DP83865BVH - 8/8 Gigabit Ethernet PHY | Texas Instruments
N.º da peça: DP83865BVH ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.01 | $0,01 |
| 10 | $0.01 | $0,10 |
| 100 | $0.01 | $1,00 |
| 500 | $0.01 | $5,00 |
| 1.000 | $0.01 | $10,00 |
DP83865BVH Visão geral
An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, is the semiconductor layer that converts logical data transmitted by a network controller into electrical or optical signals suitable for a communications medium. Within the Ethernet hierarchy, a PHY sits below the MAC and above the physical medium. For copper Ethernet, the PHY handles encoding, signaling, clock recovery, link negotiation, and reception of data transmitted over twisted-pair cabling.
The DP83865BVH is identified as an 8/8 transceiver, providing eight transmit and eight receive channels for parallel network-interface implementations. Verified source data identifies 10BASE-T and 100BASE-TX support and notes integrated PMD sublayers associated with 1000BASE-T operation. This makes the device relevant to multiport Ethernet switches, routers, network interface controllers, and industrial communication equipment requiring several copper ports.
The 128-PQFP package is physically substantial compared with compact QFN Ethernet PHYs because it exposes a broad high-speed parallel interface, multiple PHY channels, supply rails, reference clocks, and copper-network connections. Its surface-mount construction supports automated assembly, but careful power-plane distribution, controlled clock routing, and high-speed signal-integrity management remain necessary in multi-channel Ethernet designs.
Typical applications include 8-port Gigabit Ethernet switches, network interface cards, routers, industrial Ethernet equipment, and embedded communication systems. The 8/8 organization can reduce the number of discrete PHY devices required when several copper ports share one board, although system partitioning, thermal distribution, and magnetics selection must still be evaluated.
For a new design, engineers should use the official Texas Instruments datasheet and pinout rather than assigning connections solely from generic Ethernet conventions. Verify every supply rail, transceiver channel, clock input, resistor network, magnetic-interface component, and exposed thermal or supply connection against that document before layout release.
This page consolidates verified distributor specifications, package data, sourcing links, application context, and compatibility cautions. Its key information gain is the distinction between a true pin-to-pin replacement and a merely similar 8/8 Ethernet PHY, which prevents an electrically or mechanically invalid substitution.
Alternativas drop-in para DP83865BVH — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasDP83865BVH Especificações
| Product Type | 8/8 Ethernet transceiver |
| Ethernet Support | 10/100/1000 Ethernet |
| Physical-Layer Standards | 10BASE-T, 100BASE-TX, and 1000BASE-T |
| Number of Transmit Channels | 8 channels |
| Number of Receive Channels | 8 channels |
| Minimum Supply Voltage | 1.71 V |
| Maximum Supply Voltage | 3.465 V |
| Named Supply Rails | 1.8 V and 2.5/3.3 V |
| Encapsulamento | 128-PQFP (14 x 20 mm) |
| Contagem de pinos | 128 pins |
| Tipo de montagem | Surface mount |
| Temperature Grade | Commercial |
| Minimum Operating Temperature | 0 C |
| Qualification | Not qualified |
| PMD Integration | Integrated PMD sublayers for 1000BASE-T support |
| Status RoHS | unknown |
Guia de Configuração de Pinos do DP83865BVH 128-pqfp (14 x 20 mm)
Configuração de pinos para DP83865BVH (pacote 128-pqfp (14 x 20 mm)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para DP83865BVH.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
DP83865BVH é adequado para 6 aplicaçãos: 8-Port Gigabit Ethernet Switch, Network Interface Card, Industrial Ethernet Gateway, Network Router, Embedded Communications Controller, Industrial Control Gateway.
8-Port Gigabit Ethernet Switch
The DP83865BVH's verified 8/8 organization aligns with a switch design requiring eight transmit and eight receive channels for copper Ethernet ports. Its stated support for 10BASE-T, 100BASE-TX, and 1000BASE-T allows a common physical-layer device to cover multiple rates. In implementation, the PHY channels would connect to a compatible MAC or switching fabric through clocked parallel interfaces and to each copper port through suitable magnetics. The 128-PQFP package offers extensive routing and power connectivity but occupies substantially more board area than compact QFN PHYs. Before schematic approval, verify the complete 128-pin map, per-channel timing, clock distribution, firmware support, and thermal behavior against the official datasheet.
Recomendado
Network Interface Card
The DP83865BVH can be evaluated for a network interface card that needs multiple copper-facing Ethernet channels rather than a single isolated port. Its verified 8/8 configuration and 10, 100, and 1000 Mb/s physical-layer support provide a basis for multiport NIC architectures. A practical implementation must synchronize eight channels, route high-speed digital signals with controlled impedance, and provide isolated copper interfaces. Compared with a small single-port PHY, the 14 x 20 mm, 128-PQFP package simplifies access to many pins but increases routing density, decoupling complexity, and board-space demand. Firmware, media compatibility, and host-interface support must be proven before production.
Recomendado
Industrial Ethernet Gateway
The DP83865BVH's eight transmit and eight receive channels make it a candidate for an industrial Ethernet gateway that bridges multiple external network ports to embedded control electronics. Supporting 10BASE-T, 100BASE-TX, and 1000BASE-T allows legacy and high-speed copper links within one design, provided the selected magnetics and firmware meet each rate's requirements. The commercial temperature grade and 0 C minimum operating temperature should be checked against the gateway's actual enclosure temperature. Robust design also requires careful isolation, grounding, surge protection, and separation between external copper interfaces and sensitive control circuitry; none of those protection parameters are specified in the supplied data.
Recomendado
Network Router
A multiport router can benefit from the DP83865BVH's verified 8/8 channel count when several copper Ethernet interfaces must terminate in a centralized physical layer. The device supports 10BASE-T, 100BASE-TX, and 1000BASE-T operation, matching legacy LAN ports and Gigabit uplink requirements. In a router PCB, clock and parallel-data routing become particularly important because eight channels can magnify skew, crosstalk, and power-distribution effects. The large 128-PQFP footprint is easier to probe than a dense BGA but demands careful escape routing and a stable multi-rail power tree. Final selection requires validated MAC timing, boot firmware, packet-processing assumptions, and thermal performance.
Recomendado
Embedded Communications Controller
The DP83865BVH can serve as the external Ethernet physical layer for an embedded communications controller that requires several cable-facing channels. Its eight transmit and eight receive paths can consolidate copper-network termination while the host processor or communications ASIC manages higher layers. The verified 1.71 V to 3.465 V supply envelope and named 1.8 V and 2.5/3.3 V rails require a rail-by-rail design review. Because no exact pinout, clock specification, or management-interface detail is included in the supplied data, engineers must not assign host signals or assume register compatibility from the part number alone.
Recomendado
Industrial Control Gateway
For an industrial control gateway, the DP83865BVH's verified 8/8 Ethernet organization may be useful where the equipment exposes multiple service or plant-network ports. Its support for 10BASE-T, 100BASE-TX, and 1000BASE-T enables different copper-network tiers, but the gateway must still implement media magnetics, isolation, diagnostics, and software support. Because the listed component is commercial grade with a 0 C minimum, deployments below that temperature require another qualified option. PCB planning should keep external copper interfaces away from precision analog and safety-sensitive circuitry, while grounding and surge-current paths must follow the complete manufacturer reference design.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DP83865BVH — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Principais diferenciais
- Eight-channel physical-layer consolidation (vs Single-port Ethernet PHY class)
- Multi-rate copper Ethernet support (vs DP83864 replacement proposal)
- Inspection-friendly surface-mount package (vs Unverified BGA-package alternatives)
Notas de projeto
Do not begin layout from a generic 128-pin PQFP symbol. Obtain and cross-check the exact DP83865BVH pin table, package drawing, exposed connections, and recommended land pattern. The supplied data confirms a surface-mount 128-PQFP package measuring 14 x 20 mm, but it does not enumerate pin names. Generic-library mapping can silently connect power, clocks, copper I/O, or management signals incorrectly.
Build the power tree only after identifying every required rail in the official datasheet. Verified marketplace data gives a 1.71 V to 3.465 V overall range and identifies 1.8 V and 2.5/3.3 V supplies, but these values do not define each internal rail's tolerance, sequencing, current, or decoupling requirement. Place specified bulk and high-frequency decoupling at the associated pins and verify return-current continuity before high-speed signal routing.
Treat reference clocks, parallel MAC or switch-fabric interfaces, and copper-facing network connections as separate high-speed design domains. Use the manufacturer's topology and trace guidance for controlled impedance, length matching, return paths, and isolation. Eight channels can magnify skew and crosstalk; validate the complete clock and data topology in simulation and measurement rather than assuming identical routing eliminates channel-to-channel variation.
A similar Ethernet-PHY description does not prove replaceability. The verified comparison material specifically warns that DP83865BVH is not a direct DP83864 replacement because pin configuration and internal register mapping differ. Require exact footprint, pin-by-pin, electrical, clock, firmware, and media compatibility for any substitution. Do not infer equivalence from the shared DP83865 family name or a matching PQFP pin count.
Informações de conformidade
The supplied records mention a commercial temperature grade and not-qualified status but provide no substantiated RoHS, REACH, halogen-free, lead-free, conflict-minerals, or automotive-qualification statement. One marketplace page shows a RoHS/compliance image, but no compliance conclusion was captured.
