9ZML12x2E Clock Buffers

Renesas Electronics 9ZML12x2E Clock Buffers are second-generation 2-input/12-output differential MUX for Intel Purley and newer platforms. These clock buffers exceed the demanding DB1200ZL performance specifications and are backward compatible with the 9ZML1232B clock buffer. The 9ZML12x2E buffers utilize low-power, High-speed Current Steering Logic (HCSL) compatible outputs to reduce power consumption and termination resistors. Features include nine selectable SMBus addresses, Phase-Locked-Loop (PLL) or bypass mode, spread spectrum compatibility, and SMBus interface. These clock buffers provide two configurable low-drift I²O settings, one for each input channel, allowing I²O tuning for various topologies. Typical applications include servers, storage, networking, and PCI-Express Gen1–4 or QPI/UPI applications.