Datasheet Microchip KSZ8081

KSZ8081MLX
10BASE-T/100BASE-TX
Physical Layer Transceiver
Features Target Applications Single-Chip 10BASE-T/100BASE-TX IEEE 802.3
Compliant Ethernet Transceiver MII Interface Support 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 (10/100 Mbps) and
Duplex (Half/Full) Power-Down and Power-Saving Modes LinkMDВ® 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 VDD I/O Options
for 1.8V, 2.5V, or 3.3V Built-In 1.2V Regulator for Core Available in 48-pin 7 mm x 7 mm LQFP Package пѓЈ 2016 Microchip Technology Inc. Game Consoles
IP Phones
IP Set-Top Boxes
IP TVs
LOM
Printers DS00002264A-page 1 KSZ8081MLX
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com. We welcome your feedback. Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. …

KSZ8081MNX/RNB
10BASE-T/100BASE-TX Physical Layer
Transceiver
Features Applications Single-chip 10Base-T/100Base-TX IEEE 802.3
compliant Ethernet transceiver MII interface support (KSZ8081MNX) RMII v1.2 Interface support with a 50 MHz reference clock output to MAC, and an option to input
a 50 MHz reference clock (KSZ8081RNB) Back-to-back mode support for a 100 Mbps пЂ 
copper repeater MDC/MDIO management interface for PHY пЂ 
register configuration Programmable interrupt output LED outputs for link, activity, and speed 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 пЂ 
highest link-up speed (10/100 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 VDD I/O options
for 1.8V, 2.5V, or 3.3V Built-in 1.2V regulator for core Available in 32-pin (5 mm Г— 5 mm) QFN package пѓЈ 2016-2018 Microchip Technology Inc. Game console
IP phone
IP set-top box
IP TV
LOM
Printer DS00002202C-page 1 KSZ8081MNX/RNB TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip …

KSZ8081RNA/RND
10BASE-T/100BASE-TX PHY with RMII
Support
Features Target Applications Single-Chip 10BASE-T/100BASE-TX 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 (10/100 Mbps) and
Duplex (Half/Full) Power-Down and Power-Saving Modes LinkMDВ® 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 VDD 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 пѓЈ 2016 Microchip Technology Inc. Game Consoles
IP Phones
IP Set-Top Boxes
IP TVs
LOM
Printers DS00002199A-page 1 KSZ8081RNA/RND
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com. We welcome your feedback. Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: …