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KSZ8721CL A2-TR
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KSZ8721CL A2-TR

Product Overview

Category

The KSZ8721CL A2-TR belongs to the category of Ethernet Physical Layer Transceivers.

Use

It is primarily used for establishing a physical connection between an Ethernet controller and an Ethernet cable.

Characteristics

  • Supports 10/100 Mbps data rates
  • Compliant with IEEE 802.3 standards
  • Low power consumption
  • Integrated termination resistors
  • Auto-MDIX (Automatic Medium-Dependent Interface Crossover) support

Package

The KSZ8721CL A2-TR is available in a small form-factor package, making it suitable for space-constrained applications.

Essence

The essence of the KSZ8721CL A2-TR lies in its ability to provide reliable and efficient Ethernet connectivity in various electronic devices.

Packaging/Quantity

This product is typically packaged in reels or trays, with a quantity of around 2500 units per reel.

Specifications

  • Supply Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: 10/100 Mbps
  • Interface Type: MII (Media Independent Interface)
  • Package Type: 48-LQFP

Detailed Pin Configuration

The KSZ8721CL A2-TR features a 48-pin LQFP package with the following pin configuration:

  1. VDDIO
  2. VDDA
  3. VDDCORE
  4. VDDPLL
  5. VSSPLL
  6. VSSCORE
  7. VSSA
  8. VSSIO
  9. XTALI
  10. XTALO
  11. REFCLK
  12. CRS
  13. COL
  14. RXD0
  15. RXD1
  16. RXD2
  17. RXD3
  18. RXDV
  19. RXER
  20. RXCLK
  21. TXEN
  22. TXD0
  23. TXD1
  24. TXD2
  25. TXD3
  26. TXCLK
  27. TXER
  28. MDIO
  29. MDC
  30. INTB
  31. VDDXTAL
  32. VSSXTAL
  33. NC
  34. NC
  35. NC
  36. NC
  37. NC
  38. NC
  39. NC
  40. NC
  41. NC
  42. NC
  43. NC
  44. NC
  45. NC
  46. NC
  47. NC
  48. NC

Functional Features

  • Auto-negotiation: The KSZ8721CL A2-TR supports auto-negotiation, allowing it to automatically determine the best possible connection speed and duplex mode.
  • LinkMD+: This feature provides advanced cable diagnostics, enabling the detection and reporting of cable faults and issues.
  • Energy Efficient Ethernet (EEE): The transceiver supports EEE, which reduces power consumption during periods of low network activity.

Advantages and Disadvantages

Advantages

  • Compact package size
  • Low power consumption
  • Integrated termination resistors simplify PCB design
  • Auto-MDIX support eliminates the need for crossover cables

Disadvantages

  • Limited to 10/100 Mbps data rates
  • Does not support Gigabit Ethernet

Working Principles

The KSZ8721CL A2-TR acts as a bridge between an Ethernet controller and an Ethernet cable. It converts the digital signals from the controller into analog signals suitable for transmission over the cable, and vice versa. The transceiver also handles tasks such as auto-negotiation, error detection, and cable diagnostics.

Detailed Application Field Plans

The KSZ8721CL A2-TR is widely used in various applications, including:

  1. Networking equipment such as switches and routers
  2. Industrial automation systems
  3. Embedded systems
  4. Consumer electronics devices
  5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the KSZ8721CL A2-TR include:

  1. KSZ8081RNBIA - 10/100 Mbps Ethernet PHY Transceiver
  2. DP83848CVV/NOPB - 10/100 Mbps Ethernet Physical Layer Transceiver
  3. LAN8720AI-CP-TR - 10/100 Mbps Ethernet Transceiver with HP Auto-MDIX

These alternative models offer similar functionality and can be considered as substitutes for the KSZ8721CL A2-TR in different applications.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan KSZ8721CL A2-TR dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of KSZ8721CL A2-TR in technical solutions:

Q1: What is the KSZ8721CL A2-TR? A1: The KSZ8721CL A2-TR is a highly integrated Ethernet physical layer transceiver (PHY) that supports 10/100 Mbps data rates.

Q2: What are the key features of the KSZ8721CL A2-TR? A2: Some key features of the KSZ8721CL A2-TR include auto-negotiation, auto-MDIX, energy-efficient Ethernet (EEE), and support for various interfaces like MII, RMII, and SNI.

Q3: What applications can the KSZ8721CL A2-TR be used in? A3: The KSZ8721CL A2-TR can be used in various applications such as industrial automation, home networking, IP cameras, automotive systems, and embedded systems.

Q4: What is auto-negotiation and why is it important? A4: Auto-negotiation is a feature that allows two connected devices to automatically negotiate and establish the best possible link parameters, such as speed and duplex mode. It ensures compatibility and optimal performance between devices.

Q5: What is auto-MDIX and how does it simplify network connections? A5: Auto-MDIX is a feature that automatically detects and adjusts for the type of cable (straight-through or crossover) being used for Ethernet connections. It eliminates the need for manual cable swapping, making network setup easier.

Q6: What is energy-efficient Ethernet (EEE)? A6: Energy-efficient Ethernet (EEE) is a power-saving feature that reduces power consumption during periods of low network activity. It helps conserve energy and is particularly useful in applications where power efficiency is important.

Q7: What interfaces are supported by the KSZ8721CL A2-TR? A7: The KSZ8721CL A2-TR supports multiple interfaces, including MII (Media Independent Interface), RMII (Reduced Media Independent Interface), and SNI (Serial Network Interface).

Q8: Can the KSZ8721CL A2-TR be used in automotive applications? A8: Yes, the KSZ8721CL A2-TR is suitable for automotive applications. It meets the stringent requirements of the automotive industry, such as extended temperature range and electromagnetic compatibility (EMC) standards.

Q9: Is the KSZ8721CL A2-TR compatible with PoE (Power over Ethernet)? A9: No, the KSZ8721CL A2-TR does not support Power over Ethernet (PoE). If PoE functionality is required, an additional PoE controller or PHY would need to be used.

Q10: Are evaluation boards available for the KSZ8721CL A2-TR? A10: Yes, Microchip provides evaluation boards for the KSZ8721CL A2-TR, which can be used for testing and development purposes. These boards help in evaluating the performance and features of the PHY in real-world scenarios.

Please note that these answers are general and may vary depending on specific implementation requirements and product documentation.