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LAN8740A

10/100 Base-T/TX Ethernet Transceiver with Power Saving Features and 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
  • Energy Efficient Ethernet (IEEE 802.3az)
  • 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
  • 32-pin, 5x5mm SQFN, RoHS-compliant packages
  • Set-top Boxes
  • DVRs/PVRs
  • Digital TVs/iPTVs
  • Printers
  • IP and Video Phones
  • Industrial Networks
  • 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 LAN8740A/LAN8740Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Energy Efficient Ethernet (IEEE 802.3az) and Wake-On-LAN functionality, which provide system sleep modes for improved power savings. The LAN8740A/LAN8740Ai 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 LAN8740A/LAN8740Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and are 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
    • Energy Efficient Ethernet (IEEE 802.3az)
    • 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
    • 32-pin, 5x5mm SQFN, RoHS-compliant packages

    Target Applications

    • Set-top Boxes
    • DVRs/PVRs
    • Digital TVs/iPTVs
    • Printers
    • IP and Video Phones
    • Industrial Networks
    • Embedded/Telecom
    • Test/Measurement Instrumentation
    • Wireless Access Points
    • Power over Ethernet (PoE)
Parametrics
Name
Value
Description
Small-Footprint, 10/100 PHY Family Featuring Energy Efficient Ethernet and Wake-On-LAN
Ethernet Bandwidth
10/100Mbps
LEDs
2
# of Ethernet Ports
1
Interface
MII/RMII
EEE
Yes
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
85
HP-Auto MDIX
Yes
Wake-on-LAN
Yes
Interface1
MII/RMII
Copper Support
Yes
Internal Regular
Yes
MAC I/O Voltage
1.8/2.5/3.3
Cable Diagnostics
Yes
802.3az
Yes

Documents

Jump to:

IBIS

Design Checklist

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
LAN8740/LAN8741 High-Speed 10/100 EEE enabled Ethernet Transceiver Customer Eval
LAN8740/LAN8741 High-Speed 10/100 EEE enabled Ethernet Transceiver Customer Eval ( EVB8740 )

The EVB8740 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8740 Ethernet PHY via a standard 40-pin MII connector and supports Energy Efficient Ethernet IEE802.3az along with Wake-on-LAN and Cable Diagnostics. The LAN8740 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.

Learn More
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IoT Ethernet Monitoring Kit powered by Medium One
IoT Ethernet Monitoring Kit powered by Medium One ( DM990101 )

From Sensor to Cloud. The DM990101 IoT Ethernet Monitoring kit powered by Medium One (Software-as-a-Service) offers an all-in-one IoT package. To address Industrial Internet of Things (IoT) projects, the Ethernet technology becomes the most reliable and stable connectivity. This IoT kit uses an Ethernet LAN8740A and comes...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LAN8740A-EN-TR
0.067800
0.185758
32
QFN
5x5x0.9mm
Matte Tin
e3
LAN8740AI-EN-TR
0.067800
0.185758
32
QFN
5x5x0.9mm
Matte Tin
e3
LAN8740AI-EN
0.067800
0.714286
32
QFN
5x5x0.9mm
Matte Tin
e3
LAN8740A-EN
0.067800
0.714286
32
QFN
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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