描述 Description

The KSZ8051 is an AEC-Q100 standard qualified single-supply 10Base-T/100Base-TX Ethernet physical-layer transceiver for automotive applications.



The KSZ8051 is a highly-integrated PHY solution. It reduces board cost and simplifies board layout by using on-chip termination resistors for the differential pairs and by integrating a low-noise regulator to supply the 1.2V core.The KSZ8051MNLU/V offers the Media Independent Interface (MII) and the KSZ8051RNLUB-VAO offers the Reduced Media Independent Interface (RMII) for direct connection with MII/RMII-compliant Ethernet MAC processors and switches.A 25MHz crystal is used to generate all required clocks, including the 50MHz RMII reference clock output for the KSZ8051RNLUB-VAO.



The KSZ8051 provides diagnostic features to facilitate system bring-up and debugging in production testing and in product deployment. Parametric NAND tree support enables fault detection between KSZ8051 I/Os and the board. LinkMD TDR-based cable diagnostics identify faulty copper cabling. The KSZ8051MNLU/V and KSZ8051RNLUB-VAO are available in 32-pin, 5x5 lead-free QFN packages



Microchip's complimentary and confidential LANCheck? online design review service is available for customers who have selected our products for their application design-in.?The?LANCheck online design review?service is subject to?Microchip's?Program Terms and Conditions?and requires a myMicrochip?account.

特性 Features

? Single-chip 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet transceiver
? AEC-Q100 qualified for automotive applications
? MII interface support (KSZ8051MNLU/V)
? RMII v1.2 Interface support with a 50MHz reference clock output to MAC, and an option to input a 50MHz reference clock (KSZ8051RNLUB-VAO)
? Back-to-back mode support for a 100Mbps copper repeater
? 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 to reliably detect and correct straight-through and crossover cable connections with disable and enable option
? Auto-negotiation to automatically select the highest link-up speed (10/100Mbps) and duplex (half/full)
? Power-down and power-saving modes
? LinkMD TDR-based cable diagnostics to identify faulty copper cabling
? Parametric NAND Tree support for fault detection between chip I/Os and the 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
? 32-pin (5mm x 5mm) QFN package

簡(jiǎn)介

KSZ8051屬于開(kāi)發(fā)板套件編程器的評(píng)估演示板及套件。由制造生產(chǎn)的KSZ8051評(píng)估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過(guò)驗(yàn)證的實(shí)施環(huán)境中評(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說(shuō)明，并且視乎具體情況由評(píng)估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對(duì)于數(shù)量特別多或類(lèi)別獨(dú)特的器件類(lèi)別(如 ADC、DAC 和開(kāi)關(guān)模式電源)，評(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。