DP83865BVH - 8/8 Gigabit Ethernet PHY | Texas Instruments
部品番号: DP83865BVH ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: DP83865BVH — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストDP83865BVH 仕様
| 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 |
| パッケージ | 128-PQFP (14 x 20 mm) |
| ピン数 | 128 pins |
| 実装タイプ | Surface mount |
| Temperature Grade | Commercial |
| Minimum Operating Temperature | 0 C |
| Qualification | Not qualified |
| PMD Integration | Integrated PMD sublayers for 1000BASE-T support |
| RoHS ステータス | unknown |
DP83865BVH 128-pqfp (14 x 20 mm) ピン配置ガイド
DP83865BVH (128-pqfp (14 x 20 mm) パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: DP83865BVH.
詳細は データシート をご参照ください。
主な用途
DP83865BVH の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DP83865BVH — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
主な差別化要因
- 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)
設計ノート
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.
コンプライアンス情報
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.
