KSZ9031RNXIA: Gigabit Ethernet Transceiver with RGMII Support

KSZ9031RNXIA Description

The KSZ9031RNXIA is a completely integrated triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physicallayer transceiver for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable.

The KSZ9031RNXIA provides the Reduced Gigabit Media Independent Interface (RGMII) for direct connection to RGMII MACs in Gigabit Ethernet processors and switches for data transfer at 10/100/1000 Mbps.

The KSZ9031RNXIA 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 KSZ9031RNXIA 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 KSZ9031RNXIA is available in a 48-pin, lead-free QFN package, and the AEC-Q100 automotive qualified parts, KSZ9031RNXUA/UB and KSZ9031RNXVA/VB, are available in a 48-pin lead-free VQFN (wettable) package.

KSZ9031RNXIA Features

• Single-Chip 10/100/1000 Mbps Ethernet Transceiver Suitable for IEEE 802.3 Applications

• 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

• RGMII with 3.3V/2.5V/1.8V Tolerant I/Os

• Auto-Negotiation to Automatically Select the Highest Link-Up Speed (10/100/1000 Mbps) 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 16 KB

• 125 MHz 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

• 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

KSZ9031RNXIA Applications

• Laser/Network Printer
• Network Attached Storage (NAS)
• Network Server
• Gigabit LAN on Motherboard (GLOM)
• Broadband Gateway
• Gigabit SOHO/SMB Router
• IPTV
• IP Set-Top Box
• Game Console
• Triple-Play (Data, Voice, Video) Media Center
• Industrial Control
• Automotive In-Vehicle Networking

KSZ9031RNXIA Parameters

KSZ9031RNXIA Pinout and Configuration

If you want to know more about the pinout configuration, please click here.

KSZ9031RNXIA CAD Models

Symbol

Footprint

3DModels

KSZ9031RNXIA Equivalent

KSZ9031RNXIA Block Diagram

KSZ9031RNXIA Manufacturer

Microchip Technology Inc. is a publicly-listed American corporation that manufactures microcontroller, mixed-signal, analog and Flash-IP integrated circuits. Its products include microcontrollers (PIC, dsPIC, AVR and SAM), Serial EEPROM devices, Serial SRAM devices, embedded security devices, radio frequency (RF) devices, thermal, power and battery management analog devices, as well as linear, interface and wireless products.

Microchip Technology offers support and resources to educators, researchers and students in an effort to increase awareness and knowledge of embedded applications.

KSZ9031RNXIA Package

48-LEAD QFN 7 MM X 7 MM PACKAGE WITH 3.5 MM X 3.5 MM EXPOSED PAD AREA

KSZ9031RNXIA Datasheet

KSZ9031RNXIA PDF

KSZ9031RNXIA FAQs

How many pins does KSZ9031RNXIA have?

48 pins.

What’s the KSZ9031RNXIA recommended operation temperature?

It’s between -40 and 85℃.

How does KSZ9031RNXIA reduce board cost and simplifies board layout?

The KSZ9031RNX 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.