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The Microchip KSZ9131 Gigabit Ethernet transceiver is an integrated three-speed (10Base-T/100Base-TX/1000Base-T) physical layer transceiver for transmitting and receiving data over standard CAT-5, CAT-5e, and CAT6 unshielded twisted pair (UTP) cables.

The KSZ9131RNX transceiver features a simplified gigabit media independent interface RGMII.

Device: KSZ9131RNXU-VAO

Type: Gigabit Ethernet transceiver

Package: 48-VFQFN

Features of KSZ9131

Single-chip 10/100/1000Mbps IEEE 802.3 compatible Ethernet transceivers

GMII/MII/RGMII, with an I/O that can withstand 3.3V/2.5V/1.8V voltage

Auto negotiation to automatically select maximum link speed (10/100/1000Mbps) and duplex (half duplex/full duplex)

On-chip terminal resistors for differential pairs

With the on-chip LDO controller, 3.3V single power supply is supported - only one external FET is needed to generate 1.2V for the core

Jumbo frames up to 16KB are supported

125MHz reference clock output

Energy detection power failure mode reduces power consumption when cables are not connected

Support LAN wake up (WOL), with a powerful custom packet detection function

Programmable LED output for links, activity, and speed

Baseline drift correction

Identify faulty copper cables with LinkMD® TDR cable diagnostics

Supports parametric NAND tree to detect faults between chip I/O and board

Loopback mode for diagnosis

With the automatic MDI/MDI-X divider, pair exchanges can be detected and corrected at all operating speeds

MDC/MDIO management interface for configuring the PHY register

Automatically detects and corrects pair exchange, pair skew and pair polarity

Interrupt pin option

Power failure and power saving mode

Operating voltage: Core (DVDDL, AVDDL, AVDDL_PLL) : 1.2V (external FET or regulator) VDD I/O (DVDDH) : 3.3V, 2.5V or 1.8V

Transceiver (AVDDH) : 3.3V or 2.5V (commercial temperature)

Core (DVDDL, AVDDL, AVDDL_PLL) : 1.2V (external FET or regulator)

VDD I/O (DVDDH) : 3.3V, 2.5V or 1.8V

Transceiver (AVDDH) : 3.3V or 2.5V (commercial temperature)

Available in 48-pin QFN (7mm x 7mm) and 64-pin QFN (8mm x 8mm) packages

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.