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KSZ8721BT from MICREL

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KSZ8721BT

Manufacturer: MICREL

2.5V 10/100BasTX/FX MII Physical Layer Transceiver

Partnumber Manufacturer Quantity Availability
KSZ8721BT MICREL 100 In Stock

Description and Introduction

2.5V 10/100BasTX/FX MII Physical Layer Transceiver The KSZ8721BT is a single-port 10/100 Ethernet physical layer transceiver (PHY) manufactured by Micrel (now part of Microchip Technology). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Interface:** MII/RMII  
- **Data Rate:** 10/100 Mbps  
- **Supply Voltage:** 3.3V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 48-pin LQFP  
- **Compliance:** IEEE 802.3/802.3u standards  

### **Descriptions:**
- The KSZ8721BT is a low-power, high-performance Ethernet PHY designed for embedded applications.  
- It supports both Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) for flexible connectivity with MAC controllers.  
- It includes auto-negotiation and auto-MDIX for automatic speed, duplex, and cable polarity detection.  

### **Features:**
- **Energy-Efficient Ethernet (EEE):** Supports IEEE 802.3az for reduced power consumption.  
- **Auto-MDIX:** Eliminates the need for crossover cables.  
- **Loopback Modes:** Diagnostic and testing capabilities.  
- **LinkMD® Cable Diagnostics:** Identifies cable faults.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **Jumbo Frame Support:** Up to 16KB frames.  
- **LED Indicators:** Link, activity, and speed status.  

The KSZ8721BT is commonly used in industrial, automotive, and consumer networking applications.

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