LAN9252TV/ML - 2/3-Port EtherCAT Controller | Microchip
部品番号: LAN9252TV/ML ✓ 生産中LAN9252TV/ML 概要
An EtherCAT slave controller, or ESC, is a dedicated semiconductor that manages EtherCAT datagrams and distributed-device communication. The LAN9252 belongs to the broader EtherCAT controller and network-interface IC hierarchy, combining protocol processing, Ethernet physical-layer transceivers, and host-register access in one device. Its two integrated PHYs support copper Ethernet links, while 100BASE-FX operation can be implemented through an external fiber transceiver.
Each integrated Ethernet PHY contains a full-duplex 100BASE-TX transceiver capable of 100 Mbps 100BASE-TX operation. HP Auto-MDIX simplifies installation by supporting both direct and crossover LAN cables. The controller also provides the SPI interface identified for this device, allowing a host processor or microcontroller to access its control and status registers. The 64-QFN package supports compact integration into industrial control boards.
The 2/3-port architecture is suitable for EtherCAT topologies in which a controller must participate in one or more network segments. Combining the ESC and two Ethernet PHYs reduces the number of separate interface components required on the board. A 100BASE-TX network operating at 100 Mbps is appropriate for cyclic industrial traffic, where deterministic device communication and compact integration are more important than maximum Ethernet line rate.
Typical applications include servo drives, programmable logic controllers, industrial robots, machine-tool controllers, distributed I/O modules, and EtherCAT master or slave interface equipment. In these systems, the LAN9252 can connect local EtherCAT processing to copper Ethernet ports, while its register interface allows an embedded controller to configure ports, monitor link status, and exchange process data.
Designers should use the manufacturer datasheet pin-description table when assigning PCB nets and should preserve the required Ethernet magnetics, decoupling, and exposed-pad layout. Thermal performance depends on the exposed pad, copper area, airflow, and the device's actual switching loss. Because this controller integrates high-speed digital processing and Ethernet transceivers, controlled-reference layout and uninterrupted ground connectivity are essential for reliable operation.
This product page combines the manufacturer's functional description, package and interface data, official datasheet, and application-note migration information with practical comparison and design guidance. It identifies the key distinction between LAN9252-family devices and highlights where package matching alone is insufficient to establish true drop-in compatibility.
ドロップイン代替品: LAN9252TV/ML — 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。
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LAN9252TV/ML 仕様
| Product Type | 2/3-port EtherCAT slave controller |
| Integrated Ethernet PHY Count | 2 PHYs |
| Ethernet Line Rate | 100 Mbps |
| Copper Ethernet Support | 100BASE-TX |
| Fiber Ethernet Support | 100BASE-FX through an external fiber transceiver |
| Ethernet Duplex Mode | Full duplex |
| Auto-MDIX | HP Auto-MDIX |
| Host Interface | SPI |
| Supported Port Configuration | 2 or 3 ports |
| 電源電圧 | 1.8 V, 2.5 V, or 3.3 V |
| パッケージ | 64-QFN (9 x 9 mm) |
| ピン数 | 64 pins |
| 実装タイプ | Surface mount |
| RoHS ステータス | Compliant |
| Integrated Transceiver Type | 100BASE-TX full-duplex transceiver |
| Cable Support | Direct-connect or crossover LAN cables with HP Auto-MDIX |
| Ethernet Media Compatibility | 10 Mbps and 100 Mbps device-category listing |
| Primary Market | Industrial automation and EtherCAT systems |
| Packaging Format | Tape and reel |
| Standard Reel Quantity | 3,000 units |
LAN9252TV/ML 64-qfn (9 x 9 mm) ピン配置ガイド
LAN9252TV/ML (64-qfn (9 x 9 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: LAN9252TV/ML.
詳細は データシート をご参照ください。
主な用途
LAN9252TV/ML の用途: 6 件s: EtherCAT Servo Drive Interface, Programmable Logic Controller Ethernet Module, Industrial Robot Controller, Machine-Tool Control System, Distributed EtherCAT I/O Module, EtherCAT Fiber Segment Interface.
EtherCAT Servo Drive Interface
The LAN9252TV/ML fits a compact EtherCAT servo-drive controller because it combines 2/3-port EtherCAT slave processing with two integrated 100BASE-TX PHYs. Each PHY supports full-duplex 100 Mbps operation, allowing cyclic industrial traffic to reach the drive through copper Ethernet without two separate discrete PHY circuits. A host processor can use the SPI interface to access controller registers, configure ports, and monitor link status. The trade-off is that this controller supports 100BASE-TX rather than Gigabit Ethernet, so its use is appropriate where the EtherCAT network and drive architecture are designed for 100 Mbps.
Programmable Logic Controller Ethernet Module
The LAN9252TV/ML is suitable for an EtherCAT-capable PLC or motion-control module where board area and component count are important. Its 2/3-port architecture supports participation in more than one network segment, while the two integrated 100BASE-TX transceivers provide full-duplex 100 Mbps links. The SPI interface allows a supervisory microcontroller to configure the EtherCAT controller and exchange status information. This implementation is most appropriate when the PLC's fieldbus architecture is limited to EtherCAT at 100 Mbps and the system does not require higher copper Ethernet bandwidth.
Industrial Robot Controller
A robot controller can use the LAN9252TV/ML to consolidate EtherCAT communication and copper Ethernet physical-layer handling in a 64-QFN 9 x 9 mm device. The two internal PHYs support full-duplex 100BASE-TX links at 100 Mbps, and HP Auto-MDIX permits direct-connect or crossover cables for flexible field installation. A host processor can manage configuration through SPI, reducing the number of separate network-interface devices on the controller board. Designers should reserve space for compliant magnetics, isolation requirements, and protection appropriate to the robot installation.
Machine-Tool Control System
The LAN9252TV/ML fits machine-tool control electronics that require deterministic industrial networking and compact integration. Its EtherCAT slave-controller function handles device communication, while two integrated 100BASE-TX PHYs provide full-duplex 100 Mbps copper links with HP Auto-MDIX cable flexibility. The SPI host interface separates network processing from the machine's real-time control logic. Because the copper interface is limited to 100BASE-TX, the architecture should match the EtherCAT segment's bandwidth and topology rather than adding unnecessary Gigabit Ethernet circuitry.
Distributed EtherCAT I/O Module
The LAN9252TV/ML can form the communications core of a compact distributed I/O module. Two integrated full-duplex 100BASE-TX PHYs support 100 Mbps copper links, and the 2/3-port arrangement allows the module to participate in segmented EtherCAT networks without separate PHY packages. A local microcontroller can use the SPI interface for configuration and status reporting while the ESC handles EtherCAT traffic. This arrangement reduces board area, although the final design must account for connector magnetics, surge protection, ground isolation, and the electrical requirements of the attached sensors and actuators.
EtherCAT Fiber Segment Interface
The LAN9252TV/ML can support a mixed copper-and-fiber EtherCAT design because the manufacturer identifies 100BASE-FX operation through an external fiber transceiver. Its built-in PHYs handle 100BASE-TX copper connections, while an appropriately selected external transceiver can extend a network segment over fiber. This arrangement is useful in industrial installations where electrical isolation, distance, or routing through electrically noisy areas makes fiber preferable. The external transceiver must be selected for electrical compatibility, and its data path must be integrated according to the manufacturer reference guidance.
エンジニアリング参考データ: LAN9252TV/ML — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
設計ノート
Use the official LAN9252 datasheet pin-description table as the authoritative source for all 64-QFN connections and the exposed thermal pad. Preserve the recommended land pattern, thermal-pad vias, and local supply decoupling exactly. A 9 x 9 mm QFN can create routing congestion around the exposed pad, so check escape geometry for the SPI signals, clock requirements, and both Ethernet ports before releasing the PCB footprint.
Route each 100BASE-TX differential pair as a controlled-impedance pair with continuous reference planes and minimal stubs. Keep Ethernet traces away from switching nodes and noisy digital return paths, and provide a low-impedance ground connection under the controller and exposed pad. Apply Ethernet-magnetics and connector placement guidance from the manufacturer because poor return paths can degrade signal integrity even when the controller itself is correctly powered and configured.
Do not treat the related LAN9252V/ML, LAN9253, or LAN9353 devices as automatic replacements merely because some use a 64-QFN package. Microchip's AN3621 migration guide identifies pin and configuration-strap differences between LAN9252-family and later controllers. Before substitution, compare supply rails, PHY implementation, strap requirements, interrupt behavior, firmware, and every affected PCB net; otherwise a footprint match can create an inoperable or unsafe board.
Implement separate local decoupling paths for the digital controller and both Ethernet PHY sections, following the capacitor values and placement shown in the manufacturer datasheet. Keep the high-current return from the Ethernet magnetics and external circuitry out of the sensitive controller ground path. The available documentation identifies 1.8 V, 2.5 V, and 3.3 V operation, so verify the complete board's rail plan against the selected device configuration and external-transceiver requirements.
Estimated thermal planning should begin with the controller's actual dissipation under the selected clock, EtherCAT traffic, PHY activity, and ambient conditions. No verified junction-temperature or thermal-resistance figures are listed on this page, so do not assign a numerical limit without consulting the datasheet. Validate the exposed-pad copper area, via pattern, enclosure airflow, and temperature rise because the compact QFN relies heavily on board heat spreading.
コンプライアンス情報
RoHS compliance is identified in the LAN9252TV/ML component listing. No verified automotive qualification, REACH, lead-free, halogen-free, or conflict-minerals statement was identified for this exact orderable MPN.
