KSZ8081RNACA Ethernet IC 10/100 BASE-TX Physical Layer Transceiver With RMII Support

KSZ8081RNACA is a single-supply 10BASE-T/100BASE-TX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable.

KSZ8081RNACA 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.

• 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
• 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 24-pin 4 mm x 4 mm QFN Package

• Game Consoles
• IP Phones
• IP Set-Top Boxes
• IP TVs
• LOM
• Printers