KSZ8721CL

The KSZ8721CL is a fully integrated single-port 10/100BASE-T/TX/FX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cables. It supports both full-duplex and half-duplex operations, making it suitable for a wide range of Ethernet applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VDD18: 1.8V Power Supply
• VDDD: 3.3V Power Supply
• REFCLK: Reference Clock Input
• LED[0:2]: Link/Activity and Speed LED Outputs
• TXD[3:0]: Transmit Data Outputs
• RXD[3:0]: Receive Data Inputs
• COL: Collision Indicator Output
• MDIO: Management Data I/O
• MDC: Management Data Clock
• RESET: Reset Pin
• DVDD: Digital 3.3V Power

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the KSZ8721CL for a visual representation.

Key Features

• 10/100Mbps Ethernet Transceiver: Supports both fast Ethernet speeds for reliable data transmission.
• Auto-MDIX Support: Provides automatic MDI/MDIX crossover at all speeds, simplifying network infrastructure.
• IEEE 802.3u Compliance: Meets industry-standard IEEE specifications for Ethernet operation.
• IEEE 802.3az Energy Efficient Ethernet (EEE): Provides support for low-power operation in EEE-compliant networks.
• RMII/MII Interfaces: Offers flexibility with Reduced Media Independent Interface (RMII) or Media Independent Interface (MII) options for MAC interfaces.
• Low EMI: Implements low electromagnetic interference design for reliable network communications.

Note: For detailed technical specifications, please refer to the KSZ8721CL datasheet.

Application

• Embedded Systems: Ideal for integrating Ethernet connectivity into embedded systems and microcontroller-based designs.
• Network Switches: Suitable for use in network switches and routers for reliable data transmission over Ethernet networks.
• Industrial Automation: Used in industrial automation and control systems requiring Ethernet connectivity.

Functionality

The KSZ8721CL is designed to provide seamless Ethernet connectivity with support for fast data transmission and energy-efficient operation. It offers reliable performance for a variety of networking applications.

Usage Guide

• Power Supply: Connect VDD18 and VDDD to the respective power supplies (1.8V and 3.3V).
• LED Connections: Use the LED pins to indicate link/activity and speed status on the Ethernet network.
• MDIO Interface: Utilize the MDIO and MDC pins for management data I/O and clock communication.

Frequently Asked Questions

Q: What is the maximum data transmission speed supported by the KSZ8721CL?
A: The KSZ8721CL supports 10/100Mbps Ethernet speeds for fast and reliable data transfer.

Q: Can the KSZ8721CL be used in industrial temperature range applications?
A: Yes, the KSZ8721CL is capable of operating in industrial temperature environments, making it suitable for industrial automation and control systems.