KSZ8995FQI

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KSZ8995FQI Application Field and Working Principle

KSZ8995FQI is a specialized IC that is highly integrated and contains features such as a Single Supply Transceiver, PHY-Layer Clock Synthesizer, Filtering, Ethernet MAC, and Inter-Integrated Circuit (I2C) Interface. Manufactured by Microchip Technology, it is an ideal solution for Ethernet switch and device design.

Features and Benefits

KSZ8995FQI is a high-performance, low power multi-layer switch supporting up to 16 ports, with dual management ports, a transceiver and flex-port capabilities allowing multiple Ethernet protocols, as well as full-duplex flow control, IEEE 802.1p-based Class of Service (CoS), and Enhanced QoS capabilities. Moreover, it has integrated many complementary features including an SPI/MIC interface, a full-sized I2C® interface, a dedicated 1-Wire interface, an On-Chip DC-DC Converter, and EEPROM and PCS Status PDI which are all important for application development.

Key Application Fields

As a high-performance multi-layer switch, KSZ8995FQI has numerous application fields, including industrial-grade Ethernet switch solutions, embedded Ethernet device applications, IP camera and other security solutions, PON solutions, and multimedia applications. For a more thorough understanding of the application fields and features KSZ8995FQI can offer, head to Microchip’s Product Page.

General Working Principle

KSZ8995FQI has a Dual-Management Port Interface that connects the IC to a host processor or supporting controller. This DM Port Hardware interface is used to control the various access layer parameters of the IEEE802.3 Network for embedded Ethernet applications that require high traffic management capabilities. Additionally, it does not have the large overhead associated with other solutions based on a standard controller. The DM Port supports 2 independent ports, with each having the capability to configure the traffic classification protocols and the ability to support local or remote management. The specific configuration settings are programmed using the Management Control Registers, which are accessible through the DM Port.

Furthermore, with the integration of the transceiver, it provides the user with the flexibility of using lower cost transceivers without sacrificing overall performance. The transceiver has the ability to support several protocols such as 100BASE-TX, 1000BASE-T, and 10GBASE-T. It also has an integrated PHY-Layer Clock Synthesizer with a servo-loop capable of providing clock rates of up to 1.6GHz. This allows a higher data rate while reducing system complexity and cost.

In addition to the operating principles, KSZ8995FQI is designed for high reliability applications including automotive Ethernet, industrial, consumer and medical with its built in Electrostatic Discharge (ESD) protection and Low VCC Protection. By exceeding the requirements of IEC 60730 and applicable automotive safety standards, the IC is an ideal option for applications that require reliable and secure operation.

Conclusion

KSZ8995FQI is an ideal choice for a variety of embedded Ethernet applications including industrial-grade Ethernet switch solutions, PON solutions, and security applications. This highly integrated IC ensures an optimal performance through its Transceiver, PHY-Layer Clock Synthesizer, EEPROM, Low VCC protection and Electrostatic Discharge (ESD) protection. By having these features, it allows the user the ability to select a suitable IC for their specific application with reducing system complexity and cost.

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