KSZ8051MNL-EVAL Microchip

KSZ8051MNL/RNL 10Base-T/100Base-TX Physical Layer Transceiver General Description Features The KSZ8051 is a single supply 10Base-T/100Base-TX Single-chip 10Base-T/100Base-TX IEEE 802.3 Ethernet physical layer transceiver for transmission and compliant Ethernet Transceiver reception of data over standard CAT-5 unshielded twisted MII Interface support (KSZ8051MNL) pair (UTP) cable. RMII v1.2 Interface support with 50MHz reference clock The KSZ8051 is a highly integrated, compact solution. It output to MAC, and option to input 50MHz reference reduces board cost and simplifies board layout by using clock (KSZ8051RNL) on-chip termination resistors for the differential pairs and Back-to-Back mode support for 100Mbps copper by integrating a low noise regulator to supply the 1.2V repeater or media converter core. MDC/MDIO Management Interface for PHY register The KSZ8051MNL offers the Media Independent Interface configuration (MII) and the KSZ8051RNL offers the Reduced Media Programmable interrupt output Independent Interface (RMII) for direct connection with MII/ LED outputs for link, activity and speed status indication RMII compliant Ethernet MAC processors and switches. On-chip termination resistors for the differential pairs A 25MHz crystal is used to generate all required clocks, including the 50MHz RMII reference clock output for the Baseline Wander Correction KSZ8051RNL. HP Auto MDI/MDI-X for reliable detection and The KSZ8051 provides diagnostic features to facilitate correction for straight-through and crossover cables system bring-up and debugging in production testing and with disable and enable option in product deployment. Parametric NAND tree support Auto-negotiation to automatically select the highest link enables fault detection between KSZ8051 I/Os and board. up speed (10/100 Mbps) and duplex (half/full) Micrel LinkMD TDR-based cable diagnostics permit Power down and power saving modes identification of faulty copper cabling. LinkMD TDR-based cable diagnostics for identification The KSZ8051MNL and KSZ8051RNL are available in 32- of faulty copper cabling pin, lead-free QFN packages (See Ordering Information). Parametric NAND Tree support for fault detection Data sheets and support documentation can be found on between chip I/Os and board. Micrels web site at: www.micrel.com. Functional Diagram LinkMD is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. KSZ8051MNL/RNL More Features Applications Game Console Loopback modes for diagnostics IP Phone Single 3.3V power supply with VDD I/O options for IP Set-top Box 1.8V, 2.5V, or 3.3V IP TV Built-in 1.2V regulator for core LOM Available in 32-pin (5mm x 5mm) QFN package Printer Ordering Information Part Number Temp. Range Package Lead Finish Description KSZ8051MNL 0C to 70C 32-Pin QFN Pb-Free MII, Commercial Temperature (1) KSZ8051MNLI -40C to 85C 32-Pin QFN Pb-Free MII, Industrial Temperature KSZ8051RNL 0C to 70C 32-Pin QFN Pb-Free RMII, Commercial Temperature (1) KSZ8051RNLI -40C to 85C 32-Pin QFN Pb-Free RMII, Industrial Temperature Note: 1. Contact factory for lead time. July 2010 2 M9999-070910-1.0