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KSZ8051

10/100Base-T/TX Physical Layer Transceiver

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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.

Additional 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
Parametrics
Name
Value
Description
Automotive 10/100 BASE-TX Physical Layer Transceiver
Ethernet Bandwidth
10/100Mbps
LEDs
2
# of Ethernet Ports
1
Interface
MII/RMII
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
105
HP-Auto MDIX
Yes
Automotive
Yes
Interface1
MII, RMII
Ethercat
Yes
Copper Support
Yes
Supply Voltage (V)
3.3
Internal Regular
Yes
MAC I/O Voltage
1.8/2.5/3.3
Cable Diagnostics
Yes
On-Chip Termination
Yes

Documents

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Supporting Collateral

02/19/2016
2253KB
02/19/2016
1993KB

Software Library

Development Environment

  • Software Libraries
Software Libraries
Driver is located in Linux Kernel

The driver for this device resides in the Linux Kernel found here https://www.kernel.org/

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
KSZ8051MLLI-TR
0.155500
0.768000
48
LQFP
7x7x1.4mm
Matte Tin
e3
KSZ8051MLLI
0.155500
0.694000
48
LQFP
7x7x1.4mm
Matte Tin
e3
KSZ8051RNLI-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNL-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNLU-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNLV
0.064100
0.530612
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNLV-TR
0.061400
0.350000
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051RNLUB-TR-VAO
0.061400
0.350000
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051RNLUB-VAO
0.061400
0.408163
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051RNLU-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNLU-TRVAO
0.061400
0.350000
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051MNLU
0.064100
0.530612
32
VQFN
5x5x0.9mm
NiPdAu
e4
KSZ8051MNLU-VAO
0.061400
0.408163
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051MNLV-VAO
0.061400
0.408163
32
VQFN
5x5x0.9mm
Matte Tin
e3
KSZ8051RNLU-TRVAO
0.061400
0.350000
32
VQFN
5x5x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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