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LAN7431

PCIe RGMII Networking

Status: In Production

Features:

  • Single-chip, PCIe 3.1 @ 2.5GT/s MII / RGMII Network Controller
  • IEEE 1588-2008 Precision Time Protocol
  • Comprehensive Driver Support
  • RGMII v1.3, v2.0 with option for programmable delay
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

Microchip's LAN7431 is a PCIe 3.1 (at 2.5GT/s) to Reduced Gigabit Media Independent Interface (RGMII) Gigabit Networking bridge providing an ultra-high-performance and cost-effective PCIe to Ethernet connectivity solution.  LAN7431 contains an integrated RGMII interface, PCIe PHY, PCIe endpoint controller, 10/100/1000 Gigabit Ethernet MAC, Integrated OTP, JTAG TAP and EEPROM controller.

PCIe-based networking provides flexibility for the routing and placement of network connections anywhere in the system.  Specific enhancements for PCIe LPSS (Low Power Sub-States) L1.1 and LPSS L1.2 have been integrated to lower system power consumption.   LAN7431 is available with a wide range of drivers including Windows®,  Linux®, and Pseudo Code for development towards RTOS. LAN7431 also supports Precision Time Protocol using industry standard 1588-2008 PTP.  GPIOs are provided that can be software defined for this function.  Included within this feature is a programmable timer compare output that can also be software configured.

The LAN7431 integrates all needed voltage regulators and requires only a single 3.3V supply.  Further BOM savings can be realized through the integrated clock tree only requiring one external crystal or clock source.  An EEPROM interface is provided although is not mandatory - an integrated OTP memory can provide for configuration data, further reducing system design cost and burden.

Multiple power management features are provided, including various low-power modes and Link Status Change wake events.  These wake events can be programmed to initiate a PCIe beacon, and if desired, also generate a hardware PME event.
The device is available in commercial (0° to 70°C) and industrial temperature range (-40° to 85°C) and automotive grade 2 (-40° to 105°C)

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, PCIe 3.1 @ 2.5GT/s MII / RGMII Network Controller
    • PCIe Low Power Sub State LPSS L1.1 (snooze) & L1.2 (off)
    • Requires only a single 25MHz crystal or single ended clock
    • 9K jumbo frames are supported
    • Internal OTP memory to remove the need for external EEPROM
  • RGMII / MII
    • RGMII v1.3, v2.0 with option for programmable delay
    • Variable IO power supplies in the range 1v8 to 3v3
  • IEEE 1588-2008 Precision Time Protocol
    • IEEE 1588-2008 E2E and P2P one and two step supported
    • IEEE 1588-2008 Programmable Time Compare output (Eg: 1PPS)
  • Comprehensive Driver Support
    • Windows OneCore with WHQL Certification
    • Linux driver in mainline kernel
    • QNX Support Package
  • Application Examples
Parametrics
Name
Value
Description
PCIe 3.1 to 10/100/1000 Ethernet Bridge
Ethernet Bandwidth
10/100/1000Mbps
MAC
Yes
LEDs
4
Op. Voltage (V)
3.3
# Downstream Ethernet/USB Ports
RGMII x1
Interface
PCIe 3.1 at 2.5GT/s
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
105

Documents

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Supporting Collateral

Board Design Files

12/12/2018
377KB
12/03/2018
19KB
01/14/2019
336KB

User Guides

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
PCIe to Dual Port 10/100/1000 Ethernet Application Example
PCIe to Dual Port 10/100/1000 Ethernet Application Example ( AE-LAN7431-KSZ9893 )

AE-LAN7431-KSZ9893 is an Application Example showcasing PCIe RGMII networking and Ethernet switch functions

Learn More
LAN7431 Ethernet Development System
LAN7431 Ethernet Development System ( EVB-LAN7431-EDS )

EVB-LAN7431-EDS is member of the Microchip EDS family of boards and provides an RGMII or MII interface from a PCIe abstracted host

Learn More
Add To Cart
Software Libraries
LAN743x Windows Command Line Utility

LAN743x Windows Command Line EEPROM Programming Utility

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MPLAB(r) Connect Configurator - Programming and Configuration Utility

Follow this link for the latest revision of the MPLAB(r) Connect Configurator -> Click

...

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QNX Support Package

A QNX 7.x support package exists for this device.

Please contact Microchip technical support for the latest version of this material.

Learn More

Similar Devices

Product
Ethernet Bandwidth
Interface
Price 5K
10/100/1000Mbps
PCIe 3.1 at 2.5GT/s
$3.74
10/100/1000Mbps
PCIe 3.1 at 2.5GT/s
$3.40
10/100/1000Mbps
USB2.0
$3.80
10/100/1000Mbps
USB 3.1 Gen 1
$4.32
10/100/1000Mbps
USB 3.1 Gen 1
$3.95
10/100/1000Mbps
USB 2.0 or HSIC
$3.83
10Base-T/ 100Base-TX
USB2.0 (HSIC), MII
$5.87
10/100Mbps
USB2.0
 
10/100Mbps
USB2.0
$2.55
10/100Mbps
USB2.0
$3.42
10/100Mbps
USB2.0
$3.69
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USB2.0
$4.01
10/100Mbps
USB2.0 (HSIC), MII
$2.98

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LAN7431/YXX
1.190476
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431-I/YXX
1.190476
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431T/YXX
0.504667
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431T-I/YXX
0.504667
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431T-V/YXX
0.504667
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431-V/YXX
1.190476
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431-V/YXXVAO
1.190476
72
VQFN
10x10x0.9mm
Matte Tin
e3
LAN7431T-V/YXXVAO
0.504667
72
VQFN
10x10x0.9mm
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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