{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY28405OC-2T","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY28405OC-2T","canonicalUrl":"https://icboms.com/infineon/CY28405OC-2T","factsUrl":"https://icboms.com/api/mcp/products/CY28405OC-2T","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY28405OC-2T, Clock Synthesizer, PLL Yes, Input LVTTL/Crystal, Output Clock, 266 MHz max, 3.135V–3.465V supply, 1:6 input:output ratio, 2 circuits, 0°C–70°C, 48-BSSOP (0.295\", 7.50mm Width), Surface Mount.","salesMarkdown":"## 266 MHz output — what it means for the bus The maximum output frequency is 266 MHz. The differential outputs on the output side allow high-speed clock routing with reduced noise coupling. ## Package and footprint Housed in a 48-lead BSSOP (0.295-inch body width, 7.50 mm), the CY28405OC-2T is a surface-mount part that sits on a standard SSOP-48 footprint. The supplier device package is listed as 48-SSOP, so the land pattern is the same as any other 48-pin SSOP clock or logic IC. No special thermal pad or heatsink is required at this power level. ## Lifecycle and compliance One important catch: it is RoHS non-compliant. For BOMs that must meet EU RoHS or similar green directives, this part will not pass without an exemption. For non-RoHS designs — legacy telecom, military, or exempt industrial equipment — it is a straightforward drop-in. ## Sourcing and availability Because the lifecycle is Active, there is no urgency from an end-of-life standpoint, but the RoHS restriction may limit the number of stocking distributors who carry it — so lead time can vary. Submit an RFQ for a firm delivery window.","metaTitle":"Cypress CY28405OC-2T Clock Synthesizer, PLL, 266 MHz","metaDescription":"Cypress CY28405OC-2T clock synthesizer IC with integrated PLL, 266 MHz max output, 1:6 fanout, 3.3V supply, 48-BSSOP. Active lifecycle, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PLL":"Yes","Type":"Clock Synthesizer","Input":"LVTTL, Crystal","Output":"Clock","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"48-BSSOP (0.295\\\", 7.50mm Width)","Frequency - Max":"266MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Divider/Multiplier":"Yes/No","Number of Circuits":"2","Ratio - Input:Output":"1:6","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"48-SSOP","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.08","stockQuantity":0,"priceTiers":[{"qty":60,"price":"$5.08000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e58691513e812722814da54a45b16a62.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY28405OC-2T RoHS compliant?","answer":"No, it is RoHS non-compliant. The part contains lead and is not suitable for EU RoHS or similar green-procurement BOMs without an exemption."},{"question":"Can CY28405OC-2T be used with a 3.3V supply?","answer":"Yes, the supply voltage range is 3.135V to 3.465V, which covers a standard 3.3V ±5% rail."},{"question":"When sourcing CY28405OC-2T, what is the closest functional alternative?","answer":"The CY2305SXI-1HT is a PLL-based fanout buffer and zero-delay buffer from the same Cypress family, but it is a different part: it has a single circuit, 1:5 fanout, 133.33 MHz max frequency, and operates over -40°C to 85°C. It is not a pin-compatible drop-in for the CY28405OC-2T and should be evaluated separately for your clock-tree requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY28405OC-2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY28405OC-2T 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}}