Microchip 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR

This low-power 10BASE-T/100BASE-TX physical layer (PHY) transceiver from MICROCHIP features variable I/O voltage and complies with IEEE 802.3 and 802.3u standards. It supports communication with an Ethernet MAC via a standard RMII interface, containing a full-duplex transceiver for 10Mbps and 100Mbps operation.

Auto-negotiation automatically determines the best possible speed and duplex mode, while HP Auto-MDIX support allows the use of direct connect or cross-over LAN cables. Integrated Wake on LAN (WoL) support provides a mechanism to trigger an interrupt upon reception of a perfect DA, broadcast, magic packet, or wakeup frame. The device supports both IEEE 802.3-2005 compliant and vendor-specific register functions.

Key Features

• Flexible power management architecture
• LVCMOS variable I/O voltage range (+1.6V to +3.6V)
• Integrated 1.2V regulator with disable feature
• Cable diagnostics and deterministic latency
• Wake-On-LAN and HP Auto-MDIX support
• Uses a low-cost 25MHz crystal for RMII mode to drive a 50MHz output
• Supports commercial temperature ranges (0°C to 70°C)
• 24-pin SQFN surface mount package
• Reduced Bill of Materials (BOM) using a low-cost crystal