Product Overview

KSZ8081RNACA-TR is a single-port 10/100Mbps Ethernet physical layer transceiver (PHY) from Microchip Technology, featuring a 48-pin QFN package (7×7mm). It supports the IEEE 802.3u standard, integrates 10/100Mbps adaptive transceiver functions, built-in transformer coupling, and low-power design. Suitable for industrial control, smart home, security monitoring, and other embedded systems requiring high-speed and stable network connections.

Key Features

• High-Speed Adaptive Communication：Supports 10BASE-T and 100BASE-TX Ethernet standards with auto-negotiation for operation mode and duplex state, achieving up to 100Mbps transmission rate.
• Simplified Interface Design：Integrates MAC-PHY interfaces (MII/RMII) for seamless connection with various microcontrollers or network processors; built-in transformer coupling reduces external components.
• Low-Power Optimization：Supports IEEE 802.3az Energy Efficient Ethernet (EEE) standard to automatically reduce power during link idle periods; operating current ≤100mA, sleep current ≤10mA.
• Reliable Signal Processing：Built-in digital adaptive equalizer (ADFE) and echo canceller enhance signal quality and anti-interference capability; supports flow control in full-duplex mode.
• Flexible Diagnostic Functions：Provides link status indication, loopback test mode, and remote wake-up function for system debugging and fault diagnosis.

Technical Specifications

Typical Applications

• In industrial automation networks, KSZ8081RNACA-TR serves as the Ethernet interface for field devices, connecting to MCUs via RMII for high-speed data transmission. Its industrial temperature range and low-power ensure long-term stability in harsh environments.
• For smart home gateways, the device enables multi-device networking. Built-in transformer coupling simplifies PCB design, while low-power modes suit 24/7 home devices, with the EEE standard further reducing energy consumption.

Why Choose KSZ8081RNACA-TR？

• High Integration：Built-in transformer coupling and signal processing circuits reduce external components, lowering BOM cost and PCB area.
• Low-Power Design：Supports EEE standard and multiple sleep modes, ideal for battery-powered or power-sensitive applications.
• Industrial-Grade Reliability：-40°C to +85°C operating temperature range and high ESD protection for harsh industrial environments.
• Flexible Interface Support：Simultaneously supports MII and RMII interfaces, compatible with Ethernet controllers of different MCUs/SoCs.
• Simplified Development：Provides complete reference designs and driver support to accelerate time-to-market.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.