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LAN8742A

10/100 Base-T/TX Ethernet Transceiver with Cable Diagnostics

Status: In Production

Features:

  • Single-Chip Ethernet PHY
  • Flexible power management architecture
  • LVCMOS variable I/O voltage range +1.6V to +3.6V
  • Integrated 1.2V regulator with disable feature
  • Cable diagnostics
  • Deterministic latency
  • Uses a low-cost 25MHz crystal for RMII mode to drive 50MHz output
  • Wake-On-LAN
  • HP Auto-MDIX support
  • Supports commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges
  • 24-pin, 4x4mm SQFN, RoHS-compliant package
  • Set-top Boxes
  • DVRs/PVRs
  • Digital TVs/iPTVs
  • Printers
  • IP and Video Phones
  • Industrial
  • Embedded/Telecom
  • Test/Measurement Instrumentation
  • Wireless Access Points
  • Power over Ethernet (PoE)
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

Microchip's LAN8742A/LAN8742Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Wake-On-LAN functionality, which provides additional system sleep modes for improved power savings. The LAN8742A/LAN8742Ai feature deterministic loop back delay, assuring real-time system performance as well as cable diagnostics which reduce network installation costs. These devices are available in both commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges. The LAN8742A/LAN8742Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and is compliant with IEEE 802.3 and 802.3u standards. Microchip also offers its complimentary and confidential LANCheck® online design review services free of charge to customers who select our products for their application design-in.*

†HP Auto-MDIX eliminates the need for special "crossover" cables when connecting LAN devices together.

 

*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.
 

Additional Features

    Highlights

    • Single-Chip Ethernet PHY
    • Comprehensive flexPWR® technology
      • Flexible power management architecture
      • LVCMOS variable I/O voltage range +1.6V to +3.6V
      • Integrated 1.2V regulator with disable feature
    • Cable diagnostics
    • Deterministic latency
    • Uses a low-cost 25MHz crystal for RMII mode to drive 50MHz output
    • Wake-On-LAN
    • HP Auto-MDIX support
    • Supports commercial (0° to 70°C) and industrial (-40° to 85°C) temperature ranges
    • 24-pin, 4x4mm SQFN, RoHS-compliant package

    Target Applications

    • Set-top Boxes
    • DVRs/PVRs
    • Digital TVs/iPTVs
    • Printers
    • IP and Video Phones
    • Industrial
    • Embedded/Telecom
    • Test/Measurement Instrumentation
    • Wireless Access Points
    • Power over Ethernet (PoE)
Parametrics
Name
Value
Description
Small-Footprint, 10/100 PHY Family Featuring Wake-On-LAN
Ethernet Bandwidth
10/100Mbps
LEDs
2
# of Ethernet Ports
1
Interface
RMII
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
85
HP-Auto MDIX
Yes
Wake-on-LAN
Yes
Interface1
RMII
Copper Support
Yes
Supply Voltage (V)
3.3
Internal Regular
Yes
MAC I/O Voltage
1.8/3.3
Cable Diagnostics
Yes
802.3az
Yes

Documents

Jump to:

Board Design Files

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
LAN8742 High-Speed 10/100 Ethernet Transceiver Customer Eval Board (Wake-on-LAN)
LAN8742 High-Speed 10/100 Ethernet Transceiver Customer Eval Board (Wake-on-LAN) ( EVB8742 )
(Not Recommended for new design)

The EVB8742 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8742 Ethernet PHY via a standard 40-pin MII connector adapted for usin RMII configurations and supports Wake-on-LAN and Cable Diagnostics. The LAN8740 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.

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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
LAN8742A-CZ
0.044100
0.755102
24
QFN
4x4x0.9mm
Matte Tin
e3
LAN8742A-CZ-TR
0.044100
0.212121
24
QFN
4x4x0.9mm
Matte Tin
e3
LAN8742AI-CZ
0.044100
0.755102
24
QFN
4x4x0.9mm
Matte Tin
e3
LAN8742AI-CZ-TR
0.044100
0.212121
24
QFN
4x4x0.9mm
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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