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Integrated Circuits (ICs)

74HC164 Based Display Drive Circuit Design

I. DescriptionNowadays, LCD,  VFD,  LED  and other display devices have brought infinite charm to intelligent household appliances. At present, major chip manufacturers have introduced various dedicated display driver chips,  they have become the mainstream of display drive technology. However, the display requirements of white goods are relatively low. Based on cost considerations, this article introduces a 74HC164-based display drive circuit design scheme, which not only achieves the same display effect, reduces costs, but also improves system reliability.74HC164CatalogI. DescriptionII.74HC164 Advantage AnalysisIII.74HC164 Chip IntroductionIV.74HC164 Display Drive CircuitV. 74HC164 Display Circuit DriverVI. Procedure DescriptionFAQOrdering & Quantity II.74HC164 Advantage Analysis Under normal circumstances, the display circuit of smart home appliances is controlled by a single-chip microcomputer, such as the displayed content and the display mode. The single-chip microcomputer plays an important role in the control circuit of smart home appliances. Its selection not only determines the realization of the control circuit but also has a great influence on the cost of the controller. We use the serial input and parallel output functions of the 74HC164 chip to carry out serial communication with the microcontroller, and the parallel output port directly drives the display device. This solution can expand the I/O port of the single-chip microcomputer and reduce the resource requirements of the single-chip microcomputer. Moreover, the chip installation method is very flexible, which can reduce the number of connecting wires of the display panel, improve the reliability of the system, and has a greater cost advantage. , It is widely used in buttons and display drive circuits.   III.74HC164 Chip Introduction 74HC164 is a high-speed silicon gate CMOS device, which is pin compatible with low-power Schottky TTL (LSTTL) devices. 74HC164 is an 8-bit edge-triggered shift register, serial input data, and then parallel output. Data is serially input through one of the two input terminals (DSA or DSB); either input terminal can be used as a high-level enable terminal to control the data input of the other input terminal. Either connect the two input terminals together, or connect the unused input terminals to a high level, so they must not be left floating. The pin distribution of 74HC164 is shown as in Fig. 1. Compatible with TTL level, the highest operating clock frequency is 20MHz, the fan-out factor is 10, the power dissipation is 500mW, and the output current Io (each end) is 25mA, which can directly drive LED display devices.Figure 1 74hc164 pinoutAccording to the logic function of the chip, the waveform diagram of the input and output signals can be obtained, as shown in Figure 2. The output signals Q0~Q7 are delayed by one clock cycle respectively, and can form 8 scan signals.Figure 2 74HC164 signal waveform IV.74HC164 Display Drive Circuit The circuit shown in Figure 3 is a hybrid display circuit composed of touch switches, nixie tubes and LEDs. Among them, 16 buttons, 2 nixie tubes, and 8 LEDs are a typical 538 scanning circuit. The 8 pins of the 74HC164 chip Q0~Q7 output column scan signals, and the microcontroller directly provides 5 rows of scan signals. The single-chip microcomputer provides clock input and data input signals for 74HC164 to control the display content. The circuit requires 8 pins of the single-chip microcomputer in total, which saves 6 pin resources compared with the conventional scanning circuit and has certain cost advantages. Diode D2-D23 plays an isolation role to prevent the mutual interference of 74HC164 chip pin potential. For example: when a channel is selected, the 74HC164 output pins Q0~Q6 are high level, and Q7 is low level. At this time, if SW1 and SW2 are pressed at the same time, pin Q7 and pin Q6 are in a short-circuit state, which will damage the chip. Clock input pins and data input pins need to be connected to ceramic capacitors to resist high-frequency interference, but the capacitance should not be too large to avoid excessive distortion of the input waveform and make the circuit unable to work normally. It is recommended to use 100-1000pF.Figure 3 shows a practical example of the circuit V. 74HC164 Display Circuit Driver Take the 78K0S series 8-bit MCU UPD78F9116 from NEC Corporation of Japan as an example, the driver needs to detect 16, the number of keys to be detected, the display drive 2 8-segment digital tubes, and the number of LEDs 16 (8 expanded on the basis of the reference circuit). The single-chip microcomputer directly provides 6 line scan signals, and at the same time provides clock input and data input signals for 74HC164 to control the display content. The IO port is defined as follows:Each subroutine scans 2 groups of 31 keys, and scans all keys within 8 times. Display scan channel number 0~3, display time of each channel (1 digital tube or 1 group of LED) occupies 1/4, and the refresh cycle depends on the frequency of subroutine execution. The program must be executed cyclically. It can be called as a regular subroutine or directly embedded in the main program file. It is more appropriate to execute it every 1~3mS. The confirmation time for a button to be lifted or pressed (24mS~32mS)--(72ms~96mS), the response speed can meet people's operating habits, the display refresh frequency is set to 250Hz--83Hz, if it is lower than 40~50Hz Flashing. The program flow chart is shown in Figure 4.Figure 4 Program flow chart VI. Procedure Description (1) External name and global variable declarationFAQHow does the 74HC164 transmit data in the microcontroller circuit?One pin of the single-chip microcomputer is like a faucet, and the data is sent one by one, that is, like the water from the faucet, dripping drop by drop. The 74H164 is like a small bowl receiving water. It is just full after receiving 8 drops of water. At this time, it is sent to the digital tube.The single-chip microcomputer must send an 8-bit (or more) data, if it is sent at the same time, it is a parallel transmission, if it is a bit by bit, it is a serial transmission. The data of the single-chip microcomputer is sent to the 74HC164 bit by bit, which is serial, and the 74HC164 sends the data to the digital tube at once, which is parallel. So 74HC164 plays a role from serial transmissionto paralleltransmission.What is the difference between 74HC164D and 74HC164N MCU?The D in 74HC164D represents a chip package. The N in 74HC164N means dual in-line plastic packaging.What is the difference between 74HC164 and 74LS164, can they be used together?74ls164 is a TTL circuit, the power supply voltage is 5V, the high-level output current Ioh is -0.4MA, and the low-level output current is 8MA.74HC164 is a CMOS circuit, the power supply voltage is 2V ~ 6V, the output drive current can reach plus or minus 20MA. If the power supply voltage you use is 5V and the output drive current is suitable for 74ls164, they can be used together.What devices can 74hc164 be replaced with?74HC164 is a CMOS device with a power supply voltage of 2V-6V. It can be directly replaced by 74HCT164, 40H164. If the power supply voltage is 5V and the output drive current is small, it can also be replaced by 74164, 74LS164, 74F164, 74ALS164.Which of 74LS164 and 74HC164 has higher driving capability?74LS164 is a TTL device with a high-level driving capability of about 0.4mA and a low-level driving capability of about 8mA. 74HC164 is a CMOS device, with high-level and low-level drive capability up to 20mA. The above data comes from DATASHEET. But generally speaking, the high-level output capability of many CMOS devices is weak, smaller than TTL, and the low-level drive capability is stronger.Can 74hc164n be used to drive the digital tube?Of course, you can use the 164 chip to drive the nixie tube, which is mostly used in situations where the IO port resources are tight and the display data refresh of the nixie tube is slow. When designing the circuit, multiple 164 chips are used in cascade, no matter how many digital tubes are driven, only 2 IO ports of the single-chip microcomputer are occupied. It can be said that it is the most IO port-saving driving method, and it is still driven statically, without strobe and brightness Low phenomenon.The disadvantage is that multiple 164s are used in cascade connection, which will cause the single-chip microcomputer to send a large amount of display data (1 byte per nixie tube) at one time when refreshing the display data. During this process, the nixie tube will be all on, although the data is sent The process duration is very short, but it still affects the display effect. It is recommended to turn off the digital tube when refreshing the data.
kynix On 2022-03-22   3978
Integrated Circuits (ICs)

Heart Rate Monitor Front End: MAX30003 vs AD8232

 CatalogDescriptionPin ConfigurationFunctional Block DiagramFeaturesApplicationsDatasheetSpecificationManufacturerUsing WarningFAQDescription: MAX30003 vs AD8232The MAX30003 is a complete, biopotential, analog front end solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30003 is a single biopotential channel providing ECG  waveforms and heart rate detection. The AD8232 is an integrated signal conditioning block for ECG and other biopotential measurement applications. It is designed to extract, amplify, and filter small biopotential signals in the presence of noisy conditions, such as those created by motion or remote electrode placement. This design allows for an ultralow power analog-to-digital converter (ADC) or an embedded microcontroller to acquire the output signal easily.Video about MAX30003 Video about AD8232 Pin Configuration Figure: MAX30003 Pin Configuration  Figure: AD8232 Pin Configuration Functional Block Diagram Figure: MAX30003 Block Diagram  Figure: AD8232 Block Diagram FeaturesMAX30003AD8232● Clinical-Grade ECG AFE with High-Resolution Data Converter•15.5 Bits Effective Resolution with 5µVP-P Noise Fully integrated single-lead ECG front end● Better Dry Starts Due to Much Improved Real World CMRR and High Input Impedance•Fully Differential Input Structure with CMRR > 100dB Low supply current: 170 µA (typical)●Offers Better Common-Mode to Differential Mode Conversion Due to High Input Impedance•High Input Impedance > 500MΩfor Extremely Low Common-to-Differential Mode Conversion Common-mode rejection ratio: 80 dB (dc to 60 Hz)●Minimum Signal Attenuation at the Input During Dry Start Due to High Electrode Impedance Two or three electrode configurations● High DC Offset Range of±650mV (1.8V, typ) Allows to Be Used with Wide Variety of Electrodes High signal gain (G = 100) with dc blocking capabilities● High AC Dynamic Range of 65mVP-P Will Help the AFE Not Saturate in the Presence of Motion/Direct Electrode Hits 2-pole adjustable high-pass filter● Longer Battery Life Compared to Competing Solutions• 85µW at 1.1V Supply Voltage Accepts up to ±300 mV of half cell potential● Leads-On Interrupt Feature Allows to Keep µC in Deep Sleep Mode with RTC Off Until Valid Lead Condition is Detected• Lead-On Detect Current: 0.7µA (typ) Fast restore feature improves filter settling● Built-In Heart Rate Detection with Interrupt Feature Eliminates the Need to Run HR Algorithm on the µController• Robust R-R Detection in High Motion Environment at Extremely Low Power Uncommitted op amp● Configurable Interrupts Allows the µC Wake-Up Only on Every Heart Beat Reducing the Overall System Power 3-pole adjustable low-pass filter with adjustable gain● High Accuracy Allows for More Physiological Data Extractions Leads off detection: ac or dc options● 32-Word FIFO Allows You to Wake Up µController Every 256ms with Full ECG Acquisition Integrated right leg drive (RLD) amplifier● High-Speed SPI Interface Single-supply operation: 2.0 V to 3.5 V● Shutdown Current of 0.5µA (typ) Integrated reference buffer generates virtual ground  Rail-to-rail output  Internal RFI filter  8 kV HBM ESD rating  Shutdown pin  20-lead 4 mm × 4 mm LFCSP package ApplicationsMAX30003AD8232Single Lead Event Monitors for Arrhythmia DetectionFitness and activity heart rate monitorsSingle Lead Wireless Patches for At-Home/ In-Hospital MonitoringPortable ECGChest Band Heart Rate Monitors for Fitness ApplicationsRemote health monitorsBio Authentication and ECG-On-Demand ApplicationsGaming peripherals Biopotential signal acquisition DatasheetYou can download datasheets below.MAX30003-DatasheetAD8232-Datasheet SpecificationBase Product NumberMAX30003Base Product NumberAD8232CategoryIntegrated Circuits (ICs) Specialized ICsCategoryDevelopment Boards, Kits, Programmers Evaluation and Demonstration Boards and KitsMfrMaxim IntegratedMfrAnalog Devices Inc.Series-Series-PackageTrayPackageBoxPart StatusActivePart StatusActiveTypeECG Front EndTypeInterface ManufacturerMAX30003:Maxim Integrated, a subsidiary of Analog Devices, designs, manufactures, and sells analog and mixed-signal integrated circuits for the automotive, industrial, communications, consumer, and computing markets. Maxim's product portfolio includes power and battery management ICs, sensors, analog ICs, interface ICs, communications solutions, digital ICs, embedded security, and microcontrollers. The company is headquartered in San Jose, California, and has design centers, manufacturing facilities, and sales offices worldwide. AD8232:Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing and power management technology, headquartered in Wilmington, Massachusetts. In 2012, Analog Devices led the worldwide data converter market with a 48.5% share, according to analyst firm Databeans. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. FAQWhat does the MAX30003 provide?ECG waveforms and heart rate detection What is the MAX30003 ideal for?Wearable applications What does AD8232 allow for to acquire the output signal?An ultralow power analog-to-digital converter (ADC) or an embedded microcontroller 
kynix On 2022-04-13   3900
Integrated Circuits (ICs)

TPA3251D2DDV Power Amplifier: Datasheet, Pinout and Features

 CatalogDescriptionPin ConfigurationBlock DiagramFeaturesApplicationsDatasheetProduct AttributesManufacturerUsing WarningFAQDescriptionTPA3251 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary highspeed gate driver error correction (PurePath™ UltraHD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI's PCM5242.  In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations. Pin Configuration Figure: TPA3251D2DDV Pin Configuration Block Diagram  Figure:  Block Diagram FeaturesDifferential Analog InputsTotal Output Power at 10%THD+N       – 175-W Stereo into 4 Ω in BTL Configuration       – 220-W Stereo into 3 Ω in BTL Configuration       – 350-W Mono into 2 Ω in PBTL ConfigurationTotal Output Power at 1%THD+N       – 140-W Stereo into 4 Ω in BTL Configuration       – 175-W Stereo into 3 Ω in BTL Configuration       – 285-W Mono into 2 Ω in PBTL ConfigurationAdvanced Integrated Feedback Design with Highspeed Gate Driver Error Correction(PurePath™ Ultra-HD)       – Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources       – Ultra Low 0.005% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping       – 60 dB PSRR (BTL, No Input Signal)       – <60 µV (A-Weighted) Output Noise       – >111 dB (A Weighted) SNRMultiple Configurations Possible:       – Stereo, Mono, 2.1 and 4xSEClick and Pop Free Startup and Stop90% Efficient Class-D Operation (4 Ω)Wide 12-V to 36-V Supply Voltage OperationSelf-Protection Design (Including Undervoltage,Overtemperature, Clipping, and Short Circuit Protection) With Error ReportingEMI Compliant When Used With RecommendedSystem Design ApplicationsBlu-ray Disk™ / DVD ReceiversHigh End HTiB SystemsAV ReceiversHigh End SoundbarMini Combo SystemsActive Speakers and Subwoofers Figure: Typical Differential Input BTL Application DatasheetTPA3251D2DDV-Datasheet Product AttributesProduct Category:Audio AmplifiersSeries:TPA3251D2Product:Audio AmplifiersClass:Class-DOutput Power:175 W, 220 W, 350 WMounting Style:SMD/SMTType:Mono, StereoPackage / Case:HTSSOP-44THD plus Noise:0.00005Supply Voltage - Max:36 VSupply Voltage - Min:12 VMinimum Operating Temperature:0 CMaximum Operating Temperature:+ 70 CPackaging:TubeHeight:1.2 mmInput Type:AnalogLength:14.1 mmWidth:6.2 mmBrand:Texas InstrumentsGain:20 dBNumber of Channels:4 ChannelMoisture Sensitive:YesOperating Supply Current:40 mAProduct Type:Audio AmplifiersPSRR - Power Supply Rejection Ratio:80 dBSNR - Signal to Noise Ratio:111 dBFactory Pack Quantity:35Subcategory:Audio ICsUnit Weight:0.011933 oz ManufacturerTexas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. FAQWhat is the difference: TPA3251 vs TPA3255?When comparing the THD statistics of TPA3251 and TPA3255 (according to the datasheet), the TPA3255 offers the same/better values into 8 Ohms than the TPA3251 does into 4 Ohms. THD values for up to 5W output power are slightly greater for the TPA3255 than for the TPA3251 when compared with a 4 ohm load. What does class D mean for amplifiers?Class D amplifiers, sometimes known as "digital" amplifiers, operate by changing the sample frequency to extremely high frequencies. They accomplish it by using MUCH smaller power transformers, which takes up significantly less inside space—which is always limited in subwoofers.
kynix On 2022-04-12   3866
Integrated Circuits (ICs)

STM32F103CBT6 ARM Microcontrollers: Specification, Pinout and Attributes [FAQ]

 The STM32F103CBT6 is a medium density performance line, ARM Cortex-M3 32bit microcontroller in 48 pin LQFP package. CatalogProduct OverviewCAD ModelsProduct PinoutSTM32F103CBT6 PriceSTM32F103CBT6 BenefitsSTM32F103CBT6 Product AttributesSTM32F103CBT6 ApplicationsSTM32F103CBT6 AlternativeUsing WarningMore InformationFrequently Asked QuestionsProduct OverviewThe STM32F103CBT6 is a medium density performance line, ARM Cortex-M3 32bit microcontroller in 48 pin LQFP package. It incorporates high performance RISC core with 72MHz operating frequency, high speed embedded memories, extensive range of enhanced I/Os and peripherals connected to two APB buses. The STM32F103CBT6 features 12bit ADC, timers, PWM timer, standard and advanced communication interfaces. A comprehensive set of power saving mode allows design of low power applications. CAD Models Part Symbol Footprint 3D Model Product PinoutPinout STM32F103CBT6 PriceSuppliersFromIn stockDelivery(Day)MOQCurrency1+10+100+1K+10K+Digi-KeyUSA0Immediate1USD $7.336.5795.1144.6074.607element14UK02-61USD $6.0225.1184.4333.1913.128AMEYA360HongKong0-250USD $--2.922.922.92Future3USA06-80USD $5.8055.4685.0114.8594.859JLCShopChina0Immediate1USD $24.54619.28716.26215.34215.342 STM32F103CBT6 Benefits■ Harvard architecture■ 1.25 DMIPS/MHz and 0.19 mW/MHz■ Thumb-2 instruction set brings 32-bit performancewith 16-bit code density■ Single cycle multiply and hardware division■ Embedded, fast interrupt controller is now inside thecore allowing:■ Excellent real-time behaviour■ Low latency down to six CPU cycles inter-interrupt■ Six CPU cycles wake-up time from low-power mode■ Up to 35% faster and up to 45% less code than ARM7TDMI Component DatasheetSTM32F103CBT6-Datasheet STM32F103CBT6 Product AttributesPhysicalCase/PackageLQFPContact PlatingTinMountSurface MountNumber of Pins48 TechnicalAddress Bus Width32 bCore ArchitectureARMData Bus Width32 bFrequency64 MHzInterface2-Wire, I2C, I2S, MMC, SPI, UART, USART, USBMax Frequency64 MHzMax Operating Temperature85 °CMax Supply Voltage3.6 VMemory Size128 kBMemory TypeFLASHMin Operating Temperature-40 °CMin Supply Voltage1.62 VNumber of ADC Channels8Number of I2C Channels2Number of I/Os34Number of Programmable I/O34Number of PWM Channels4Number of SPI Channels1Number of Timers/Counters3Number of UART Channels2Operating Supply Voltage3.3 VOscillator TypeInternalPeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDTRAM Size32 kBSchedule B8542310000Watchdog TimerYes DimensionsHeight1.45 mmLength7 mmWidth7 mm ComplianceLead FreeLead FreeREACH SVHCNo SVHCRoHSCompliant STM32F103CBT6 ApplicationsIndustrial:■ PLC■ Inverters■ Printers, scanners■ Industrial networking Building and security:■ Alarm systems■ Video intercom■ HVAC Low power:■ Glucose meters■ Power meters■ Battery operated applications Appliances:■ Motor drive■ Application control Consumer:■ PC peripherals, gaming■ Digital camera, GPS platforms STM32F103CBT6 AlternativeSTM32F303CBT6, STM32F303CBT7, STM32F303CBT6TR, ATSAM3S2AA-AU Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit.  STM32F103CBT6 Reference ManualYou can download the manual from the link given below:STM32F103CBT6-Reference-Manual More InformationSTMicroelectronics STM32 F1 Mainstream Microcontrollers (MCUs) cover the needs of a large variety of applications in the industrial, medical, and consumer markets. With this series, ST has pioneered the world of Arm® Cortex®-M microcontrollers and set a milestone in the history of embedded applications. High performance with first-class peripherals and low-power, low-voltage operation is paired with a high level of integration at accessible prices with a simple architecture and easy-to-use tools. These STMicroelectronics MCUs come with up to 72MHz CPU frequency, from 16KB to 1MB Flash, 4KB to 80KB of RAM, and a variety of embedded peripherals, such as USB, timers, USART, temperature sensor, ADC, and DAC. Frequently Asked QuestionsWhat are ARM based microcontrollers?An ARM MCU is developed by ARM Holdings that contains an ARM processor core developed based on Advanced RISC Machine (ARM) architecture with32-bit RISC (reduced instruction set computer) instruction set in it. ARM cores include Cortex, SecurCore, and Mali What is microcontroller Arduino?Arduino consists of both a physical programmable circuit board (often referred to as a microcontroller) and a piece of software, or IDE (Integrated Development Environment) that runs on your computer, used to write and upload computer code to the physical board. What can a microcontroller do?Microcontrollers are embedded inside devices to control the actions and features of a product. Microcontrollers can take inputs from the device they controlling and retain control by sending the device signals to different parts of the device. A good example is a TV's microcontroller. What type of package does the STM32F103CBT6 come with?48 pin LQFP
kynix On 2022-04-12   3858
Integrated Circuits (ICs)

LM555CN Timer: Datasheet, Pinout, Features [FAQ]

Product OverviewThe LM555CN is a highly stable Controller/Single Timer, capable of producing accurate timing pulses. With monostable operation, the time delay is controlled by one external resistor and one capacitor. With a stable operation, the frequency and duty cycle are accurately controlled with two external resistors and one capacitor. This blog will introduce LM555CN systematically from its features, pinout to its specifications, applications, also including LM555CN VS LM555N and so much more. CatalogProduct OverviewLM555CN FeaturesLM555CN ApplicationsLM555CN PinoutLM555CN CAD ModelsLM555CN Equivalents and Replacement LM555CN Block DiagramLM555CN SpecificationLM555CN VS LM555NLM555CN ManufacturerLM555CN DatasheetUsing WarningsLM555CN FAQ LM555CN FeaturesHigh Current Drive Capability (200mA)Adjustable Duty CycleTemperature Stability of 0.005%/°CTiming From µSecond to HoursLess Than 2µSeconds Turn Off TimePrecision TimingPulse GenerationTime Delay GenerationSequential Timing LM555CN ApplicationsPulse width modulationLinear ramp generatorPrecision timingPulse generationSequential timingTime delay generationPulse position modulation LM555CN PinoutThe following figure is the diagram of LM555CN pinout. LM555CN Pinout LM555CN has eight pins. Pin 1 is the ground pin that is connected to the ground. Pin 2 is the trigger pin, and pin 3 is the output pin. Pin 4 resets the voltage while pin 5 controls the voltage. Pin 6 is the threshold pin, and pin seven is the discharge pin. Pin 8 is the Vcc pin. LM555CN CAD ModelsFollowings are LM555CN Symbol, Footprint, and 3D Model. LM555CN Symbol LM555CN Footprint LM555CN 3D Model  LM555CN Equivalents and Replacement The equivalents of LM555CN are NE555N, NE555D, SA555D, SA555 and LM555CM. All of these are available in either the 8-DIP or 8-SOP package. LM555CN is available in the 8-DIP package. But for the SA55 and SA555D, the operating temperatures of the other equivalents are similar to those of LM555CN. LM555CN Block DiagramThe following figure shows the block diagram of LM555CN. LM555CN Block Diagram LM555CN SpecificationProduct AttributeAttribute ValueManufacturer:onsemiProduct Category:Timers & Support ProductsType:StandardNumber of Internal Timers:1 TimerSupply Voltage - Max:16 VSupply Voltage - Min:4.5 VMinimum Operating Temperature:0°CMaximum Operating Temperature:+ 70°CMounting Style:Through HolePackage / Case:PDIP-8Height:3.4 mmLength:9.2 mmWidth:6.4 mmBrand:onsemi / FairchildHigh Level Output Current:50 mALow Level Output Current:- 200 mAPd - Power Dissipation:600 mWProduct Type:Timers & Support ProductsSubcategory:Clock & Timer ICsPart # Aliases:LM555CN_NLUnit Weight:0.015873 oz LM555CN VS LM555NSource Content uidLM555CNLM555NPart Life Cycle CodeObsoleteObsoleteIhs ManufacturerON SEMICONDUCTORINTERSIL CORPPackage DescriptionDIP, DIP8,.3DIP, DIP8,.3Reach Compliance Codecompliantnot_compliantECCN CodeEAR99EAR99HTS Code8542.39.00.018542.39.00.01Samacsys DescriptionON Semiconductor LM555CN, Timer, 4.5 → 16 V, 8-Pin PDIP Samacsys ManufacturerON Semiconductor Additional FeatureIT CAN ALSO OPERATE AT 15V NOMINAL SUPPLY Analog IC - Other TypePULSE; RECTANGULAR JESD-30 CodeR-PDIP-T8R-PDIP-T8JESD-609 Codee3e0Number of Terminals88Operating Temperature-Max70 °C125 °COperating Temperature-Min -55 °CPackage Body MaterialPLASTIC/EPOXYPLASTIC/EPOXYPackage CodeDIPDIPPackage Equivalence CodeDIP8,.3DIP8,.3Package ShapeRECTANGULARRECTANGULARPackage StyleIN-LINEIN-LINEPeak Reflow Temperature (Cel)NOT SPECIFIED Power Supplies5/15 V5/15 VQualification StatusNot QualifiedNot QualifiedSeated Height-Max5.33 mm Supply Voltage-Max (Vsup)16 V Supply Voltage-Min (Vsup)4.5 V Supply Voltage-Nom (Vsup)5 V Surface MountNONOTechnologyBIPOLARBIPOLARTemperature GradeCOMMERCIALMILITARYTerminal FinishTin (Sn)Tin/Lead (Sn/Pb)Terminal FormTHROUGH-HOLETHROUGH-HOLETerminal Pitch2.54 mm2.54 mm LM555CN 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. LM555CN DatasheetLM555CN Datasheet Using WarningsNote: Please check their parameters and pin configuration before replacing them in your circuit. LM555CN FAQ① Is NE555 same as LM555?They're the same thing. Just "555" refers to the generic concept of a 555 timer IC. The NE555 was the original part number assigned by Signetics to the commercial temperature range variant (SE555 was the military temperature range type). ② How many pins is LM555?Here is the arrangement of the eight pins in a standard 555 IC. The 555 comes in an 8-pin DIP package. Here are the functions of each of the eight pins: Ground: Pin 1 is connected to ground. ③ Are all 555 timers the same?Due to minor variations in process the CMOS chips can have variations in performances and speeds, but mostly they are interchangeable with each other, just like a standard 555 is usually interchangeable between manufacturers. ④ Is the lm555 Timer pin to pin compatible?The LM555 are available in 8-pin PDIP, SOIC, and VSSOP packages and is a direct replacement for SE555/NE555. The LM555 timer is a direct replacement for SE555 and NE555. It is pin-to-pin compatible so that no schematic or layout changes are necessary. The LM555 come in an 8-pin PDIP, SOIC, and VSSOP package. ⑤ How does the lm555 time delay controller work?The LM555/NE555/SA555 is a highly stable controller capable of producing accurate timing pulses. With monostable operation, the time delay is controlled by one external resistor and one capacitor. With a stable operation, the frequency and duty cycle are accurately controlled with two external resistors and one capacitor.
kynix On 2022-03-16   3846
Integrated Circuits (ICs)

CD4017BE Counter: Datasheet, Pinout and CAD Models

 CD4017B and CD4022B are 5-stage and 4-stage Johnson counters having 10 and 8 decoded outputs, respectively.  Video about CD4017BE CatalogProduct OverviewCAD ModelsProduct PinoutFeaturesApplicationsPackaging InformationDatasheetProduct AttributesManufacturerUsing Warning Product OverviewCD4017B and CD4022B  are 5-stage and 4-stage Johnson counters having 10 and 8 decoded outputs, respectively. Inputs include a CLOCK, a RESET, and a CLOCK INHIBIT signal. Schmitt trigger action in the CLOCK input circuit provides pulse shaping that allows unlimited clock input pulse rise and fall times. These counters are advanced one count at the positive clock signal transition if the CLOCK INHIBIT signal is low. Counter advancement via the clock line is inhibited when the CLOCK INHIBIT signal is high. A high RESET signal clears the counter to its zero count. Use of the Johnson counter configuration permits high-speed operation, 2-input decode-gating, and spike-free decoded outputs. Anti-lock gating is provided, thus assuring proper counting sequence. The decoded output is normally low and go high only at their respective decoded time slot. Each decoded output remains high for one full clock cycle. A CARRY-OUT signal completes on cycle every 10 clock input cycles in the CD4017B or every 8 clock input cycles in the CD4022B  and is used to ripple-clock the succeeding device in a multi-device counting chain. The CD4017B  and CD4022B  types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). The CD4017B types also are supplied in 16-lead small-outline packages (M and M96 suffixes). CAD Models Part Symbol  Footprint  3D Model Product PinoutCD4017BE Pinout Features■Fully static operation■Medium-speed operntion...10 MHz (typ.)st Vop- 10V■Standardized, symmtrical output characteristics■ 100% tested for quiescent current at 20 V■5-V, 10-V, and 15-V parametric ratings■Meets all requirement of JEDEC Tentative Standard No. 13A, "Standard Specifications for Description of‘B' Seriet CMOS Devices" Applications■Decade counter/decimal decode display (CD4017B)■Binary counter/decoder■Frequency division■Counter control/timers■Divide-by-N counting■For further application information,see ICAN-6166“COS/MOS MSI Counter and Register Derign and Applications" The CD4017B and CD4022B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). The CD40178 types also are supplied in 16-lead smal-outline packages (M and M96 suffixes). Packaging InformationDeviceCD4017BEPackage nameNPackage typePDIPPins16SPQ25L (mm)506W (mm)13.97T (μm)11230B (mm)4.32 DatasheetCD4017BE-Datasheet Product AttributesProduct AttributeAttribute ValueManufacturer:Texas InstrumentsProduct Category:Counter ICsRoHS: DetailsMounting Style:Through HolePackage / Case:PDIP-16Counter Type:DecadeLogic Family:CD4000Number of Bits:10 bitCounting Method:SynchronousCounting Sequence:UpOperating Supply Voltage:3 V to 18 VMinimum Operating Temperature:- 55 CMaximum Operating Temperature:+ 125 CSeries:CD4017BPackaging:TubeFunction:CounterOperating Temperature Range:- 55 C to + 125 COutput Current:+/- 1.5 mABrand:Texas InstrumentsProduct Type:Counter ICsFactory Pack Quantity:25Subcategory:Counter ICsUnit Weight:0.033570 oz 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. The company holds 45,000 patents worldwide as of 2016. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. FAQHow many decoded outputs do CD4017B and CD4022B have?10 and 8 What does Schmitt trigger action provide?Pulse shaping What is a 4017 decade counter?The CD4017 is a CMOS Decade counter IC. CD4017 is used for low range counting applications. It can count from 0 to 10 (the decade count). The circuit designed by using this ic will save board space and also time required to design the circuit. CD4017 is as 'Johnson 10 stage decade counter'. How do I use CD4017 IC?Connect a potentiometer with pin number 6 and 7. Connect pin number 6 with the pin 2 and connect 10µF capacitor positive terminal with it and the negative terminal with the ground. Now connect pin 3 of the 555 IC with the clock pin of CD4017 which is pin number 14. What are the CD4017B and CD4022B types supplied in?16-lead hermetic dual-in-line ceramic package
kynix On 2022-05-06   3843

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