General Description
The KSZ8051 is a single supply 10Base-T/100Base-TX Ethernet physical layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable.

Features
• Single-chip 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet Transceiver
• MII Interface support (KSZ8051MNL)
• RMII v1.2 Interface support with 50MHz reference clock output to MAC, and option to input 50MHz reference clock (KSZ8051RNL)
• Back-to-Back mode support for 100Mbps copper repeater or media converter
• MDC/MDIO Management Interface for PHY register configuration
• Programmable interrupt output
• LED outputs for link, activity and speed status indication
• On-chip termination resistors for the differential pairs
• Baseline Wander Correction
• HP Auto MDI/MDI-X for reliable detection and correction for straight-through and crossover cables with disable and enable option
• Auto-negotiation to automatically select the highest link up speed (10/100 Mbps) and duplex (half/full)
• Power down and power saving modes
• LinkMD® TDR-based cable diagnostics for identification of faulty copper cabling
• Parametric NAND Tree support for fault detection between chip I/Os and board.
• Loopback modes for diagnostics
• Single 3.3V power supply with VDD I/O options for 1.8V, 2.5V, or 3.3V
• Built-in 1.2V regulator for core
• Available in 32-pin (5mm x 5mm) QFN package

Applications
• Game Console
• IP Phone
• IP Set-top Box
• IP TV
• LOM
• Printer