{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY2305ESXC-1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY2305ESXC-1","canonicalUrl":"https://icboms.com/infineon/CY2305ESXC-1","factsUrl":"https://icboms.com/api/mcp/products/CY2305ESXC-1","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY2305ESXC-1, PLL-based Zero Delay Buffer clock driver, 1:9 fanout, 133.33 MHz max, 3.0-3.6 V supply, 8-SOIC, commercial 0°C to 70°C.","salesMarkdown":"## PLL clock buffer with 1:9 fanout — what it does on the board The Cypress CY2305ESXC-1 is a PLL-based zero delay buffer that takes a single clock input and distributes it to nine outputs with near-zero propagation delay between input and output. The internal PLL locks to the incoming clock and regenerates it, cleaning up jitter and providing a low-skew copy to each of the nine outputs. A bypass mode lets the PLL be disabled, passing the input clock straight through — useful for test or low-frequency operation where the PLL's loop filter would otherwise pull the output off frequency. Maximum operating frequency is 133.33 MHz. The 1:9 ratio means one input drives nine loads. ## 133.33 MHz ceiling — where it fits and where it doesn't The 133.33 MHz maximum frequency sets a hard upper bound on the clock rate the buffer can pass cleanly. The differential input/output is marked No/No. ## Package and mounting — 8-SOIC, surface mount Housed in an 8-SOIC package with 0.154\" body width and 3.90 mm width, surface-mount only. The supplier device package is also 8-SOIC. No through-hole variant exists. The package is small enough for dense layouts but large enough for hand-solder rework if needed. ## Lifecycle and compliance — active, no end-of-life pressure The CY2305ESXC-1 is listed as Active with no NRND or last-time-buy notification. ROHS3 compliant. For BOM planning, this means no immediate need to qualify a second source, though the CY2305SXI-1HT offers an industrial-temperature variant (-40°C to 85°C) with a 1:5 fanout in the same Cypress family if your thermal environment demands it.","metaTitle":"Cypress CY2305ESXC-1 Zero Delay Buffer, PLL, 133.33 MHz","metaDescription":"Cypress CY2305ESXC-1 PLL-based zero delay buffer clock driver. 1:9 fanout, 133.33 MHz max, 3.0-3.6 V, 8-SOIC, commercial temp. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes with Bypass","Type":"Zero Delay Buffer","Input":"Clock","Output":"Clock","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Frequency - Max":"133.33MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Divider/Multiplier":"No/No","Number of Circuits":"1","Ratio - Input:Output":"1:9","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"8-SOIC","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.88","stockQuantity":0,"priceTiers":[{"qty":105,"price":"$2.88000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5f5b65a7313071c9721748a9cffac01d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum frequency of CY2305ESXC-1?","answer":"The maximum operating frequency is 133.33 MHz. This is the ceiling for the PLL to maintain lock and clean output. Do not exceed it."},{"question":"How many outputs does CY2305ESXC-1 have?","answer":"The input-to-output ratio is 1:9, meaning one clock input drives nine clock outputs."},{"question":"What are the equivalent parts for CY2305ESXC-1?","answer":"The closest functional peer is the CY2305SXI-1HT, which is a 1:5 fanout variant in the same Cypress family with an industrial temperature range (-40°C to 85°C). The CY2305ESXC-1 has 1:9 fanout and commercial temperature range (0°C to 70°C). Both are PLL-based zero delay buffers, but the fanout count and temperature grade differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY2305ESXC-1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY2305ESXC-1 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}}