KSZ8001L/S 1.8V, 3.3V 10/100BASE-T/TX/FX Physical Layer Transceiver Data Sheet Rev. 1.04 General Description Features The KSZ8001 is a 10BASE-T/100BASE-TX/100BASE-FX Single chip 100BASE-TX/100BASE-FX/10BASE-T Physical Layer Transceiver, operating the core at 1.8 volts physical layer solution to meet low voltage and low power requirements. The 1.8V CMOS design, power consumption 250 mW solution provides MII/RMII/SMII interfaces to transmit and Robust (130m+) operation over standard cables receive data. A unique mixed-signal design extends Supports Media Independent Interface (MII), Reduced signaling distance while reducing power consumption. MII (RMII), and Serial MII (SMII) LinkMD feature to determine cable length and HP Auto MDI/MDI-X provides the most robust solution for diagnose faulty cables up 200 m with +/- 2 m accuracy eliminating the need to differentiate between crossover and Supports HP MDI/MDI-X auto crossover straight-through cables. Supports power down mode and power saving mode MDC/MDIO to 12.5 MHz for rapid configuration Featuring LinkMD cable diagnostics, which allows Fully compliant to IEEE 802.3u standard detection of common cabling plant problems such as open Supports auto-negotiation and manual selection for and short circuits, the KSZ8001 represents a new level of 10/100Mbps speed and full / half-duplex mode features and performance and is an ideal choice of physical layer transceiver for 100BASE-TX/10BASE- T/100BASE-FX applications. Functional Diagram Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 Micrel KSZ8001 Features (continued) Configurable through MII serial management port or via external control pins Programmable LED outputs for link, activity, full/half duplex, collision and speed On-chip built-in analog front end filtering for both 100BASE-TX and 10BASE-T Supports back-to-back, 100BASE-FX to 100BASE-TX for media converter applications Single 3.3V power supply with built-in 1.8V regulator (L parts) 48 Pin LQFP, 48 Pin SSOP Ordering Information Part Number Integrated LDO Temperature Range Package Lead Finish KS8001L Yes 0-70C 48-LQFP Standard o o KS8001S No 0 70C 48-SSOP Standard o o KSZ8001L Yes 0 70C 48-LQFP Lead-free o o KSZ8001LI Yes -40 85C 48-LQFP Lead-free o o KSZ8001S No 0 70C 48-SSOP Lead-free o o KSZ8001SI No -40 85C 48-SSOP Lead-free June 2009 Revision 1.04 2