KSZ8001L/S 1.8V, 3.3V 10/100BASE-T/TX/FX Physical Layer Transceiver Fully compliant to IEEE 802.3u standard Features Supports auto-negotiation and manual selection Single chip 100BASE-TX/100BASE-FX/ for 10/100Mbps speed and full / half-duplex mode 10BASE-T physical layer solution Configurable through MII serial management port 1.8V CMOS design, power consumption 250 mW or via external control pins Robust (130m+) operation over standard cables Programmable LED outputs for link, activity, full/ Supports Media Independent Interface (MII), half duplex, collision and speed Reduced MII (RMII), and Serial MII (SMII) On-chip built-in analog front end filtering for both feature to determine cable length and LinkMD 100BASE-TX and 10BASE-T diagnose faulty cables with +/- 2 m accuracy Supports back-to-back, 100BASE-FX to Supports HP MDI/MDI-X auto crossover 100BASE-TX for media converter applications Supports power down mode and power saving Single 3.3V power supply with built-in 1.8V regu- mode lator (L parts) MDC/MDIO to 12.5 MHz for rapid configuration Packages: 48-Pin LQFP, 48-Pin SSOP Functional Diagram 4B/5B ENCODER NRZ/NRZI SCRAMBLER TXD3 MLT3 ENCODER PARALLEL/SERIAL TX+ 10/100 TXD2 TRANSMITTER PULSE TXD1 TX- SHAPER TXD0 PARALLEL/SERIAL TXER MANCHESTER ENCODER TXC TXEN MII/RMII/SMII CRS REGISTERS ADAPTIVE EQ RX+ COL AND BASELINE WANDER 4B/5B DECODER CLOCK CONTROLLER MDIO CORRECTION DESCRAMBLER RECOVERY RX- INTERFACE MLT3 DECODER SERIAL/PARALLEL MDC NRZI/NRZ RXD3 RXD2 RXD1 AUTO NEGOTIATION RXD0 RXER RXDV 10BASE-T MANCHESTER DECODER RXC RECEIVER SERIAL/PARALLEL POWER DOWN/ LINK POWER SAVING COL LED XI DRIVER PLL FDX XO PWRDWN SPD 2009-2019 Microchip Technology Inc. DS00003062A-page 1KSZ8001L/S 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: