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    1. Home/
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    3. Integrated Circuits - ICs/
    4. Communication & Networking ICs/
    5. KSZ9031RNXIA Microchip

    KSZ9031RNXIA [Microchip]

    KSZ9031RNXIA
    KSZ9031RNXIA

    Part No:

    KSZ9031RNXIA

    Category:

    Communication & Networking ICs

    Manufacturer:

    Microchip

    Description:

    The KSZ9031 is an automotive qualified integrated triple speed (10Base-T/100Base-TX/1000Base-T) Ethernet PHY with LinkMD cable diagnostics.

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Automotive
    Yes
    DownstreamPorts
    1
    Energy Efficient Ethernet
    No
    EtherCAT
    No
    Port Speed
    10/100/1000Mbps
    Fiber Support
    No
    HP Auto MDIX
    Yes
    On-Chip Termination
    Yes
    InterfaceUpStream
    MII/RGMII/GMII
    Internal Regulator
    Yes
    LinkMDCableDiag
    Yes
    MACsec
    No
    Supply Voltages
    3.3
    SyncE
    No
    Temperature Range Max
    105
    Temperature Range Min
    -40
    Digital I/O Voltage
    1.8/2.5/3.3
    WakeonLAN
    Yes
    IEEE 1588 v2
    No

    Products Detail

    The KSZ9031 is a completely integrated triple-speed (10Base-T/100Base-TX/1000Base-T) Ethernet physical-layer transceiver for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable.

    The KSZ9031MNX offers the industry-standard GMII/MII (Gigabit Media Independent Interface/Media Independent Interface) for connection to GMII/MII MACs in Gigabit Ethernet processors and switches for data transfer at 1000Mbps or 10/100Mbps. The KSZ9031RNX provides the reduced gigabit media independent interface (RGMII).

    The KSZ9031 reduces board cost and simplifies board layout by using on-chip termination resistors for the four differential pairs and by integrating an LDO controller to drive a low-cost MOSFET to supply the 1.2V core. The KSZ9031 offers diagnostic features to facilitate system bring-up and debugging in production testing and in product deployment. Parametric NAND tree support enables fault detection between KSZ9031 I/Os and the board. The LinkMD® TDR-based cable diagnostic identifies faulty copper cabling. Remote and local loopback functions verify analog and digital data paths.

    The standard KSZ9031RNX is available in the 48-pin, lead-free QFN package, and the AEC-Q100 automotive qualified parts, KSZ9031RNXUB-VAO and KSZ9031RNXVB-VAO, are available in the 48-pin lead-free WQFN package. The KSZ9031MNX is available in a 64-pin, lead-free QFN package.


    Microchip's complimentary and confidential MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.



  • Single-chip 10/100/1000Mbps IEEE 802.3 compliant Ethernet transceiver
  • KSZ9031Mxx feature GMII/MII standard interface with 3.3V/2.5V/1.8V tolerant I/Os
  • KSZ9031Rxx feature RGMII timing supports on-chip delay according to RGMII Version 2.0, with programming options for external delay and making adjustments and corrections to TX and RX timing paths
  • GMII/MII/RGMII with 3.3V/2.5V/1.8V tolerant I/Os
  • Auto-negotiation to automatically select the highest linkup speed (10/100/1000Mbps) and duplex (half/full)
  • On-chip termination resistors for the differential pairs
  • On-chip LDO controller to support single 3.3V supply operation – requires only one external FET to generate 1.2V for the core
  • Jumbo frame support up to 16KB
  • 125MHz Reference Clock Output
  • Energy-detect power-down mode for reduced power consumption when the cable is not attached
  • Wake-on-LAN (WOL) support with robust custom-packet detection
  • AEC-Q100 qualified for automotive applications (KSZ9031RNXUB-VAO, KSZ9031RNXVB-VAO)
  • Programmable LED outputs for link, activity, and speed
  • Baseline wander correction
  • LinkMD® TDR-based cable diagnostic to identify faulty copper cabling
  • Parametric NAND tree support to detect faults between chip I/Os and board
  • Loopback modes for diagnostics
  • Automatic MDI/MDI-X crossover to detect and correct pair swap at all speeds of operation
  • Automatic detection and correction of pair swaps, pair skew, and pair polarity
  • MDC/MDIO management interface for PHY register configuration
  • Interrupt pin option
  • Power-down and power-saving modes
  • 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 temp)
  • Available in 48-pin QFN (7mm x 7mm) and 64-pin QFN (8mm x 8mm) packages
  • Product FAQ

    1. Is KSZ9031RNXIA available for RFQ?

    Yes. KSZ9031RNXIA by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for KSZ9031RNXIA?

    Pricing for KSZ9031RNXIA can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of KSZ9031RNXIA?

    KSZ9031RNXIA is a Microchip Communication & Networking ICs with Energy Efficient Ethernet: No and Temperature Range Max: 105. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for KSZ9031RNXIA?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can KSZ9031RNXIA be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to KSZ9031RNXIA?

    Yes. If KSZ9031RNXIA is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Communication & Networking ICs parts or compatible alternatives.

    RFQ

    Part Number:

    KSZ9031RNXIA

    Manufacturer:

    Microchip

    Looking for Pricing? Contact us for volume pricing.

    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

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