Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
MICROCHIP KSZ8091RNAIA-TR KSZ8091RNAIA
Configuration
1 options
Configuration
22+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICROCHIP KSZ8091RNAIA-TR
- Type
- MICROCHIP
- Minimum package
- 1000 个
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MICROCHIP
- Electronic Component
- KSZ8091RNAIA-TR
- Electronic Component
- 1
- Package
- QFN-24-EP(4x4)
- Type
- PHYTransceiver
- Electronic Component
- Ethernet Transceiver
- Electronic Component
- 0.153g
- MACInterface
- MII
- Electronic Component
- 1
- Features
- Low Power; Programmable LED
- Electronic Component
- BM0230041062
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3.3V
- Data
- 10Mbit/s；100Mbit/s
- Electronic Component
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
KSZ8091RNAIA-TR 产品概述
一、概述
KSZ8091RNAIA-TR 是 Microchip（美国微芯）提供的一款单通道以太网物理层收发器（PHY），封装为 QFN-24-EP（4×4）。器件工作电压为 3.3V，工作温度范围为 -40℃ 到 +85℃，面向工业级嵌入式网络应用。该器件兼容 10BASE-T 与 100BASE-TX 标准，支持 10/100 Mbps 数据速率，通过标准 MAC 接口（MII）与上层控制器通信，适合用于单端口以太网设计。
二、主要功能与特性
- 支持以太网速率：10BASE-T、100BASE-TX，数据速率可达 10/100 Mbit/s。
- 单通道 PHY，标准 MII 接口，兼容常见微控制器或交换芯片的 MAC 端口。
- 工作电压 3.3V，工业温度等级（-40℃ 至 +85℃），适用于严苛环境。
- QFN-24-EP (4×4) 小封装，有利于空间受限的板级布局与自动贴装。
- 通用 PHY 特性（常见实现）：速度/双工自动协商、链路检测与状态指示、MDIO/MDC 管理接口支持（用于寄存器访问和配置）。
三、典型应用场景
- 家用/商用路由器、网关与以太网模块。
- 工业以太网终端、控制器与现场总线网关。
- 嵌入式设备、智能终端与消费电子产品中的单端口网络接入。
- 小型交换设备或作为从属 PHY 在更大系统中使用。
四、封装与机械注意事项
- 封装：QFN-24-EP（4×4 mm）带外露散热焊盘（EP），推荐在 PCB 上采用与裸露焊盘相连的接地热/散热过孔，以改善热传导与 EMI 性能。
- 焊盘与回流工艺需参照厂商封装图与 PCB 推荐焊盘，确保可靠焊接与应力控制。
五、设计建议
- 电源去耦：VCC 靠近引脚放置 0.1μF 和 1μF 的旁路电容并接地。
- 外部磁性元件：PHY 与 RJ45 之间应使用符合规范的隔离变压器（magnetics）或集成磁性网络。
- 接地与信号完整性：高速对称布线，TX/RX 差分对长度匹配，避免长串扰。
- ESD 与浪涌保护：在 RJ45 侧增加 TVS 或其他瞬态抑制元件以满足现场电气防护要求。
- 管脚热盘：将外露焊盘与地平面通过过孔连接，以利散热与地回流。
六、订购信息与包装
型号：KSZ8091RNAIA-TR（Microchip）
- 后缀 “-TR” 通常表示卷盘包装（Tape & Reel），便于自动贴片生产。
建议在设计与量产前参阅 Microchip 官方数据手册与参考设计以获取完整引脚定义、电气参数、时序与 PCB 布局建议。
如需我帮您提取关键引脚说明、推荐外围电路参考或给出 PCB 布局要点，我可以基于数据手册为您进一步整理。
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