WMSIC Electronic Components

MICROCHIP LAN9253-I/R4X LAN9253

ModelLAN9253-I/R4X
PackageQFN-64(9x9)
BrandMICROCHIP
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MICROCHIP LAN9253-I / R4X
Type
MICROCHIP
Unit
Electronic Component
Minimum package
260 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
LAN9253-I/R4X
Electronic Component
1
Package
QFN-64(9x9)
Electronic Component
Other Interface
Electronic Component
0.21g
Electronic Component
1
Features
positions
Electronic Component
BM0227276446
Operating Temperature
40℃~+85℃
Operating Voltage
1.14V~1.26V
Interface Type
Bus
Data
100Mbps
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LAN9253-I/R4X 产品概述

一、产品简介

LAN9253-I/R4X 是美国微芯(Microchip)面向工业实时以太网(EtherCAT)从站应用的控制器芯片。器件支持 2/3 端口配置,适合链式或线性拓扑的现场设备(如从站模块、分布式 I/O、驱动器和运动控制器)。器件以高确定性的数据交互和低延迟为设计目标,便于在严格实时要求的工业网络中实现可靠通信。

二、主要规格

  • 接口类型:Bus(主控/外设间总线接口,具体信号与时序请参考厂商资料)
  • 数据速率:100 Mbps(符合工业以太网物理速率)
  • 工作电压:1.14 V ~ 1.26 V(核心电源范围,外围 I/O 可能需要额外电源)
  • 工作温度:-40 ℃ ~ +85 ℃(工业级温度等级)
  • 描述:2/3-PORT ETHERCAT SLAVE(双/三端口 EtherCAT 从站控制器)
  • 品牌:MICROCHIP(美国微芯)
  • 封装:QFN-64(9 mm x 9 mm)

三、典型功能与优势

  • 支持 EtherCAT 协议栈的硬件卸载与帧转发,降低主控 MCU/CPU 负担;
  • 多端口设计便于实现节点级转发与线性网络连接,无需额外交换芯片即可构建多段链路;
  • 工业级温度与低压供电特性适合嵌入式模块化产品;
  • QFN-64 小型封装有利于体积受限的 PCB 布局。

四、设计注意事项

  • 电源:器件核心电压为 1.14–1.26 V,设计时需提供稳定、低噪声的电源,并按数据手册布置合适的旁路电容与滤波网络;外围 I/O 级电源(如 3.3 V/1.8 V)需按规格单独设计;
  • 散热与焊盘:QFN 包含中心散热垫,建议在 PCB 下方做充足的焊盘与过孔以增强散热与接地;
  • 接口匹配:具体总线接口与外部 PHY、主控 MCU 的连接形式(并行/串行/寄存器映射等)请参考微芯提供的参考设计与时序图;差分信号线需按高速以太网布线规范布线并做阻抗控制;
  • EMC 与隔离:工业环境常见强干扰,建议为以太网端口配置磁性元件、适当的共模滤波与隔离措施,必要时使用隔离变压器或光电隔离模块;
  • 软件兼容:配合厂商的 EtherCAT 从站协议栈与示例工程可以加速开发,注意固件与寄存器映射的版本管理。

五、典型应用场景

  • 分布式 I/O 站与现场总线模块;
  • 运动控制器与伺服驱动通信节点;
  • 自动化生产线的数据采集与控制单元;
  • 工业视觉与测量设备的实时网络接口。

六、选型与实施建议

在选型阶段,确认目标系统是否需要 2 端口或 3 端口拓扑,并核对主控侧的总线类型与 I/O 电平。评估系统电源架构以满足核心低压要求,并参考 Microchip 的评估板与参考设计以缩短开发周期。最后,进行环境级 EMC/热测试以验证长期可靠性。

总结:LAN9253-I/R4X 以其工业级规格、2/3 端口灵活性及小尺寸封装,适合对实时性与链式拓扑有要求的 EtherCAT 从站设备。详细的引脚定义、时序与参考设计请参阅 Microchip 官方数据手册与应用说明。

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