Microchip 24-Pin QFN Ethernet Transceiver 3.3 V 100 Mbps KSZ8091RNAIA-TR

Microchip KSZ8091RNAIA-TR Ethernet Transceiver is a 24-Pin QFN package PHY device designed for 10Base-T and 100Base-TX Ethernet physical layer applications. Operating at a fixed supply voltage of 3.3 V, it delivers 100 Mbps maximum data throughput compliant with IEEE 802.3 standards. This transceiver integrates essential functions including on-chip termination resistors for differential pairs and a low-noise 1.2 V regulator to power the internal core circuitry, which simplifies overall board design and reduces component count.

Its flexible digital I/O interface supports voltages of 1.8 V, 2.5 V, or 3.3 V, allowing easy integration with various microcontrollers and Ethernet controllers. It features Wake-on-LAN support that activates the device upon magic packet detection, link status changes, or robust custom packet recognition, aiding energy-efficient network connectivity management.

The KSZ8091PHY offers multiple power management modes including power-down and power-saving states, contributing to reduced power consumption in idle or low network activity scenarios. Packaged in a compact QFN form factor measuring 4 mm in length, 4 mm in width, and 1 mm in height, this transceiver suits space-constrained industrial, commercial, and embedded Ethernet applications.

Typical usage includes networking equipment, industrial automation controllers, embedded devices requiring Ethernet connectivity, and other applications demanding reliable 100 Mbps physical layer solutions over standard CAT-5 unshielded twisted pair cables. The device does not conform to automotive standards but is designed for general electronic component applications in commercial and industrial segments.

Supports 10Base-T/100Base-TX Ethernet transmission over CAT-5 cabling. Highly integrated PHY solution reduces board cost and simplifies PCB layout. Includes on-chip termination resistors for differential pairs. Built-in 1.2 V regulator powers the internal core.

Flexible 1.8/2.5/3.3 V digital I/O interface for broad compatibility. Supports Wake-on-LAN with multiple detection methods. Offers power-down and power-saving operational modes. Compact 4 mm x 4 mm x 1 mm QFN package minimizes board space.

This Microchip Ethernet Transceiver is new and manufactured with quality controls typical for semiconductor devices. It is ideal for industrial, commercial, and embedded Ethernet networking use cases. Explore additional Microchip semiconductor products in the Ethernet Interface Ics category on EnvMart for related components and solutions.