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KSZ8051MNLU

Micrel Semiconductor
Part Number KSZ8051MNLU
Manufacturer Micrel Semiconductor
Description 10Base-T/100Base-TX Physical Layer Transceiver
Published Jul 22, 2015
Detailed Description KSZ8051MNLU/KSZ8051RNLU 10Base-T/100Base-TX Physical Layer Transceiver Data Sheet Rev. 1.0 General Description The KSZ8...
Datasheet PDF File KSZ8051MNLU PDF File

KSZ8051MNLU
KSZ8051MNLU

Overview
KSZ8051MNLU/KSZ8051RNLU 10Base-T/100Base-TX Physical Layer Transceiver Data Sheet Rev.
1.
0 General Description The KSZ8051 is an AEC-Q100 standard qualified singlesupply 10Base-T/100Base-TX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable 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 offers the Media Independent Interface (MII) and the KSZ8051RNLU 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 KSZ8051RNLU.
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.
Micrel LinkMD® TDR-based cable diagnostics identify faulty copper cabling.
The KSZ8051MNLU and KSZ8051RNLU are available in 32-pin, lead-free QFN packages (see “Ordering Information”).
Data sheets and support documentation are available on Micrel’s web site at: www.
micrel.
com.
Features • Single-chip 10Base-T/100Base-TX IEEE 802.
3 compliant Ethernet transceiver • AEC-Q100 qualified for automotive applications • MII interface support (KSZ8051MNLU) • RMII v1.
2 Interface support with a 50MHz reference clock output to MAC, and an option to input a 50MHz reference clock (KSZ8051RNLU) • 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 different...


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