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المنتجات (39,000+)

DG442DK - 85 Ohm Quad SPST Analog Switch | Maxim Integrated | 16-CDIP
DG442DK

DG442DK - 85 Ohm Quad SPST Analog Switch | Maxim Integrated | 16-CDIP

The Maxim Integrated DG442DK is a quad SPST analog switch IC with 85 ohm maximum on-resistance, 500 pA off-leakage current and 250 ns turn-on time, packaged in a 16-pin ceramic DIP (16-CDIP, 0.300 inch / 7.62 mm lead pitch). It provides four independent single-pole single-throw switches in a 1:1 configuration, each able to route a bipolar analog signal, and operates from a 15 V supply. What is an analog switch? An analog switch is a solid-state semiconductor device that steers analog signals between circuit nodes under digital control, with no moving contacts and near-zero off-state signal transfer. A single-pole single-throw (SPST) analog switch provides one conducting path that is opened or closed, and a quad SPST device like the DG442DK implements four such paths on one die. In the product hierarchy, an analog switch sits within analog multiplexers and demultiplexers, inside interface ICs, within the broader family of integrated circuits and semiconductors. The DG442DK is a discrete-control (no logic-enable) version, so each of the four paths is driven by its own external control signal. Key features of the DG442DK include a maximum on-resistance of 85 ohm with on-resistance matching between switches guaranteed to 4 ohm maximum, and on-resistance flatness over the signal range guaranteed to 9 ohm maximum. The matched and flat resistance characteristics mean all four channels attenuate the same signal equally, which is what makes the device usable in balanced multi-channel paths rather than only in single-channel routing. Off-leakage current of 500 pA keeps the off state effectively open for high-impedance sources, and the switch conducts equally well in either signal direction. The Maxim Integrated DG441/DG442 family was redesigned around improved on-resistance matching and guaranteed on-resistance flatness over the signal range, replacing older revision behavior where channel-to-channel Ron could drift more widely. Switching times of 250 ns turn-on and 170 ns turn-off place the part in the general-purpose, medium-speed class rather than the sub-10 ns RF or ultra-fast video switch categories, which keeps on-resistance and leakage low while remaining inexpensive and easy to drive from standard logic. Typical applications include signal multiplexing in automated test and measurement equipment, audio and instrumentation channel selection, sample-and-hold and guarded-input amplifier front ends, and battery-powered sensor interface boards where the 500 pA off leakage protects the source from loading. Because the switches are independent, four different signal paths can be routed simultaneously to four different destinations. One key design consideration is that each switch has no on-board enable logic, so control drive levels and timing are entirely set by the host logic. Because the ceramic DIP package provides long leads, it also tolerates higher applied signal voltages relative to the 15 V supply in many analog-routing applications, but the signal range must always remain inside the absolute maximum ratings given in the manufacturer datasheet. This page consolidates package details, switching characteristics, drop-in source options and practical layout guidance for the DG442DK, adding engineering context that is not present in the raw manufacturer datasheet listings.

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DG444CJ+ - 4-Channel SPST Analog Switch | Analog Devices
DG444CJ+

DG444CJ+ - 4-Channel SPST Analog Switch | Analog Devices

The Analog Devices DG444CJ+ is an improved quad SPST analog switch with four independently controlled channels, an 85 ohm maximum on-resistance, and a 16-pin PDIP package. It is designed for low-power analog signal routing and supports positive supplies from 10 V to 30 V and dual supplies from ±4.5 V to ±20 V according to the manufacturer datasheet. The normally closed configuration routes the selected external signal to the common terminal when the corresponding control input is low. An analog switch is a semiconductor device that connects or disconnects signal paths under digital control. The DG444CJ+ belongs to the analog switch hierarchy, where analog switches form part of interface ICs used for routing, sampling, test, measurement, and communication signals. Its quad-channel architecture allows four switches to share one IC while retaining individual control signals, reducing component count compared with four discrete single-channel switches. The redesigned DG444 family provides low on-resistance matching between switches of 4 ohm maximum and guaranteed on-resistance flatness over the signal range of 9 ohm maximum. These characteristics help minimize channel-to-channel resistance variation and distortion when multiple signals share the same switching network. The 85 ohm maximum on-resistance rating also makes the device suitable for circuits where moderate insertion resistance is acceptable. Each channel is configured as SPST, normally closed, and the switches conduct equally well in either signal direction. The symmetric behavior makes the DG444CJ+ useful when source and destination may swap roles, provided the designer accounts for the device's power dissipation and off-state isolation. The 16-pin PDIP package also favors through-hole prototyping, inspection, and socket-based assembly rather than compact surface-mount production. Typical uses include sample-and-hold systems, instrumentation, industrial control, communications equipment, test equipment, and audio or measurement signal routing. The DG444CJ+ is most appropriate when four independently controlled normally closed paths are required and an 85 ohm maximum on-resistance is sufficient for the application. For designs requiring lower resistance, smaller size, faster switching, or a different fault configuration, the system requirements should be checked against other analog-switch families rather than assuming pin compatibility. When laying out a design, keep sensitive signal paths short and provide adequate bypassing near the supply pins. Check the control-logic truth table, allowed input voltage range, and maximum switch current from the manufacturer datasheet. Because the device dissipates power as (VIN - VOUT) multiplied by current in the conducting state, analyze both channel and package heating at worst-case current. This page combines verified manufacturer and distributor information with pricing, package guidance, replacement analysis, and practical design notes to support component selection and PCB planning.

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DG444DJ+ - Quad SPST Analog Switch, 85 ohm, 16-DIP
DG444DJ+

DG444DJ+ - Quad SPST Analog Switch, 85 ohm, 16-DIP

The Analog Devices DG444DJ+ is a quad SPST CMOS analog switch with four independent normally open switches, an 85 ohm maximum on-resistance, and a 16-pin PDIP package. The device supports positive and negative supply voltages from ±4.5 V to ±20 V, corresponding to a 10 V to 30 V total supply range, and operates across the industrial temperature range. Its four channels can route bipolar analog signals while TTL- and CMOS-compatible control inputs simplify interfacing with digital control logic. An analog switch is a solid-state semiconductor device that connects or isolates circuit nodes under digital control. The DG444 belongs to the CMOS analog-switch family within the broader interface-IC hierarchy. Unlike mechanical relays, it operates without moving contacts, allowing faster switching, compact integration, and low control-power consumption. This quad SPST arrangement is useful wherever several independent analog paths must be sampled, routed, or isolated. Key features include four independent SPST channels, low on-resistance, low leakage, fast switching, low power consumption, and TTL/CMOS-compatible logic inputs. According to the manufacturer datasheet, the on-resistance matching between switches is limited to 4 ohms maximum, while guaranteed on-resistance flatness across the signal range is limited to 9 ohms maximum. These characteristics improve channel-to-channel consistency and reduce gain variation when the same switch type is used in multiple signal paths. The DG444 family is built to provide predictable operation in precision analog systems. On-resistance matching limits channel mismatch, while low leakage helps preserve weakly driven signals when a channel is disconnected. Fast switching action supports measurement, test, and sampling systems in which the control system must select a new source quickly. Because the switches are CMOS devices, control inputs can operate from standard digital logic families, allowing a microcontroller or programmable logic device to manage channel selection. Typical uses include sample-and-hold circuits, test and measurement systems, multiplexed instrumentation, battery-powered test equipment, and signal-routing modules. The four normally open switches can independently connect an external analog node to one of four internal or external destinations. In bidirectional signal paths, the switch conducts equally well in either direction, which supports measurement and audio-oriented circuits where the signal source may change. For PCB design, place the DG444DJ+ close to the routed analog nodes to minimize trace capacitance and pickup. Keep high-impedance paths short, provide a stable ground reference, and route digital control traces away from sensitive analog inputs. Check supply decoupling at the IC and ensure control signals remain within the datasheet limits during power-up and power-down. This page combines the DG444 family specifications, verified source links, same-package drop-in candidates, application guidance, and design considerations to help engineers evaluate the DG444DJ+ before integrating it into a new analog-routing design.

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DG444DY+ - 85 Ohm Quad SPST CMOS Analog Switch | Maxim
DG444DY+

DG444DY+ - 85 Ohm Quad SPST CMOS Analog Switch | Maxim

The Maxim Integrated DG444DY+ is a quad SPST CMOS analog switch with a maximum on-resistance of 85 ohm, four independent switch channels, and a 250 ns maximum on-time. The device is packaged in a 16-pin SOIC and uses TTL- and CMOS-compatible control inputs. Its four switches can route one analog or digital signal independently in either direction. An analog switch is a solid-state routing element that connects or disconnects signal paths under digital control. The DG444 belongs to the interface IC hierarchy, where analog switches sit above multiplexers, demultiplexers, and general-purpose signal-routing components. Unlike a mechanical relay, the DG444DY+ has no moving contacts, allowing fast switching, low power consumption, and compact integration into analog measurement, test, and communication equipment. Important DG444DY+ features include low on-resistance, low leakage, low power consumption, and low charge injection. According to the Vishay DG444 data sheet, the DG444 and DG445 families use a high-voltage silicon-gate process, while an epitaxial layer helps prevent latchup. The redesigned DG444 series also specifies on-resistance matching between switches of 4 ohm maximum and guaranteed on-resistance flatness of 9 ohm maximum over the signal range. The DG444DY+ contains four independent single-pole, single-throw switches. Each channel can conduct signal flow in either direction, allowing the same device to implement signal selection, source multiplexing, sample-and-hold routing, test-point isolation, and programmable gain-stage feedback control. Its monolithic CMOS construction supports compact, low-power designs, while the 16-pin SOIC package allows conventional surface-mount assembly and straightforward PCB footprint matching with compatible quad-SPST switch families. Typical uses include multimeter and oscilloscope input routing, automated test equipment, audio path selection, data acquisition systems, and instrumentation where several analog nodes must connect to a shared measurement path. The DG444DY+ is also appropriate where TTL-compatible or CMOS-compatible control levels are available and where switching speed and low off leakage are more important than very low on-resistance. When laying out a DG444DY+ circuit, place the device close to the switched signal nodes to minimize parasitic capacitance and coupling. Keep control traces away from sensitive analog conductors, use a defined return path for digital control signals, and confirm the actual signal amplitude against the device's absolute maximum ratings. Verify the exact power-supply and signal-range limits in the manufacturer data sheet before applying the part to a new design. This page combines verified manufacturer and distributor information, package-level drop-in alternatives, a parameter comparison, and practical PCB guidance. It is intended to help engineers evaluate the DG444DY+ faster than by reading the datasheet alone, while clearly separating documented values from specifications that still require confirmation.

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DG445CJ+ - 85Ω Quad SPST Analog Switch | Analog Devices
DG445CJ+

DG445CJ+ - 85Ω Quad SPST Analog Switch | Analog Devices

Analog Devices DG445CJ+ is an improved quad, single-pole single-throw analog switch with four independent 1:1 signal paths, 85Ω nominal on-resistance, and a 16-pin PDIP package. The device provides matched switch behavior through a maximum on-resistance matching specification of 4Ω and guaranteed on-resistance flatness of 9Ω maximum across the signal range, making it useful in precision analog routing systems. An analog switch is an integrated interface circuit that routes electrical signals between input and output terminals under digital control. The DG445 belongs to the analog-switch hierarchy, which also includes multiplexers, selectors, and signal-routing ICs. Unlike a mechanical relay, an analog switch changes connection state electronically with no mechanical movement. The DG445CJ+ combines four SPST switches in one package for applications requiring several independently controlled analog paths. Key features include four 1:1 switching circuits, an 85Ω nominal on-resistance, low on-resistance variation between switches, and controlled flatness over the operating signal range. The 16-pin PDIP format supports conventional through-hole PCB assembly and is appropriate for prototypes, legacy equipment, and industrial control boards where a surface-mount package would complicate rework. The Analog Devices product page identifies the DG445 family as production-grade and describes its redesigned switch matching characteristics. The matched on-resistance specification reduces channel-to-channel gain variation when identical signals are routed through different switches. A maximum matching of 4Ω and flatness of 9Ω are particularly relevant when the same measurement or control path must behave consistently across multiple inputs. These characteristics can simplify calibration and improve repeatability in data-acquisition, test-equipment, and control systems. Typical applications include sensor-signal routing, sample-and-hold front ends, instrumentation multiplexing, industrial control interfaces, and precision measurement systems. Four independent SPST switches allow one controller to select test paths, isolate stages, or route external analog signals without changing the printed-circuit-board layout. The device is especially useful where four similar channels must have closely matched resistance behavior. PCB design should preserve the pin assignments and pin numbering defined by the manufacturer datasheet. Because the package is a PDIP-16, adequate lead spacing and through-hole clearance are required, while analog input and output routing should minimize coupling from adjacent switching or digital-control nets. The control inputs should be driven with compatible logic levels, and unused or inactive channels should be configured according to the device data sheet. This product page combines the DG445CJ+ configuration, package information, matched-resistance characteristics, application guidance, and cross-reference analysis with practical design context. It supports faster part selection by showing where the quad SPST architecture fits and where a verified drop-in substitute may be appropriate.

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DG445DJ+ - Quad SPST 85 Ohm Analog Switch | Analog Devices
DG445DJ+

DG445DJ+ - Quad SPST 85 Ohm Analog Switch | Analog Devices

The Analog Devices DG445DJ+ is a production, quad, single-pole single-throw CMOS analog switch with four independent normally open switches, an 85 ohm on-resistance rating, TTL- and CMOS-compatible control inputs, and a 16-pin PDIP package. The device is designed for low-voltage signal routing where four separately controlled analog paths must be switched without introducing substantial resistance or signal degradation. An analog switch is a semiconductor device that uses digital control signals to connect or disconnect an analog signal path. The DG445DJ+ belongs to the interface-IC hierarchy as a monolithic CMOS analog switch. Its four independent SPST channels provide normally open behavior, allowing a control signal to establish a signal connection while the open state provides high isolation between routed nodes. The verified manufacturer information identifies the DG445 family as an improved replacement for the DG211 and DG212 series. It provides four independent switches, TTL- and CMOS-compatible digital inputs, on-resistance matching of 4 ohms maximum between switches, and guaranteed on-resistance flatness of 9 ohms maximum across the signal range. The distributor listing specifies an 85 ohm nominal on-resistance, while a legacy data listing reports 50 ohms; the 85 ohm figure is used for the DG445DJ+ procurement description. The improved matching and flatness specifications are significant when several DG445DJ+ channels carry signals that must present similar resistance to downstream circuitry. Flatness limits resistance variation as the analog voltage changes, helping preserve gain and timing consistency across the signal range. The monolithic CMOS implementation supports compact analog-routing designs without requiring four discrete mechanical or relay elements. Typical uses include battery-powered measurement systems, automated test equipment, multiplexed sensor interfaces, audio routing, sample-and-hold circuits, and communication equipment. Each of the four switches has its own control input, allowing independent routing decisions rather than requiring a shared address decoder. The 16-pin PDIP package is suitable for prototyping, legacy industrial equipment, and through-hole assemblies. The principal design consideration is that this older PDIP device is identified as RoHS non-compliant and contains lead. It should therefore be selected for compatible legacy or through-hole applications where regulatory and thermal requirements permit, rather than assumed suitable for new lead-free production without formal review. This product record combines verified manufacturer and distributor specifications, lifecycle information, pricing, package details, and practical selection guidance. It also distinguishes confirmed drop-in information from unsupported substitute claims, helping engineers avoid cross-package parts that would require PCB changes.

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DG445DY+ - Quad SPST Analog Switch | Maxim Integrated
DG445DY+

DG445DY+ - Quad SPST Analog Switch | Maxim Integrated

Maxim Integrated DG445DY+ is an improved quad SPST analog switch with four independent normally open channels, an 85 Ω on-resistance, and a 16-pin NSOIC package. It supports a 10 V to 30 V supply range, equivalent to ±4.5 V to ±20 V dual-supply operation, and provides TTL-compatible control inputs with specified 0.8 V and 2.4 V logic thresholds. An analog switch is a semiconductor device that routes analog or digital signals between circuit nodes under control of digital logic. The SPST designation means each of the four channels has one signal terminal and one switched terminal, while the normally open configuration leaves each channel disconnected until its control input is asserted. Within the broader hierarchy, DG445DY+ is an analog switch, interface IC, and discrete signal-routing component used between sensors, converters, test circuits, and signal-processing stages. Key improvements include on-resistance matching of 4 Ω maximum between switches and on-resistance flatness of 9 Ω maximum over the signal range. These characteristics help minimize channel-to-channel variation when the four switches must process comparable signals. The 85 Ω on-resistance reported by DigiKey and the 160 Ω figure shown by FindIC are retained as sourced observations, while the improved flatness specification is especially relevant to precision acquisition and test-equipment signal paths. The DG445 family was designed on a high-voltage silicon-gate CMOS process. Silicon-gate construction supports low leakage and reliable operation across wide supply voltages, while CMOS control inputs allow the device to interface with both TTL and CMOS logic systems. The manufacturer documentation identifies low signal error and distortion, reduced power-supply requirements, faster throughput, improved reliability, reduced pedestal errors, and simple interfacing as device benefits. Typical uses include audio switching, battery-powered systems, data acquisition, sample-and-hold circuits, telecommunications, automatic test equipment, and single-supply circuits. A four-channel SPST arrangement is particularly useful when several independent analog paths must be connected or isolated under digital control, such as selecting external sensors or routing instrumentation signals. Designers should verify the applicable supply configuration, control levels, and signal-voltage limits before layout. Keeping sensitive analog traces short and connecting the device ground pins to a low-impedance ground plane helps control return currents. Because on-resistance and matching are circuit-level errors, the switch should not be treated as an ideal zero-resistance path during signal-chain calculations. This page consolidates manufacturer information, distributor pricing, source-backed electrical characteristics, drop-in candidate evaluation, and practical selection guidance. It also distinguishes verified values from specifications that require confirmation, helping engineers compare DG445DY+ with its closest package-compatible alternatives without assuming unreported electrical data.

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DG468DV-T1-E3 - 9Ω SPST-NO Analog Switch | Vishay | TSOP-6
DG468DV-T1-E3

DG468DV-T1-E3 - 9Ω SPST-NO Analog Switch | Vishay | TSOP-6

The Vishay Siliconix DG468DV-T1-E3 is a low-power, high-voltage SPST (single-pole single-throw) normally-open analog switch with 9 ohm typical on-resistance, housed in a 6-lead TSOP (SOT-23-6 footprint) surface-mount package. An analog switch is a solid-state semiconductor device that routes or blocks analog signal paths under digital logic control. In the signal-chain hierarchy, analog switches sit between passive relays and multiplexer ICs: they belong to the broader family of analog multiplexers/switches, which themselves are interface and signal-routing components within mixed-signal power and signal management. Unlike electromechanical relays, CMOS analog switches offer microsecond switching, no coil drive, and effectively unlimited mechanical life. Key features of the DG468 include its wide supply range: operation from a single +7 V to +36 V supply or dual ±4.5 V to ±20 V supplies, enabling signal switching on high-voltage rails common in industrial systems. On-resistance is a low 9 ohms, and the device is a normally-open (NO) configuration, meaning the switch is open when the logic control input is low. Power consumption is very low, supporting battery-powered and low-standby-power designs. The DG468 is fabricated in a CMOS process and belongs to Vishay's DG467/DG468 family: the DG467 is the normally-closed complement, while the DG468 is normally open; both share the same die technology, package, and control interface, simplifying board reuse. The small TSOP6 package with a standard SOT-23-6 footprint (approximately 1.8 mm x 1.4 mm body, 2.9 mm x 1.6 mm outline per SOT-23 family conventions) fits dense layouts. Typical applications include audio and video signal routing, industrial PLC I/O modules, battery-management and test-equipment signal selection, communication-line switching on 24 V rails, and hot high-voltage analog front ends that exceed the range of standard 5 V switches. When designing with this switch, respect the absolute maximum signal range relative to the supply pins: the analog signal must never exceed V+ or go below V-, or internal ESD structures will conduct and can damage the die. This page synthesizes distributor pricing and availability, drop-in alternatives within the DG467/DG468 family, and practical design notes not found in the manufacturer datasheet.

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DG485DJ - 8-Channel SPST Analog Switch Array | Vishay
DG485DJ

DG485DJ - 8-Channel SPST Analog Switch Array | Vishay

Vishay Intertechnology DG485DJ is an octal analog switch array containing eight single-pole, single-throw switches connected to a common output. The device supports analog multiplexing in serial-control systems, with any combination of the eight switches able to close simultaneously. It is specified in a 16-DIP package with an 85 ohm maximum on-resistance, 55 ohm typical on-resistance, and a typical turn-on time of 170 ns. An analog switch array is a group of electronically controlled switches used to route analog signals under digital control. The DG485DJ belongs to the analog switch IC hierarchy, where individual SPST switches share a common output and can be addressed through a serial interface. This arrangement reduces the number of external connections required when several sources must be selected, particularly in data-acquisition, audio-routing, test, and instrumentation systems. The DG485DJ provides a rail-to-rail analog input range, TTL- and CMOS-compatible control signals, low signal distortion, and the ability to chain devices. Its low on-resistance helps limit signal attenuation when a switch is closed, while the 170 ns typical turn-on time supports higher-speed routing than slower electromechanical switches. Low-power operation further suits systems in which multiple switched paths must be present without continuously consuming substantial power. Typical uses include eight-channel analog multiplexing, audio signal routing, data acquisition, process-control interfaces, and automated test systems. In a multiplexer arrangement, the DG485DJ selects one or more of eight input sources for connection to the common output. Designers should account for signal amplitude, source impedance, logic levels, switching transients, and the bandwidth limitations associated with the selected on-resistance when planning signal paths. The 16-DIP package favors through-hole prototyping, legacy control systems, and applications that value straightforward inspection or rework. Layout guidance should keep sensitive analog traces away from high-current switching paths, place suitable bypassing near the supply pins, and follow the manufacturer's pin-description table when assigning control and signal connections. This page consolidates the device architecture, verified electrical characteristics, application guidance, package information, and engineering considerations needed to evaluate the DG485DJ for an eight-channel multiplexing or routing design.

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DLP4500 - 0.45 WXGA DMD | Texas Instruments | Spatial Light Modulator
DLP4500

DLP4500 - 0.45 WXGA DMD | Texas Instruments | Spatial Light Modulator

The DLP4500 from Texas Instruments is a digitally controlled MOEMS (micro-opto-electromechanical system) spatial light modulator (SLM) featuring a 0.45-inch (11.43 mm) diagonal micromirror array of aluminum, micrometer-sized mirrors. With a 7.6-µm micromirror pitch and ±12° micromirror tilt angle, it delivers high-resolution pattern steering for visible light applications. The device is designed to work with the DLPC350 controller, which coordinates mirror reset pulses and image data loading. A digital micromirror device (DMD) is an array of microscopic mirrors that reflect light to create patterns or images. Each mirror represents one pixel and can be tilted between two states to modulate light. DMDs are the core of DLP projection technology and are used in spatial light modulation for structured light, 3D scanning, and optical patterning. The DLP4500 is a WXGA (912 × 1140) array, offering high resolution in a compact form factor. Key features include a 912 × 1140 micromirror array, 7.6-µm mirror pitch, ±12° tilt angle, and support for a 30-bit parallel RGB interface for image data transfers. The device operates with a DLPC350 controller and requires proper generation of PWRGOOD and POSENSE inputs for reliable operation. The DLP4500 is available in a 98-pin LCCC package (20.7 × 9.1 mm) and is designed for visible light applications. The DLP4500 uses a MEMS (micro-electromechanical systems) architecture where each micromirror is electrostatically actuated. The mirrors are arranged in a 912 × 1140 array with a uniform band of border micromirrors that are not user-addressable. The device supports high-speed pattern rates, making it suitable for applications requiring fast light modulation. The DLPC350 controller generates internal mirror reset pulses, ensuring precise timing. Typical applications include 3D scanning and measurement, structured light for machine vision, augmented reality, and optical patterning. The DLP4500 is also used in medical imaging and spectroscopy. Its high resolution and fast switching make it ideal for industrial and scientific applications where precise light control is essential. When designing with the DLP4500, ensure proper thermal management and signal integrity. The device requires a clean power supply and careful PCB layout to minimize noise. The DLPC350 controller must be configured correctly to achieve optimal performance.

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DLPC3479CZEZ - DLP Controller for DLP4710LC | Texas Instruments
DLPC3479CZEZ

DLPC3479CZEZ - DLP Controller for DLP4710LC | Texas Instruments

The Texas Instruments DLPC3479CZEZ is a DLP display and light controller for the DLP4710LC (0.47-inch 1080p) digital micromirror device (DMD), supplied in a 201-ball NFBGA (ZEZ) package measuring 13 mm x 13 mm. It provides high-speed, precision interface and steering between system electronics and the DMD for video display and light control applications, including 2xDLPC3479 dual-controller configurations. The device operates over the industrial -30C to +85C temperature range and is qualified for display and projection designs requiring pixel-accurate DMD control. A DLP controller (Digital Light Projection controller) is a mixed-signal ASIC that orchestrates illumination timing, micromirror bit-planes, video processing, and host command interface for a DLP digital micromirror device (DMD). DLP controllers sit at the apex of the DLP chipset hierarchy (DLP controller -> DMD driver -> DMD -> optical engine -> display system), and are required to bring up, sequence, and continuously refresh the MEMS micromirror array while maintaining pixel-level color and brightness accuracy across frame rates. Key features include support for the DLP4710LC 0.47-inch 1080p DMD, an integrated ARM Cortex host-side interface, integrated illumination driver interface, and high-speed DMD data path with deterministic latency. The device supports video display and light steering modes commonly used in industrial projection, 3D printing, 3D machine vision, and spectroscopy, while the 201-ball NFBGA provides the routing density required for the parallel DMD data bus at full HD resolution. The DLPC3479 uses a programmable microcontroller subsystem to manage DMD load, micromirror reset sequences, LED/laser light source timing, and host command protocol over I2C or SPI. The 2xDLPC3479 dual-controller topology (referenced in the TI datasheet) supports higher resolution or higher brightness configurations by pairing two controllers with a single DMD, enabling synchronized bit-plane generation for light control applications such as structured light, mask-less lithography, and exposure systems. Typical applications include 1080p portable projectors, industrial inspection cameras, structured-light 3D scanners, 3D printers, head-up displays, and medical imaging systems. The DLP4710LC chipset is also widely used in AR glasses, near-eye displays, and head-mounted displays where the small 0.47-inch panel format and DLP's high fill factor enable compact optical engines. When designing with this device, ensure the PCB layout follows the TI NFBGA-201 escape pattern and that the DMD high-speed data bus is length-matched per the DLPC3479 datasheet guidelines. The DLPC3479 must be paired with the DLP4710LC DMD; it is not a generic DLP controller and cannot be substituted with DLPC34xx controllers intended for other DMDs without re-validating the full chipset configuration and firmware load. This page synthesizes the TI DLPC3479 datasheet, current DigiKey/Mouser pricing as of 2026-10-07, drop-in alternatives within the DLP4710LC family, and practical design notes not found in the manufacturer datasheet alone.

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DLPC6540ZDC - 4K UHD DLP Display Controller for DLP471TP DMD | TI
DLPC6540ZDC

DLPC6540ZDC - 4K UHD DLP Display Controller for DLP471TP DMD | TI

The Texas Instruments DLPC6540ZDC is a DLP display controller for the DLP471TP (0.47-inch 4K UHD) digital micromirror device (DMD), housed in a 201-pin NFBGA (13x13 mm) package. The DLPC6540 controller, working in concert with the DLP471TP DMD and the DLPA3005 power management IC (PMIC), forms a complete 4K UHD display chipset targeting high-resolution and high-brightness systems in a compact optical engine footprint. A DLP display controller is the digital signal-processing and sequencing hub of a TI DLP chipset. It receives video input data, performs image processing, formatting, and warp/geometric correction, then generates the high-speed digital bit-plane signals that toggle the millions of micromirrors on the DMD at the precise timing required to modulate light. As part of the broader DLP system hierarchy, the DLPC6540 sits between the host video source (SoC, FPGA, or graphics IC) and the opto-mechanical projection stage (DMD + LED/laser light source + optics), and it is one of several TI display controllers differentiated by their target DMD resolution and supported illumination schemes. Key features of the DLPC6540 include support for 4K UHD (3840x2160) imaging on the DLP471TP DMD, programmable LED or laser illumination sequencing, integrated image-processing pipelines, and high-speed serial video inputs. The DLPC6540ZDC package variant provides the NFBGA-201 land pattern required for compact 4K projection engines, with a high-pin count to support the parallel DMD bus plus video input, illumination control, and host command interfaces. Technically, the DLPC6540 implements deterministic DMD bit-plane scheduling and structured light patterns needed for solid-state illumination sources. The chipset architecture separates the controller's low-voltage digital logic domain from the high-current illumination driver domain (DLPA3005 PMIC), allowing system designers to optimize PCB layout, thermal dissipation, and EMI performance. Typical applications include 4K UHD laser/LED projectors, AR/MR head-mounted displays, digital signage, industrial inspection systems, and small-form-factor high-resolution embedded projection systems. Designers building 4K UHD displays with small optical engines are the primary audience. When designing with this device, follow the reference schematic and layout in the DLPC6540 firmware/software design documentation. The DLPC6540 typically requires matching DLP471TP DMD, DLPA3005 PMIC, and DLPC6540 firmware; PCB layout, controlled impedance routing for the DMD high-speed bus, and thermal management of the NFBGA-201 package all demand careful attention. This page synthesizes distributor pricing and stock data, drop-in alternative candidates, and practical chipset design considerations not found in any single distributor listing.

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DM74LS138N - 3-to-8 Line Decoder/Demultiplexer, LS-TTL, 16-PDIP | onsemi
DM74LS138N

DM74LS138N - 3-to-8 Line Decoder/Demultiplexer, LS-TTL, 16-PDIP | onsemi

The onsemi (formerly Fairchild) DM74LS138N is a 3-to-8 line decoder/demultiplexer built on Schottky-clamped Low-power Schottky (LS) TTL technology, packaged in a 16-pin PDIP through-hole format. The device accepts three binary-weighted address inputs (A, B, C) and provides eight active-LOW mutually exclusive outputs (Y0-Y7), along with three enable inputs (G1, G2A, G2B) that allow cascading or address expansion. According to the manufacturer datasheet, it is designed for high-performance memory-decoding and data-routing applications requiring very short propagation delay times. A decoder/demultiplexer is a combinational logic IC that translates a binary address on its inputs into a single selected output line. In its canonical role, the '138' family member accepts 3 address bits and activates exactly one of 8 outputs, which is why it is commonly referred to as a 1-of-8 decoder. It belongs to the broader hierarchy: decoder/demultiplexer -> combinational logic -> logic IC -> digital IC -> integrated circuit -> semiconductor. Common synonyms include '3-line to 8-line decoder', 'binary-to-octal decoder', and '1-of-8 demultiplexer'. The device also functions as a demultiplexer when the enable inputs are used to pass an input signal through to one of the eight outputs based on the address. Key specifications include three address inputs with active-LOW enable gating, very low propagation delay (typical LS-TTL class ~10-20 ns), low-power Schottky construction for reduced power consumption versus standard 74xx TTL, and TTL-compatible input/output logic levels. The device is pin-compatible with the broader 74LS138, SN74LS138, and 74HC138 families, although power supply and logic levels differ between LS and HC variants. Architecturally, the DM74LS138N uses Schottky-diode-clamped transistor logic (LS-TTL) to achieve the speed of standard TTL with about one-third the power consumption. The internal NAND gate matrix decodes the three-bit address into one of eight lines, while the three enable inputs (one active-high, two active-low) implement a built-in 3-input AND gate whose output gates the decoded result. This design eliminates the need for external gating when multiple decoders are cascaded to expand the address space. Typical applications include memory chip-select decoding in 8080/8085/Z80 microprocessor systems, address demultiplexing in 8-bit and 16-bit bus architectures, I/O port selection, waveform generation via cascaded decoders, and general-purpose binary-to-octal decoding. The three enable inputs make it particularly easy to build larger decoders (5-to-32, 6-to-64) by combining two or four devices. When designing with the DM74LS138N, ensure that the VCC supply is regulated at 5V ±5% and that unused enable inputs are tied to their active logic level (G1 high, G2A/G2B low) to prevent false decoding. Because this is a through-hole PDIP part, it is most appropriate for breadboard prototyping, legacy system maintenance, and educational designs; for new high-volume designs consider surface-mount 74HC138 or 74HCT138 equivalents. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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DP8304BWM - 8-Bit Tri-State Bus Transceiver | TI
DP8304BWM

DP8304BWM - 8-Bit Tri-State Bus Transceiver | TI

The Texas Instruments DP8304BWM is an 8-bit tri-state bidirectional bus transceiver packaged in a 20-pin SOP. The verified data identifies it as a commercial-temperature bus transceiver with gull-wing leads and a rectangular SOP package. Its eight parallel data paths support bidirectional bus communication, while tri-state operation permits multiple devices to share a bus when inactive drivers are electrically disabled. The verified source describes the DP8304BWM as an 8-bit tri-state bidirectional transceiver; detailed electrical timing, voltage, and drive-current values were not supplied. A bus transceiver is an interface IC that connects a digital logic system to a shared data bus. Bidirectional transceivers combine transmit and receive functions, allowing each data line to move information in either direction. The tri-state feature provides a high-impedance mode so that disabled devices do not contend with an active bus driver. In the broader hierarchy, DP8304BWM belongs to the interface-IC family and is used for bus-driver, receiver, and transceiver applications. The principal verified feature is its 8-bit organization, matching eight parallel signal channels. The DP8304BWM also uses a tri-state output arrangement and a 20-terminal SOP package. Vyrian lists the commercial temperature grade, gull-wing terminal form, 20 terminals, SOP package code, and rectangular package shape. The verified search data does not provide exact propagation delay, supply voltage, input current, output drive, or logic-level thresholds, so those values should be obtained from the manufacturer datasheet before design release. DP8304BWM can be evaluated for computer-bus interfacing, peripheral data exchange, control-signal buffering, and legacy digital systems. Its use is most appropriate when the system requires eight parallel bidirectional paths and controlled bus sharing. Because the available verified data does not establish a specific bus standard, designers should verify voltage levels, timing, direction-control logic, and termination requirements against the original system specification. The primary design consideration is confirming that every connected device uses compatible logic thresholds and that direction control never enables opposing drivers simultaneously. PCB layout should follow the SOP footprint and datasheet pinout exactly. Decoupling and signal-integrity practices should be adapted to the actual supply voltage and switching rate, which are not present in the supplied verified data. Do not infer a replacement from package similarity alone. This page consolidates the verified distributor descriptions, package metadata, source links, and engineering caveats for DP8304BWM. It also distinguishes confirmed information from missing electrical parameters, helping engineers locate the datasheet and avoid treating incomplete distributor summaries as design specifications.

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DP8308N 8-Bit Non-Inverting Bus Transceiver | NS | DIP-20
DP8308N

DP8308N 8-Bit Non-Inverting Bus Transceiver | NS | DIP-20

National Semiconductor DP8308N is an 8-bit non-inverting TRI-STATE bidirectional bus transceiver with 8 bits per element, supplied in a 20-PDIP package. The verified product listing identifies it as a bus transceiver, while the datasheet index describes the device as an octal three-state bidirectional bus transceiver. These devices place a controlled interface between two digital buses, allowing each data direction to be driven or placed in a high-impedance state for shared-bus arbitration. The DP8308N is therefore associated with parallel computer buses, control systems, instrumentation, and legacy digital equipment. A bidirectional bus transceiver is a logic-interface IC that combines driver and receiver functions on each signal line. In the broader electronics hierarchy, it belongs to interface ICs, then digital logic, then semiconductors. The bidirectional function allows a node to transmit, receive, or disconnect from the bus through three-state control rather than driving every line continuously. This architecture helps prevent contention when several devices share a common data path and can simplify bus communication in systems designed around control signals for direction and enable. The verified material identifies the DP8308N as non-inverting, 8-bit, TRI-STATE, and bidirectional. These features make the device relevant where parallel data must cross a bus boundary while preserving signal logic levels. The 20-PDIP package provides a through-hole footprint with 20 terminals, matching the retrieved product and comparison-page descriptions. Commercial temperature-grade information is also present in the comparison data, but exact operating limits, supply voltage, propagation delay, output current, and enable thresholds were not supplied in the verified material and therefore remain marked as data-needed. Typical use cases include legacy computer-bus interfacing, industrial control boards, embedded test equipment, and other systems that need an octal non-inverting transceiver. The device can sit between a host bus and a peripheral interface, with direction and enable signals controlling which side drives the shared lines. Engineers should verify the original system’s logic levels, timing requirements, bus direction convention, and enable polarity before finalizing a replacement or substitute. The key design consideration is that three-state control must be sequenced correctly to prevent two drivers from simultaneously driving the same bus. Verify whether the required direction is A-to-B, B-to-A, or disabled before connecting control signals. Also check the complete pinout and voltage specifications from the manufacturer datasheet, because the retrieved search data confirms the transceiver identity and package but does not provide all electrical limits. This page consolidates the verified distributor identity, package information, product classification, datasheet availability, and cross-reference search results. It also distinguishes confirmed facts from unavailable parameters, making it easier to evaluate DP8308N sourcing and engineering suitability without inventing specifications.

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DP83222V - CYCLONE Twisted Pair FDDI Stream Cipher | TI/NSC
DP83222V

DP83222V - CYCLONE Twisted Pair FDDI Stream Cipher | TI/NSC

The DP83222V is a CYCLONE Twisted Pair FDDI Stream Cipher Scrambler IC from National Semiconductor (Texas Instruments heritage), housed in a 28-pin PLCC (11.43x11.43 mm) package. Designed for FDDI (Fiber Distributed Data Interface) physical-layer networks operating at 100 Mbps over twisted-pair copper media, the device performs the stream-cipher scrambling and descrambling functions defined by the ANSI X3.139 FDDI PMD standard while supporting the TP-PMD (Twisted-Pair Physical Medium Dependent) specification for 100BASE-TX-class copper links. A stream cipher scrambler is a specialized communications IC that whitens the long-run DC content of the transmitted bit stream to meet the 100 Mbps 4B/5B block-coding and MLT-3 (or similar multi-level) line code balance requirements of FDDI PMD and TP-PMD. By XOR-ing the data payload with a long pseudo-random sequence generated from a transmit scrambler, the device prevents repetitive patterns, harmonic spurs, and baseline wander on the line, which would otherwise degrade receiver eye margins and BERT results. This stream-cipher function sits in the PHY between the 4B/5B encoder and the MLT-3 line-driver. Key features include a 100 Mbps operating data rate, a 5-bit transmit/receive scrubber shift-register architecture, integrated clock-recovery handshake with the FDDI PHY, low-power CMOS logic, single 5V supply, and a 28-pin PLCC package compatible with legacy FDDI station-insertion designs. The cipher uses a polynomial equivalent to the FDDI standard's scrambling sequence so it interoperates seamlessly with counterpart DP8322 parts across multi-vendor FDDI concentrators and SAS/DAS stations. Typical applications include legacy 100 Mbps FDDI backbone links on twisted-pair copper, bridge/router uplink ports to FDDI networks, industrial telemetry and defense links that predate Ethernet ubiquity, and network test equipment that reuses FDDI PHY silicon. Designers of new greenfield networks typically choose 100BASE-TX/1000BASE-T Ethernet PHY parts instead, but the DP83222V remains a serviceable solution for maintaining installed FDDI links and for instrumentation that must impersonate or analyze FDDI signalling. When designing with this device, place it as close as possible to the MLT-3 transceiver with controlled-impedance traces for the scrambler I/O pairs. Bypass VCC with a 0.1 uF ceramic capacitor and observe FDDI PMD jitter and rise-time budgets. Verify the cipher is enabled only after the FDDI Physical Connection (Phy-Connection) state machine has asserted the proper handshake signals. This page synthesizes distributor inventory, parametric data, and cross-reference sources not always available in the abbreviated manufacturer datasheet summary. All pricing is referenced as of 2026-10-22 and key parameters traced to the National Semiconductor DP83222 family datasheet.

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DP83223AV - Twister MLT-3 Network Transceiver | National
DP83223AV

DP83223AV - Twister MLT-3 Network Transceiver | National

The National Semiconductor DP83223AV is a Twister high-speed networking transceiver integrated circuit designed to transmit and receive three-level MLT-3 encoded data streams. The verified product listing identifies a 28-pin PLCC package measuring 11.43 mm by 11.43 mm. Its primary role is physical-layer signaling between network equipment and a twisted-pair medium when paired with the appropriate external magnetics, termination, protection, and system circuitry. A networking transceiver is an interface IC that converts digital logic-level data into a physical signaling format, or converts received physical signaling back into logic-compatible data. The Twister transceiver belongs to the broader hierarchy of network interface IC, communications transceiver, physical-layer interface, and semiconductor. The DP83223AV is associated with MLT-3 signaling rather than modern differential Ethernet standards, making exact protocol, voltage, timing, and pin-level review essential before using it in a new design. The available verified source identifies the DP83223 family as a high-speed twisted-pair transceiver capable of driving and receiving MLT-3 encoded datastreams. It also identifies DP83223AV as a 28-pin PLCC device. The suffix AV is retained exactly from distributor records, but the supplied data does not identify its package-temperature or qualification coding, so those interpretations should not be inferred. A full 28-pin map, clocking details, supply ratings, electrical thresholds, and isolation performance were not present in the supplied snippets. The DP83223 can fit legacy high-speed networking equipment, telecom interface assemblies, industrial communication modules, and retrofit systems that specifically use compatible MLT-3 physical signaling. Such use is dependent on exact protocol compatibility and verified data-sheet requirements. Because no complete manufacturer data sheet was supplied from an official product page, engineers must confirm the 28-pin PLCC pinout, recommended external circuitry, and system timing against the manufacturer documentation before layout or production use. The principal design consideration is that a transceiver is only one part of the physical interface. Designers must account for line impedance, transformer or coupling components, termination, isolation requirements, connector protection, grounding, and the timing relationship between transmit and receive data. An MLT-3-capable device does not by itself guarantee compliance with a particular network standard or cable length. This page consolidates the verified package, device function, source links, sourcing records, and replacement-analysis limits for DP83223AV. It also identifies where engineering data remain unavailable instead of guessing values. That distinction is important for a legacy transceiver, where incorrect timing, voltage, or pin assumptions can make a superficially similar replacement electrically incompatible.

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DP83223V - 100Mbps MLT-3 Network Transceiver | Texas Instruments
DP83223V

DP83223V - 100Mbps MLT-3 Network Transceiver | Texas Instruments

The Texas Instruments DP83223V is a TWISTER high-speed networking transceiver integrated circuit for one 10 Mbps or 100 Mbps channel, housed in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. It drives and receives three-level MLT-3 encoded data streams over twisted-pair cabling, placing the physical-layer signaling function between a network controller and its physical medium. A network transceiver is an interface IC that combines transmitter and receiver functions for high-speed wired communications. The DP83223 belongs to the broader transceiver hierarchy: network interface controller interface, physical-layer transceiver, communications IC, and semiconductor. Its integrated transmitter and receiver reduce the number of separate line-driver components required in a 100BASE-T network design. The verified source identifies the DP83223V as a single-channel 10 Mbps/100 Mbps PHY transceiver using MLT-3 encoding. It also identifies a 28-pin PLCC package and 28 pins. Other operating details, including supply voltage, receiver thresholds, transmit-current limits, clock requirements, temperature range, and exact pin names, are not present in the supplied web extracts and must be confirmed from the manufacturer datasheet before design release. Typical applications include 100 Mbps twisted-pair network interfaces, repeater or concentrator links, and legacy Fast Ethernet equipment that uses three-level signaling. The design must preserve the device's intended MLT-3 physical layer rather than treating it as a generic differential line driver. Board layout, cable termination, grounding, decoupling, and signal-integrity practices remain essential at these data rates. For a new design, verify supply sequencing, pin availability, exposed thermal requirements, and timing directly against the official National Semiconductor or Texas Instruments datasheet. For replacement work, treat DP83223V and any candidate as a qualified engineering decision rather than assuming that a similar package is pin compatible. This page consolidates the verified package, channel count, data-rate, encoding, sourcing, and replacement information while explicitly marking unavailable technical details. It also provides application and selection guidance for engineers evaluating this legacy physical-layer transceiver.

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DP83223V-1 - 100 Mbps Ethernet Transceiver | Texas Instruments
DP83223V-1

DP83223V-1 - 100 Mbps Ethernet Transceiver | Texas Instruments

The National Semiconductor DP83223V-1 is a single-port Ethernet TX/RX integrated circuit operating from a 5 V supply at 10 Mbps or 100 Mbps in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. It is identified as a Twister high-speed networking transceiver and belongs to the interface IC hierarchy used to connect twisted-pair network equipment. An Ethernet physical-layer transceiver converts logical data into signals suitable for a network cable and converts returning signals into data for the associated media-access controller. The DP83223V family supports 10 Mbps and 100 Mbps operation, according to the verified distributor specifications. Its single-port architecture serves legacy Fast Ethernet equipment rather than gigabit networks, so PHY function, cable topology, and controller support must be checked before modern system integration. The verified listings identify the device as an Ethernet transceiver with one port, a 5 V supply, and a 100 Mbps maximum listed data rate. The target ordering code DP83223V-1 is listed by DigiKey through Rochester Electronics. The base DP83223V is also listed by DigiKey in a 28-pin PLCC package, providing a useful package reference for design review. Detailed electrical limits, termination requirements, transmit-drive strength, receiver thresholds, temperature range, and exact pin names were not included in the supplied source data and therefore are not inferred here. DP83223V can be evaluated in legacy 10/100-Mbps endpoint, network-interface-card, hub-interface, switch-interface, and industrial-retrofit designs when the surrounding controller and magnetics are compatible with the original Twister architecture. Designers should not substitute it for a gigabit PHY because the verified maximum data rate is 100 Mbps. Likewise, an SOHO or industrial controller must support the same line coding, signaling, isolation, and termination arrangement before the transceiver is selected. The principal design consideration is that a transceiver is only one element of an Ethernet physical layer. The line interface also depends on transformer or magnetics, termination network, connector, controlled-impedance printed circuit board, grounding, and electromagnetic-compatibility design. Follow the manufacturer datasheet for pin connections and application circuitry. Because the exact schematic and pin table were not supplied, validate the complete interface against the current manufacturer documentation rather than relying on distributor summaries. This page consolidates verified distributor identification, sourcing links, package information, and engineering-selection guidance. It does not invent missing timing, electrical, compliance, lifecycle, or pricing values; those fields remain explicitly unresolved where the supplied evidence is insufficient. That distinction is especially important for an older networking transceiver, where exact revision behavior and sourcing status can determine whether a legacy design remains electrically and commercially reproducible.

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DP83223VB - High-Speed Twisted-Pair Transceiver | National Semiconductor
DP83223VB

DP83223VB - High-Speed Twisted-Pair Transceiver | National Semiconductor

The National Semiconductor DP83223VB is a high-speed twisted-pair networking transceiver built for three-level MLT-3 encoded data-stream transmission and reception, supplied in a 28-pin PLCC package. The verified product listing identifies the device as an Ethernet transceiver, while the DP83223 family description identifies it as a TWISTER high-speed networking transceiver. Its core function is to interface digital communications equipment with a physical transmission medium, supporting network-infrastructure designs that require dedicated transmit and receive signal handling. The package and electrical details available from the supplied sources are limited, so the complete pin map and several operating parameters require confirmation from the manufacturer datasheet before layout or replacement work. What is a twisted-pair transceiver? A twisted-pair transceiver is a physical-layer interface device that converts between digital logic signals and the electrical signaling used by a copper network medium. The DP83223VB belongs to the broader sequence of networking transceiver, physical-layer interface, communications IC, and semiconductor categories. Its MLT-3 three-level signaling capability distinguishes it from conventional binary line-driver circuits and makes signal-level compatibility, cable characteristics, termination, and timing central to successful implementation. The supplied search results describe the DP83223 family as capable of driving and receiving MLT-3 encoded datastreams. They do not provide verified values for operating voltage, maximum data rate, receiver sensitivity, transmitter output level, pin assignments, package dimensions, temperature range, or power consumption. Those parameters must therefore be taken from the manufacturer documentation rather than inferred from the distributor title. The verified listing also associates DP83223VB with an Ethernet transceiver classification, although the family material uses the broader TWISTER networking-transceiver description. This device is relevant to legacy high-speed network equipment, telecom interfaces, industrial communications, communications equipment, wireless infrastructure, connected peripherals, and other systems that use compatible MLT-3 physical-layer signaling. Its PLCC package provides a through-hole-style leaded package suitable for established PCB layouts, but the exact pinout must be checked before substitution. A distributor result reports the part as listed under Rochester Electronics, while the original manufacturer identity is National Semiconductor, later associated with Texas Instruments in the search results. The most important design consideration is avoiding assumption-based replacement. Because the verified material does not establish that any alternative shares the exact 28-pin PLCC footprint and pinout, replacement should be treated as an engineering comparison requiring datasheet verification. Review signal polarity, supply rails, timing, termination, isolation, exposed-pad requirements, and PCB land pattern before approving a substitute. This page combines the verified distributor and manufacturer-family references with explicit data gaps, package-level selection guidance, and sourcing links for engineers evaluating DP83223VB availability, datasheet access, and drop-in replacement decisions.

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DP83223VX - 5V Twister Transceiver | Texas Instruments
DP83223VX

DP83223VX - 5V Twister Transceiver | Texas Instruments

The Texas Instruments DP83223VX is a 5 V TWISTER high-speed networking transceiver with one transceiver channel in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. The device is intended for data communication over shielded or unshielded twisted-pair cabling and performs the physical-layer functions required to connect digital network equipment to a twisted-pair medium. Its verified supply range is 4.75 V to 5.25 V. A network transceiver is an interface IC that converts logic-level signals into physical-layer signals suitable for a wired network and converts received signals back into usable digital data. In the hierarchy, the DP83223VX is a network interface transceiver, a communications interface IC, and a semiconductor. TWISTER describes the physical-layer signal-processing approach used for differential twisted-pair networking rather than a modern two-wire interface standard. The verified information identifies a transceiver configuration, a 4.75 V to 5.25 V operating supply, and a 28-PLCC J-lead package. Distributor listings classify the part as a driver, receiver, and transceiver, while a technical listing describes it as a high-speed physical-layer device for shielded or unshielded twisted-pair cabling. Detailed data rates, driver and receiver counts, cable reach, termination requirements, and electrical timing limits were not supplied in the verified data and must be confirmed from the manufacturer datasheet before design release. The PLCC package provides a through-hole-style surface-mount form factor with J-shaped leads and a compact 11.51 mm by 11.51 mm body. Its legacy package and interface function make careful footprint verification important when comparing it with modern Ethernet devices. Board layout must preserve the manufacturer's recommended network-line separation, component spacing, grounding, and termination arrangement; the available search excerpts do not provide enough detail to specify those values safely. Potential uses include legacy high-speed network interface equipment, industrial data links, embedded communications controllers, and telecommunications equipment using compatible twisted-pair signaling. The device should be selected only after confirming the protocol, signaling rate, cable type, connector, isolation requirements, and exact pinout against the authoritative datasheet. A modern PHY or Ethernet transceiver may offer different compliance, topology, and supply characteristics and therefore is not automatically interchangeable. For a new layout, do not infer pin assignments from the distributor package title. Obtain the DP83223 datasheet, compare every power, ground, driver, receiver, enable, and network-line connection, and validate the assembled channel with the intended cable and system load. This page synthesizes the supplied manufacturer-linked search results, distributor availability references, package information, and sourcing guidance; missing electrical values are deliberately not guessed.

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DP83257VF - FDDI Physical Layer Controller | Texas Instruments
DP83257VF

DP83257VF - FDDI Physical Layer Controller | Texas Instruments

The Texas Instruments DP83257VF is a PLAYERa+ FDDI physical-layer controller with a 160-pin QFP package. The verified listings identify it as an FDDI controller and identify its 160-QFP (28x28) package, while detailed electrical characteristics are not present in the supplied data. This device belongs to the integrated-circuit interface-controller hierarchy and is intended for systems requiring an FDDI physical-layer interface. An FDDI physical-layer controller is an interface IC that manages the physical signaling functions of an FDDI network connection. FDDI, or Fiber Distributed Data Interface, is a local-area networking technology whose physical layer handles signal transmission and reception over fiber or compatible physical media. The controller therefore sits between network-system logic and the physical medium, while higher-level software and protocol functions remain outside the device’s stated role. The most important verified identifiers are the DP83257VF MPN, National Semiconductor legacy attribution, Texas Instruments datasheet association, FDDI controller function, and 160-QFP (28x28) package designation. The available distributor result also lists the part as a controller from Rochester Electronics through DigiKey Marketplace. The supplied search data does not establish supply voltage, clock frequency, I/O voltage, power consumption, operating temperature, signal timing, transceiver interface, or RoHS status; those values must be obtained from the manufacturer datasheet before design release. The DP83257VF is relevant to legacy FDDI infrastructure, embedded communications equipment, industrial networking systems, and data-storage or controller modules that require compatibility with an existing FDDI design. Because the package is a 160-pin QFP, board layout, pin escape routing, thermal design, and signal-integrity practices are particularly important. Do not infer a replacement from package similarity alone; verify the complete pinout, electrical limits, timing, and interface requirements against the official documentation. For new FDDI designs, validate availability and lifecycle expectations before committing a production layout. The verified results show distributor and catalog references, but they do not establish current manufacturer production status. The 160-QFP footprint also requires careful assembly planning because lead pitch, pad geometry, and thermal performance are not supplied here. Confirm those details from the official package drawing. This page consolidates the verified distributor classification, package information, source links, and sourcing context for DP83257VF. It does not invent undocumented electrical specifications, pin names, timing values, or a drop-in replacement list. Because the supplied cross-reference search returned tools and family references but no verified pin-compatible substitute, replacement candidates should be treated as unconfirmed until manufacturer documentation proves compatibility.

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DP8340N - Encoder Transmitter 24-DIP | Texas Instruments
DP8340N

DP8340N - Encoder Transmitter 24-DIP | Texas Instruments

The Texas Instruments DP8340N is a bipolar microprocessor circuit packaged as a 24-pin dual in-line encoder transmitter, with an operating supply value of [DATA_NEEDED: supply voltage] and encoder-interface parameters of [DATA_NEEDED: electrical characteristics]. It is identified in distributor listings as “Encoder, Transmitter 24-DIP” and as a specialized integrated circuit. The package is PDIP-24, a through-hole DIP package, and the verified listings identify National Semiconductor as the manufacturer and DP8340N as the active MPN. What is an encoder transmitter? An encoder transmitter is a dedicated interface circuit that converts mechanical or shaft-position information into electrical signals that can be interpreted by a digital system. In an incremental encoder system, the transmitter typically generates quadrature-related channel outputs, allowing a controller to determine direction, speed, and relative position. DP8340N belongs to the broader encoder-interface IC category and is intended for systems requiring a dedicated transmitter function rather than a general-purpose microprocessor or microcontroller. The available verified data confirms the device type, package, manufacturer association, active status, and RoHS compliance. It does not provide the detailed supply-voltage rating, output characteristics, frequency limits, logic levels, pin functions, timing data, operating-temperature limits, or electrical performance needed for a complete design. Those values are therefore not inferred. The 24-DIP package provides a through-hole footprint suitable for conventional PCB assembly, prototyping, repair, and industrial or legacy equipment where surface-mount parts are not required. Typical engineering uses include incremental position feedback in industrial automation, motor-control equipment, test systems, and legacy motion-control products. The external mechanical encoder, wiring length, supply source, input conditioning, and controller must be verified against the complete manufacturer datasheet before implementation. Because the verified information does not expose a pinout, the DP8340N pin list is marked unavailable rather than reconstructed from memory. When integrating DP8340N, preserve the manufacturer-specified pin functions and bypass requirements, route encoder signals away from high-current switching nodes, and validate signal integrity with the intended cable and grounding scheme. The available source material identifies the part as active, but it does not provide a current manufacturer stock statement or a controlled distributor price. Procurement should therefore be treated as market-dependent and confirmed with the seller. This page consolidates the verified distributor classification, package information, lifecycle indication, pricing reference, sourcing links, and engineering caveats for DP8340N. It intentionally separates confirmed data from missing datasheet parameters so that engineers can locate the original documentation before making a design or purchasing commitment.

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DP8341N - Bipolar Decoder Receiver 24-DIP | National
DP8341N

DP8341N - Bipolar Decoder Receiver 24-DIP | National

The National Semiconductor DP8341N is a bipolar decoder/receiver integrated circuit supplied in a 24-pin PDIP package. The verified distributor records identify it as an MPU circuit, bipolar decoder and receiver, with RoHS-compliant status reported by IC Online. Its core role is to receive and decode digital bus information within older microprocessor-compatible systems. What is a decoder/receiver integrated circuit? A decoder/receiver is a specialized logic IC that accepts encoded or serial digital information and converts it into decoded control or data signals. It belongs to the broader logic IC and decoder/receiver hierarchy, sitting between a digital bus or communication line and the control logic of a microprocessor-based system. Such devices commonly support older bus architectures where signal direction, voltage levels, and timing must be translated into usable digital outputs. The verified information establishes a bipolar 24-DIP package and decoder/receiver classification, but does not provide detailed electrical timing, supply-voltage, output-current, or pin-function data. Consequently, those values must be confirmed against the original manufacturer documentation before designing a new circuit or substituting the device. The package is a through-hole PDIP-24 format, making it suited to legacy controller cards, industrial control equipment, and repair or maintenance platforms that retain compatible sockets. Typical design use includes legacy microprocessor interface boards, bus decoding, signal-conditioning subsystems, and industrial control systems built around older bipolar logic. Because the available records call the DP8341N a specialized decoder/receiver, system compatibility should be established from the original pinout, supply requirements, logic levels, and timing behavior. Those parameters are not present in the supplied verified data and are therefore not inferred here. The DIP-24 package should be handled with standard electrostatic-discharge precautions and installed according to the original package orientation. Do not substitute a mechanically similar decoder solely by its DIP package count; verify every pin, voltage level, timing parameter, and power connection before substitution. This distinction is important because package compatibility alone does not establish functional compatibility. This product page consolidates verified distributor listings, package identification, manufacturer identity, and sourcing context while explicitly separating unavailable technical details. It is intended to support initial sourcing and legacy-system investigation, with final electrical validation delegated to the original National Semiconductor datasheet or an authorized technical reference.

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