The Kynix Components

A 1N4001 is a diode of 1N400x series, all diodes of this series are widely used in electronic devices.The 1N4001 diode is manufactured with good specifications, such as 1A upstream current, 3W power dissipation, small in size with low price, which makes it ideal for a wide variety of electronic applications.How to use a Diode (1N4001 example)?Catalog1N4001 Pinout1N4001 CAD Model1N4001 Parameters1N4001 Alternatives1N4001 Advantage1N4001 Features1N4001 Application1N4001 Documents & Media1N4001 Mechanical Characteristics1N4001 Environmental and Export Classifications1N4001 Ambient Mounting Data1N4001 Package1N4001 MeaningProduct ManufacturerComponent DatasheetFAQ1N4001 Pinout1N4001 diode has a cathode (-) and anode (+). In the schematic symbol, the tip of the triangle with the line on top of it is the cathode.Diode polarity Current can flow from the anode to the cathode only and never from the cathode to the anode - 1N4001 diode is like a one-way valve.Pin No.Pin NameDescription1AnodeCurrent always Enters through Anode2CathodeCurrent always Exits through Cathode1N4001 CAD Model1N4001 Symbol1N4001 Footprint1N4001 3D Model1N4001 ParametersAverage Rectified Current1ABrandON SemiconductorCapacitance15pFConfigurationSingleContact PlatingTin, MatteCurrent Rating1ADiameter2.72mmElement ConfigurationSingleForward Current1AForward Voltage1.1VHeight5.2 mmIf - Forward Current1 AIr - Reverse Current10 uALead FreeLead FreeLength5.2 mmManufacturerON SemiconductorMax Operating Temperature175°CMax Reverse Current5uAMax Reverse Voltage (DC)50VMax Surge Current30AMaximum Operating Temperature+ 175 CMountThrough HoleNumber of Pins2Output Current1APackage / CaseDO-41-2PolarityStandardPower Dissipation3WREACH SVHCNo SVHCReverse Voltage50VRoHSNSubcategoryDiodes & RectifiersTermination StyleThrough HoleTypeStandard Recovery RectifiersUnit Weight0.010935 ozVf - Forward Voltage1.1 VVoltage Rating (DC)50VVr - Reverse Voltage50 VWeight0.245g1N4001 AlternativesManufacturerManufacturer Part No.Diodes1N4002-TDiodes1N4002G-TON Semiconductor1N4002GDiodes Zetex1N4002-BVishay Semiconductors1N4002E-E3/73Vishay Semiconductors1N4002-E3/54Vishay Semiconductors1N4002-E3/73Vishay Semiconductors1N4002E-E3/54Vishay Semiconductors1N4002E-E3/53Vishay Semiconductors1N4002-E3/531N4001 Advantage1N4001 DiodeA diode is a device which allows current flow through only one direction. That is the current should always flow from the Anode to cathode. The cathode terminal can be identified by using a grey bar as shown in the picture above.For 1N4001 Diode, the maximum current carrying capacity is 1A it withstand peaks up to 30A. Hence we can use this in circuits that are designed for less than 1A. The reverse current is 5uA which is negligible. It can withstand reverse voltage peak up to 50V.1N4001 FeaturesAverage forward current is 1ANon-repetitive peak current is 30AReverse current is 5uA.RMS reverse voltage is 35VPeak repetitive Reverse voltage is 50VAvailable in DO-41 Package1N4001 ApplicationCan be used to prevent reverse polarity problemHalf Wave and Full Wave rectifiersUsed as a protection deviceCurrent flow regulators1N4001 Documents & MediaResource TypeLinkEnvironmental InformationMaterial Declaration 1N4001PCN Obsolescence/ EOLMultiple Devices 19/Jun/2009PCN Part Status ChangeStatus Chg 22/Feb/2017HTML Datasheet1N4001-4007 Datasheet1N4001 Mechanical CharacteristicsCase: Epoxy, MoldedWeight: 0.4 gram (approximately)Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily SolderableLead and Mounting Surface Temperature for Soldering Purposes: 260°C Max. for 10 Seconds, 1/16 in. from casePolarity: Cathode Indicated by Polarity Band1N4001 Environmental and Export ClassificationsAttributeDescriptionMoisture Sensitivity Level (MSL)1 (Unlimited)1N4001 Ambient Mounting DataData shown for thermal resistance, junction−to−ambient (RJA) for the mountings shown is to be used as typical guideline values for preliminary engineering or in case the tie point temperature cannot be measured.1N4001 Package1N4001 Meaning1N4001 series diodes are 1 Ampere current handling general purpose rectifier diode. 1N is stands for American standard semiconductor (Generic name) with ONE JUNCTION.400X Series like 4001,4002 to 4007 is indicates the voltage, current and power rating of the diodes.1N= Means One Junction between P-type and N-Type.400= Means Serial number of the rectifier.1= Means Defines its (1 A) current rating.Product ManufacturerON Semiconductor (Nasdaq: ON) 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.ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.ns. Component Datasheet1N4001 DatasheetFAQWhat is 1N4001 diode used for?The 1N400x (or 1N4001 or 1N4000) series is a family of popular one-ampere general-purpose silicon rectifier diodes commonly used in AC adapters for common household appliances. Its blocking voltage varies from 50 volts (1N4001) to 1000 volts (1N4007).What is the difference between 1N4001 and 1N4007 diodes?Differences are : Peak Repetitive Reverse Voltage of 1N4001 is 50V while that of 1N4007 is 1000V. RMS Reverse Voltage of 1N4001 is 35V while that of 1N4007 is 700V. Typical Junction Capacitance of 1N4001 is 15pF while that of 1N4007 is 8pF.What is purpose of a diode?It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. Diodes are also known as rectifiers because they change alternating current (ac) into pulsating direct current (dc). Diodes are rated according to their type, voltage, and current capacity.

This blog provides you with a basic overview of the STM32F7 Series, including its specifications, datasheet, frequently asked questions, etc., to help you quickly understand what STM32F7 Series are.We will be glad to find that this blog can be useful for STM32F7 Series lover.CatalogSTM32F7 AdvantageSTM32F7x0 Value lineSTM32F7x2STM32F7x3STM32F7x5STM32F7x6STM32F7x7STM32F7x9STM32H7 ManufacturerComponent DatasheetFAQSTM32F7 AdvantageSTMicro STM32F7 SeriesThe STM32F7 microcontrollers are based on an Arm® Cortex® -M7 core offering from 216 MHz / 462 DMIPS. Thanks to an L1 cache, the series delivers the maximum possible theoretical performance of the Cortex-M7 core.The STM32F7 series includes advanced and foundation lines as well as the STM32F7x0 value line.STM32F7 series of very high-performance MCUs with Arm® Cortex®-M7 coreTaking advantage of ST’s ART Accelerator™ as well as an L1 cache, STM32F7 microcontrollers deliver the maximum theoretical performance of the Cortex-M7 core, regardless if code is executed from embedded Flash or external memory: 1082 CoreMark /462 DMIPS at 216 MHz fCPU.Smart architecture with new peripheral setThe STM32F7 series unleashes the Cortex-M7 core:AXI and multi-AHB bus matrixes for interconnecting core, peripherals and memoriesUp to 16 Kbytes +16 Kbytes of I-cache and D-cacheUp to 2 Mbytes of embedded Flash memory, with Read-While-Write capability on certain devicesTwo general-purpose DMA controllers and dedicated DMA controllers for Ethernet (on some variants), high-speed USB On-The-Go interfaces and the Chrom-ART graphic accelerator (on some variants)Peripheral speed is independent from CPU speed (dual clock support) allowing system clock changes without any impact on peripheral operationsEven more peripherals, such as two serial audio interfaces (SAI) with SPDIF output support, three I²S half-duplex interfaces with SPDIF input support, two USB OTG interfaces with dedicated power supply and Dual-mode Quad-SPI Flash memory interfaceLarge SRAM with a scattered architecture:Up to 512 Kbytes of universal data memory, including up to 128 Kbytes of Tightly-Coupled Memory for Data (DTCM) for time critical data handling (stack, heap...)16 Kbytes of Tightly-Coupled Memory for Instructions (ITCM) for time-critical routines4 Kbytes of backup SRAM to keep data in the lowest power modesProtected code execution feature (PC-ROP) on some variantsOn-chip USB high-speed PHY on some variantsPower efficiency7 CoreMark/mW at 1.8 V100 µA typical current consumption in Stop mode with all context and SRAM savedCompatibilityCortex-M7 is backwards compatible with the Cortex-M4 instruction setSTM32F7 series is pin-to-pin compatible with the STM32F4 series** Note: see datasheet for the specific case of 64- and 100-pin packagesSTM32F7 Series Advanced LinesSTM32F7 Series Foundation LinesSTM32F7 Series Value LinesSTM32F7x0 Value lineThe STM32F730 and STM32F750 Value lines provide the performance of the Arm® Cortex®-M7 core (with floating point unit) running at up to 216 MHz at a low cost by reducing embedded Flash to the essentials. The STM32F7x0 Value lines represent the lowest price point for the STM32F7 Series ever.PerformanceThe STM32F7x0 line, with a 216 MHz fCPU, achieves 1082 CoreMark / 462 DMIPS performance when executing from Flash memory, with 0-wait states thanks to ST's ART Accelerator. The FPU and DSP instructions broaden the addressable applications. Because of the L1 cache (I/D up to 8 Kbytes + 8 Kbytes), external memory can be used without sacrificing performance.Power efficiencyST’s 90 nm process, ART Accelerator™ and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V.In Stop mode, power consumption is typically 100 µA.The maximum junction temperature supported is up to 125 °C, allowing to leverage the full core and peripherals performance even when the ambient temperature increases.GraphicsThe STM32F750 line includes an LCD-TFT controller interface with dual-layer support that takes advantage of the Chrom‑ART Accelerator™. This graphics accelerator creates content twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for other applications.IntegrationAudio: Two dedicated audio PLLs, three half-duplex I²S interfaces and a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode.Up to 25 communication interfaces (including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, up to six SPIs running at up to 50 Mbit/s, up to four I²C interfaces with a new optional digital filter capability, up to two CAN, up to two SDMMC, USB 2.0 full-speed device/host/OTG controller with an optional on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller (with on-chip high-speed PHY), optional SPDIF-IN and optional HDMI-CEC.Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 Msample/s or 7.2 Msample/s in Interleaved mode.Up to eighteen 16- and 32-bit timers running at up to 216 MHz.Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI Flash memory interface to allow code execution from an external serial Flash memory.An analog true random number generator.SecurityThe STM32F7x0 line comes with the proprietary code read-out-protection feature and integrates a crypto processor providing hardware acceleration for AES-128 and -256 encryption.The STM32F7x0 line integrates a crypto/hash processor providing hardware acceleration for AES-128, -192 and -256 encryption, with support for GCM and CCM, Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms.The STM32F7x0 Value line provides 64 Kbytes of Flash memory and 320 Kbytes of SRAM including up to 64 Kbytes of Tightly-Coupled Memory for Data (DTCM), 16 Kbytes of Tightly-Coupled Memory for Instructions (ITCM), and 4-Kbyte Backup RAM, in LQFP64, LQFP100, LQFP144 ,UFBGA 176-and TFBGA216 pin packages.STM32F7x2The STM32F7x2 line offers the performance of the Cortex-M7 core (with floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F7x2 delivers 1082 CoreMark / 462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The FPU and DSP instructions enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (I/D 8 Kbytes + 8 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces and a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode.Up to 21 communication interfaces (including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, up to five SPIs running at up to 50 Mbit/s, three I²C interfaces with a new optional digital filter capability, one CAN, two SDIO, USB 2.0 full-speed device/host/OTG controller with on-chip PHY.USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA (with on-chip full-speed PHY and ULPI).Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 Msample/s or 7.2 Msample/s in Interleaved mode.Up to eighteen 16- and 32-bit timers running at up to 216 MHz.Easily extendable memory range using the flexible memory controller (on packages with than 100 pins) with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI Flash memory interface to allow code execution from external serial Flash memory.An analog true random number generator.The STM32F7x2 line comes with the proprietary code Read-out-protection featureThe STM32F7x2 line provides variants from 256 to 512 Kbytes of Flash memory and up to 256 Kbytes of SRAM including up to 64 Kbytes of Tightly-Coupled Memory for Data (DTCM), 16 Kbytes of Tightly-Coupled Memory for Instructions (ITCM), and 4 Kbytes of Backup RAM, in 64- to 176-pin packages.STM32F7x3The STM32F7x3 line offers the performance of the Cortex-M7 core (with floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F7x3 delivers 1082 CoreMark / 462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The FPU and DSP instructions enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (I/D 8 Kbytes + 8 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces and a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode.Up to 21 communication interfaces (including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, up to five SPIs running at up to 50 Mbit/s, three I²C interfaces with a new optional digital filter capability, one CAN, two SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller (with on-chip high-speed PHY).Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 Msample/s or 7.2 Msample/s in Interleaved mode.Up to eighteen 16- and 32-bit timers running at up to 216 MHz.Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI Flash memory interface to allow code execution from external serial Flash memory.An analog true random number generator.The STM32F7x3 line comes with the proprietary code Read-out-protection featureThe STM32F7x3 line provides variants from 256 to 512 Kbytes of Flash memory and up to 256 Kbytes of SRAM including up to 64 Kbytes of Tightly-Coupled Memory for Data (DTCM), 16 Kbytes of Tightly-Coupled Memory for Instructions (ITCM), and 4-Kbyte Backup RAM, in 100- to 176-pin packages.STM32F7x5The STM32F745 line offers the performance of the Cortex-M7 core (with floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F745 delivers 1082 CoreMark / 462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The DSP instructions and the floating point unit enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache(I/D 4 Kbytes + 4 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA, which is similar to the STM32F427/429/437/439 lines.Graphics: As compared to the STM32F746/756 lines, the STM32F745 doesn’t embed the LCD-TFT controller interface. However, the STM32F745 embeds the Chrom‑ART Accelerator™. This graphics accelerator performs content creation twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for the rest of the application. The STM32F745 can then be used to drive displays using a standard serial interface.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces and a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode.Up to 25 communication interfaces (including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, six SPIs running at up to 50 Mbit/s, four I²C interfaces with a new optional digital filter capability, two CAN, SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller, on-chip full-speed PHY and ULPI, Ethernet MAC, SPDIF-IN and HDMI-CEC).Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 MSPS or 7.2 MSPS in Interleaved mode.Up to 18 timers: 16- and 32-bit running at up to 216 MHz.Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI to allow code execution from external serial Flash memory.An analog true random number generator.The STM32F745 line provides from 512 Kbytes to 1 Mbyte of Flash memory, 320-Kbyte SRAM, 16-Kbyte ITCM RAM, 4-Kbyte Backup RAM and 100- to 176-pin packages.STM32F7x6The STM32F746/756 lines offer the performance of the Cortex-M7 core (with floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F746/756 lines deliver 1082 CoreMark /462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The DSP instructions and the floating point unit enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (I/D 4 Kbytes + 4 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA, which is similar to the STM32F427/429/437/439 lines.Graphics: The new LCD-TFT controller interface with dual-layer support takes advantage of the Chrom‑ART Accelerator™. This graphics accelerator creates content twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for the rest of the application.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces and a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode.Up to 25 communication interfaces (including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, six SPIs running at up to 50 Mbit/s, four I²C interfaces with a new optional digital filter capability, two CAN, SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller, on-chip full-speed PHY and ULPI, Ethernet MAC, SPDIF-IN and HDMI-CEC).Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 MSPS or 7.2 MSPS in Interleaved mode.Up to 18 timers: 16- and 32-bit running at up to 216 MHz.Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode QuadSPI to allow code execution from external serial Flash memory.An analog true random number generator.The STM32F756 line integrates a crypto/hash processor providing hardware acceleration for AES-128, -192 and -256 encryption, with support for GCM and CCM, Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms.The STM32F746 and STM32F756 portfolio provides from 512 Kbytes to 1 Mbyte of Flash memory, 320-Kbyte SRAM, 16-Kbyte ITCM RAM, 4-Kbyte Backup RAM and 100- to 216-pin packages as small as 4.5 x 5.5 mm in a CSP form factor.STM32F7x7The STM32F767/777 lines offer the performance of the Cortex-M7 core (with double-precision floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F767/777 lines deliver 1082 CoreMark /462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The DSP instructions and the floating point unit enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (I/D 16 Kbytes + 16 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA, which is similar to the STM32F427/429/437/439 lines.Graphics: The new LCD-TFT controller interface with dual-layer support takes advantage of the Chrom‑ART Accelerator™. This graphics accelerator creates content twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for the rest of the application. In addition the STM32F767/777 lines embed a JPEG hardware accelerator for fast JPEG encoding and decoding off-loading the CPU which remains available for other tasks.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces, a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode and a DFSDM (Digital filters for sigma-delta modulators or MEMS microphone)Up to 28 communication interfaces including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, six SPIs running at up to 50 Mbit/s, four I²C interfaces with a new optional digital filter capability, three CAN, two SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller, on-chip full-speed PHY and ULPI, Ethernet MAC, SPDIF-IN, HDMI-CEC, and MDIO slave.Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 or 7.2 MSPS in Interleaved mode. Up to 18 timers: 16- and 32-bit running at up to 216 MHz. Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI to allow code execution from external serial Flash memory. An analog true random number generator.The STM32F777 line integrates a crypto/hash processor providing hardware acceleration for AES-128, -192 and -256 encryption, with support for GCM and CCM, Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms.The STM32F767 and STM32F777 portfolio provides from 1 to 2 Mbytes of Flash memory, 512-Kbyte SRAM including up to 128 Kbytes of Tightly-Coupled Memory for Data (DTCM), 16-Kbyte ITCM RAM, 4-Kbyte Backup RAM and 100- to 216-pin packages.STM32F7x9The STM32F769/779 lines offer the performance of the Cortex-M7 core (with double precision floating point unit) running up to 216 MHz while reaching similar lower static power consumption (Stop mode) versus the STM32F427/429/437/439 lines.Performance: At 216 MHz fCPU, the STM32F769/779 lines deliver 1082 CoreMark /462 DMIPS performance executing from Flash memory, with 0-wait states thanks to ST’s ART Accelerator. The DSP instructions and the floating point unit enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (I/D 16 Kbytes + 16 Kbytes).Power efficiency: ST’s 90 nm process, ART Accelerator and dynamic power scaling enables the power consumption in Run mode and executing from Flash memory to be at 7 CoreMark / mW at 1.8 V. In Stop mode, power consumption is typically 100 µA, which is similar to the STM32F427/429/437/439 lines.Graphics: The new LCD-TFT controller interface with dual-layer support takes advantage of the Chrom‑ART Accelerator™. This graphics accelerator creates content twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for the rest of the application. The STM32F769/779 lines embed a JPEG hardware accelerator for fast JPEG encoding and decoding off-loading the CPU which remains available for other tasks. The STM32F769/779 lines also embed a MIPI-DSI interface allowing the drive of DSI display technology which are commonly found in the mobile market.Integration:Audio: Two dedicated audio PLLs, three half-duplex I²S interfaces, a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode and a DFSDM (Digital filters for sigma-delta modulators or Mems Microphone)Up to 28 communication interfaces including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, six SPIs running at up to 50 Mbit/s, four I²C interfaces with a new optional digital filter capability, three CAN, two SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller, on-chip full-speed PHY and ULPI, Ethernet MAC, SPDIF-IN, HDMI-CEC, MDIO slave.Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 MSPS or 7.2 MSPS in Interleaved mode. Up to 18 timers: 16- and 32-bit running at up to 216 MHz.Easily extendable memory range using the flexible memory controller with 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI to allow code execution from external serial Flash memory.An analog true random number generator.The STM32F779 line integrates a crypto/hash processor providing hardware acceleration for AES-128, -192 and -256 encryption, with support for GCM and CCM, Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms.The STM32F769 and STM32F779 portfolio provides from 1Mbyte to 2 Mbyte of Flash memory, 512-Kbyte SRAM including up to 128 Kbytes of Tightly-Coupled Memory for Data (DTCM), 16-Kbyte ITCM RAM, 4-Kbyte Backup RAM and 100- to 216-pin packages including a WLCSP* form factor as small as 5.6 x 6.1 mm.Note: * while the “regulator off” feature is available in the STM32F7x9 LQFP and BGA package variants upon activation via a dedicated input, the feature is not available on standard WLCSP product variants. However, two specific WLCSP “regulator off” devices are available, STM32F778 (with crypto/hash accelerator) and STM32F768 (without crypto/hash accelerator), operating at 180 MHz maximum CPU frequency.STM32H7 ManufacturerSTMicroelectronics is a Swiss-domiciled multinational electronics and semiconductor manufacturer headquartered in Geneva, Switzerland.STMicroelectronics is a world leader in providing the semiconductor solutions that make a positive contribution to people's lives, today and into the future.Component DatasheetSTM32F7 DatasheetFAQWhy is STM32 So Popular?The STM32 series of microcontrollers from ST Microelectronics is a popular, and very large, family of ARM-based 32-bit microcontrollers. ... While the STM32 microcontrollers are quite versatile and highly configurable, it is this very fact that makes them hard to initialize.Where is STM32 Used?There are various types and varieties of STM32 Microcontrollers available and they belong to the ARM-architecture family of Microcontrollers. These microcontrollers are used in a variety of applications, from simple printers to complex circuit boards in vehicles.How Do I Start STM32?Getting started with STM32 step-by-stepStep 1: Pre-requisites: In this part, user must install all required software tools and make sure it has board for further development.Step 2: LED blinking using STM32CubeMx and NUCLEO-L476RG development board.Step 3: UART interface on NUCLEO-L476RG and L475 IoT Node Discovery board.

MAX3232 is a commonly used rs232 to ttl converter ic. This blog will provide you as much information as possible about the MAX3232, including its pinout, features, its differences between MAX232, where and how to use it, etc. Hope this blog helps! This is a tutorial video showing how to convert ttl to rs232 using MAX3232 in details.CatalogMAX3232 DescriptionMAX3232 PinoutMAX3232 FeaturesMAX3232 ParameterMAX3232 SchematicMAX3232 vs MAX232MAX3232 EquivalentWhere to use MAX3232 icHow to use MAX3232 icMAX3232 ApplicationMAX3232 PackageComponent DatasheetMAX3232 DescriptionMAX3232 is a commonly used rs232 to ttl converter ic. It consists of two line drivers, two line receivers, and a dual charge-pump circuit with terminal to terminal ESD protection of 15 kV. (serial-port connection terminals, including GND).  The device complies with TIA/EIA-232-F standards and provides the electrical interface between an asynchronous communication controller and a serial-port connector. The charge pump and four small external capacitors allow the device to operate from a single 3V to 5.5V supply. The devices have data signaling rates of up to 250 kbit/s and a maximum driver output slew rate of 30V/s. When powered from a 3.0V to 5.5V power supply, the max3232 uses a proprietary low-dropout transmitter output stage with dual charge pumps to achieve true RS232 performance. The device only requires four 0.1uF external small size charge pump capacitors. max3232 maintains the RS-232 output level while ensuring a data rate of 120kbps.MAX3232 PinoutMAX3232MAX3232 Pinout Pin NumberPin NameDescription1C1 +Positive lead of C1 capacitor2V+Positive charge pump output for storage capacitor only3C1 -Negative lead of C1 capacitor4C2+Positive lead of C2 capacitor5C2-Negative lead of C2 capacitor6V-Negative charge pump output for storage capacitor only7DOUT2RS232 line data output (to remote RS232 system) 8RIN2RS232 line data input (from remote RS232 system) 9ROUT2Logic data output (to UART)10DIN2Logic data input (from UART)11DIN1Logic data input (from UART) 12ROUT1Logic data output (to UART)13RIN1RS232 line data input (from remote RS232 system)14DOUT1RS232 line data output (to remote RS232 system)15GroundConnects to the ground of the circuit16VccSupply Voltage, Connect to external 3V to 5.5V power supplyMAX3232 FeaturesRS-232 Bus-Terminal ESD Protection Exceeds±15 kV Using Human-Body Model (HBM)Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU V.28 StandardsOperates With 3-V to 5.5-V VCC SupplyOperates up to 250 kbit/sTwo Drivers and Two ReceiversLow Supply Current: 300 µA TypicalExternal Capacitors: 4 × 0.1 µFAccepts 5-V Logic Input With 3.3-V SupplyAlternative High-Speed Terminal-Compatible Devices (1 Mbit/s): SN65C3232 (–40°C to 85°C)/SN75C3232 (0°C to 70°C)MAX3232 ParameterManufacturer:Texas InstrumentsSeries:-Packaging:Tape & Reel (TR)Part Status:ActiveType:TransceiverProtocol:RS232Number of Drivers/Receivers:2/2Duplex:FullData Rate:250kbpsVoltage - Supply:3V ~ 5．5VOperating Temperature:0°C ~ 70°CMounting Type:Surface MountPackage / Case:16-SOIC (0．154" 3．90mm Width)Supplier Device Package:16-SOICReceiver Hysteresis:300mVBase Part Number:MAX3232MAX3232 SchematicMAX3232 vs MAX232MAX232MAX232 is a  single power supply level conversion chip for the RS-232 standard serial port. It uses +5v single power supply. The device is ideal for battery-powered systems due to its low-power shutdown mode, which can reduce power consumption to less than 5uW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 do not require any external components and are ideal for applications with limited printed circuit board space. There is no difference in performance between the two. Differences:MAX232 is powered by 5V voltage, and max3232 is powered by 5V or 3.3V voltage.The power consumption of MAX232 is large, when the supply voltage is 5V, the power consumption is 5mA; while the power consumption of MAX3232 is small, when the supply voltage is 5V or 3.3V, the power consumption is 0.3mA.MAX232 externally connected with four 1uF capacitors; while MAX3232 externally connected with four 0.1uF capacitors.MAX232 general civilian product application; and MAX3232 general military use (such as aerospace and other places with strict power consumption requirements).The price is slightly different.MAX3232 EquivalentThe equivalent ic to MAX3232 is MAX232. Both ICs have the same pin-out and package style, so they are a direct substitute. The main improvement in MAX3232 is that it can support both 3.3V and 5V systems, whereas the predecessor MAX232 could only support 5V systems. As a result, if you are working with a 3.3V system, MAX3232 is a better choice than MAX232 because it avoids the problem of logic level conversion.Where to use MAX3232 icMAX3232 is a TTL/CMOS to RS232 converter. Most of our microcontrollers (PIC/ARM/Atmel) operate on TTL/CMOS logic, which means they communicate via 0V or +5V, whereas our computers use RS232, which operates at logic levels -24V or +24V.  So, in order to connect these microcontrollers to a computer, we must convert the TTL/CMOS logic to RS232 logic. As a result, if you're looking for an IC to perform this conversion and interface a Microcontroller with your computer, this is the one.How to use MAX3232 icThis integrated circuit is simple to set up and use. The IC operates on 3.3V/+5V, so power the Vcc with the required voltage and connect the ground pin to the circuit ground. The IC also requires four capacitors, which can range in value from 1uF to 22uF. The IC can assist you in converting two logic levels, which means you can use two Microcontrollers, but to get started, we will use only one MCU and connect it to a computer; the complete circuit is shown below. Because we are not using the second module, the pins (T2 out, R2 in, T2 in, R2 out) are left free.Every microcontroller that supports serial communication will have a Tx and a Rx pin. These two pins should be connected to the T1 in (pin 10) and R1 out (pin 13) pins. This is the TTL/CMOS logic inputs, and the converter RS232 logic signals can be obtained from R1 in (pin 13) and T1 out (pin 14). You may be wondering how a 3.3V/5V signal is converted to a +25V signal when the IC is powered by 3.3V/5V. This is made possible by a charge pump method, which consists of a capacitor that charges up to provide 25V.MAX3232 ApplicationBattery-Powered SystemsPDAsNotebooksLaptopsPalmtop PCsHand-Held EquipmentMAX3232 PackageComponent DatasheetMAX3232 Datasheet 

NE5532 is a high-performance low-noise dual operational amplifier (dual operational amplifier) integrated circuit. Today, we will walk you into the introduction of the popular dual op amp NE5532, you will learn its pinout, features, application, circuit diagram and its differences with TL072 and more.CatalogNE5532 DescriptionNE5532 PinoutNE5532 FeaturesNE5532 ApplicationsNE5532 vs TL072NE5532 AdvantageNE5532 ParametersNE5532 Circuit DiagramNE5532 AlternativeNE5532 Application CircuitNE5532 PackageNE5532 ManufacturerComponent DatasheetFAQOrdering & QuantityNE5532 DescriptionNE5532 is a high-performance low-noise dual operational amplifier (dual operational amplifier) integrated circuit. Similar to many standard op amps, but NE5532 has the following unique features: better noise performance, excellent output drive capability, relatively high small signal bandwidth, large power supply voltage range, and so on. Therefore, NE5532 is very suitable for high-quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers. In addition, NE5532 has a warm tone and high fidelity when used for audio amplification. It is still one of the essential operational amplifiers in the hands of many audiophiles.NE5532 PinoutNE5532 op ampNE5532 op amp pinout Pin NumberPin NameDescription11OUTOutput21IN-Inverting Input31IN+Noninverting input4VCC-Negative Supply52IN+Noninverting Input62IN-Inverting Input72OUTOutput8VCC+Positive SupplyNE5532 FeaturesEquivalent Input Noise Voltage: 5 nV/√Hz Typ at 1 kHzUnity-Gain Bandwidth: 10 MHz TypCommon-Mode Rejection Ratio: 100 dB TypHigh DC Voltage Gain: 100 V/mV TypPeak-to-Peak Output Voltage Swing 26 V Typ With VCC± = ±15 V and RL = 600 ΩHigh Slew Rate: 9 V/μs TypNE5532 ApplicationsAV ReceiversEmbedded PCsNetbooksVideo Broadcasting and Infrastructure: Scalable PlatformsDVD Recorders and PlayersMultichannel Video TranscodersPro Audio MixersNE5532 vs TL072TL072TL072 is also a very popular op amp, which often used to compare with NE5532, trying to know which one of them is quieter. Well, the NE5532's bipolar transistor inputs draw input current and are not the same as the TL072's JFET inputs, which have no input current. As a result, if the source impedance is extremely low (specified at 20 ohms), the NE5532 is three times quieter.However, when the source impedance is around 18.5k ohms, they have equal noise levels because the input current noise adds to the NE5532's input voltage noise. The TL072 is quieter when the source impedance is greater than about 18.5k. A NE5532 is frequently seen as a phonograph cartridge, tape head, or microphone preamp with a massive input coupling capacitor that takes nearly forever to charge. The large input cap's low impedance keeps the input current noise to a minimum. The NE5532, which has bipolar transistors on its input, has "popcorn" noise below 30Hz, whereas the TL072 has much less. The NE5532 has back-to-back protection diodes on its inputs that cause many circuits to fail, and it consumes significantly more supply current than a TL072.NE5532 AdvantageThe NE5532 device is high-performance operational amplifier combining excellent DC and AC characteristics. It features very low noise, high output-drive capability, high unity-gain and maximum-output-swing bandwidths, low distortion, high slew rate, input-protection diodes, and output short-circuit protection. This operational amplifier is compensated internally for unity-gain operation. This device has specified maximum limits for equivalent input noise voltage.NE5532 ParametersManufacturer:Texas InstrumentsSeries:-Packaging:TubePart Status:ActiveAmplifier Type:General PurposeNumber of Circuits:2Output Type:-Slew Rate:9V/µsCurrent - Input Bias:200nAVoltage - Input Offset:500µVCurrent - Supply:8mACurrent - Output / Channel:38mAVoltage - Supply Single/Dual (±):±5V ~ 15VOperating Temperature:0°C ~ 70°CMounting Type:Through HolePackage / Case:8-DIP (0．300" 7．62mm)Supplier Device Package:8-PDIPBase Part Number:NE5532Gain Bandwidth Product:10MHzNE5532 Circuit DiagramNE5532 AlternativeRC4588, LM358, LM4558, NJM4560, LM258NE5532 Application CircuitThis is a novel OCL power amplifier circuit with bootstrap function, and its circuit principle is shown in the attached drawing. It is composed of NE5532 (other operational amplifiers can also be used) and two high-power NPN transistors. BG1/R4/R5/R6/R7 make up the driving stage, and R4/R7 determines the gain of the subsequent stage circuit. BG2/BG3/D1/D2/R8/R9/C7 constitute the output stage.The characteristic of this circuit is that a certain voltage is applied to the output tube in a static state to make it in a Class A bias state. Such a circuit has low distortion, high power and high efficiency.How to debug: adjust R6 in static state to make BG3 collector voltage 0.6V.　Some applications require differential signals. The Figure below shows a simple circuit to convert a single-ended input of 2 V to 10 V into differential output of ±8 V on a single 15-V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of two amplifiers. One amplifier acts as a buffer and creates a voltage, VOUT+. The second amplifier inverts the input and adds a reference voltage to generate VOUT– . Both VOUT+ and VOUT– range from 2 V to 10 V. The difference, VDIFF, is the difference between VOUT+ and VOUT–.　　NE5532 PackageNE5532 ManufacturerTexas Instruments Inc. (TI)  is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its headquarters are in Dallas, Texas, United States. TI is one of the top ten semiconductor companies worldwide, based on sales volume. Texas Instruments's focus is on developing analog chips and embedded processors, which accounts for more than 80% of their revenue. TI also produces TI digital light processing (DLP) technology and education technology products including calculators, microcontrollers and multi-core processors. To date, TI has more than 43,000 patents worldwide.Component DatasheetNE5532 op amp Datasheet  FAQWhat is NE5532?The NE5532 is a Dual Low Noise Op-Amp in 8-pin package commonly used as amplifiers in audio circuits for its noise immunity and high output drive capability. The Op-Amp is internally compensated for high unity gain with maximum output swing bandwidth, low distortion and high slew rate.How to check NE5532 IC with digital multimeter?Whats the size of NE5532 produced by Texas Instruments? Anything to compare?You will find all physical sizes in inches as well as millimeters in page 19 of the official TI datasheet at:http://www.ti.com/lit/ds/symlink/ne5532.pdfWhat are the features of NE5532?NE5532 is similar to many standard operational amplifiers, but it has the characteristics of better noise performance, excellent output drive capability, high small signal bandwidth, and large power supply voltage range. Therefore, NE5532 is very suitable for high-quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers. 

What is ULN2803?The ULN2803 is a relay driver. The ULN2803 is a relay driver with a Darlington transistor array that can operate at high voltages and currents. The Darlington pairs are connected in a parallel configuration to increase current capability. The component contains eight NPN Darlington pairs with high-voltage outputs and common-cathode clamp diodes that are directly related to switching inductive loads. Each Darlington pair has a collector-current rating of around 500 mA.This blog provides you with a basic overview of the ULN2803 transistor, including its pin descriptions, functions and specifications, alternative products, etc., to help you quickly understand what ULN2803 is. We will be glad to find that this blog can be useful for people loving electronic components.CatalogULN2803 PinoutULN2803 CircuitULN2803 ApplicationsULN2803 FeaturesULN2803 AdvantageULN2803 PackageULN2803 ParametersULN2803 EquivalentsWhere to use ULN2803ULN2803 ManufacturerHow is ULN2803 WorkingComponent DatasheetFAQULN2803 PinoutPin NumberDescriptionBASE CONNECTIONS for DARLINGTON ARRAYs11B-Base of 1st Transistor22B- Base of 2nd Transistor33B- Base of 3rd Transistor44B- Base of 4th Transistor55B- Base of 5th Transistor66B- Base of 6th Transistor77B- Base of 7th Transistor88B- Base of 8th TransistorSHARED TERMINALS9GND- Emitter of all Transistor s10COM- Common cathode (Negative) node for flyback diodes. COLLECTOR CONNECTIONS for DARLINGTON ARRAYs118C-Collector of 8th Transistor127C-Collector of 7th Transistor136C-Collector of 6th Transistor145C-Collector of 5th Transistor154C-Collector of 4th Transistor163C-Collector of 3rd Transistor172C-Collector of 2nd Transistor181C-Collector of 1st TransistorULN2803 CircuitULN2803 Circuit 1ULN2803 Circuit 2ULN2803 ApplicationsULN2803 is widely used in the following applications:Hammer driversDisplay driversLogic BuffersGas & LED dischargerLogic buffersRelay driversLamp driversLine driversULN2803 FeaturesThe specifications, as well as features of ULN2803, are as follow:The allowed maximum voltage between emitter & collector for each and every Darlington transistor is 50 volts.The maximum current that is allowed to flow through the collector of every Darlington pair is 500 mA.Between the emitter and base of the Darlington pair, the maximum voltage that is allowed is 30 volts.In each Darlington pair, a fly-back diode is present and the maximum current that is allowed to pass through that is 500 mA.The rise time is 130 ns.Typically, the fall time is 20micro-second.The operating temperature of ULN2803 lies in the range of -65°C – 150°C.In order to operate this chip, no additional power is needed.ULN2803 AdvantageULN2803 ChipULN2803 is a high-voltage, high-current transistor array IC, especially for microcontrollers that need to drive high-power loads. The IC consists of eight NPN Darlington-connected transistors and a common clamp diode to switch the load connected to the output. This IC is widely used to drive high loads, such as lamps, relays, motors, etc. Its rated current is usually 50v / 500mA.ULN2803 PackageHere we take ULN2803A as an example to introduce ULN2803 package.ULN2803 ParametersDrivers per package8Switching voltage (Max) (V)50Output voltage (Max) (V)50Peak output current (mA)500Delay time (Typ) (ns)130Input compatibilityCMOS, TTLVol @ lowest spec current (Typ) (mV)900Iout/ch (Max) (mA)500Iout_off (Typ) (uA)50RatingCatalog ULN2803 EquivalentsThere are no PIN-to-PIN replacements for ULN2803 but there are similar functioning ICs like ULN2003, ULN2004. You can remodel eight Darligngton Transistors or eight MOSFETs to substitute for ULN2803.Where to use ULN2803The ULN2803 chip can be used in the following cases:To control the inductive loads those are making use of the logic obtained by the control unit. In ULN2803, the Darlington array act as separate 8 individual switches and thus can be turned off and on as desired. Each set of these Darlington pair is capable of driving high power loads that use logic from the control unit.If you are willing to drive multiple loads, then this chip can be used as it is capable of driving eight loads at a time. However, the MOSFETs, as well as transistors that are being used in this chip, will suffice and also placing eight loads at the same time will be a cumbersome job but this chip is widely used in order to replace the bulk switching devices.This chip can also be used for programmable load sharing. if we are having one low power load as well as one high power load then multiple arrays can be connected in parallel in order to drive the high power load.ULN2803 ManufacturerTexas Instruments Inc. (TI)  is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its headquarters are in Dallas, Texas, United States. TI is one of the top ten semiconductor companies worldwide, based on sales volume. Texas Instruments's focus is on developing analog chips and embedded processors, which accounts for more than 80% of their revenue. TI also produces TI digital light processing (DLP) technology and education technology products including calculators, microcontrollers and multi-core processors. To date, TI has more than 43,000 patents worldwide.How is ULN2803 WorkingThe ULN2803 IC consists of eight NPN Darlington pair which provides the proper current amplification required by the loads. We all know that the transistors are used to amplify the current but here Darlington transistor pairs are used inside the IC to make the required amplification.A Darlignton pair is two transistors that act as a single transistor providing high current gain. In this pair the current amplified by the first transistor is further amplified by the next transistor providing high current to the output terminal.When no base voltage is applied that when is no signal is given to the input pins of the IC , there will be no base current and transistor remains in off state. When high logic is fed to the input both the transistors begin to conduct providing a path to ground for the external load that the output is connected. Thus when an input is applied corresponding output pin drops down to zero there by enabling the load connected to complete its path.Component DatasheetULN2803A DatasheetFAQWhat is ULN2803?ULN2803 is a high-voltage and high-current Darlington transistor array and is mainly used as a relay driver with an ability to handle 8 relays at a time.It comes with a collector-emitter voltage around 50 V and input voltage residing at 30 V.What is the use of ULN2803 in driving a relay?Explanation: We need a ULN2803 for driving a relay because the relay coil requires 10mA or more current to be energized. If microcontroller pins are not able to provide sufficient current to drive relays then we need ULN2803 for driving relays.How do you use ULN2803?ULN2803 is a High voltage, high current Transistor Array IC used especially with Microcontrollers where we need to drive high power loads. Thic IC consists of a eight NPN Darlington connected transistors with common Clamp diodes for switching the loads connected to the output. 

CatalogWM8731 DescriptionWM8731 Related Video InstructionWM8731 CAD ModelsWM8731 Pin ConfigurationWM8731 Block DiagramWM8731 FeaturesWM8731 ApplicationsWM8731 DatasheetWM8731 SpecificationsWM8731 ManufacturerUsing WarningWM8731 FAQWM8731 DescriptionThe WM8731 or WM8731L (WM8731/L) are low power stereo CODECs with an integrated headphone driver. The WM8731/L is designed specifically for portable MP3 audio and speech players and recorders. The WM8731 is also ideal for MD, CD-RW  machines and DAT  recorders. Stereo line and mono microphone level audio inputs are provided, along with a mute function, programmable line level volume control and a bias voltage output suitable for an electret type microphone. Stereo 24-bit multi-bit sigma delta ADCs and DACs are used with oversampling digital interpolation and decimation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. The device is available in a small 28-lead SSOP package or the smaller 28 lead quad flat leadless package (QFN). WM8731 Related Video InstructionVideo: WM8731 with Rpi4(Audio Playback & Record Loopback)WM8731 Video Description:Here, we have WM8731 audio codec from Wolfson Microelectronics, successfully interfaced on I2C with Rpi4. WM8731 Driver & Device tree overlay support were added & implemented for the same. WM8731 provides HPOut/LineOut & has internal HPOut Amplifier along with LineOut. Here in this module, HPOut is exposed. Alongside, LineIn/MICIn is also provided, along with ADC oversampling/decimation filters support. Here, in this demonstration, I have used MICIn. LineIn or MICIn can be selected & configured by programming internal register. WM8731 CAD Models Figure: PCB Symbol  Figure: Footprint  Figure: 3D Model WM8731 Pin Configuration Figure: Pin Configuration WM8731 Block Diagram Figure: Block Diagram WM8731 FeaturesHighly Efficient Headphone DriverAudio Performance        - ADC SNR 90dB (‘A’ weighted) at 3.3V, 85dB at 1.8V        - DAC SNR 100dB (‘A’ weighted) at 3.3V, 95dB at 1.8VLow Power        - Playback only 22mW, 8mW (‘L’ Variant)        - Analogue Pass Through 12mW, 3.5mW (‘L’ variant)        - 1.42 – 3.6V Digital Supply Operation        - 2.7 – 3.6V Analogue Supply Operation        - 1.8 – 3.6V Analogue Supply Operation (‘L’ Variant)ADC and DAC Sampling Frequency: 8kHz – 96kHzSelectable ADC High Pass Filter2 or 3-Wire MPU Serial Control InterfaceProgrammable Audio Data Interface Modes        - I2S, Left, Right Justified or DSP        - 16/20/24/32 bit Word Lengths        - Master or Slave Clocking ModeMicrophone Input and Electret Bias with Side Tone MixerAvailable in 28-lead SSOP or 28-lead QFN package WM8731 ApplicationsPortable MP3 Players and RecordersCD and Minidisc RecordersPDAs / smartphones WM8731 DatasheetYou can download the datasheet of WM8731 from the link given below.WM8731-Datasheet WM8731 SpecificationsProduct Category:Interface - CODECsProduct:Audio CODECsType:Audio CODEC, StereoResolution:24 bitConversion Rate:96 kHzInterface Type:Serial (2-Wire, 3-Wire)Number of ADCs:2 ADCNumber of DACs:2 DACOperating Supply Voltage:1.8 V to 3.6 VMinimum Operating Temperature:- 40 CMaximum Operating Temperature:+ 85 CMounting Style:SMD/SMTPackage / Case:SSOP-28Packaging:ReelPackaging:Cut TapePackaging:MouseReelManufacturer:Cirrus LogicMoisture Sensitive:YesProduct Type:CODECsSeries:WM8731SNR - Signal to Noise Ratio:90 dB ADC/100 dB DACFactory Pack Quantity:2000Subcategory:Interface ICsSupply Voltage - Max:3.6 VSupply Voltage - Min:1.8 VUnit Weight:0.025045 oz WM8731 ManufacturerCirrus Logic Inc. is an American fabless semiconductor supplier that specializes in analog, mixed-signal, and audio DSP integrated circuits (ICs). Since 1998, the company's headquarters have been in Austin, Texas. Using WarningNote: Please check their parameters and pin configuration before replacing them in your circuit. WM8731 FAQWhat is the WM8731 designed specifically for?Portable MP3 audio and speech players and recorders. What are used with oversampling digital interpolation and decimation filters?24-bit multi-bit sigma delta ADCs and DACs. What are line level outputs provided along with?Anti-thump mute and power up/down circuitry. What is an example of codec?Codecs are compression technologies and have two components, an encoder to compress the files, and a decoder to decompress. There are codecs for data (PKZIP), still images (JPEG, GIF, PNG), audio (MP3, AAC) and video (Cinepak, MPEG-2, H. 264, VP8). What are codecs used for?Codec, abbreviation of coder-decoder or compression-decompression, a standard used for compressing and decompressing digital media, especially audio and video, which have traditionally consumed significant bandwidth.