LAN9253T-I/R4X 3-Port EtherCAT Controller | Microchip
料号： LAN9253T-I/R4X ✓ 量产中LAN9253T-I/R4X 概述
An EtherCAT Slave Controller, or ESC, is a semiconductor that manages cyclic industrial Ethernet communication between a controller and fieldbus devices. The LAN9253 combines EtherCAT protocol processing, dual Ethernet physical layers, host-interface logic, and synchronization resources in one device. This integration reduces component count in servo drives, I/O modules, robotics controllers, and other EtherCAT slave equipment while supporting a compact 9 x 9 mm industrial package.
The principal features include support for two or three EtherCAT ports, two integrated Ethernet PHYs with full-duplex 100BASE-TX operation, HP Auto-MDIX for direct and crossover cable connections, 8 Fieldbus Memory Management Units, and 8 SyncManagers. The integrated PHYs connect the device to an EtherCAT network without requiring separate Ethernet transceiver components. Eight FMMUs organize process-data and mailbox transfer, while the eight SyncManagers support coordinated exchange of outputs, inputs, and synchronization events.
The LAN9253 family is designed for embedded EtherCAT devices using 8-bit or 16-bit host buses, with additional support for 32-bit embedded controllers through its 8-bit or 16-bit bus interface. Its integrated network interface and protocol resources make it a practical single-chip solution for compact EtherCAT nodes. The operating architecture allows industrial network traffic to be handled alongside deterministic cyclic data exchange and distributed clock synchronization.
Typical applications include EtherCAT servo amplifiers, distributed I/O modules, motion-control equipment, industrial robotics, machine vision, PLC expansion modules, and embedded control systems. The two integrated PHYs are especially useful where a slave device requires one upstream network connection and one downstream daisy-chain port. Systems requiring additional ports can connect the external-port resources to compatible Ethernet interface hardware according to the manufacturer hardware design guidance.
PCB implementation requires careful attention to the exposed thermal pad, mixed-signal supply distribution, high-speed Ethernet differential routing, and the host-bus layout. Keep the Ethernet pairs impedance-controlled and routed as short as practical, provide the required bypass capacitance at the supply pins, and use solid ground-plane continuity beneath the QFN. The exposed pad must be connected to the appropriate ground plane and thermal-via structure specified by the manufacturer design guidance.
This page consolidates the confirmed LAN9253 capabilities, practical PCB considerations, sourcing guidance, and same-footprint family alternatives. For a new PCB, treat the manufacturer datasheet and reference design as the controlling sources for pin assignment, electrical limits, layout geometry, and complete operating conditions.
直接替换替代料： LAN9253T-I/R4X ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LAN9253T-I/R4X （相同外形与封装尺寸） ——差异在于 Package, SyncManagers, Auto-MDIX, Device Type, Integrated Ethernet PHYs.
LAN9253-I/R4X
✅ 直接替换联系询价
查看数据手册 →LAN9253T/R4X
✅ 直接替换联系询价
查看数据手册 →LAN9253/R4X
✅ 直接替换联系询价
查看数据手册 →LAN9253T-I/R4X 规格参数
| Product Type | EtherCAT Slave Controller (ESC) |
| Supported EtherCAT Port Configuration | 2/3 ports |
| Integrated Ethernet PHY Count | 2 PHYs |
| Ethernet Speed | 100 Mbps |
| Ethernet Physical Layer | 100BASE-TX |
| Ethernet Duplex | Full duplex |
| Auto-MDIX Support | HP Auto-MDIX |
| Fieldbus Memory Management Units | 8 FMMUs |
| SyncManagers | 8 SyncManagers |
| Variable Core Supply Voltage | 1.8 V to 3.3 V |
| Host Interface Bus Width | 8-bit or 16-bit |
| 32-Bit Embedded Controller Support | Supported through 8-bit or 16-bit bus |
| Package Type | 64-pin QFN with exposed pad |
| Package Dimensions | 9 x 9 mm |
| 安装类型 | Surface mount |
| Packaging Format | Tape and reel |
LAN9253T-I/R4X 9 x 9 mm 引脚配置指南
LAN9253T-I/R4X（9 x 9 mm 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： LAN9253T-I/R4X.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LAN9253T-I/R4X 适用于 6 应用s: Industrial EtherCAT I/O Modules, Servo Drive EtherCAT Interfaces, Industrial Robotics Controllers, Motion-Control Equipment, Machine Vision and Inspection Systems, PLC and Embedded Automation Nodes.
Industrial EtherCAT I/O Modules
The LAN9253T-I/R4X is well suited to distributed I/O modules because it integrates two 100BASE-TX PHYs with 8 Fieldbus Memory Management Units and 8 SyncManagers in a 64-pin 9 x 9 mm QFN. One integrated PHY can connect to the upstream EtherCAT segment while the other supports downstream daisy-chain wiring. The 8-bit or 16-bit host bus allows a compact microcontroller to manage process data without requiring a separate Ethernet transceiver. HP Auto-MDIX improves installation flexibility by accommodating direct or crossover connections. Before layout release, confirm the module's isolation strategy, EMC requirements, environmental limits, and thermal design against the complete manufacturer documentation.
推荐
Servo Drive EtherCAT Interfaces
The LAN9253T-I/R4X provides the EtherCAT communication engine required in a compact servo-drive controller. Its two integrated full-duplex 100 Mbps PHYs support an upstream controller link and a downstream port in a daisy-chain topology, while 8 SyncManagers help organize cyclic command and status exchanges. The 1.8 V to 3.3 V variable core supply range supports integration into mixed-voltage control hardware. Its 8-bit or 16-bit host interface can connect to a digital signal controller or real-time microcontroller. Design the exposed-pad thermal path and differential Ethernet routing carefully, and verify that the selected EtherCAT variant matches the servo drive's electrical and qualification requirements.
推荐
Industrial Robotics Controllers
A robotic controller can use the LAN9253T-I/R4X to add deterministic EtherCAT connectivity without a discrete network transceiver. The device's 2/3-port architecture, dual integrated 100BASE-TX PHYs, and HP Auto-MDIX capability are useful in cabinet-mounted automation equipment where fieldbus and motor-control subsystems share a controller. Eight FMMUs and eight SyncManagers support organized cyclic communication between the EtherCAT master and local drive or I/O functions. The compact QFN64 package helps conserve board area, but its exposed pad and high-speed Ethernet nets still require deliberate thermal and layout planning. Mechanical vibration, temperature range, EMC performance, and functional safety should be evaluated at the complete product level.
推荐
Motion-Control Equipment
The LAN9253T-I/R4X is appropriate for motion-control equipment requiring an embedded EtherCAT slave port and deterministic process-data exchange. Its two full-duplex 100BASE-TX PHYs support EtherCAT line topology, while the 8-bit or 16-bit interface allows motion-control logic to exchange position, velocity, and control commands efficiently. The 64-pin 9 x 9 mm QFN permits integration into space-constrained drive electronics. Designers should preserve controlled Ethernet impedance, provide local supply decoupling, and connect the exposed thermal pad to an effective ground and via structure. The device's EtherCAT protocol resources do not replace application-specific functional safety, braking, or safe-torque-off functions, which must be implemented at the system level.
推荐
Machine Vision and Inspection Systems
Machine-vision controllers and inspection equipment can use the LAN9253T-I/R4X as a compact EtherCAT interface for synchronizing cameras, encoders, sensors, and motion axes. Eight SyncManagers support structured cyclic exchanges, and the two integrated PHYs enable upstream and downstream network connections without separate 100BASE-TX devices. The 8-bit or 16-bit host interface supports embedded processors that already manage image processing and machine control. HP Auto-MDIX simplifies installation in systems where cable orientation may vary. Layout should separate the Ethernet pairs from sensitive sensor and image-processing circuitry, while the exposed pad requires adequate thermal continuity. Confirm synchronization timing, cable reach, and environmental requirements before production release.
推荐
PLC and Embedded Automation Nodes
The LAN9253T-I/R4X can add EtherCAT slave functionality to compact PLC expansion modules and embedded automation nodes. Its integrated dual-PHY design reduces the board area needed for ordinary Ethernet connections, while 8 FMMUs and 8 SyncManagers provide configurable communication resources for distributed I/O. The 8-bit or 16-bit bus can connect to an embedded controller without requiring a wide host data path. The 1.8 V to 3.3 V variable core supply supports integration with modern embedded logic, while the industrial ordering code suits equipment where its specified operating and qualification conditions apply. Verify power sequencing, Ethernet magnetics or isolation, EMC resilience, and watchdog behavior in the final control system.
推荐
推荐产品汇总
工程参考数据： LAN9253T-I/R4X ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LAN9253-I/R4X | LAN9253T/R4X | LAN9253/R4X |
|---|---|---|---|---|
| Package | 64-pin QFN (9 x 9 mm) | 64-pin QFN (9 x 9 mm) | 64-pin QFN (9 x 9 mm) | 64-pin QFN (9 x 9 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Type | 2/3-port EtherCAT Slave Controller | EtherCAT Slave Controller | 2/3-port EtherCAT Slave Controller | EtherCAT Slave Controller |
| Ethernet Speed | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps |
| Ethernet Physical Layer | 100BASE-TX | 100BASE-TX | 100BASE-TX | 100BASE-TX |
关键差异点
- Integrated dual-PHY EtherCAT connectivity （对比 LAN9253-I/R4X)
- Explicit industrial ordering designation （对比 LAN9253T/R4X)
- Eight communication resources for deterministic fieldbus designs （对比 LAN9253/R4X)
设计说明
Use the manufacturer PCB stack-up and reference layout as the basis for the Ethernet differential pairs, power planes, and exposed-pad via array. Route each 100BASE-TX pair as a controlled-impedance differential pair with continuous reference-plane support, minimize vias and stubs, and observe the specified pair spacing. The integrated PHYs simplify the BOM, but they do not remove the need for careful signal-integrity layout.
The 64-pin QFN includes an exposed thermal pad that must be connected to the recommended ground-plane structure and thermal-via arrangement. Keep thermal vias clear of sensitive routing where required by the manufacturer layout, use adequate copper area, and calculate the estimated junction-temperature rise from actual power dissipation, package thermal resistance, copper area, and ambient temperature. Do not assume that the exposed pad alone guarantees adequate cooling in an enclosed enclosure.
Place the required bypass capacitors at their associated supply pins using the shortest possible ground-return paths, and follow the manufacturer recommendations for each supply rail and the exposed pad. The LAN9253 supports a 1.8 V to 3.3 V variable core voltage, but every external rail must remain within its documented limits during startup, normal operation, and fault conditions. Sequence sensitive rails according to the device's power-up requirements.
Do not substitute a LAN9253 ordering code solely because the package name matches. Verify the T and I suffix meanings, operating-temperature grade, qualification status, exposed-pad implementation, and packing requirements in the manufacturer ordering table. For industrial products, also review isolation strategy, EMC limits, Ethernet cable reach, and any customer-specific EtherCAT conformance requirements before releasing the PCB.
合规信息
The I suffix identifies an industrial ordering variant, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified in the available product information.
