summary was to store, retrieve temperature and humidity values in the EEPROM of the microcontroller and display on the 20X4 LCD Display. Other functionalities included monitoring of a battery of the system using Buzzer to warm th...

This Report consists of two projects, project 1 which deals with conversion from binary to BCD and vice versa using Shift add-3 algorithm. Project 2 deals with designing a counter that is a microcontroller based that will use two SSDs for display and implement switch debouncing. This counter will count up and down between 00 and 99. The program for both these projects was written an assembly language in MPLAB environment. The code was then inserted into a PIC16F690 microcontroller for imple...