What this clock generator does
The Cypress CY28346ZCT is a processor-specific clock generator IC designed for Intel CPU server platforms. Its core is a PLL that accepts a crystal input and produces up to 19 clock outputs, with a mix of HCSL and LVCMOS signal types. The part is specified for a maximum output frequency of 200 MHz, operating from a 3.135 V to 3.465 V supply rail. The 1:19 input-to-output ratio and differential HCSL outputs (the input is single-ended, outputs are differential) are key indicators this part is built for distributing reference clocks across multiple loads on a server motherboard, such as PCIe interfaces and CPU core logic.
Temperature grade and environment
Rated for the commercial temperature range of 0°C to 70°C, this part is intended for controlled-environment equipment such as data center server racks and enterprise computing hardware. It is not suited for industrial or outdoor deployments where extended temperature operation is required.
Lifecycle and compliance
However, the part is RoHS non-compliant, which is a critical flag for BOMs that must meet RoHS material declarations for European or other regulated markets. Designs requiring lead-free assembly will need an alternative or an exemption review.
Sourcing and procurement reality
As a current-production, active part, the CY28346ZCT is available through independent distribution channels. The RoHS non-compliance means this part is often sourced as legacy stock or for repair markets where the exemption applies; verify your BOM's regulatory requirements before committing the line.