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KSZ8721BLA4

KSZ8721BLA4

Product Overview

  • Category: Integrated Circuit
  • Use: Ethernet Physical Layer Transceiver
  • Characteristics: High-performance, low-power consumption
  • Package: 48-pin LQFP (Quad Flat Package)
  • Essence: Provides a physical interface between Ethernet MAC and Ethernet PHY
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: 10/100 Mbps
  • Interface: MII (Media Independent Interface)
  • LED Indicators: Link, Activity, Speed
  • Power Consumption: Low power mode available
  • EMI: Compliant with FCC Class B and EN55022 Class B standards

Pin Configuration

The KSZ8721BLA4 has a total of 48 pins. The pin configuration is as follows:

  1. VDDIO
  2. VDDA
  3. VDDCORE
  4. VDDPLL
  5. GND
  6. REFCLK
  7. TXEN
  8. TXD[3:0]
  9. TXER
  10. TXCLK
  11. CRS
  12. RXD[3:0]
  13. RXDV
  14. RXER
  15. RXCLK
  16. COL
  17. MDIO
  18. MDC
  19. INTB
  20. RESETB
  21. AVDD
  22. AVSS
  23. NC
  24. NC
  25. NC
  26. NC
  27. NC
  28. NC
  29. NC
  30. NC
  31. NC
  32. NC
  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

  • Supports both 10 Mbps and 100 Mbps Ethernet speeds
  • Auto-negotiation for speed and duplex mode
  • Integrated auto-MDIX (Media Independent Interface crossover)
  • Energy Efficient Ethernet (EEE) support
  • Advanced power management features
  • Built-in loopback modes for diagnostics
  • Supports IEEE 802.3az Energy Efficient Ethernet standard

Advantages and Disadvantages

Advantages: - High-performance data transmission - Low power consumption - Compact package size - Compliance with EEE standards

Disadvantages: - Limited pin configuration options - No built-in surge protection

Working Principles

The KSZ8721BLA4 is an Ethernet Physical Layer Transceiver that provides a physical interface between the Ethernet Media Access Control (MAC) and the Ethernet Physical Layer (PHY). It supports both 10 Mbps and 100 Mbps data rates and utilizes the MII interface for communication.

The transceiver operates by receiving and transmitting data packets over the Ethernet network. It incorporates advanced features such as auto-negotiation, auto-MDIX, and energy-efficient Ethernet support to optimize performance and power consumption.

Detailed Application Field Plans

The KSZ8721BLA4 is commonly used in various networking applications, including:

  1. Ethernet switches
  2. Network routers
  3. Industrial automation systems
  4. Embedded systems
  5. Internet of Things (IoT) devices

Its high-performance capabilities and low-power consumption make it suitable for both consumer and industrial applications.

Alternative Models

Here are some alternative models that offer similar functionality:

  1. KSZ8081RNB
  2. KSZ8863RLL
  3. KSZ9031RNX

These models provide comparable features and can be considered as alternatives to the KSZ8721BLA4.

In conclusion, the KSZ8721BLA4 is a high-performance Ethernet Physical Layer Transceiver that offers reliable data transmission at both 10 Mbps and 100 Mbps speeds. Its compact package size and low power consumption make it suitable for various networking applications. However, it has limited pin configuration options and lacks built-in surge protection.

技術ソリューションにおける KSZ8721BLA4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of KSZ8721BLA4 in technical solutions:

Q1: What is KSZ8721BLA4? A1: KSZ8721BLA4 is a highly integrated Ethernet physical layer transceiver (PHY) chip designed for use in various networking applications.

Q2: What are the key features of KSZ8721BLA4? A2: Some key features of KSZ8721BLA4 include support for 10/100 Mbps data rates, auto-negotiation, MDI/MDIX crossover, power-down modes, and advanced diagnostics.

Q3: What types of applications can KSZ8721BLA4 be used in? A3: KSZ8721BLA4 can be used in a wide range of applications such as industrial automation, automotive systems, home networking, IP cameras, and IoT devices.

Q4: Does KSZ8721BLA4 support Power over Ethernet (PoE)? A4: No, KSZ8721BLA4 does not support Power over Ethernet. It is a PHY chip that handles the physical layer functions of Ethernet communication.

Q5: What interfaces does KSZ8721BLA4 support? A5: KSZ8721BLA4 supports MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) interfaces for connecting to MAC (Media Access Control) controllers.

Q6: Can KSZ8721BLA4 operate in full-duplex mode? A6: Yes, KSZ8721BLA4 supports both half-duplex and full-duplex operation modes, allowing simultaneous transmission and reception of data.

Q7: Is KSZ8721BLA4 compatible with different voltage levels? A7: Yes, KSZ8721BLA4 supports both 3.3V and 2.5V power supply voltages, making it compatible with a wide range of systems.

Q8: Does KSZ8721BLA4 have built-in diagnostics? A8: Yes, KSZ8721BLA4 features advanced diagnostics capabilities, including link status detection, cable length measurement, and loopback testing.

Q9: Can KSZ8721BLA4 be used in harsh environments? A9: Yes, KSZ8721BLA4 is designed to operate reliably in industrial environments and can withstand extended temperature ranges and high levels of electromagnetic interference (EMI).

Q10: Are there any reference designs or evaluation boards available for KSZ8721BLA4? A10: Yes, Microchip (the manufacturer of KSZ8721BLA4) provides reference designs and evaluation boards that can help developers quickly integrate the chip into their applications.

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