KSZ8051MNL Просмотр технического описания (PDF) - Microchip Technology

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KSZ8051MNL

10BASE-T/100BASE-TX Automotive Physical Layer Transceiver

Microchip Technology 

KSZ8051MNL/RNL

1.0 INTRODUCTION

1.1 General Description

The KSZ8051 is an AEC-Q100 standard qualified single-supply 10BASE-T/100BASE-TX Ethernet physical-layer trans-

ceiver.

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 KSZ8051MNL offers the Media Independent Interface (MII) and the KSZ8051RNL offers the Reduced Media Inde-

pendent Interface (RMII) for direct connection with MII-/RMII-compliant Ethernet MAC processors and switches.

A 25 MHz crystal is used to generate all required clocks, including the 50 MHz RMII reference clock output for the

KSZ8051RNL.

The KSZ8051 provides diagnostic features to facilitate system bring-up and debugging in production testing and in prod-

uct deployment. Parametric NAND tree support enables fault detection between KSZ8051 I/Os and the board. Microchip

LinkMD® TDR-based cable diagnostics identify faulty copper cabling.

The KSZ8051MNL and KSZ8051RNL are available in 32-pin, lead-free QFN packages.

FIGURE 1-1:

SYSTEM BLOCK DIAGRAM

MDC/MDIO

MANAGEMENT

10/100Mbps

MII/RMII MAC

MII/RMII

KSZ8051MNL/

KSZ8051RNL

50MHz

(KSZ8051RNLU)

REF_CLK

XO

XI

25MHz

XTAL

22pF

22pF

MEDIA TYPES:

RJ-45

10BASE-T

CONNECTOR 100BASE-TX

DS00002310A-page 4

 2016 Microchip Technology Inc.

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