LAN8187I-JT

The LAN8187I-JT is a highly integrated, low-power, single-port 10/100 Ethernet transceiver designed for easy implementation and efficient performance in networking applications. It is part of the Microchip Technology's LAN8187 series, which is known for offering robust solutions for Ethernet connectivity. The device supports various industry standards, including IEEE 802.3/802.3u/802.3ab, ensuring compatibility with a wide range of Ethernet networks.
Key features of the LAN8187I-JT include energy-efficient Ethernet operation, wake-on-LAN support, and cable diagnostics. It incorporates advanced power management features, making it suitable for both desktop and mobile applications where power efficiency is crucial. The transceiver also provides enhanced diagnostic capabilities to detect and identify cabling issues, which aids in maintaining network reliability.
The LAN8187I-JT is typically housed in a compact, lead-free, and RoHS-compliant package. Its design facilitates straightforward integration into systems requiring reliable Ethernet connectivity, such as industrial automation, consumer electronics, and embedded systems. The combination of performance, low power consumption, and diagnostics makes it a versatile choice for various networking needs.

The LAN8187I-JT is an Ethernet PHY transceiver. Equivalent products include the Microchip LAN8720A, Texas Instruments DP83848, and the Realtek RTL8201 series. These components are typically used in similar applications and offer comparable functionality and features, such as low power consumption and support for 10/100 Mbps Ethernet. Always verify pin compatibility and electrical specifications before substituting components in your design.

The LAN8187I-JT is an Ethernet transceiver that provides a variety of features suitable for embedded applications. It supports 10/100 Mbps Ethernet connectivity, ensuring reliable and efficient data communication. The device is designed to be compliant with IEEE 802.3 and 802.3u standards, ensuring interoperability with other Ethernet systems.
One of its key features is the support for auto-negotiation, allowing it to automatically select the best speed and duplex mode. This feature simplifies network setup and optimizes performance. The transceiver also supports a wide temperature range, making it suitable for industrial applications.
Additionally, the LAN8187I-JT includes PHY management using the standard MII (Media Independent Interface) and RMII (Reduced Media Independent Interface), which simplifies integration with microcontrollers and processors. It offers diagnostic capabilities like link status, speed indication, and duplex indication, which help in troubleshooting and ensuring optimal network performance.
The device is designed for low power consumption, making it ideal for energy-sensitive applications. Its compact package size allows for ease of integration into various hardware designs.

The LAN8187I-JT is an Ethernet transceiver that typically comes in a 32-pin QFN (Quad Flat No-leads) package. Its primary function is to serve as a physical layer transceiver for Ethernet applications, providing the necessary interface between the MAC layer and the physical Ethernet medium. The device supports 10/100 Mbps data rates and provides features such as auto-negotiation, HP Auto-MDIX, and low power consumption.
Each pin on the LAN8187I-JT serves a specific function, including:
- Power supply pins for providing necessary voltage levels.
- Differential pair pins for transmitting and receiving Ethernet signals.
- Control and status pins for managing the device and interfacing with the MAC.
- Crystal or oscillator pins for clock input.

For specific pin functions and configurations, it is advised to refer to the device's datasheet as it provides a detailed pin-out and functional description.

The LAN8187I-JT is manufactured by Microchip Technology Inc. Microchip Technology is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company is known for its comprehensive portfolio of semiconductor products, which are used in a wide range of applications across various industries. Microchip's offerings include microcontrollers, digital signal controllers, microprocessors, wireless and RF products, power management devices, and more. As a major player in the semiconductor industry, Microchip serves a broad spectrum of markets, including automotive, industrial, consumer, aerospace and defense, communications, and computing. The company's focus is on providing innovative solutions that help their customers reduce risks, lower total system costs, and improve time-to-market.

The LAN8187I-JT is an Ethernet transceiver commonly used in various application areas such as industrial automation, networking equipment, consumer electronics, and embedded systems. It facilitates reliable Ethernet connectivity in environments requiring robust communication solutions. Additionally, it is often employed in systems needing precise data transmission and reception, such as point-of-sale systems, IP telephony, and networked security cameras. Its industrial temperature range makes it suitable for automotive and industrial applications where temperature variations are significant. The transceiver’s compact package and energy efficiency are advantageous for portable and compact devices.

The LAN8187I-JT is typically available in a 32-pin, QFN (Quad Flat No-leads) package. This type of package is known for its compact size and is often used in applications requiring space efficiency and enhanced thermal performance.