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HomeProductsIntegrated Circuits (ICs)Interface - ControllersLAN7431T-I/YXX
Microchip Technology
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See specifications for product details.

LAN7431T-I/YXX - Microchip Technology

Manufacturer Part Number
Microchip Technology
Allelco Part Number
ECAD Model
Parts Description
Detailed Description
72-VFQFN Exposed Pad
Data sheet
RoHs Status
ROHS3 Compliant
In stock: 4787

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LAN7431T-I/YXX Tech Specifications
Microchip Technology - LAN7431T-I/YXX technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - LAN7431T-I/YXX

Product Attribute Attribute Value  
Manufacturer Microchip Technology  
Voltage - Supply 1.8V, 2.5V, 3.3V  
Supplier Device Package 72-VQFN (10x10)  
Standards 10/100/1000 Base-TX PHY  
Series Automotive, AEC-Q100  
Protocol Ethernet  
Package / Case 72-VFQFN Exposed Pad  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Interface GPIO  
Function Controller  
Current - Supply -  
Base Product Number LAN7431  

Parts Introduction

Manufacturer Part Number



Microchip Technology


An interface controller designed for high-performance Ethernet connectivity

Product Features and Performance

Ethernet controller with integrated 10/100/1000 Base-TX PHY

Supports GPIO interface for versatile peripheral control

Automotive grade with wide operating temperature range

Supports multiple voltage supply levels for system flexibility

Comes in a compact 72-VFQFN Exposed Pad package

Product Advantages

High-speed Ethernet communication

Robust design suitable for automotive applications

Low power consumption suitable for various environments

Flexible voltage support catering to different power systems

Key Technical Parameters

Voltage supply options: 1.8V, 2.5V, 3.3V

Operating temperature: -40°C to 85°C

Protocol: Ethernet

Interface: GPIO

Standards compliance: 10/100/1000 Base-TX PHY

Quality and Safety Features

AEC-Q100 qualification for automotive reliability

Automotive grade ensures high reliability and longevity


Compatible with systems requiring Ethernet connectivity and GPIO interface

Application Areas

Automotive networking systems

Industrial controls

Embedded systems requiring network connectivity

Product Lifecycle

Status: Active

Not nearing discontinuation

Availability of replacements or upgrades not specified

Several Key Reasons to Choose This Product

Optimized for automotive and industrial use with robust temperature range

AEC-Q100 qualified indicating high reliability and performance for automotive applications

Integrated PHY for direct Ethernet connectivity reducing system component count

Flexible power supply options catering to different system designs

Supports high-speed networking needs with Gigabit Ethernet capability

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology LAN7431T-I/YXX

Product Attribute LAN7431T-I/YXX LAN7430-I/Y9X LAN7800T-I/Y9X LAN7800-I/VSX
Part Number LAN7431T-I/YXX LAN7430-I/Y9X LAN7800T-I/Y9X LAN7800-I/VSX
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Current - Supply - - 1 ~ 4mA 1 ~ 4mA
Voltage - Supply 1.8V, 2.5V, 3.3V 1.8V, 2.5V, 3.3V 1.2V, 2.5V, 3.3V 1.2V, 2.5V, 3.3V
Series Automotive, AEC-Q100 Automotive, AEC-Q100 - -
Package Tape & Reel (TR) Tray Tape & Reel (TR) Tray
Package / Case 72-VFQFN Exposed Pad 48-VFQFN Exposed Pad 48-VFQFN Exposed Pad 48-VFQFN Exposed Pad
Base Product Number LAN7431 LAN7430 LAN7800 LAN7800
Function Controller Controller Controller Controller
Standards 10/100/1000 Base-TX PHY 10/100/1000 Base-TX PHY 10/100/1000 Base-TX PHY 10/100/1000 Base-TX PHY
Interface GPIO GPIO - -
Supplier Device Package 72-VQFN (10x10) 48-SQFN (7x7) 48-SQFN (7x7) 48-SQFN (6x6)
Protocol Ethernet Ethernet Ethernet Ethernet
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C

LAN7431T-I/YXX Datasheet PDF

Download LAN7431T-I/YXX pdf datasheets and Microchip Technology documentation for LAN7431T-I/YXX - Microchip Technology.

PCN Design/Specification
LAN7430/LAN7431 07/Jan/2022.pdf LAN743x Datasheet 16/Jan/2023.pdf


Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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Microchip Technology


Microchip Technology

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