The LAN8740A/LAN8740Ai is a low-power 10BASE-T/100BASE-TX Physical Layer (PHY) variable I/O voltage transceiver that complies with IEEE 802.3, 802.3u and 802.3az (Energy Efficient Ethernet) standards. Support for Energy Efficient Ethernet (EEE) results in significant power savings with low connection utilisation. Main features - Single-chip Ethernet Physical Layer Transceiver (PHY) - Conforms to energy-efficient Ethernet 802.3az - Support for cable diagnostics - Wake on LAN (WoL) support - Extensive flexPWR technology - Flexible power management architecture - LVCMOS variable I/O voltage range: +1.8 V to +3.3 V - Integrated 1.2-V controller with deactivation function - HP Auto-MDIX support - Small, RoHS-compliant 32-pin VQFN Housing (5 x 5 x 0.9 mm height) - Deterministic 100-Mb internal loopback latency (MII mode)