KSZ8091MLX 10BASE-T/100BASE-TX Physical Layer Transceiver Features Target Applications Single-Chip 10BASE-T/100BASE-TX IEEE 802.3 Game Consoles Compliant Ethernet Transceiver IP Phones MII Interface Support IP Set-Top Boxes Back-to-Back Mode Support for a 100 Mbps Cop- IP TVs per Repeater LOM MDC/MDIO Management Interface for PHY Reg- Printers ister 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 to Reliably Detect and Cor- rect Straight-Through and Crossover Cable Con- nections with Disable and Enable Option Auto-Negotiation to Automatically Select the Highest Link-Up Speed (10/100 Mbps) and Duplex (Half/Full) Energy Efficient Ethernet (EEE) Support with Low-Power Idle (LPI) Mode and Clock Stoppage for 100BASE-TX and Transmit Amplitude Reduc- tion with 10BASE-Te Option Wake-on-LAN (WOL) Support with Either Magic Packet, Link Status Change, or Robust Custom- Packet Detection LinkMD TDR-Based Cable Diagnostics to Iden- tify Faulty Copper Cabling HBM ESD Rating (6 kV) Parametric NAND Tree Support for Fault Detec- tion Between Chip I/Os and the Board Loopback Modes for Diagnostics Power-Down and Power-Saving Modes Single 3.3V Power Supply with V I/O Options DD for 1.8V, 2.5V, or 3.3V Built-In 1.2V Regulator for Core Available in 48-Pin 7 mm x 7 mm LQFP Package 2016 Microchip Technology Inc. DS00002297A-page 1KSZ8091MLX TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: