PMC's versatile selection of low pin count, low power Ethernet MAC Framers and Ethernet over SONET Mappers connect directly to optics through an internal SERDES and provide on chip data recovery and clock synthesis. These devices are optimized for a range of Fast Ethernet, Gigabit Ethernet and high-density Packet over Sonet (POS) applications edge and core routers, multiprotocol switches, and SONET/SDH MSPPs and ADMs.