Microchip KSZ8721BL-TR
Microchip KSZ8721BL-TR

Microchip KSZ8721BL-TR

Manufacturer No:

KSZ8721BL-TR

Manufacturer:

Microchip

Package:

48-LQFP

Description:

The KSZ8721 is a 10BaseT/100BaseTX/FX Physical Layer Transceiver, which provides an MII and RMII host interface to transmit and receive data.

User Guide

Aichiplink operates certified in-house inspection and testing facilities to ensure all electronic components meet internationally recognized quality and compliance standards. Our quality management system is verified through ISO 9001 certification and industry-standard inspection procedures.

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.

RFQ (REQUEST FOR QUOTATIONS)

Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

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.

Step1:Prepare product

Step1:Prepare product

Step2:Desiccant Protection

Step2:Desiccant Protection

Step3:Vacuum Packaging

Step3:Vacuum Packaging

Step4:Individual Package

Step4:Individual Package

Step5:Anti-collision Filling

Step5:Anti-collision Filling

Step6:Packaging Box

Step6:Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

KSZ8721BL-TR Information

Microchip KSZ8721BL-TR technical specifications, attributes, parameters and parts with similar specifications to Microchip KSZ8721BL-TR.

  • Type
  • Parameter
  • Automotive
  • No
  • DownstreamPorts
  • 1
  • Energy Efficient Ethernet
  • No
  • EtherCAT
  • No
  • Port Speed
  • 10/100Mbps / FX
  • Fiber Support
  • Yes
  • HP Auto MDIX
  • Yes
  • On-Chip Termination
  • No
  • InterfaceUpStream
  • MII/RMII
  • Internal Regulator
  • No
  • Type
  • Parameter
  • LinkMDCableDiag
  • Yes
  • MACsec
  • No
  • Supply Voltages
  • 3.3
  • SyncE
  • No
  • Temperature Range Max
  • 85
  • Temperature Range Min
  • -40
  • Digital I/O Voltage
  • 2.5/3.3
  • WakeonLAN
  • No
  • IEEE 1588 v2
  • No

Operating at 2.5 volts to meet low voltage and low power requirements, the KSZ8721 is a 10BaseT/100BaseTX/FX Physical Layer Transceiver, which provides an MII and RMII host interface to transmit and receive data.

It contains the 10BaseT Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sub-layer (PCS) functions. Moreover, the KSZ8721 has on-chip 10BaseT output filtering, which eliminates the need for external filters and allows a single set of line magnetics to be used to meet requirements for both 100BaseTX and 10BaseT.

The KSZ8721 can automatically configure itself for 100 or 10 Mbps and full or half duplex operation, using on-chip Auto-Negotiation algorithm. It is an ideal choice of physical layer transceiver for 100BaseTX/10BaseT an 100BaseFX applications.


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 100BaseTX/100BaseFX/10BaseT physical layer solution
  • 2.5V CMOS design, power consumption <200mW (excluding output driver current)
  • Fully compliant to IEEE 802.3u standard
  • Supports Media Independent Interface (MII) and Reduced MII (RMII)
  • Supports 10BaseT, 100BaseTX and 100BaseFX with Far-End Fault Detection
  • Supports power down mode and power saving mode
  • Configurable through MII serial management ports or via external control pins
  • Supports auto-negotiation and manual selection for 10/100Mbps speed and full/half-duplex mode
  • On-chip built-in analog front end filtering for both 100BaseTX and 10BaseT
  • LED outputs for link, activity, full/half duplex, collision, and speed
  • Supports back to back, FX to TX for media converter applications
  • Supports MDI/MDI-X auto crossover
  • 2.5V/3.3V tolerance on I/O
  • Commercial temperature range: 0°C to +70°C
  • Industrial temperature range: –40°C to +85°C
  • Available in 48-pin LQFP, SSOP and TQFP packages
  • In Stock :Available

    Looking for price or availability? Send us an RFQ and our sales team will respond quickly.

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    Shipping & Availability

    DHL
    EMS
    FedEx
    UPS

    Fast worldwide shipping via DHL, FedEx, UPS, and EMS.

    Shipped from:HK Warehouse
    Expected Shipping:Thu, Apr 2 - Fri, Apr 3, 2026
    Date Code:Within 2 Years

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    Authenticity Guarantee

    All components supplied by Aichiplink are sourced from trusted global suppliers and verified through strict in-house inspection and quality control procedures.

    Quality Assurance

    Certified in-house inspection and testing facilities ensure all components meet internationally recognized quality standards.