KSZ8081RNA Transceiver: Pinout, Equivalent and Datasheet

The followings are KSZ8081RNA Symbol, Footprint, and 3D Model.

PCB Symbol

PCB Footprint

3D Model

The KSZ8081RNA is a single-supply 10BASE-T Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ8081RNA is a highly-integrated PHY solution. It reduces board cost and simplifies board layout by using on-chip termination resistors for the differential pairs and by integrating a low-noise regulator to supply the 1.2V core, and by offering 1.8/2.5/3.3V digital I/O interface support. The KSZ8081RNA offers the Reduced Media Independent Interface (RMII) for direct connection to RMII-compliant MACs in Ethernet processors and switches. As the power-up default, the KSZ8081RNA uses a 25 MHz crystal to generate all required clocks, including the 50 MHz RMII reference clock output for the MAC. To facilitate system bring-up and debugging in production testing and in product deployment, parametric NAND tree support enables fault detection between KSZ8081RNA I/Os and the board. LinkMD® TDR-based cable diagnostics identify faulty copper cabling. The KSZ8081RNA is available in 24-pin, lead-free QFN package.

This article provides you with a basic overview of the KSZ8081RNA Transceiver, including its pin descriptions, features and specifications, etc., to help you quickly understand what KSZ8081RNA is.

● Single-Chip 10BASE-T IEEE 802.3 Compliant Ethernet Transceiver

● RMII v1.2 Interface Support with a 50 MHz Reference Clock Output to MAC, and an Option to Input a 50 MHz Reference Clock

● RMII Back-to-Back Mode Support for a 100 Mbps Copper Repeater

● MDC/MDIO Management Interface for PHY Register Configuration

● Programmable Interrupt Output

● LED Outputs for Link and Activity Status Indication

● On-Chip Termination Resistors for the Differential Pairs

● Baseline Wander Correction

● HP Auto MDI/MDI-X to Reliably Detect and Correct Straight-Through and Crossover Cable Connections with Disable and Enable Option

● Auto-Negotiation to Automatically Select the Highest Link-Up Speed (100 Mbps) and Duplex (Half/Full)

● Power-Down and Power-Saving Modes

● LinkMD^® TDR-Based Cable Diagnostics to Identify Faulty Copper Cabling

● Parametric NAND Tree Support for Fault Detection Between Chip I/Os and the Board

● HBM ESD Rating (6 kV)

● Loopback Modes for Diagnostics

● Single 3.3V Power Supply with V_DD I/O Options for 1.8V, 2.5V, or 3.3V

● Built-In 1.2V Regulator for Core

● Available in 24-pin 4 mm x 4 mm QFN Package

Microchip Technology KSZ8081RNACA-TR technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology KSZ8081RNACA-TR.

The following is the Block Diagram of KSZ8081RNA.

System Block Diagram

● Game Consoles

● IP Phones

● IP Set-Top Boxes

● IP TVs

● LOM

● Printers

The following diagram shows the KSZ8081RNA package.

Top View

Bottom View

Side View

The following is the Recommended Land Pattern of KSZ8081RNA.

Recommended Land Pattern

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Download datasheets and manufacturer documentation for Microchip Technology KSZ8081RNACA-TR.