Micrel launched the KSZ8895/8875/8864 series. The devices are low-power, highly integrated, 4/5-port Layer-2 switch-on-a-chip ICs. Leveraging Micrel’s latest green physical transceiver and switch technology, the product family achieves a 50 percent reduction in power consumption compared to the previous generation. Meeting the increasing demands for Ethernet connectivity in consumer and industrial applications, the family features advanced power management and sophisticated Quality of Service (QoS) capabilities. Pricing and samples are available upon inquiry with volume production starting in Q1, 2011.
The devices support a single 3.3V power supply with an internal 1.2V LDO, with options for 3.3V, 2.5V or 1.8V IO voltages. Further power savings are supported by advanced power management, including the device’s “Energy Detect Power Down” mode. This mode is activated when the cable is unplugged, and the “slow oscillator” mode is activated when the device is not in use.
The product family provides flexible host processor and PHY interfacing via MII or RMII. Flexibility is also provided in terms of copper or fiber media interfaces. On-chip termination, and internal generation of the 50MHz RMII clock further reduces bill of materials cost and enables a small package size (64-pin QFN for KSZ8864RMN).
More information about 4/5-port Layer-2 switch-on-a-chip ICs can be found at Micrel Website