The Kynix Components

CatalogFeaturesDescriptionAbsolute Maximum RatingsThermal ResistanceElectrical CharacteristicsSource-Drain Ratings and CharacteristicsCircuit Diagram & Characteristics CurvesPeak Diode Recovery dv/dt Test CircuitTO-220AB Package OutlineTO-220AB Part Marking InformationIRF520N Datasheet DownloadIRF520N FAQFeaturesAdvanced Process TechnologyDynamic dv/dt Rating175°C Operating TemperatureFast SwitchingFully Avalanche RatedLead-Free DescriptionFifth Generation HEXFETs from International Rectifier utilize advanced processing techniques to achieve extremely low on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that HEXFET Power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications. The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry. Absolute Maximum Ratings ParameterMax.UnitsID @ TC = 25°CContinuous Drain Current, VGS @ 10V9.7 AID @ TC = 100°CContinuous Drain Current, VGS @ 10V6.8IDMPulsed Drain Current ©38PD @TC = 25°CPower Dissipation48W Linear Derating Factor0.32W/°CVGSGate-to-Source Voltage± 20VEASSingle Pulse Avalanche Energy©91mJIARAvalanche Current©5.7AEARRepetitive Avalanche Energy©4.8mJdv/dtPeak Diode Recovery dv/dt ©5.0V/nsTJTSTGOperating Junction andStorage Temperature Range-55 to + 175 °C Soldering Temperature, for 10 seconds300 (1.6mm from case ) Mounting torque, 6-32 or M3 srew10 lbf•in (1.1N•m)  Thermal Resistance ParameterTyp.Max.UnitsRqJCJunction-to-Case–––3.1 °C/WRqCSCase-to-Sink, Flat, Greased Surface0.50–––RqJAJunction-to-Ambient–––62 Electrical Characteristics @ TJ = 25°C (unless otherwise specified) ParameterMin.Typ.Max.UnitsConditionsV(BR)DSSDrain-to-Source Breakdown Voltage100––––––VVGS = 0V, ID = 250µADV(BR)DSS/DTJBreakdown Voltage Temp. Coefficient–––0.11–––V/°CReference to 25°C, ID = 1mARDS(on)Static Drain-to-Source On-Resistance––––––0.20WVGS = 10V, ID = 5.7A  VGS(th)Gate Threshold Voltage2.0–––4.0VVDS = VGS, ID = 250µAgfsForward Transconductance 2.7––––––SVDS = 50V, ID = 5.7AIDSSDrain-to-Source Leakage Current––––––25µAVDS = 100V, VGS = 0V––––––250VDS = 80V, VGS = 0V, TJ = 150°CIGSSGate-to-Source Forward Leakage––––––100nAVGS = 20VGate-to-Source Reverse Leakage––––––-100VGS = -20VQgTotal Gate Charge––––––25 nCID = 5.7A VDS = 80VVGS = 10V, See Fig. 6 and 13  QgsGate-to-Source Charge––––––4.8QgdGate-to-Drain ("Miller") Charge––––––11td(on)Turn-On Delay Time–––4.5––– nsVDD = 50V ID = 5.7A RG = 22WRD = 8.6W, See Fig. 10  trRise Time–––23–––td(off)Turn-Off Delay Time–––32–––tfFall Time–––23–––LDInternal Drain Inductance–––4.5––– nHBetween lead, D6mm (0.25in.)from package Gand center of die contact SLSInternal Source Inductance–––7.5–––CissInput Capacitance–––330––– pFVGS = 0V VDS = 25Vƒ = 1.0MHz, See Fig. 5CossOutput Capacitance–––92–––CrssReverse Transfer Capacitance–––54––– Source-Drain Ratings and Characteristics ParameterMin.Typ.Max.UnitsConditionsISContinuous Source Current(Body Diode)––––––9.7 AMOSFET symbol Dshowing theintegral reverse Gp-n junction diode. SISMPulsed Source Current(Body Diode) ©––––––38VSDDiode Forward Voltage––––––1.3VTJ = 25°C, IS = 5.7A, VGS = 0V  trrReverse Recovery Time–––99150nsTJ = 25°C, IF = 5.7Adi/dt = 100A/µs  QrrReverse RecoveryCharge–––390580nCNotes:① Repetitive rating; pulse width limited by max. junction temperature. ( See fig. 11 )②VDD = 25V, starting TJ = 25°C, L = 4.7mH RG = 25W, IAS = 5.7A. (See Figure 12)③ISD £ 5.7A, di/dt £ 240A/µs, VDD £ V(BR)DSS, TJ £ 175°C Pulse width £ 300µs; duty cycle £ 2%. Circuit Diagram & Characteristics Curves         Peak Diode Recovery dv/dt Test Circuit  TO-220AB Package Outline TO-220AB Part Marking Information IRF520N Datasheet DownloadYou can download the datasheet from the link given below.IRF520N-Datasheet IRF520N FAQWhat is a Hexfet power MOSFET?The HEXFET®is fundamentally different: it is a voltage-controlled power MOSFET device. A voltage must be applied between the gate and source terminals to produce a flow of current in the drain. The gate is isolated electrically from the source by a layer of silicon dioxide. What is the difference between MOSFET and power MOSFET?Power MOSFET is a type of MOSFET which is specially meant to handle high levels of power. These exhibit high switching speed and can work much better in comparison with other normal MOSFETs in the case of low voltage levels. However its operating principle is similar to that of any other general MOSFET. What does a power Mosfet do?Power MOSFETs (Metal-Oxide Semiconductor Field Effect Transistors) are three-terminal silicon devices that function by applying a signal to the gate that controls current conduction between source and drain. What are the important power Mosfet characteristics?Because power MOSFETs are primarily used as power switches, they are expected to have low conduction and switching losses. For power management applications, conduction losses, ruggedness and avalanche capability are important features. How do you test a power Mosfet?1) Hold the MosFet by the case or the tab but don't touch the metal parts of the test probes with any of the other MosFet's terminals until needed. 2) First, touch the meter positive lead onto the MosFet's 'Gate'. 3) Now move the positive probe to the 'Drain'. You should get a 'low' reading. 

Product OverviewDS2413 is a dual channel programmable I/O 1-Wire  chip. It controls dual programmable high voltage, a high current I/O pins  from a single micro port pin. The PIO  outputs are configured as open-drain  and provide up to 20mA continuous sink capability  and offset operating voltage of up to 28V. It has a dedicated device-level command protocol. The IO and PIO pins are capable of withstanding the continuous application of up to 28V. Communication and operation of the DS2413 are performed with the single contact Maxim/Dallas 1-Wire serial interface. This blog will introduce DS2413 systematically from its features, pinout to its specifications, applications, also including DS2413 datasheet and so much more. CatalogProduct OverviewRelated Video IntroductionDS2413 FeaturesDS2413 PinoutDS2413 ApplicationsDS2413 CAD ModelsDS2413 Circuit DiagramDS2413 Block DiagramDS2413 Hardware ConfigurationDS2413 SpecificationDS2413 ManufacturerDS2413 DatasheetUsing Warnings Related Video Introduction Video: Usare il port expander ds2413 con Arduino per aggiungere due uscite supplementari - Video 575 DS2413 FeaturesControls Dual Programmable High Voltage, High Current I/O Port Pins from a Single Micro Port Pino Open-Drain Programmable I/O Pins Support  20mA max Continuous Current Sinko 28V (max) PIO  Pin Operating Voltageo On-Resistance of PIO  Pulldown Transistor 20Ω max; OFF Resistance 1MΩ mino Parasitic Power Supply Through 1-WireMinimalist 1-Wire Interface Lowers Cost and Interface Complexityo Communicates to Host with a Single Digital Signal at 14.9kb or 100kbpso Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noiseo 1-Wire IO Pin Supports 28V Absolute  Maximum DC Level for Fault Conditionso Unique 64-bit ROM Serial Number Factory Lasered Into Each Deviceo High ESD Immunity of 1-Wire IO Pin: 8kV HBM Typicalo TSOC and TDFN Packages AvailableWide Voltage and Temperature Operating Ranges Enables Robust System Performanceo 2.8V to 5.25Vo 0°C to +70°C DS2413 PinoutThe following figure is the diagram of DS2413 pinout. DS2413 Pinout DS2413 ApplicationsLED ControlAccessory Identification and ControlGeneral Purpose Input/OutputKey-Pick SystemsIndustrial ControllersSystem Monitoring DS2413 CAD ModelsThe followings are DS2413 Symbol, Footprint, and 3D Model. DS2413 Symbol DS2413 Footprint DS2413 3D Model DS2413 Circuit DiagramThe following is the typical application circuit diagram of DS2413. DS2413 Circuit Diagram DS2413 Block DiagramThe following figure shows the block diagram of DS2413. DS2413 Block Diagram DS2413 Hardware Configuration  The following diagram shows the hardware configuration of DS2413. DS2413 Hardware Configuration DS2413 SpecificationManufacturer:Maxim Integrated ProductsOperating Temperature-Max:70 °CSupply Voltage-Max:5.25 VSupply Voltage-Min:2.8 VSupply Voltage-Nom:3.3 VPeak Reflow Temperature (Cel):240Seated Height-Max:1.5 mmTerminal Position:DUAL DS2413 ManufacturerMaxim Integrated develops innovative analog and mixed-signal products and technologies to make systems smaller and smarter, with enhanced security and increased energy efficiency. We are empowering design innovation for our automotive, industrial, healthcare, mobile consumer, and cloud data center customers to deliver industry-leading solutions that help change the world. DS2413 DatasheetYou can download DS2413 datasheet from the link given below:DS2413 Datasheet Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit.  

CatalogTPS74801 DescriptionTPS74801 Related Video InstructionTPS74801 CAD ModelsTPS74801 Pin ConfigurationTPS74801 Functional Block DiagramTPS74801 FeaturesTPS74801 ApplicationsTPS74801 DatasheetTPS74801 SpecificationsTPS74801 ManufacturerUsing WarningTPS74801 FAQTPS74801 DescriptionThe TPS748 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and wellsuited for powering many different types of processors and ASICs. The enable input and power good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs , and other applications with special start-up requirements. A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process.The device is stable with any type of capacitor greater than or equal to 2.2 μF, and is fully specified for TJ = –40°C to 125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5 × 5 QFN-20 package for compatibility with the TPS744. TPS74801 Related Video InstructionVideo:LDO basics: Dropout voltageTPS74081 Video Description:This video will go over what an LDO is and discuss the importance of dropout voltage in an LDO, as well as other variables for LDO accuracy. An application will demonstrate the importance of dropout voltage when designing as dropout voltage can affect the desired output of an LDO. The designer must keep the input voltage and dropout voltage in mind when using an LDO. Furthermore, PMOS and NMOS architectures used in LDO's will be covered as this has the most impact to the dropout voltage. TPS74801 CAD Models Figure: PCB Symbol  Figure: Footprint  Figure: 3D Model TPS74801 Pin Configuration Figure: Pin Configuration TPS74801 Functional Block Diagram Figure: Functional Block Diagram TPS74801 FeaturesVOUT Range: 0.8 V to 3.6 VUltralow VIN Range: 0.8 V to 5.5 VVBIAS Range 2.7 V to 5.5 VLow Dropout: 60 mV Typical at 1.5 A, VBIAS = 5 VPower Good (PG) Output Allows SupplyMonitoring or Provides a Sequencing Signal forOther Supplies2% Accuracy Over Line, Load, and TemperatureProgrammable Soft-Start Provides Linear VoltageStartupVBIAS Permits Low VIN Operation With GoodTransient ResponseStable With Any Output Capacitor≥ 2.2 μF Available in a Small, 3-mm × 3-mm × 1-mm VSON-10 and 5 × 5 QFN-20 Packages TPS74801 ApplicationsFPGA ApplicationsDSP Core and I/O VoltagesPost-Regulation ApplicationsApplications With Special Start-up Time or Sequencing RequirementsHot-Swap and Inrush Controls TPS74801 DatasheetYou can download the datasheet from the link given below.TPS74801-Datasheet TPS74801 SpecificationsProduct Category:LDO Voltage RegulatorsMounting Style:SMD/SMTPackage / Case:VSON-10Output Voltage:800 mV to 3.6 VOutput Current:1.5 ANumber of Outputs:1 OutputPolarity:PositiveOutput Type:AdjustableMinimum Operating Temperature:- 40 ℃Maximum Operating Temperature:+ 125 ℃Dropout Voltage:60 mVSeries:TPS74801Packaging:ReelPackaging:Cut TapePackaging:MouseReelManufacturer:Texas InstrumentsBrand:Texas InstrumentsDevelopment Kit:TPS74801EVM-177Dropout Voltage - Max:165 mV at 1.5 AHeight:0.9 mmIb - Input Bias Current:1 mAInput Voltage, Max:5.5 VInput Voltage, Min:800 mVLength:3 mmLine Regulation:0.03 % / VLoad Regulation:0.09 %/AMoisture Sensitive:YesOperating Supply Current:1 mAOperating Temperature Range:-4Pd - Power Dissipation:1.92 WProduct Type:LDO Voltage RegulatorsReference Voltage:0.804 VFactory Pack Quantity:3000Subcategory:PMIC - Power Management ICsVoltage Regulation Accuracy:0.005Width:3 mmUnit Weight:0.000917 oz TPS74801 ManufacturerTexas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume.The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue.TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers and multi-core processors. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. TPS74801 FAQWhat are LDO voltage regulators?An LDO regulator is a linear regulator that can operate at a very low potential difference between the input and output voltage. A linear regulator is a type of power supply IC that can output a steady voltage from an input voltage and is used in a variety of electronic devices. How does an LDO regulator work?The working principle of LDO regulator is just like that of an ordinary linear voltage regulator. The essential components of an LDO voltage regulator are a reference voltage source, error amplifier and series pass element (BJT or MOSFET). ... This increase in output voltage will increase the error voltage (VERR). Where is LDO regulator used?Outline: LDO (low-drop-out) regulators, which are used as PoLs for mobile and IoT devices, are optimal power supply ICs for analog circuits that require high voltage accuracy and low noise. This document describes key features, the operation of the built-in protective function, and the efficiency. 

Product OverviewThe LM78XX series of three-terminal positive regulators is available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down, and safe operating area protection. If adequate heat sinking is provided, they can deliver over 1 A output current. Although designed primarily as fixedvoltage regulators, these devices can be used with external components for adjustable voltages and currents. This blog will introduce LM7805AC systematically from its features, pinout to its specifications, applications, also including LM7805AC datasheet and so much more. CatalogProduct OverviewRelated Video IntroductionLM7805AC FeaturesLM7805AC PinoutLM7805AC Block DiagramLM7805AC CAD ModelsLM7805AC Circuit DiagramLM7805AC PackageLM7805AC SpecificationLM7805AC ManufacturerLM7805AC DatasheetUsing WarningsLM7805AC FAQ Related Video Introduction Video: Linear Voltage Regulators  (LM7805) | AO #17 LM7805AC Video Description: Curious about how it works? In this AddOhms Tutorial we look at what a Linear Voltage Regulators  is and how to use them in your circuits. LM7805AC FeaturesOutput Current up to 1 AOutput Voltages: 5, 6, 8, 9, 10, 12, 15, 18, 24 VThermal Overload ProtectionShort-Circuit ProtectionOutput Transistor Safe Operating Area Protection LM7805AC PinoutThe following figure is the diagram of LM7805AC pinout. LM7805AC Pinout LM7805AC Block DiagramThe following figure shows the block diagram of LM7805AC. LM7805AC Block Diagram LM7805AC CAD ModelsThe followings are LM7805AC Symbol, Footprint, and 3D Model . LM7805AC Symbol LM7805AC Footprint LM7805AC 3D Model LM7805AC Circuit DiagramThe following is the circuit diagram of LM7805AC. DC Parameters Load Regulation Ripple Rejection High-Current Voltage Regulator LM7805AC PackageThe following diagram shows thLM7805ACe LM7805AC package. LM7805AC Package LM7805AC SpecificationTYPEDESCRIPTIONCategoryPMIC - Voltage Regulators - LinearMfronsemiPackageTubePart StatusObsoleteOutput ConfigurationPositiveOutput TypeFixedNumber of Regulators1Voltage - Input (Max)35VVoltage - Output (Min/Fixed)5VVoltage Dropout (Max)2V @ 1A (Typ)Current - Output1ACurrent - Quiescent (Iq)8 mAPSRR73dB (120Hz)Protection FeaturesOver Temperature, Short CircuitOperating Temperature0°C ~ 125°CMounting TypeThrough HolePackage / CaseTO-220-3 LM7805AC ManufacturerON Semiconductor is a Fortune 500 company driving energy efficient innovations, empowering customers to reduce global energy use. The company is a leading supplier of semiconductor-based solutions, offering a comprehensive portfolio of energy efficient power and signal management, logic, standard and custom devices. The company’s products help engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, medical and military/aerospace applications. LM7805AC DatasheetYou can download LM7805AC datasheet from the link given below:LM7805AC Datasheet Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit. LM7805AC FAQWhat is a positive voltage regulator?A positive adjustable voltage regulator produces a regulated positive voltage that can be adjusted. Most regulators are fixed (not adjustable). A negative adjustable voltage regulator produces a regulated negative voltage that can be adjusted. Again, most are fixed. LDO means low drop out. What is negative voltage regulator?Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs. What are the different types of voltage regulators?There are two main types of voltage regulators: linear and switching. Both types regulate a system's voltage, but linear regulators operate with low efficiency and switching regulators operate with high efficiency.

Product OverviewThe ADRF5020 is a general-purpose, single-pole, double-throw (SPDT) switch manufactured using a silicon process. It comes in a 3 mm × 3 mm, 20-terminal land grid array(LGA) package and provides high isolation and low insertion loss from 100 MHz to 30 GHz. This broadband switch requires dual supply voltages, +3.3 V and −2.5 V, and provides CMOS/LVTTL logic-compatible control. This blog will introduce ADRF5020 systematically from its features, pinout to its specifications, applications, also including ADRF5020 datasheet and so much more. CatalogProduct OverviewADRF5020 FeaturesADRF5020 PinoutADRF5020 ApplicationsADRF5020 Evaluation Board SchematicADRF5020 Block DiagramADRF5020 Interface SchematicsADRF5020 PackageADRF5020 SpecificationADRF5020 ManufacturerADRF5020 DatasheetUsing WarningsADRF5020 FAQ ADRF5020 FeaturesUltrawideband frequency range: 100 MHz to 30 GHzNonreflective 50 Ω designLow insertion loss: 2.0 dB to 30 GHzHigh isolation: 60 dB to 30 GHzHigh input linearity - 1 dB power compression(P1dB): 28 dBm typical- Third-order intercept (IP3): 52 dBm typicalHigh power handling- 24 dBm through path- 24 dBm terminated pathESD sensitivity: Class 1, 1 kV human body model (HBM)20-terminal, 3 mm × 3 mm, land grid array packageNo low frequency spuriousRadio frequency (RF) settling time (to 0.1 dB of final RFoutput): 15 ns ADRF5020 PinoutThe following figure is the diagram of ADRF5020 pinout. ADRF5020 Pinout ADRF5020 ApplicationsTest instrumentationMicrowave radios and very small aperture terminals (VSATs)Military radios, radars, electronic counter measures (ECMs)Broadband telecommunications systems ADRF5020 Evaluation Board SchematicThe following is the evaluation board schematic of ADRF5020. ADRF5020 Evaluation Board Schematic ADRF5020 Block DiagramThe following figure shows the block diagram of ADRF5020. ADRF5020 Block Diagram ADRF5020 Interface SchematicsThe following figures show the interface schematics of ADRF5020. RFC, RF1, and RF2 Pins Interface Schematic Digital Pins(CTRL and EN) Interface Schematic ADRF5020 PackageThe following diagram shows the ADRF5020 package. ADRF5020 Package ADRF5020 SpecificationManufacturer:Analog Devices IncCharacteristic Impedance:50 ΩInput Power-Max (CW):21 dBmOperating Frequency-Max:30000 MHzOperating Frequency-Min:100 MHzOperating Temperature-Max:85 °COperating Temperature-Min: -40 °CPower Supplies: -2.5,3.3/5 VSupply Current-Max:0.6 mA ADRF5020 ManufacturerAnalog Devices (NASDAQ: ADI) is a world leader in the design, manufacture, and marketing of a broad portfolio of high performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in virtually all types of electronic equipment. Since our inception in 1965, we have focused on solving the engineering challenges associated with signal processing in electronic equipment. Used by over 100,000 customers worldwide, our signal processing products play a fundamental role in converting, conditioning, and processing real-world phenomena such as temperature, pressure, sound, light, speed, and motion into electrical signals to be used in a wide array of electronic devices. ADRF5020 DatasheetYou can download ADRF5020 datasheet from the link given below:ADRF5020 Datasheet Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit. ADRF5020 FAQWhat is an SPDT switch?A Single Pole Double Throw (SPDT) switch is a switch that only has a single input and can connect to and switch between the 2 outputs. This means it has one input terminal and two output terminals. A Single Pole Double Throw switch can serve a variety of functions in a circuit. What is the difference between SPDT and DPDT?The difference between SPDT and DPDT is that SPDT has a single input that connects to two outputs while the DPDT has two SPDT integrated together which enables it to control two circuits together at the same time. What are the applications of SPDT switches?The application of SPDT switch is mainly involved in a three-way circuit to turn ON/OFF a light from two locations like from the top & bottom of a stairway. In the circuit below, when the switch A is closed, then the current flows through the terminals, but only light A will glow and light B will OFF. How many connections are needed for a SPDT switch?SPDT switch is a five terminal switch device — two input terminals, and three output terminals (two terminals connect to the load, and one terminal connect to the common terminal). When would you use a DPDT switch?A DPST switch is often used to switch mains electricity because it can isolate both the live and neutral connections. A pair of on-on switches which operate together (shown by the dotted line in the circuit symbol). A DPDT switch can be wired up as a reversing switch for a motor as shown in the diagram.

Product OverviewThe PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register. This blog will introduce PCA9548 systematically from its features, pinout to its specifications, applications, also including PCA9548 datasheet and so much more. CatalogProduct OverviewRelated Video IntroductionPCA9548 FeaturesPCA9548 PinoutPCA9548 Block DiagramPCA9548 Application Circuit DiagramPCA9548 CAD ModelsPCA9548 PackagePCA9548 SpecificationPCA9548 ManufacturerPCA9548 DatasheetUsing WarningsPCA9548 FAQ Related Video Introduction Video: Solving I2C Address Conflicts - TCA9548A I2C Multiplexer  PCA9548 Video Description: I’ve covered the I2C bus in several previous videos, and today we’ll take another look at it. This time I’ll show you how to resolve a common problem - what to do if you need to use two identical sensors or displays that have the same, unalterable, I2C address? The answer is pretty simple, you implement an additional I2C bus.  And you can do this a couple of different ways. The first way is through software. By using an alternative to the  Arduino Wire Library you can implement more than one I2C bus on your Arduino, and you aren’t restricted to using pins A4 and A5. But software solutions have their drawbacks, and my preferred way of doing this is using hardware. The Adafruit TCA9548A MI2C Multiplexer Module is perfect for the job. You can use it to add up to 8 additional I2C buses to your Arduino, and you can use up to eight modules for a whopping 64 extra I2C buses! I’ll restrict myself to one module today. And I’ll use it to drive two identical I2C OLED displays that have a fixed I2C address,  I'll build a temperature and humidity meter and send temperature to one display, humidity to the other. PCA9548 Features1-of-8 bidirectional translating switchesI2C-bus interface logic; compatible with SMBus standardsActive LOW reset inputThree address pins allowing up to eight devices on the I2C-busChannel selection via I2C-bus, in any combinationPower-up with all switch channels deselectedLow Ron switchesAllows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V busesNo glitch on power-upSupports hot insertionLow standby currentOperating power supply voltage range of 2.3 V to 5.5 V6 V tolerant inputs0 Hz to 400 kHz clock frequencyESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM perJESD22-C101Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mAThree packages offered: SO24, TSSOP24, and HVQFN24 PCA9548 PinoutThe following figure is the diagram of PCA9548 pinout. PCA9548 Pinout PCA9548 Block DiagramThe following figure shows the block diagram of PCA9548. PCA9548 Block Diagram PCA9548 Application Circuit DiagramThe following is the typical application circuit diagram of PCA9548. PCA9548 Circuit Diagram PCA9548 CAD ModelsThe following are PCA9548 Symbol, Footprint, and 3D Model. PCA9548 Symbol PCA9548 Footprint PCA9548 3D Model PCA9548 PackageThe following diagram shows the PCA9548 package. PCA9548 Package PCA9548 SpecificationManufacturer:NXP SemiconductorsLength:7.8 mmInterface IC Type:INTERFACE CIRCUITSeated Height-Max:1.1 mmTerminal Pitch:0.65 mmTerminal Position:DUALWidth:4.4 mm PCA9548 ManufacturerNXP Semiconductors N.V. enables secure connections for a smarter world, advancing solutions that make lives easier, better and safer. As the world leader in secure connectivity solutions for embedded applications, NXP is driving innovation in the automotive, industrial & IoT, mobile and communication infrastructure markets. PCA9548 DatasheetYou can download PCA9548 datasheet from the link given below:PCA9548 Datasheet Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit. PCA9548 FAQWhat is I2C switch?I2C is a two-wire communication protocol known for its simplicity. The easiest solution is to use a four-channel I2C switch. The I2C switch will have its own unique I2C address and will require you to write to its internal register in order to set which channels will be on at a time. What does a hard reset do?A 'hard' reset or 'hardware reset' wipes the phone's software completely, and clears everything deeply, without leaving any chance of recovery of data/settings. It is done through the phone's boot-loader screen, using special key combinations particular to every manufacturer. What is the difference between hard reset and soft reset?My understanding of these terms: soft reset happens when you power down the phone and then restarting. Hard reset is a factory reset. It us when you erase all of the information you have put in it and returning it (hopefully ) to the state it was when new.