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KS8721BLA4

KS8721BLA4

Product Overview

Category

KS8721BLA4 belongs to the category of Ethernet Physical Layer Transceivers.

Use

This product is primarily used for establishing a physical connection between an Ethernet controller and an Ethernet cable. It enables the transmission and reception of data over an Ethernet network.

Characteristics

  • High-speed Ethernet transceiver
  • Supports various Ethernet standards (10BASE-T, 100BASE-TX, and 1000BASE-T)
  • Low power consumption
  • Compact size
  • RoHS compliant

Package

The KS8721BLA4 comes in a small form-factor package, suitable for surface mount technology (SMT) applications.

Essence

The essence of KS8721BLA4 lies in its ability to provide reliable and efficient Ethernet connectivity for various devices and systems.

Packaging/Quantity

This product is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

  • Operating Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: 10/100/1000 Mbps
  • Interface: MII (Media Independent Interface)
  • LED Indicators: Link, Activity, Speed

Detailed Pin Configuration

The KS8721BLA4 has the following pin configuration:

  1. VDD33
  2. TXEN
  3. TXD0
  4. TXD1
  5. TX_CLK
  6. GND
  7. RX_CLK
  8. RXD0
  9. RXD1
  10. RX_ER
  11. CRS_DV
  12. MDIO
  13. MDC
  14. RX_ER
  15. REF_CLK
  16. VDD33

Functional Features

  • Auto-negotiation for speed and duplex mode
  • Auto-MDI/MDIX crossover support
  • Energy Efficient Ethernet (EEE) support
  • Link status detection and reporting
  • Loopback mode for diagnostics
  • Power-down mode for power saving

Advantages and Disadvantages

Advantages

  • Wide compatibility with various Ethernet standards
  • Low power consumption
  • Compact size for space-constrained applications
  • Supports energy-efficient operation

Disadvantages

  • Limited to MII interface, not compatible with other interfaces
  • Does not support higher data rates beyond 1000 Mbps

Working Principles

The KS8721BLA4 operates by receiving and transmitting electrical signals through the MII interface. It utilizes advanced signal processing techniques to ensure reliable data transmission over Ethernet networks.

Detailed Application Field Plans

The KS8721BLA4 is commonly used in the following application fields:

  1. Networking equipment (routers, switches, hubs)
  2. Industrial automation systems
  3. Embedded systems
  4. Internet of Things (IoT) devices
  5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to KS8721BLA4 are:

  1. KSZ8081RNB
  2. DP83848CVV
  3. LAN8720A

These models offer similar functionality and compatibility with Ethernet standards.

In conclusion, the KS8721BLA4 is a high-speed Ethernet transceiver that provides reliable connectivity for various devices and systems. With its compact size and low power consumption, it is suitable for a wide range of applications in networking, industrial automation, embedded systems, IoT, and automotive electronics. While it has some limitations, such as interface compatibility and data rate support, there are alternative models available to suit specific requirements.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van KS8721BLA4 in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of KS8721BLA4 in technical solutions:

Q1: What is KS8721BLA4? A1: KS8721BLA4 is a highly integrated Ethernet physical layer transceiver (PHY) chip commonly used in networking applications.

Q2: What are the key features of KS8721BLA4? A2: Some key features of KS8721BLA4 include support for 10/100 Mbps data rates, auto-negotiation, MDI/MDIX crossover, and various power-saving modes.

Q3: What interfaces does KS8721BLA4 support? A3: KS8721BLA4 supports MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) interfaces.

Q4: Can KS8721BLA4 be used in industrial applications? A4: Yes, KS8721BLA4 is suitable for industrial applications due to its wide operating temperature range and robust design.

Q5: Does KS8721BLA4 support Power over Ethernet (PoE)? A5: No, KS8721BLA4 does not support Power over Ethernet. It is primarily a PHY chip for Ethernet connectivity.

Q6: Can KS8721BLA4 be used in automotive applications? A6: Yes, KS8721BLA4 can be used in automotive applications as it meets the necessary requirements for automotive-grade components.

Q7: What is the power supply voltage range for KS8721BLA4? A7: The power supply voltage range for KS8721BLA4 is typically between 3.0V and 3.6V.

Q8: Is KS8721BLA4 compatible with different microcontrollers or processors? A8: Yes, KS8721BLA4 is compatible with a wide range of microcontrollers and processors that support the MII or RMII interface.

Q9: Can KS8721BLA4 be used in both full-duplex and half-duplex modes? A9: Yes, KS8721BLA4 supports both full-duplex and half-duplex communication modes.

Q10: Are there any evaluation boards or reference designs available for KS8721BLA4? A10: Yes, Micrel (now Microchip) provides evaluation boards and reference designs to help developers integrate KS8721BLA4 into their applications more easily.

Please note that these answers are general and may vary depending on the specific implementation and requirements. It's always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.