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DP83800AVF Ethernet Interface Controller | National Semiconductor
DP83800AVF

DP83800AVF Ethernet Interface Controller | National Semiconductor

The National Semiconductor DP83800AVF is an Ethernet interface controller associated by distributor listings with drivers, receivers, transceivers, and 10/100-class network-adapter functions. The verified sources identify the original manufacturer as National Semiconductor, now associated with Texas Instruments, but they do not provide a complete manufacturer datasheet, electrical tables, timing values, package dimensions, or an official product-page description. The DP83800AVF package is identified publicly as QFP, while the exact pin count, pin names, and exposed-pad configuration remain unverified in the supplied data. An Ethernet interface controller is an interface IC that connects an embedded system or network adapter to a physical Ethernet network. In the broader hierarchy, it belongs to integrated circuits, interface ICs, network controllers, and communications semiconductors. Such devices typically coordinate physical-layer signaling, media access, data framing, and host-facing transfers, but the exact division of functions implemented by DP83800AVF cannot be confirmed from the supplied search snippets. The available distributor listing describes DP83800AVF as an ISA network adapter with an IC designation and catalog number 10/100. Another distributor result categorizes it among drivers, receivers, and transceivers. These labels indicate legacy networking and interface applications, but they are insufficient to establish supply voltage, clock, transceiver thresholds, media support, package dimensions, operating temperature, or host-bus timing. Those parameters require the original manufacturer datasheet. Potential legacy applications include ISA-based industrial control equipment, embedded controllers, network adapters, and industrial Ethernet systems designed around older host buses. These applications are contextual rather than verified design recommendations; host-bus compatibility, transceiver requirements, reference circuitry, magnetic-component integration, and signal-integrity constraints must be confirmed before schematic reuse. The primary design concern is source fidelity. DP83800AVF appears as an older or specialized catalog part, and distributor category labels differ across the retrieved pages. Engineers should obtain the original datasheet, verify the exact package suffix and lead count, compare every pin and supply rail, and reproduce the reference network before beginning a layout. A modern Ethernet controller may be electrically more capable while still being unsuitable as a drop-in replacement because legacy ISA signaling, voltage levels, timing, and package geometry can differ. This page distinguishes verified catalog facts from missing technical data, preserves uncertainty instead of guessing, and provides sourcing and validation guidance where the supplied evidence does not support numerical specifications. It also records that the available search results do not establish a manufacturer-authorized drop-in replacement for this legacy device.

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DP83810BVUL - PCI Ethernet Controller | Texas Instruments
DP83810BVUL

DP83810BVUL - PCI Ethernet Controller | Texas Instruments

Texas Instruments DP83810BVUL is a PCI Ethernet controller integrated circuit offered under the National Semiconductor product lineage. The verified distributor listing identifies the device as an Ethernet Controller PCI Interface, while current marketplace records show it available from multiple suppliers. It is supplied in the 48-LQFP package represented by the lqfp-48 package drawing. The qty-1 reference price is $7.5575 as of 2026-10-28. An Ethernet controller is an interface IC that connects a host computing system to an Ethernet network. The DP83810BVUL belongs to the broader semiconductor and integrated-circuit hierarchy, where interface devices translate between digital bus data and physical network signaling. Its PCI designation indicates a peripheral component interface-oriented role, while its Ethernet classification identifies the networking function served in systems such as embedded equipment, communications infrastructure, and industrial controllers. The principal verified features are the DP83810BVUL MPN, the National Semiconductor heritage shown by the marketplace listings, the PCI Ethernet controller category, the 48-LQFP package, and the $7.5575 qty-1 market reference. The verified excerpts do not provide the detailed data rate, transceiver architecture, I/O voltage, clocking requirements, register map, temperature range, or electrical limits. Those values remain unresolved rather than being inferred from similar Ethernet devices. The part is sourced through several independent marketplace channels. DigiKey lists DP83810BVUL as an Ethernet Controller PCI Interface and indicates that it can ship promptly. LCSC identifies the device as in stock and publishes the $7.5575 starting price. Octopart compares pricing from two distributors, while several additional inventory services list the exact MPN. This broad search footprint supports procurement review, although it does not by itself establish long-term lifecycle commitment. DP83810BVUL can be evaluated for PCI-based embedded platforms that require Ethernet connectivity, including industrial automation equipment, communications modules, data-acquisition systems, and compact network appliances. The exact interface compatibility, electrical characteristics, reference schematic, magnetic-interface requirements, and software-support expectations should be checked against the manufacturer documentation before a board design is released. The principal design prerequisite is to avoid assuming that identical package dimensions guarantee a working replacement. A PCI Ethernet controller also requires verified host-bus timing, power sequencing, signal-level compatibility, and appropriate network-transceiver implementation. Input and output capacitance, reference-clock configuration, interrupt behavior, and thermal performance must be taken directly from the relevant documentation and PCB reference design. This page consolidates the verified distributor identity, current availability, advertised price, package, and procurement links for DP83810BVUL. It also separates confirmed information from unavailable technical parameters, identifies the absence of a verified cross-reference result, and provides transparent guidance for evaluating same-family TI/National Semiconductor variants without presenting unverified specifications as fact.

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DP83815DUJB - 10/100 Ethernet PCI MAC/PHY | Texas Instruments
DP83815DUJB

DP83815DUJB - 10/100 Ethernet PCI MAC/PHY | Texas Instruments

Texas Instruments DP83815DUJB is a single-chip 10/100 Mb/s Ethernet controller integrating a PCI Media Access Controller, a 10BASE-T/100BASE-TX physical layer, and a 3.3 V transceiver in a 160-LBGA package. It supports 10 Mbps and 100 Mbps data rates, a 3 V to 3.6 V supply range, and a 0 °C to +70 °C operating-temperature range. An Ethernet MAC/PHY is a controller that connects a computer or embedded system to twisted-pair Ethernet media. The MAC subsystem handles frame processing and the host interface, while the PHY converts digital data into signals suitable for 10BASE-T or 100BASE-TX links. Integrating both functions reduces the number of discrete interface components, although magnetics, termination, clocking, decoupling, and a compatible driver remain necessary around the IC. The DP83815DUJB provides full-duplex operation, IEEE 802.3x flow control, VLAN support, and long-frame support. Its PCI interface makes it relevant to legacy PCI systems and embedded platforms whose host bus requires the DP83815 rather than a modern PCIe Ethernet controller. The integrated physical layer supports both 10BASE-T and 100BASE-TX connectivity, allowing negotiation between 10 Mbps and 100 Mbps links. Technically, the device combines protocol handling, media access, and physical-layer signaling in one silicon implementation. A typical implementation places the controller beside an Ethernet transformer and RJ-45 connector, with short differential traces routed as controlled-impedance pairs. The 15 mm by 15 mm LBGA also demands careful escape routing because its 160-pin arrangement provides no perimeter leads. Supply and return distribution must therefore be planned as part of the high-speed mixed-signal layout. Typical applications include legacy industrial controllers, PCI-based embedded systems, embedded test equipment, data-acquisition systems, and industrial networking adapters that require 10/100 Mb/s Ethernet. Its 0 °C to +70 °C range is appropriate for commercial equipment, while the PCI host interface limits its usefulness in new designs centered on compact embedded processors or modern personal computers. Designers should verify the complete pinout, reference circuit, clock requirements, and PCI electrical characteristics against the manufacturer datasheet before layout. Because the DP83815DUJB is identified as obsolete in the supplied cross-reference results, repair and maintenance demand careful sourcing, while new designs should confirm whether a currently supported controller offers a more practical interface, package, and availability profile. This page consolidates the verified supplier specifications, lifecycle evidence, replacement search results, package constraints, and engineering guidance into one selection reference. It also distinguishes verified drop-in evidence from broader Ethernet-controller alternatives, helping engineers avoid treating electrically similar devices as PCB-compatible replacements.

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DP83815DVNG - 10/100 Ethernet PCI Controller | Texas Instruments
DP83815DVNG

DP83815DVNG - 10/100 Ethernet PCI Controller | Texas Instruments

The Texas Instruments DP83815DVNG is a single-chip 10/100 Mb/s Ethernet media access controller and physical layer for the PCI bus, supplied in a 144-LQFP (20 x 20 mm) package. It combines the host-interface controller, packet-processing logic, and Ethernet PHY in one device for low-cost PCI motherboards, network adapter cards, and embedded systems. An Ethernet media access controller, or MAC, manages frame transmission and reception between a computer system and the physical network layer. The DP83815 integrates that MAC function with a 10BASE-T/100BASE-TX PHY, while its PCI interface provides host communication through bus mastering. Packet descriptors and data are transferred directly by the controller, reducing processing load on the host CPU and improving throughput in network-intensive systems. The device implements the PCI version 2.2 interface at 33 MHz and includes power-management support. It supports IEEE 802.3 Ethernet operation, 10/100 Base-T/TX connectivity, virtual LAN and long-frame support, and IEEE 802.3x full-duplex flow control. These features make it suitable for legacy PCI systems, embedded control platforms, industrial equipment, and retrofitted personal computers that require a dedicated Ethernet controller rather than a modern software MAC. Electrical operation is centered on a 3 V to 3.6 V supply range, with a reported supply current of approximately 170 mA. The commercial-temperature variant operates from 0C to +70C. Because the controller combines digital PCI processing with analog PHY functions, the layout should keep the Ethernet differential pairs controlled and provide the supply and decoupling network recommended by the manufacturer. The DP83815DVNG is primarily intended for PCI-based systems. It is not a USB Ethernet controller, and it cannot directly replace devices using a PCI Express, USB, or RMII interface without board-level redesign. Its integrated PHY and bus-mastering architecture make it useful when a design requires autonomous packet handling and reduced host-CPU involvement. This page consolidates the verified manufacturer and distributor specifications, compares documented same-family alternatives, and highlights the practical constraints engineers should check before reusing a legacy PCI motherboard design. Pricing and availability must be confirmed against current distributor listings because the retrieved source data did not provide a numeric price schedule.

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DP83816AVNG - 10/100 Mb/s PCI Ethernet Controller | Texas Instruments
DP83816AVNG

DP83816AVNG - 10/100 Mb/s PCI Ethernet Controller | Texas Instruments

Texas Instruments DP83816AVNG is a single-chip 10/100 Mb/s Ethernet controller and physical layer for the PCI bus, housed in a 144-pin LQFP package. It combines an IEEE 802.3 Ethernet media access controller with a 10/100 Base-T/TX physical layer and supports a 33 MHz PCI bus interface with power management. An Ethernet media access controller is the system-level component that manages frame transmission, reception, addressing, and host-to-network data movement. In the product hierarchy, the DP83816AVNG is an Ethernet controller, an interface IC, and a PCI networking semiconductor that combines MAC and PHY functions. Integrating these blocks reduces the number of components required by a PC motherboard, PCI adapter card, or embedded PCI networking system. The device provides 10 Mb/s and 100 Mb/s Ethernet operation and is listed by Texas Instruments as an IEEE 802.3 controller with a 10/100 Base-T/TX PHY and PCI interface. Bus mastering transfers packet descriptors and data directly, reducing the processing burden on the host processor. The cited product information also identifies flexible receive-packet filtration and IEEE 802.3x full-duplex flow-control support. The DP83816 architecture targets low-cost, high-volume PC motherboards, adapter cards, and embedded systems. Its integrated PCI interface implements the V2.2 33 MHz PCI bus specification for host communication and includes power-management support. Combining the Ethernet MAC and physical layer in one package simplifies board partitioning while retaining bus-mastered packet transfer. Typical applications include legacy PCI industrial controllers, embedded communication equipment, PCI expansion systems, and host adapter cards requiring 10/100 Mb/s Ethernet connectivity. The DP83816 is particularly relevant to installed industrial systems that retain PCI infrastructure but require a dedicated Ethernet controller rather than a software-only network interface. Designers should verify the exact pin assignments, signal states, external magnetic-component requirements, reference clock arrangement, and power sequencing directly against the manufacturer datasheet before layout release. The 144-pin LQFP footprint is large, so high-speed trace routing and thermal performance should be reviewed alongside connector placement and magnetics isolation. This page combines verified manufacturer and distributor information, documented replacement references, package details, and practical sourcing guidance. It also distinguishes confirmed same-footprint order variants from unrelated controllers so engineers do not mistake a functionally similar networking IC for a pin-compatible drop-in replacement.

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DP83816AVNG-TI - 10/100 Ethernet PCI Controller | TI
DP83816AVNG-TI

DP83816AVNG-TI - 10/100 Ethernet PCI Controller | TI

The Texas Instruments DP83816AVNG-TI is a single-chip 10/100 Mb/s Ethernet controller and physical-layer device for a 33 MHz PCI bus, packaged in a 144-lead LQFP measuring 20 mm by 20 mm. It combines the Ethernet media access controller, physical layer, and PCI host interface in one device, making it suitable for motherboards, PCI adapter cards, and embedded systems requiring wired Ethernet connectivity. An Ethernet controller is an interface IC that coordinates data transfer between a host computer or embedded processor and a physical network. The DP83816 belongs to the PCI interface and Ethernet controller hierarchy, where the PCI interface connects to the host bus and the integrated 10/100 Mb/s physical layer connects through twisted-pair cabling. Its integrated design reduces the number of separate interface devices required in a compact network interface design. The DP83816 supports 10 Mb/s and 100 Mb/s Ethernet operation under IEEE 802.3, while its PCI interface implements the V2.2 33 MHz bus specification. Bus mastering transfers packet descriptors and data directly between the controller and system memory, reducing the processing burden on the host CPU during network traffic. The device also includes power-management support for systems that require controlled low-power behavior. The 144-LQFP package provides 144 electrical and ground connections needed by the combined MAC, PHY, and PCI functions. Its 20 mm by 20 mm footprint is larger than modern compact Ethernet devices, but it remains practical for conventional PCI motherboards and expansion cards where a large, established controller footprint is acceptable. The package and exposed leads support automated PCB assembly and inspection when board geometry is designed around the specified land pattern. Typical applications include 10/100 Mb/s PCI motherboards, PCI Ethernet adapter cards, embedded industrial controllers, legacy embedded systems, and PCI-compatible embedded platforms. In each application, the device acts as the network interface between the PCI host and a 10/100BASE-T network, transferring frames through bus-mastered descriptors while the host operating system manages the network stack. Board design should preserve the PCI signal-integrity topology, provide the required clock and decoupling networks, and route Ethernet pairs according to the manufacturer reference design. Because the controller is a mature PCI device rather than a compact embedded Ethernet interface, designers should confirm host-bus compatibility, software driver support, and connector magnetics before committing the 144-LQFP footprint to a new design. This page combines the manufacturer’s product information, package identification, interface details, and cross-reference findings into an engineering-oriented view of the DP83816AVNG-TI. It also provides application guidance, drop-in family candidates, and design notes that clarify where the legacy PCI architecture remains appropriate and where a newer Ethernet controller may offer a better system-level fit.

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DP83822HRHBT - 10/100 Ethernet PHY | Texas Instruments
DP83822HRHBT

DP83822HRHBT - 10/100 Ethernet PHY | Texas Instruments

Texas Instruments DP83822HRHBT is a robust, low-power 10/100-Mbps Ethernet physical-layer transceiver with extended-temperature capability, 16-kV ESD protection, and a 32-pin VQFN package measuring 5.00 mm × 5.00 mm. It provides the physical-layer functions required to transmit and receive data over standard twisted-pair cables or connect to an external fiber-optic transceiver. An Ethernet physical-layer transceiver, or Ethernet PHY, is the semiconductor interface between a digital network controller and physical communication media. Within the hierarchy of Ethernet interface ICs, a PHY converts parallel digital data into electrical signaling for copper cabling. The DP83822H family supports MII, RGMII, and RMII host interfaces and is designed for 10/100-Mbps industrial and embedded networks. The device combines 10/100-Mbps data-rate support with a low-power design and programmable energy-saving functions. Energy Efficient Ethernet, Wake-on-LAN, and other programmable operating modes can reduce power consumption when the link is idle or the system is not actively communicating. Its robust electrical design and 16-kV ESD rating are particularly relevant to industrial environments where cables and ports can be exposed to electrostatic discharge. The DP83822 uses a 32-pin VQFN package and is supported by the manufacturer datasheet as a pin-to-pin upgrade path for TLK105, TLK106, TLK105L, and TLK106L 10/100-Mbps Ethernet PHYs. The manufacturer also identifies an EtherCAT slave reference design using the DP83822H family, emphasizing its use in cost-optimized, high-EMC-immunity industrial Ethernet equipment. Typical uses include industrial automation controllers, motor drives, embedded Ethernet gateways, factory communication equipment, and copper-to-fiber network bridges. The PHY can also serve designs requiring Wake-on-LAN, Energy Efficient Ethernet, or operation across the extended-temperature range stated for the DP83822H family. Designers should treat the digital interface mode, magnetic-device selection, termination network, crystal or clock requirements, and PCB return paths as a complete PHY subsystem. Because exposed connector pins may receive electrostatic discharge, correct board grounding and cable-side protection remain important even though the integrated 16-kV ESD capability improves ruggedness. This product page consolidates verified manufacturer and distributor facts into an engineer-oriented comparison of functionality, package, temperature capability, ESD protection, replacement options, and industrial Ethernet design considerations. It also distinguishes documented pin-compatible TI variants from unverified cross-brand alternatives, avoiding unsupported drop-in claims.

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DP83822IRHBR - 10/100 Ethernet PHY, 16 kV ESD | TI
DP83822IRHBR

DP83822IRHBR - 10/100 Ethernet PHY, 16 kV ESD | TI

Texas Instruments DP83822IRHBR is a robust, low-power 10/100-Mbps Ethernet physical-layer transceiver with 16-kV ESD protection in a 32-pin VQFN package measuring 5.00 mm × 5.00 mm. It supports 10-Mbps and 100-Mbps Ethernet links and provides programmable energy-saving modes, including EEE, Wake-on-LAN, and related features described by Texas Instruments. An Ethernet PHY transceiver converts between a device’s digital media-access-control interface and the analog signals carried over twisted-pair Ethernet cabling. The DP83822I belongs to the broader Ethernet physical-layer hierarchy: PHY transceiver, network interface IC, interface IC, and semiconductor. Placing the physical layer beside the network controller allows the controller to process frames while the PHY manages the electrical signaling and cable-side conditions. The principal verified characteristics are 10/100-Mbps data-rate support, a 16-kV ESD rating, low-power operation, and a compact 32-VQFN 5.00 mm × 5.00 mm package. Texas Instruments describes the DP83822 as a feature-rich, pin-to-pin upgrade option for TLK105, TLK106, TLK105L, and TLK106L Ethernet PHYs. Those documented upgrade paths are more useful than a generic functional equivalent because they identify compatibility directly in the manufacturer’s support material. The DP83822 architecture separates cable-facing analog functions from the digital MAC-facing interface. Its 10/100-Mbps capability is appropriate for links where 100 Mbps is sufficient and a gigabit PHY would add unnecessary cost, power, or board area. Programmable EEE and Wake-on-LAN support can reduce energy use when link activity is low, although system configuration determines when these modes are safe to enable. Typical installations include industrial control terminals, factory automation equipment, embedded systems, USB-to-Ethernet adapters, set-top equipment, and network-interface cards. The small 5.00 mm × 5.00 mm VQFN package supports compact designs, but exposed-pad thermal management, controlled-impedance routing, isolated magnetics, and ESD-oriented layout remain essential for reliable field operation. Designers should compare the DP83822 against the specific TLK105 or TLK106 family member used in the original design rather than treating every 10/100 PHY as interchangeable. Confirm the exact pinout, supported operating mode, clocking arrangement, strap configuration, and crystal or oscillator requirements against the manufacturer datasheet before production substitution. Ethernet magnetics and connector selection also affect the complete link budget. This page consolidates verified manufacturer and distributor information, documented pin-to-pin upgrade paths, transparent pricing, application guidance, and engineering cautions that are not normally presented together on a distributor search result.

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DP83822IRHBT - 10/100 Ethernet PHY | Texas Instruments
DP83822IRHBT

DP83822IRHBT - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83822IRHBT is a low-power, robust 10/100-Mbps Ethernet PHY transceiver with 16-kV ESD protection, supplied in a 32-pin VQFN (RHB) package. It is designed for embedded Ethernet connectivity where a compact physical-layer device is required between a network medium and a host or embedded controller. The DP83822IRHBT operates across a -40 °C to 85 °C temperature range and is identified by Texas Instruments as a specialized Ethernet interface solution. An Ethernet PHY, or physical-layer transceiver, is the component that converts logical data into signals suitable for an Ethernet cable and converts received signals back into digital data for the host. The DP83822 belongs to the Ethernet interface IC hierarchy, where it provides the physical-layer function below a network controller, industrial control system, or embedded processor. Its 10/100-Mbps support makes it relevant for legacy Fast Ethernet networks and industrial equipment that require a reliable wired connection without a higher-speed transceiver. The principal verified features are 10/100-Mbps Ethernet operation, 16-kV ESD robustness, a 32-pin VQFN (RHB) package, and an operating temperature range of -40 °C to 85 °C. The low-power positioning makes the device suitable for embedded and industrial systems where the Ethernet interface must coexist with constrained power budgets. The package provides a compact surface-mount implementation, while the specified ESD capability supports protection for exposed copper connections in industrial or communications environments. The manufacturer describes DP83822IRHBT as a robust, low-power Ethernet PHY transceiver. The part number identifies the RHB package variant and the T suffix indicates the reel or packaging configuration used by distributors. Its system role requires a compatible host interface, suitable magnetic-interface components or network connection arrangement, correct power sequencing, and PCB layout that follows the manufacturer’s reference design. The available web results confirm the device family, package, speed class, ESD rating, temperature range, and sourcing information. Typical applications include industrial Ethernet controllers, factory automation equipment, embedded network modules, access-control systems, building automation, communications equipment, and test or measurement products that require a wired 10/100-Mbps connection. In these systems, the PHY can reduce the complexity of implementing the physical Ethernet layer while allowing the host processor to handle packet processing and higher-level protocols. Designers should review the manufacturer datasheet for the complete electrical characteristics, register map, pin configuration, magnetic-interface recommendations, and layout guidance. The available verified data does not publish the complete pinout or detailed timing, power, and environmental parameters, so those values are marked as data needed rather than inferred. This page combines verified product identity, sourcing information, drop-in alternatives, comparison details, and practical application guidance for engineers evaluating the DP83822IRHBT.

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DP83825IRMQR - 10/100 Ethernet PHY | Texas Instruments
DP83825IRMQR

DP83825IRMQR - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83825IRMQR is a low-power 10/100-Mbps Ethernet physical-layer transceiver with a 50-MHz clock output, integrated PMD sublayers, and support for 10BASE-Te and 100BASE-TX protocols. Housed in a 24-pin WQFN (RMQ) package measuring 3 mm by 3 mm, the DP83825IRMQR supports full- and half-duplex Ethernet operation and cable reaches of up to 150 meters over CAT5e. The device interfaces to twisted-pair media through an external transformer. An Ethernet PHY transceiver is the physical-layer component that converts digital MAC data into signals suitable for transmission over copper cabling. Within the network hierarchy, the DP83825I belongs to the Ethernet physical layer and supports the IEEE 802.3 protocols identified in distributor and manufacturer listings. Its integrated PMD sublayers support both 10-Mbps and 100-Mbps operation, allowing a common physical-layer design to accommodate legacy and Fast Ethernet links. The DP83825IRMQR combines a compact 3 mm by 3 mm footprint with low-power operation and a 50-MHz clock output. It supports Energy Efficient Ethernet, Wake-on-LAN, and MAC Auto-Disable according to the Texas Instruments product description. The 24-WQFN package also makes the device suitable for space-constrained equipment where a larger connector or magnetics section would be undesirable. An external Ethernet transformer remains required because the PHY does not connect directly to the medium. The integrated 10BASE-Te and 100BASE-TX support covers Fast Ethernet links on CAT5e up to 150 meters. Full- and half-duplex modes provide deployment flexibility, while Energy Efficient Ethernet can reduce link activity when traffic is low. The 50-MHz clock output can support systems requiring a stable timing reference. These features place the device between an Ethernet MAC or embedded network controller and an external transformer-based copper interface. Typical uses include compact industrial controllers, embedded Ethernet equipment, access points, network interface modules, and energy-conscious terminals. The small package is particularly useful in space-constrained embedded systems that still require a wired 10/100-Mbps connection. Wake-on-LAN support is useful in systems that must remain remotely wakeable, while MAC Auto-Disable can simplify power management where link state is not continuously required. Designers should treat the external transformer, magnetic isolation, Ethernet magnetics layout, and connector interface as critical parts of the complete solution. Strapping resistors configure operating parameters, and the TI E2E support record specifically discusses the datasheet pull-up and pull-down values. Board layout should minimize high-frequency return paths and preserve the manufacturer-recommended separation between PHY, magnetics, and connector sections. This page consolidates verified manufacturer, distributor, and cross-reference information with application guidance and source-linked design notes. It distinguishes documented capabilities from parameters that require confirmation in the current manufacturer datasheet, helping engineers evaluate the DP83825IRMQR without relying on unverified substitute claims.

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DP83825IRMQT - 10/100 Ethernet PHY, 24-WQFN | Texas Instruments
DP83825IRMQT

DP83825IRMQT - 10/100 Ethernet PHY, 24-WQFN | Texas Instruments

The Texas Instruments DP83825IRMQT is a compact 10/100-Mbps Ethernet physical-layer transceiver with a 50-MHz clock output, IEEE 802.3 protocol support, and up to 150 meters of CAT5e reach in a 24-pin WQFN (RMQ) package measuring 3 mm by 3 mm. It is designed for space-constrained equipment requiring integrated MDI and MAC termination resistors and low power consumption below 127 mW. An Ethernet PHY is the physical-layer component that converts logical data from a MAC into electrical signaling for a twisted-pair network. It belongs to the Ethernet transceiver hierarchy and implements the physical specifications of 10BASE-T and 100BASE-TX. The DP83825I family connects to CAT5e media through an external transformer, allowing industrial and embedded designs to use the same Ethernet PHY for both 10-Mbps and 100-Mbps links. Key features include programmable energy-saving modes, including active sleep and deep sleep, along with Energy Efficient Ethernet and Wake-on-LAN support. The integrated MDI and MAC termination resistors can reduce external discrete-component requirements, while the 50-MHz clock output provides a convenient reference for compatible system circuitry. Its 3 mm by 3 mm WQFN-24 package supports compact industrial designs without requiring a larger connector-side layout. The DP83825I uses integrated PMD sublayers to support 10BASE-T and 100BASE-TX protocols. The PHY interfaces directly with twisted-pair media through an external transformer, and the verified manufacturer description specifies cable reach of up to 150 meters over CAT5e. Because this is a physical-layer device rather than a complete network interface controller, the host system must provide the compatible MAC and required software or firmware support for Ethernet operation. Typical uses include industrial control equipment, embedded Ethernet gateways, compact network terminals, factory automation interfaces, and low-power network-connected sensors. Its small package is particularly useful when connector placement and board area are constrained. In designs with energy-saving requirements, the available sleep modes can reduce activity when link or traffic conditions permit, although the host controller must implement the corresponding operating policy. Designers should follow the manufacturer’s recommended transformer, termination, layout, and decoupling network rather than treating the PHY as a generic Ethernet jack controller. The 3 mm by 3 mm WQFN package requires careful PCB layout and adequate thermal relief around its exposed pad. Magnetic-component selection, center-tap capacitors, and copper-track geometry materially affect return loss, insertion loss, and radiated emissions. This page consolidates the verified manufacturer specifications, distributor pricing, package details, and practical replacement guidance for DP83825IRMQT. It also distinguishes exact electrical alternatives from broader functional equivalents so engineers can make a defensible PCB-level replacement decision.

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DP83826AI - Low-Latency 10/100 Ethernet PHY | TI
DP83826AI

DP83826AI - Low-Latency 10/100 Ethernet PHY | TI

The Texas Instruments DP83826AI is a low-latency, deterministic 10/100 Mbps industrial Ethernet PHY optimized for EtherCAT and real-time industrial fieldbus systems. Housed in a compact 32-pin VQFN (RHB) 5x5 mm package, the DP83826AI integrates an IEEE 802.3 10BASE-Te and 100BASE-TX PHY with MII and RMII MAC interfaces, targeting designs where deterministic sub-microsecond latency is critical for closed-loop control. The part supports industrial temperature operation (-40C to +85C) and offers enhanced EMC/ESD performance rated for IEC 61000-4-2 Class A 8 kV contact discharge, making it suitable for harsh factory environments where DP83826I (the non-improved variant) does not meet Class A margins. The DP83826AI also adds a strap option on RX_CLK to prevent link drop in EMI-prone industrial settings. An industrial Ethernet PHY (Physical Layer transceiver) is a specialized transceiver IC that connects an MCU or SoC's MAC (Media Access Controller) to the copper twisted-pair medium via an isolation transformer, performing 10BASE-Te/100BASE-TX line coding, echo cancellation, and clock/data recovery. In the broader system hierarchy, the PHY sits below the MAC layer (Layer 2) of the OSI reference model and above the transformer and RJ-45 magnetics, forming the physical interface that turns serialized MAC data into MLT-3 (100BASE-TX) or differential Manchester-coded (10BASE-Te) signals on the MDI lines. For deterministic real-time protocols such as EtherCAT, Profinet IRT, and SERCOS III, the PHY's transmit and receive pipeline latency must be tightly bounded; the DP83826AI is designed to meet those bounds. Key differentiating features of the DP83826AI include sub-microsecond deterministic loop latency in 100 Mbps full-duplex mode, low power consumption suitable for distributed sensor nodes, integrated PHY diagnostics including cable diagnostics and link-quality monitoring, support for both MII and RMII bus widths, and an industrial-grade operating range. The 32-VQFN (RHB) package with an exposed thermal pad enables compact board layouts typical of small PLC slices, distributed I/O stations, and motor-control daughterboards where PCB real estate is at a premium. In typical operation the DP83826AI is paired with an industrial MCU (such as TI's Sitara AM243x family) running an EtherCAT slave stack, with the PHY providing the physical edge to a 100BASE-TX link. The architecture focuses on minimizing store-and-forward buffers in the receive and transmit paths, which is what enables the bounded, jitter-free latency that EtherCAT's distributed clock synchronization demands. Hardware straps allow configuration of master/slave mode, MII vs. RMII selection, and 10/100 Mbps speed without external software intervention in strap-only systems. Typical applications include EtherCAT slave modules, Profinet IRT devices, industrial servo drives, distributed I/O over industrial Ethernet, and small-form-factor PLCs. Real-world deployments span factory-floor closed-loop motion control, substation automation with IEC 61850, and deterministic sensor networks where IEEE 1588 timing is carried over the same Ethernet link. When designing with the DP83826AI, pay close attention to magnetics selection (the part requires a 1:1 transformer ratio with a center-tapped primary for 100BASE-TX), PCB layout for the MDI traces (100-ohm differential with controlled impedance), and isolation barrier placement to meet IEC 61800-3 industrial emissions requirements. Use of dedicated magnetics with integrated common-mode chokes is recommended to take full advantage of the device's improved EMC margin relative to DP83826I.

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DP83826ERHBR - 10/100 Ethernet PHY | Texas Instruments
DP83826ERHBR

DP83826ERHBR - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83826ERHBR is a deterministic, low-latency, low-power 10/100 Mbps industrial Ethernet Physical Layer transceiver with MII, RMII, and enhanced-mode interfaces, supplied in a 32-pin VQFN RHB package measuring 5 x 5 mm. Its specified operating-temperature range is -40°C to +105°C, making it suitable for industrial networking equipment operating across extended temperature environments. An Ethernet PHY is the physical-layer component that translates digital Ethernet data into signals suitable for copper cabling and recovers incoming signals from the cable. In the product hierarchy, the DP83826ERHBR is an Ethernet transceiver, then a network interface controller, then an interface IC, and ultimately an integrated semiconductor. It connects an embedded system or processor to a 10BASE-T or 100BASE-TX Ethernet network while leaving higher-layer protocol processing to the host controller. The device supports 10/100 Mbps operation, low-latency packet handling, MII and RMII host interfaces, and an enhanced operating mode. The manufacturer identifies it as a deterministic industrial Ethernet PHY, while verified distributor information identifies a 1.8 V / 3.3 V supply configuration. Its 32-VQFN RHB package supports compact designs but requires careful exposed-pad thermal management, high-speed layout discipline, and correctly implemented magnetic-interface circuitry. The DP83826ERHBR family is positioned for industrial Ethernet, fieldbus equipment, factory automation, industrial switches, and embedded control systems. Deterministic latency is especially valuable where predictable network response matters more than maximum aggregate throughput. The part supports copper Ethernet at 10 Mbps or 100 Mbps rather than gigabit rates, making it appropriate for legacy 10/100 infrastructure and cost-sensitive embedded links. The 5 x 5 mm RHB package uses an exposed thermal pad for improved heat transfer. Designers should follow the manufacturer's recommended power, decoupling, magnetic-component, and four-pair-differential-layout guidance because small package size alone does not guarantee signal integrity or adequate thermal performance. This page consolidates verified manufacturer and distributor information, package and lifecycle details, price data as of 2026-10-30, candidate drop-in comparisons, and practical engineering considerations. Candidate alternatives remain subject to pin-function, clocking, magnetic-interface, and firmware validation before PCB substitution.

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DP83826ERHBT - 100Mbps Industrial Ethernet PHY | Texas Instruments
DP83826ERHBT

DP83826ERHBT - 100Mbps Industrial Ethernet PHY | Texas Instruments

The Texas Instruments DP83826ERHBT is a deterministic, low-latency 10/100-Mbps industrial Ethernet PHY with MII and RMII interfaces, supplied in a 32-VQFN 5 x 5 mm package. It supports 10BASE-Te and 100BASE-TX protocols, hardware bootstrap for rapid link establishment, fast link-drop detection, and a dedicated reference CLKOUT for synchronizing other system modules. An Ethernet PHY is a physical-layer semiconductor that translates digital MAC data into signals suitable for twisted-pair cabling and recovers incoming signals for the network controller. Within the hardware hierarchy, the DP83826ERHBT is an interface IC, network interface controller, Ethernet transceiver, and physical-layer PHY. It connects an Ethernet MAC or embedded processor to a 10BASE-Te or 100BASE-TX network while supporting both MII and RMII host interfaces. The device is designed around predictable industrial-network behavior rather than only conventional throughput. Its low and deterministic latency supports real-time Ethernet systems, while low-power operation helps control system demand. Hardware bootstraps support fast link-up times, and configurable fast link-drop detection modes can improve recovery after network disturbances. The dedicated reference clock output provides a convenient synchronization source for modules elsewhere in the system. The DP83826E family supports 10-Mbps and 100-Mbps Ethernet operation for industrial automation, factory equipment, networking equipment, embedded control, communications infrastructure, and test systems. Its MII interface suits designs requiring parallel digital signaling, while RMII reduces host pin requirements in compact embedded designs. The enhanced operating mode provides additional configuration options for demanding industrial applications. A primary design consideration is the relationship between PHY configuration, MAC timing, magnetic-interface components, and the industrial network topology. The PHY must be matched to the magnetics and cabling environment, while reset, interrupt, reference-clock, and strap configuration must be reviewed against the host processor power-up sequence. Controlled impedance routing and a suitable low-noise supply arrangement are also important for maintaining reliable data transmission. This page combines verified manufacturer and distributor information, package details, commercial availability, drop-in family alternatives, and application-oriented engineering guidance. It distinguishes verified facts from unavailable values so designers can identify where a datasheet review, PCB footprint check, or component-level cross-reference is still required before release to manufacturing.

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DP83826IRHBR - 10/100 Ethernet PHY | Texas Instruments
DP83826IRHBR

DP83826IRHBR - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83826IRHBR is a deterministic, low-latency, low-power 10/100 Mbps Ethernet physical-layer transceiver with an MII interface, operating from -40°C to 85°C in a 32-pin VQFN RHB package. It supports 10BASE-T and 100BASE-TX Ethernet protocols for industrial systems requiring predictable packet timing and compact networking hardware. An Ethernet PHY is the physical-layer interface between a network controller and twisted-pair cabling. It converts digital frames supplied by an Ethernet MAC into electrical signals for 10BASE-T or 100BASE-TX links, while receiving and decoding incoming signals. Within the network hierarchy, the DP83826IRHBR is an Ethernet interface IC and physical-layer transceiver below the MAC controller, suitable for industrial Ethernet, factory automation, embedded control, and real-time communications equipment. Verified device information identifies a 10/100 Mbps data rate, MII interface, enhanced operating mode, and industrial temperature range of -40°C to 85°C. The device is supplied in a 32-pin VQFN RHB package with a 5 mm by 5 mm footprint. The MII interface provides a conventional parallel connection to an Ethernet MAC, allowing the PHY to be paired with suitable embedded processors or industrial network controllers. The DP83826 family emphasizes deterministic and low-latency operation as stated by Texas Instruments. These characteristics are relevant to industrial networks where variable communication delay can affect machine timing, motion control, monitoring, or supervisory systems. Its low-power design also makes it suitable for embedded equipment where Ethernet connectivity must be added without imposing the operating cost and switching noise of higher-rate alternatives. Typical use cases include industrial Ethernet controllers, factory automation equipment, industrial switches, programmable logic controllers, test systems, and embedded control panels. In these systems, the DP83826IRHBR can bridge an MII-capable MAC to a 10BASE-T or 100BASE-TX copper network while operating across the full industrial temperature interval. System designers should still validate cable reach, magnetic-component selection, clocking, termination, and network timing against the manufacturer documentation. The most important PCB consideration is the high-speed analog and digital interface implementation around the PHY. Place network magnetics and supporting passives according to the reference layout, keep copper paths compact, provide clean supply and ground connections, and observe the required decoupling arrangement. Those measures help control return-path discontinuity, coupling, and signal-integrity degradation around the MII and copper-network interfaces. This page consolidates the verified manufacturer identity, ordering information, package details, temperature range, pricing reference, cross-reference results, and practical design considerations for DP83826IRHBR. It also distinguishes documented facts from parameters that require confirmation in the full Texas Instruments datasheet, helping engineers make faster but more defensible Ethernet-PHY selections.

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DP83826IRHBT - 10/100 Industrial Ethernet PHY | Texas Instruments
DP83826IRHBT

DP83826IRHBT - 10/100 Industrial Ethernet PHY | Texas Instruments

The Texas Instruments DP83826IRHBT is a low-latency 10/100-Mbps Ethernet physical-layer transceiver with MII and RMII interfaces, IEEE 802.3 support, and an industrial operating-temperature range in a 32-pin VQFN RHB package. It supports 10BASE-Te and 100BASE-TX Ethernet protocols for industrial communication systems. An Ethernet PHY is the physical-layer component that translates digital MAC traffic into signals suitable for twisted-pair cabling and recovers those signals at the receiving endpoint. In the networking hierarchy, the DP83826IRHBT is a single-port Ethernet transceiver, placing it between a network media-access controller and the 100-MHz or 10-Mbps copper Ethernet medium. Its MII interface supports integration with conventional Ethernet controllers, while RMII provides a lower-pin-count alternative for suitable embedded processors. Key characteristics include support for both 10BASE-Te and 100BASE-TX, a maximum link rate of 100 Mbps, deterministic low latency, low-power operation, and MII plus RMII interfaces. The industrial-temperature designation makes the device applicable to factory automation, industrial controls, embedded communications equipment, and other systems operating beyond typical commercial environments. The exposed-pad VQFN package also supports compact PCB layouts and improved thermal performance when the pad is connected to an appropriate ground plane. The device is positioned for deterministic industrial Ethernet networks, where repeatable signal timing and predictable link behavior are important. The MII interface provides a parallel data path commonly used by Ethernet controllers, whereas RMII reduces the number of required interface signals when the host controller supports it. Auto-negotiation between 10-Mbps and 100-Mbps operation is part of the IEEE 802.3 feature set identified by the verified distributor data. Typical uses include industrial Ethernet switches, programmable-logic-controller communication ports, industrial gateways, embedded control systems, and test equipment requiring a reliable copper-network interface. In these systems, the DP83826IRHBT can sit between an Ethernet MAC or processor and an isolated or non-isolated transformer-coupled network port, depending on the reference design and regulatory requirements. Designers should confirm the exact pin functions, recommended magnetics, termination network, external clock requirements, exposed-pad layout, and bypass-capacitor values against the manufacturer data sheet before release. PCB signal-integrity and thermal reviews are particularly important because Ethernet PHY performance depends on controlled return paths and a low-impedance ground reference around the device. This product page consolidates verified manufacturer and distributor information, drop-in alternatives supported by the supplied cross-reference results, comparison parameters, and practical design considerations for engineers evaluating the DP83826IRHBT.

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DP83840AVCE - 10/100 Ethernet PHY | Texas Instruments
DP83840AVCE

DP83840AVCE - 10/100 Ethernet PHY | Texas Instruments

Texas Instruments DP83840AVCE is a single-channel Ethernet physical-layer controller for 10 Mb/s and 100 Mb/s copper links, supplied in a 100-pin PQFP package measuring 14 mm by 20 mm. It supports 10BASE-T and 100BASE-TX operation from a 4.75 V to 5.25 V supply and consumes approximately 335 mA. An Ethernet physical layer, or Ethernet PHY, is the interface between a digital network controller and physical copper or fiber media. The DP83840AVCE implements the analog and digital signaling needed to communicate over twisted-pair cabling, while an upper-layer MAC handles packet framing, addressing, and higher-level protocols. Its 10/100 capability allows equipment to support both legacy 10 Mb/s networks and Fast Ethernet links through one physical interface. Key verified characteristics include support for 10/100BASE-T/TX, a 4.75 V to 5.25 V operating supply range, and approximately 335 mA supply current. The 100-pin PQFP package provides the connections required for integrated PHY functions, clocking, power, status, and media-interface signaling. Distributor listings identify the component as a 100-PQFP Ethernet physical-layer controller, and the package is supplied in tray packaging. The device is designed for industrial and embedded systems that require an IEEE 802.3af-compatible Ethernet interface. Relevant implementation considerations include proper magnetics coupling to an RJ45 connector, controlled clock and power distribution, compliant board layout, and isolation from high-energy network transients. Because the DP83840AVCE is listed as obsolete by one distributor, engineers should also confirm the availability of authorized inventory before beginning a new production design. Typical uses include industrial Ethernet equipment, embedded controllers, network interface appliances, test equipment, and communications infrastructure. The 10BASE-T capability can provide compatibility with installed 10 Mb/s infrastructure, while 100BASE-TX supports higher-throughput Fast Ethernet applications. System designers must still evaluate total board area, thermal behavior, component availability, and medium requirements around the obsolete-product status. The main engineering trade-off is legacy-versus-modern network architecture. A 10/100 PHY can connect equipment to older copper networks, but it does not provide the throughput or feature set expected from current multi-gigabit Ethernet designs. For a new platform, engineers should determine whether backward compatibility justifies the 100-pin PQFP footprint and source availability. This page consolidates verified distributor specifications, lifecycle information, sourcing context, and design-focused guidance for engineers evaluating the DP83840AVCE. It also distinguishes confirmed data from specifications that require review of the complete manufacturer datasheet before PCB release.

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DP83843BVJE - 10/100 Ethernet PHY | Texas Instruments
DP83843BVJE

DP83843BVJE - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83843BVJE is a full-feature Ethernet physical-layer transceiver with integrated PMD sublayers, supporting 10BASE-T and 100BASE-X protocols at 10 Mb/s and 100 Mb/s. The device is supplied in an 80-pin QFP package measuring 14 mm by 14 mm. It is designed for 10/100 Mb/s Ethernet LAN implementations and provides the physical-layer interface required by a network media-access controller. An Ethernet PHY is the physical-layer device that connects a digital network controller to copper or fiber media. Within the networking hierarchy, the DP83843BVJE belongs to the Ethernet transceiver and interface-controller category, then to interface ICs and, more broadly, integrated circuits. Supporting both 10BASE-T and 100BASE-X allows one physical-layer design to address legacy 10 Mb/s copper links and 100 Mb/s Fast Ethernet links using either copper twisted-pair or optical-compatible signaling paths. The principal verified feature set includes IEEE 802.3 ENDEC operation, integrated PMD sublayers, support for 10BASE-T, support for 100BASE-X, four transmit drivers, and four receive drivers according to distributor product information. The manufacturer describes the device as a full-feature Physical Layer device intended to simplify implementation of 10/100 Mb/s Ethernet LANs. The 80-QFP package provides 80 physical terminals in a square gull-wing format. Technically, the DP83843BVJE separates Ethernet MAC-facing functions from the analog and digital signaling required by physical media. Its integrated PMD sublayers place the 10BASE-T and 100BASE-X physical coding functions inside the transceiver, reducing the amount of external media-interface circuitry required in a typical LAN design. The available verified excerpt does not provide a complete electrical timing table, register map, magnetics recommendation list, or thermal characterization, so those details must be confirmed in the complete manufacturer datasheet before schematic release. Typical uses include industrial Ethernet equipment, embedded network controllers, network interface cards, routers, switches, and other 10/100 Mb/s LAN equipment. In an industrial or embedded product, the transceiver can sit between an Ethernet MAC and the isolation or line-driver stage required by the selected 10BASE-T or 100BASE-X implementation. Board-level validation remains important because magnetics, clocking, termination, layout, and regulatory testing can determine whether a nominal PHY design functions reliably. Designers should preserve the manufacturer-recommended power, ground, and signal-integrity layout and verify every external network component against the complete datasheet. In particular, the selected Ethernet magnetics or PHY-side interface components must match the supported media mode, while differential routing and return paths require disciplined PCB implementation. Do not infer unsupported rise-time, jitter, temperature, or package thermal values from the distributor summaries. This product record combines the verified manufacturer description, distributor package information, source links, practical application context, and an explicit treatment of unavailable pin-level and electrical data. The comparison and validation notes distinguish confirmed facts from parameters that still require the full datasheet, allowing engineers to assess the DP83843BVJE efficiently without treating missing specifications as confirmed engineering data.

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DP83843BVJE/NOPB - 10/100 Ethernet PHY | Texas Instruments
DP83843BVJE/NOPB

DP83843BVJE/NOPB - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83843BVJE/NOPB is a 10/100-Mbps Ethernet physical-layer transceiver with integrated PMD sublayers, 10BASE-T and 100BASE-X protocol support, fiber and AUI support, and an 80-pin QFP (NNC) package measuring 14 x 14 mm. The DP83843BVJE/NOPB is designed to implement 10/100-Mbps Ethernet local-area networks by providing the physical signaling interface between a network controller and twisted-pair, fiber, or AUI physical media. An Ethernet PHY is a semiconductor within the physical layer of the Ethernet protocol stack. The PHY converts digital data and control signals into the electrical or optical signaling required by network media, while receiving and returning signals from the medium. A 10/100 Ethernet PHY supports both 10-Mbps and 100-Mbps operation, allowing a single physical interface to accommodate legacy and Fast Ethernet networks. The device supports 10BASE-T and 100BASE-X Ethernet protocols through integrated PMD sublayers. Its 100BASE-X capability supports the fiber-oriented path identified by Texas Instruments, while the listed AUI support broadens the physical-media options available to the designer. This combination makes the DP83843 family useful in equipment that must bridge or interface multiple Ethernet physical-layer environments rather than using a copper-only 10/100 PHY. The DP83843BVJE/NOPB is packaged in an 80-pin QFP (NNC), identified in the manufacturer part-details listing as a 14 x 14 mm package with a 0 to 70 C operating-temperature range. The dense 80-lead format provides numerous PHY, media, control, and power-related connections while supporting compact, surface-mount assembly. Pin assignments, exposed supply requirements, clocking provisions, and media-interface details should be taken directly from the manufacturer pin-description tables before schematic capture. Typical uses include industrial Ethernet equipment, communications equipment, network-interface subsystems, embedded LAN designs, and legacy 10/100 infrastructure requiring a physical layer capable of copper and 100BASE-X media support. System designers should pair it with a compatible Ethernet MAC or network controller, validate media magnetics or fiber components against the selected 10BASE-T or 100BASE-X topology, and confirm that the controller interface matches the DP83843 configuration. A key implementation consideration is that Ethernet PHY designs are sensitive to power integrity, clock quality, controlled-impedance routing, and media-interface layout. Place all required bypass capacitors close to their associated supply pins, provide a continuous return path beneath high-speed signal routes, and keep the PHY, magnetics, and connector placement coordinated to minimize differential-impedance discontinuities and coupling into sensitive analog circuitry. This product overview consolidates the manufacturer-supported protocol capabilities, package information, sourcing guidance, comparison criteria, and practical PCB guidance needed to evaluate the DP83843BVJE/NOPB for a 10/100-Mbps Ethernet physical-layer design.

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DP83846AVHG - 10/100 Ethernet PHY | Texas Instruments
DP83846AVHG

DP83846AVHG - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83846AVHG is a single-port 10/100 Ethernet physical-layer transceiver that supports 10BASE-T and 100BASE-TX operation over Category 3 or Category 5 unshielded twisted-pair cables. It is supplied in an 80-pin LQFP package measuring 12 x 12 mm. The integrated physical-layer device provides the media-access-control physical sublayer functions required to connect an Ethernet MAC or embedded controller to a copper network. An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, is the component that translates logical data into electrical signaling compatible with twisted-pair Ethernet infrastructure. Within the network-interface hierarchy, an Ethernet PHY sits between a MAC or processor and an RJ45 magnetics interface. The DP83846AVHG therefore belongs to the interface-IC and network-interface-controller ecosystem rather than acting as a standalone general-purpose processor or memory device. The verified product information identifies the DP83846AVHG as a single 10/100 Ethernet transceiver supporting both 10BASE-T and 100BASE-TX protocols. Its stated cable compatibility includes Category 3 cabling for 10 Mb/s operation and Category 5 unshielded twisted-pair cabling for 100BASE-TX operation. Distributor listings additionally identify the physical package as an 80-terminal square gull-wing LQFP in a 12 x 12 mm outline. Because the PHY combines the PMD sublayers with the Ethernet physical interface, it can simplify the hardware portion of a copper Ethernet design. The host-side interface remains coupled to the function of the associated MAC or embedded Ethernet controller, while the line-side implementation must include the specified magnetics, connector, protection, and external circuitry recommended by the manufacturer. This division keeps protocol handling separate from analog signal transmission across the cable. Typical uses include industrial control equipment, embedded Ethernet gateways, factory automation, communications infrastructure, test equipment, and compact embedded systems that need 10/100-Mb/s copper connectivity. The dual-rate support is useful where equipment must communicate over installed 10-Mb/s or 100-Mb/s networks without requiring a gigabit-only physical layer. The principal design consideration is that PCB layout, magnetic-component selection, cable-side termination, supply quality, and thermal performance can be as important as the nominal PHY capability. Designers should use the manufacturer application guidance for high-speed trace geometry, component placement, isolation, and copper-versus-fibre interfaces where applicable. External Ethernet magnetics are normally required between the PHY and the RJ45 connector unless the chosen interface architecture specifies otherwise. This product page consolidates the verified package, protocol, cable, and distributor information for DP83846AVHG and adds practical application guidance, sourcing questions, and replacement context. It distinguishes documented values from parameters that still require confirmation from the full Texas Instruments datasheet, helping engineers make a traceable initial selection before completing PCB-level validation.

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DP83846AVHG-NS - 10/100 Ethernet Transceiver | Texas Instruments
DP83846AVHG-NS

DP83846AVHG-NS - 10/100 Ethernet Transceiver | Texas Instruments

The Texas Instruments DP83846AVHG-NS is a single-port 10/100 Ethernet physical-layer transceiver in an 80-LQFP (12 mm x 12 mm) package. The device is identified as a commercial-grade Ethernet transceiver for applications requiring 10BASE-T and 100BASE-TX connectivity, with an 80-pin surface-mount LQFP footprint. Its primary function is to provide the physical-layer interface between a network controller or embedded processor and an Ethernet cable. An Ethernet physical-layer transceiver, or PHY, converts logical data into electrical signals suitable for twisted-pair cabling and reconstructs received signals for the digital network controller. The DP83846AVHG-NS belongs to the broader category of Ethernet interface ICs, network interface controllers, and communication semiconductors. A PHY is commonly used when a processor, programmable logic device, industrial controller, or test equipment does not include a compatible Ethernet physical layer. The verified product information identifies the DP83846AVHG-NS as a single 10/100 Ethernet transceiver in an 80-LQFP (12x12) package. The commercial temperature grade is also identified for the related DP83846AVHG listing. The package provides 80 terminals with gull-wing leads and a square body, allowing the device to be assembled using standard surface-mount PCB processes. The Ethernet capability supports 10 Mb/s and 100 Mb/s network operation, while the exact PHY electrical ratings, media-dependent interface details, and performance limits should be confirmed in the manufacturer datasheet before design release. Typical applications include industrial Ethernet equipment, embedded control systems, network interface modules, instrumentation, printer controllers, telecommunications equipment, and communication adapters. The 80-LQFP package is particularly appropriate for multilayer PCBs where a high pin count is required to expose separate digital, analog, power, clock, and media-side connections. The package footprint also makes the device suitable for designs migrating from earlier 10/100 Ethernet PHY implementations when the board footprint and functional requirements remain compatible. When placing this device on a PCB, follow the manufacturer's recommended decoupling, analog-supply layout, clock, reset, and differential-pair routing guidance. Keep the Ethernet magnetics and cable-side routing away from noisy digital and switching-supply paths. Because the exact pin assignments, recommended capacitor values, and supported operating conditions are not stated in the retrieved product snippets, use the official datasheet pin description and application circuit before assigning PCB tracks. This product page combines the verified package and Ethernet-class information with application guidance, replacement context, and design-oriented selection notes. It is intended to help engineers identify whether the DP83846AVHG-NS matches a required 10/100 Ethernet PHY, commercial-grade 80-LQFP footprint, and surface-mount assembly process.

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DP83848CVVX/NOPB - 10/100 Ethernet PHY | Texas Instruments
DP83848CVVX/NOPB

DP83848CVVX/NOPB - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83848CVVX/NOPB is a single-port 10/100-Mbps Ethernet physical-layer transceiver with MII, RMII, and SNI interfaces, supplied in a 48-pin LQFP (PT) package. The commercial-temperature device operates from 0°C to 70°C, uses a 3.3 V supply, and supports IEEE 802.3u networking operation. Its 48-pin 7 x 7 mm surface-mount package provides a defined option for embedded Ethernet designs requiring a conventional parallel media-independent interface. An Ethernet physical-layer transceiver, or Ethernet PHY, is the semiconductor component that connects a digital network controller to copper cabling. It belongs to the hierarchy transceiver IC > Ethernet interface IC > network interface > semiconductor. Unlike a media-access controller, the DP83848C does not implement the complete Ethernet protocol stack; instead, it handles physical signaling, link negotiation, line coding, and conversion between framed digital data and Manchester-coded or scrambled 10BASE-T and 100BASE-TX signals. Key features include support for both 10 Mbps and 100 Mbps operation, automatic link negotiation, SNI support, and JTAG support. The manufacturer identifies the device as a single-port Ethernet PHY with MII, RMII, and SNI connectivity. These interfaces let the same physical design support controllers using a parallel MII connection, reduced-pin RMII connection, or simple serial network interface. The interface choice affects board area, signal timing, firmware support, and host-port requirements. The DP83848C architecture separates the digital host interface from the analog copper-network front end. MII provides separate parallel paths for transmit and receive data, clock, carrier sense, and collision indications. RMII reduces the number of host signals by sharing clocks and control lines, while SNI simplifies lower-throughput serial networking designs. JTAG support adds a standardized boundary-scan path for board-level test and manufacturing inspection when the host system enables it. Typical uses include industrial Ethernet controllers, embedded network equipment, print servers, industrial automation modules, test equipment, and customer-premises network interfaces. Commercial-temperature operation makes the part appropriate for indoor systems where ambient temperatures remain within 0°C to 70°C. A system requiring operation outside that range should use a temperature-rated DP83848 family variant rather than assuming equivalent environmental performance. Designers should provide the required 3.3 V supply, decoupling, precision bias resistor network, magnetics, and compliant Ethernet magnetic isolation according to the manufacturer datasheet. Keep high-speed analog routing controlled, use the recommended reference and passive networks, and follow the exposed-pad and thermal-layout guidance for the LQFP package. Use the datasheet pin-description and layout examples when assigning signals and planning the board stack-up. This product guide combines the manufacturer interface descriptions, package and temperature information, lifecycle data, comparison details, and practical implementation guidance. It also distinguishes documented drop-in candidates from options that differ in temperature grade, qualification, or packaging, helping engineers assess PCB reuse and sourcing decisions before schematic release.

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DP83848EVV/NOPB - 10/100 Ethernet PHY | Texas Instruments
DP83848EVV/NOPB

DP83848EVV/NOPB - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83848EVV/NOPB is a single-port 10/100-Mbps Ethernet physical-layer transceiver in a 48-pin LQFP package. It belongs to the DP83848I family of Ethernet PHY devices developed for industrial communications equipment. The part combines the physical-layer functions required to communicate with an Ethernet MAC over twisted-pair cabling, while the DP83848IVV/NOPB member documented by Texas Instruments is identified as an industrial-temperature device supporting SNI and JTAG. An Ethernet PHY is the analog and digital interface layer between a network controller and physical copper cable. It translates MAC-facing data through an MII or RMII interface, applies line encoding and signaling, and recovers data from the received physical signal. In this product hierarchy, the Ethernet PHY sits above the Ethernet transceiver function and below the Ethernet interface IC category, providing the physical link required by industrial Ethernet equipment. The DP83848EVV/NOPB is identified in the product records as an Ethernet transceiver with a 48-LQFP package. The related DP83848IVV/NOPB listing identifies the package as 7 x 7 mm and specifies a temperature range of -40°C to +85°C. The related DP83848IVVX/NOPB listing is explicitly presented as another member of the same DP83848I family, allowing package and feature-level comparison during replacement qualification. Detailed electrical ratings for the exact EVV suffix must be confirmed in the applicable National Semiconductor or Texas Instruments documentation before production release. The device family is positioned for industrial Ethernet systems where a dedicated PHY connects an embedded processor, programmable logic, or industrial controller to a 10BASE-T or 100BASE-TX network. Its integrated PHY reduces the number of external line-interface components required on a controller board, while standardized MAC-facing interfaces let the PHY operate with compatible Ethernet controllers. The exact supported media, interface modes, clocking requirements, and strap options should be selected from the pin-description and operating-information tables in the manufacturer datasheet. Typical design contexts include industrial Ethernet switches, embedded control systems, factory automation equipment, serial-to-Ethernet gateways, instrumentation, and network-enabled test equipment. In these applications, the DP83848EVV/NOPB handles the physical layer while the host processor manages packet processing and network services. Board-level implementation still requires a suitable Ethernet magnetics section, compliant cable-side routing, a stable clock source, and careful separation of sensitive analog and digital signals. For layout, place the PHY and its supporting passive network close to the Ethernet connector or cable entry point to minimize differential-pair impedance discontinuity and insertion loss. Keep the 10/100-Mbps magnetic-device side of the interface physically compact, provide the power and decoupling networks recommended by the family documentation, and route differential pairs as a controlled-impedance pair. Do not substitute the EVV suffix with IVV or IVVX without reviewing the exact pin, temperature, interface, and ordering-code differences. This product page combines the available manufacturer and distributor information with practical Ethernet-PHY placement guidance, package-aware alternatives, and an explicit verification checklist. It is intended to accelerate sourcing and board review while preserving the distinction between documented facts and parameters that still require confirmation from the exact suffix datasheet and current TI product page.

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DP83848HSQ/NOPB - 10/100 Ethernet PHY | Texas Instruments
DP83848HSQ/NOPB

DP83848HSQ/NOPB - 10/100 Ethernet PHY | Texas Instruments

The Texas Instruments DP83848HSQ/NOPB is a single-channel 10/100-Mbps Ethernet PHY transceiver with a 3 V to 3.6 V supply range, packaged in a 40-pin WQFN (RTA) package with an exposed pad. It is designed for space-sensitive embedded systems and supports Ethernet link distances beyond 137 meters of Cat-V cable. The device also provides Auto-MDIX, which removes the need to distinguish between straight-through and crossover cabling. An Ethernet PHY is the physical-layer device that converts digital data from a controller into Ethernet signals and converts received cable signals back into digital data. In the broader networking hierarchy, the PHY sits between a MAC or embedded processor and a transformer-coupled RJ45 interface. The DP83848HSQ/NOPB is therefore used when a system needs a dedicated 10/100-Mbps copper-Ethernet physical layer rather than a higher-speed multi-port Ethernet controller. The main device characteristics are its single-channel 1/1 transceiver configuration, 10/100-Mbps data-rate support, 3 V to 3.6 V operating supply, and extended-temperature capability from -40 C to +125 C. The 40-WQFN (RTA) package is intended for surface-mount designs requiring a compact footprint. Auto-MDIX simplifies physical installation by supporting automatic crossover detection and correction. The DP83848x family is positioned for embedded systems where interoperability, reliability, and compactness are important. The manufacturer describes performance beyond the IEEE specifications, while the product family supports the common MII serial management interface identified in the component listings. The device is used as the physical interface between an embedded Ethernet MAC and the external magnetics and RJ45 connector. Typical applications include industrial embedded controllers, automotive electronics, communications equipment, and network appliances that require a 10/100-Mbps copper Ethernet port. The extended-temperature range makes the DP83848HSQ/NOPB suitable for systems exposed to temperature extremes, provided that the complete board, magnetics, and enclosure are evaluated for the same environmental requirements. When laying out the PCB, place the PHY close to the transformer and RJ45 connector to minimize high-frequency differential-pair routing and return-path discontinuity. Follow the manufacturer pin-description table and layout guidance for supply decoupling, exposed-pad thermal connection, clock requirements, and signal return paths. Use the exact package drawing and pin assignment for the production design rather than relying on a generic QFN footprint.

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