Ethernet ICs 10/100 BASE-TX Physical Layer Transceiver

KSZ8081MNXCA-TR – Single-Port 10/100 Ethernet Transceiver IC – Microchip Technology

Engineered for robust network connectivity, the KSZ8081MNXCA-TR from Microchip Technology delivers high-performance Ethernet communication in space-constrained designs. This single-port transceiver IC simplifies integration while providing reliable data transfer for industrial and embedded systems. PCX supplies this active-component solution with guaranteed authenticity and same-day shipping options.

Key Features

• Interface Protocol: MII-compliant 10/100 Ethernet
• Duplex Support: Full duplex operation
• Voltage Flexibility: Operates at 1.8V, 2.5V, or 3.3V
• Temperature Range: 0°C to 70°C commercial grade
• Compact Design: 32-QFN (5x5mm) surface-mount package
• Configuration: 1 driver/1 receiver channel

Technical Specifications

This MII protocol transceiver features an integrated physical layer (PHY) supporting 10BASE-T and 100BASE-TX Ethernet standards. The 32-VFQFN exposed pad package ensures efficient thermal management in high-density PCB layouts. With auto-negotiation and auto-MDIX capabilities, it simplifies network deployment while minimizing external component count. Device organization follows IEEE 802.3 standards for seamless interoperability.

Typical Applications

• Industrial automation controllers
• Embedded networking modules
• IoT gateway devices
• Medical monitoring equipment
• Consumer networking hardware

About Microchip Technology

Microchip Technology stands as a global leader in microcontroller, mixed-signal, and connectivity solutions, serving over 125,000 customers across industrial, automotive, and consumer markets. With 40+ years of innovation, their semiconductor products set industry benchmarks for reliability and power efficiency.

The company maintains rigorous quality certifications including IATF 16949 and ISO 9001, ensuring consistent performance in mission-critical applications. Microchip’s extensive IP portfolio and vertical integration enable optimized solutions for complex connectivity challenges.

About Ethernet Transceiver ICs

Ethernet transceivers serve as the physical interface between network controllers and copper cabling, handling signal conversion, noise filtering, and link management. These ICs are fundamental in creating wired network connectivity for electronic systems where wireless solutions are impractical or insecure.

Modern transceivers like the KSZ series minimize power consumption while supporting advanced features like energy-efficient Ethernet (EEE). Their integration reduces design complexity and BOM costs in networking equipment, industrial PCs, and smart infrastructure deployments.

Packaging Options

Available in industry-standard handling formats:

– Tape & Reel (TR) for automated assembly

– Cut Tape (CT) for prototyping needs

– Digi-Reel® for flexible reel quantities

Frequently Asked Questions

Q: Does this IC require external magnetics?
A: Yes, standard IEEE 802.3-compliant magnetics are required for proper operation.

Q: What cable distance does it support?
A: It supports 100m over CAT5e cable at 100BASE-TX speeds when paired with proper magnetics.

Q: Is the KSZ8081MNXCA-TR compatible with 3.3V microcontrollers?
A: Yes, it natively supports 3.3V interfaces along with 1.8V and 2.5V through integrated regulators.

Q: Does PCX provide design support for this component?
A: Yes, our engineering team offers schematic review assistance and datasheet interpretation.

Q: How does this differ from the KSZ8081RNACA?
A: The MNXCA variant features a lead-free 32-QFN package, while RNACA uses a 48-QFN. Verify pin compatibility before substitution.

Q: Can I request samples before volume ordering?
A: PCX offers sample requests for qualified design projects – contact our support team for details.

Note: Product images may represent the product line and not the exact configuration. Refer to PCX datasheet repository for technical documentation.

Ready to Integrate Reliable Ethernet Connectivity?

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