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KSZ8721CL
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KSZ8721CL

Product Overview

Category

The KSZ8721CL belongs to the category of Ethernet Physical Layer Transceivers.

Use

It is primarily used for connecting Ethernet devices to a network.

Characteristics

  • Supports 10/100 Mbps data rates
  • Compliant with IEEE 802.3 standards
  • Low power consumption
  • Integrated termination resistors
  • Supports Auto-MDIX (automatic crossover detection)
  • Built-in signal conditioning circuitry

Package

The KSZ8721CL comes in a small form-factor package, typically a 48-pin QFN (Quad Flat No-Lead) package.

Essence

The essence of the KSZ8721CL lies in its ability to provide reliable and high-speed Ethernet connectivity for various applications.

Packaging/Quantity

The product is usually packaged in reels or trays, with quantities varying depending on the manufacturer's specifications.

Specifications

  • Data Rate: 10/100 Mbps
  • Supply Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Interface: MII (Media Independent Interface)
  • ESD Protection: ±8kV HBM (Human Body Model)

Detailed Pin Configuration

The KSZ8721CL has a total of 48 pins, each serving a specific function. The pin configuration is as follows:

  1. VDD33
  2. VDD33
  3. VDD33
  4. VDD33
  5. VDD33
  6. VDD33
  7. VDD33
  8. VDD33
  9. VDD33
  10. VDD33
  11. VDD33
  12. VDD33
  13. VDD33
  14. VDD33
  15. VDD33
  16. VDD33
  17. VDD33
  18. VDD33
  19. VDD33
  20. VDD33
  21. VDD33
  22. VDD33
  23. VDD33
  24. VDD33
  25. VDD33
  26. VDD33
  27. VDD33
  28. VDD33
  29. VDD33
  30. VDD33
  31. VDD33
  32. VDD33
  33. VDD33
  34. VDD33
  35. VDD33
  36. VDD33
  37. VDD33
  38. VDD33
  39. VDD33
  40. VDD33
  41. VDD33
  42. VDD33
  43. VDD33
  44. VDD33
  45. VDD33
  46. VDD33
  47. VDD33
  48. VDD33

Functional Features

  • Auto-negotiation for speed and duplex mode selection
  • LinkMD® TDR-based cable diagnostics
  • Energy Efficient Ethernet (EEE) support
  • Wake-on-LAN (WoL) functionality
  • Loopback modes for self-testing
  • LED indicators for link/activity status

Advantages and Disadvantages

Advantages

  • High-speed data transmission
  • Low power consumption
  • Integrated termination resistors simplify PCB design
  • Supports automatic crossover detection

Disadvantages

  • Limited to 10/100 Mbps data rates
  • Requires external magnetics for isolation

Working Principles

The KSZ8721CL operates by receiving and transmitting Ethernet signals through the MII interface. It uses advanced signal conditioning techniques to ensure reliable data transmission over twisted-pair cables. The transceiver supports auto-negotiation, allowing it to automatically determine the best speed and duplex mode for communication.

Detailed Application Field Plans

The KSZ8721CL is widely used in various applications, including: - Network switches - Routers - Industrial automation systems - IP cameras - Automotive Ethernet

Detailed and Complete Alternative Models

Some alternative models to the KSZ8721CL include: - KSZ8081MNX - KSZ8863RLL - KSZ9031RNX

These models offer similar functionality and can be considered as alternatives depending on specific requirements.

In conclusion, the KSZ8721CL is a versatile Ethernet Physical Layer Transceiver that provides reliable and high-speed connectivity for various applications. Its low power consumption, integrated termination resistors, and support for auto-negotiation make it a popular choice among designers. However, its limited data rate and requirement for external magnetics should be taken into consideration when selecting this transceiver for a particular application.

Énumérez 10 questions et réponses courantes liées à l'application de KSZ8721CL dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of KSZ8721CL in technical solutions:

Q1: What is KSZ8721CL? A1: KSZ8721CL is a highly integrated Ethernet physical layer transceiver (PHY) chip designed for use in various networking applications.

Q2: What are the key features of KSZ8721CL? A2: The key features of KSZ8721CL include support for 10/100 Mbps data rates, auto-negotiation, full-duplex operation, low power consumption, and advanced power management capabilities.

Q3: Can KSZ8721CL be used in industrial applications? A3: Yes, KSZ8721CL is suitable for industrial applications due to its robust design, wide temperature range support, and compatibility with various industrial protocols.

Q4: Does KSZ8721CL support Power over Ethernet (PoE)? A4: No, KSZ8721CL does not support PoE. It is a PHY chip that handles the physical layer functions of Ethernet communication.

Q5: What interfaces does KSZ8721CL support? A5: KSZ8721CL supports MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) interfaces, making it compatible with a wide range of microcontrollers and network processors.

Q6: Is KSZ8721CL compatible with Gigabit Ethernet? A6: No, KSZ8721CL supports up to 100 Mbps data rates and is not compatible with Gigabit Ethernet. For Gigabit Ethernet applications, a different PHY chip should be used.

Q7: Can KSZ8721CL be used in automotive applications? A7: Yes, KSZ8721CL is suitable for automotive applications as it meets the requirements for automotive-grade components, including extended temperature range and ESD protection.

Q8: Does KSZ8721CL support Wake-on-LAN (WoL) functionality? A8: Yes, KSZ8721CL supports Wake-on-LAN functionality, allowing a device to be remotely powered on from a low-power state using network signals.

Q9: What is the power supply voltage range for KSZ8721CL? A9: The power supply voltage range for KSZ8721CL is typically between 3.3V and 3.6V.

Q10: Are there any evaluation boards or reference designs available for KSZ8721CL? A10: Yes, Microchip (formerly Microsemi) provides evaluation boards and reference designs for KSZ8721CL, which can help developers quickly prototype and integrate the chip into their applications.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.