{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY28346ZC-2","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY28346ZC-2","canonicalUrl":"https://icboms.com/infineon/CY28346ZC-2","factsUrl":"https://icboms.com/api/mcp/products/CY28346ZC-2","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY28346ZC-2, processor-specific clock generator, PLL Yes, Input Crystal, Output HCSL LVCMOS, Frequency - Max 200MHz, 1:22 fanout, 56-TSSOP II, 0°C to 85°C.","salesMarkdown":"## What this clock chip does on a server board The Cypress CY28346ZC-2 is a processor-specific PLL clock generator built for Intel CPU server platforms. It takes a single crystal input and fans it out across 22 outputs — a mix of HCSL and LVCMOS — at up to 200 MHz. That 1:22 ratio means one crystal feeds the whole clock tree: CPU reference clocks, PCIe, memory buffers, and chipset. No external fanout buffers needed on that side of the board. ## Supply voltage and temperature — the operating window Runs on a 3.135 V to 3.465 V supply. The 0°C to 85°C ambient range covers most server rooms and data-centre environments — not rated for extended industrial or outdoor use. If the board sits in an unconditioned telecom cabinet or a factory floor, this part is not the fit. ## Differential input, single-ended input — what the pins expect The input side is single-ended (crystal), but the outputs are differential HCSL. That differential-to-single-ended ratio is listed as No/Yes — meaning no differential inputs, but all outputs are differential-capable. For a server board that needs low-jitter HCSL clocks to the CPU and chipset, this matches. LVCMOS outputs are also available for slower peripherals, giving the designer one device for both clock domains.","metaTitle":"Cypress CY28346ZC-2 Clock Generator, PLL, 200 MHz, 56-TSSOP","metaDescription":"Cypress CY28346ZC-2 processor-specific clock generator for Intel CPU servers. PLL with crystal input, 1:22 fanout, HCSL/LVCMOS outputs up to 200 MHz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PLL":"Yes","Input":"Crystal","Output":"HCSL, LVCMOS","Package":"Bulk","Main Purpose":"Intel CPU Servers","Mounting Type":"Surface Mount","Package / Case":"56-TFSOP (0.240\\\", 6.10mm Width)","Frequency - Max":"200MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"1:22","Operating Temperature":"0°C ~ 85°C (TA)","Supplier Device Package":"56-TSSOP II","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.86","stockQuantity":0,"priceTiers":[{"qty":52,"price":"$5.86000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/kkpbxpritp/CYPRS05887-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"Does CY28346ZC-2 support HCSL and LVCMOS outputs simultaneously?","answer":"Yes, the output types are listed as HCSL and LVCMOS. The 1:22 fanout allows mixing both logic families across the 22 outputs, so one device can drive differential HCSL clocks to the CPU and single-ended LVCMOS clocks to peripherals."},{"question":"Is CY28346ZC-2 compatible with Intel Xeon platforms?","answer":"The part's main purpose is listed as Intel CPU Servers, which covers Xeon-class platforms. Exact compatibility depends on the specific chipset and clocking requirements of your server generation — verify the output frequency plan and voltage levels against the platform clock specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY28346ZC-2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY28346ZC-2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}