KSZ8081RNBCA-TR - 10Base-T/100Base-TX Ethernet PHY with RMII interface, QFN32, RoHS, Microchip

Description

The KSZ8081RNBCA-TR is a single-chip 10BASE-T/100BASE-TX Ethernet transceiver compliant with the IEEE 802.3 standard that transmits and receives data over standard CAT-5 unshielded twisted pair (UTP) cable. The device offers an RMII v1.2 interface with a 50 MHz reference clock output to the MAC and a 50 MHz reference clock input option. It includes built-in differential pair termination resistors and Baseline Wander correction. It supports power-saving modes and TDR-based cable diagnostics to identify damaged copper wires. The device is available in a 32-pin QFN (5 mm x 5 mm) package.

Features

• IEEE 802.3 compliant for 10Base-T/100Base-TX
• RMII v1.2 interface support
• Back-to-back mode for 100 Mbps repeaters
• MDC/MDIO management interface
• Programmable interrupt output
• LED indicators for link status, activity, and speed
• Built-in termination resistors
• Base wander correction
• Automatic detection and correction of straight-through and crossover connections (HP Auto MDI/MDI-X)
• Auto-negotiation of link speed (10/100 Mbps) and duplex mode (half/full)
• Power saving modes
• LinkMD TDR cable diagnostics
• NAND Tree support for I/O to board fault detection
• Electrostatic discharge (HBM ESD) immunity up to 6 kV
• Loopback modes for diagnostics
• Power supply: 3.3V with VDD I/O options for 1.8V, 2.5V, or 3.3V
• Built-in 1.2V regulator for core