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KSZ8721BI
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KSZ8721BI

Product Overview

Category

KSZ8721BI belongs to the category of Ethernet Physical Layer Transceiver.

Use

It is primarily used for Ethernet communication applications.

Characteristics

  • Supports 10/100 Mbps data rates
  • Provides a robust and reliable Ethernet connection
  • Low power consumption
  • Compact size

Package

The KSZ8721BI comes in a small form factor package, making it suitable for space-constrained designs.

Essence

The essence of KSZ8721BI lies in its ability to facilitate high-speed Ethernet communication with low power consumption.

Packaging/Quantity

The KSZ8721BI is typically packaged in reels or trays, with quantities varying based on customer requirements.

Specifications

  • Data Rates: 10/100 Mbps
  • Supply Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Interface: MII/RMII
  • Package Type: QFN

Detailed Pin Configuration

The KSZ8721BI has a total of 48 pins. The pin configuration is as follows:

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

Functional Features

  • Auto-negotiation support for link speed and duplex mode detection
  • Integrated 10/100 Mbps Ethernet PHY
  • Supports Energy Efficient Ethernet (EEE) for reduced power consumption
  • Built-in diagnostic features for cable length measurement and fault detection

Advantages and Disadvantages

Advantages

  • High-speed data transmission
  • Low power consumption
  • Compact size
  • Robust and reliable connection

Disadvantages

  • Limited to 10/100 Mbps data rates
  • May require additional components for specific applications

Working Principles

The KSZ8721BI operates by receiving and transmitting Ethernet signals through its integrated PHY. It uses auto-negotiation to establish the link speed and duplex mode with the connected device. The transceiver converts the digital data into analog signals for transmission over the Ethernet cable.

Detailed Application Field Plans

The KSZ8721BI is widely used in various applications, including: - Industrial automation - Home networking - Automotive electronics - Internet of Things (IoT) devices - Embedded systems

Detailed and Complete Alternative Models

Some alternative models to KSZ8721BI include: - KSZ8081MNX - KSZ8863RLL - KSZ9031RNX

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

In conclusion, the KSZ8721BI is a versatile Ethernet Physical Layer Transceiver that provides reliable and high-speed Ethernet communication. With its compact size and low power consumption, it is suitable for various applications in different industries. While it has some limitations in terms of data rates, it offers several advantages such as robustness and energy efficiency.

技術ソリューションにおける KSZ8721BI 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 KSZ8721BI in technical solutions:

Q1: What is KSZ8721BI? A1: KSZ8721BI is a highly integrated Ethernet physical layer transceiver (PHY) that supports 10/100 Mbps data rates.

Q2: What are the key features of KSZ8721BI? A2: The key features of KSZ8721BI include auto-negotiation, MDI/MDIX crossover, energy-efficient Ethernet support, loopback modes, and various diagnostic capabilities.

Q3: Can KSZ8721BI be used in industrial applications? A3: Yes, KSZ8721BI is suitable for industrial applications due to its robust design, wide temperature range (-40°C to +85°C), and support for industrial protocols.

Q4: Does KSZ8721BI support Power over Ethernet (PoE)? A4: No, KSZ8721BI does not support PoE. It is a PHY transceiver and requires an external power source.

Q5: What interfaces does KSZ8721BI support? A5: KSZ8721BI supports MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) interfaces for easy integration with various microcontrollers or MAC controllers.

Q6: Is KSZ8721BI compatible with IEEE 802.3 standards? A6: Yes, KSZ8721BI is fully compliant with IEEE 802.3 standards, including 802.3u (Fast Ethernet) and 802.3ab (Gigabit Ethernet).

Q7: Can KSZ8721BI operate in full-duplex mode? A7: Yes, KSZ8721BI supports both half-duplex and full-duplex modes of operation, allowing for simultaneous transmission and reception of data.

Q8: What is the power supply voltage range for KSZ8721BI? A8: The power supply voltage range for KSZ8721BI is typically 3.3V, but it can operate within a range of 3.0V to 3.6V.

Q9: Does KSZ8721BI have built-in ESD protection? A9: Yes, KSZ8721BI has built-in ESD (Electrostatic Discharge) protection on its I/O pins, providing robustness against ESD events.

Q10: Can KSZ8721BI be used in automotive applications? A10: Yes, KSZ8721BI is suitable for automotive applications as it meets the AEC-Q100 qualification requirements and supports extended temperature ranges.

Please note that these answers are general and may vary depending on specific implementation details or datasheet specifications.