By: Allyanz  05-Apr-2012

Micrel Inc., an industry leader in analog, high bandwidth communications and Ethernet IC solutions, has released the

family of ultra low-power, small package single-port 10/100 Physical Layer Transceivers. These devices provide the MII or RMII interface to transmit and receive data over standard CAT-5 unshielded twisted pair (UTP) cable or fiber. The solution is based on Micrel's enhanced mixed-signal design which enables power consumption to be reduced by half compared to the prior generation. The devices feature high integration (on-chip termination and integrated regulator), reduced system cost and simplified system design. The ICs also feature higher performance and an extended feature set all in very compact package options.

Full compliance to the IEEE 802.3/802.3u standard ensures that the devices will work seamlessly with other standards compliant, already deployed devices. The ultra low power design satisfies the green requirement in today's consumer, industrial and automotive Ethernet applications. On-chip termination not only eliminates components, simplifies PCB design and reduces system BOM, but also improves overall signal integrity and EMI emissions. The single external power supply (3.3V), with integrated regulator, enables core operation at 1.2V with IO at 1.8V/2.5V/3.3V. The

comes in a 48-pin LQFP package and provides a MII MAC interface with the option to interface to copper or fiber media. The

is a copper transceiver housed in a 32-pin QFN with the option for a MII or RMII MAC interface. The

offers the smallest package, 24-pin QFN, with an RMII MAC interface. Auto MDI/MDIX crossover support eliminates the need for a cross-over cable, thus reducing installation costs. Easy to use, the LinkMD


TDR-based cable diagnostics allow for identification of common cabling problems, including those not addressed by IEEE standards. This simplifies network deployment and reduces network downtime.

The low emissions and Micrel's signature high reliability and quality also make these devices suitable for connectivity applications in the fast growing industrial automation and automotive markets.

For more details on these new PHY Layer Transcievers from Micrel, please


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