{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY7B991-2JCT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY7B991-2JCT","canonicalUrl":"https://icboms.com/infineon/CY7B991-2JCT","factsUrl":"https://icboms.com/api/mcp/products/CY7B991-2JCT","rawCanonicalId":null},"summary":{"shortDescription":"Cypress RoboClock™ series, CY7B991-2JCT, PLL-based Fanout Buffer (Distribution), Zero Delay Buffer, 1:8 ratio, 80 MHz max, CMOS I/O, 4.5V-5.5V supply, 32-PLCC (J-Lead), 0°C to 70°C.","salesMarkdown":"## PLL clock distribution in a 32-PLCC package The Cypress CY7B991-2JCT is a PLL-based clock buffer from the RoboClock series, combining fanout distribution and zero-delay buffering in a 32-lead PLCC package. It accepts one CMOS input and delivers eight CMOS outputs, with a maximum operating frequency of 80 MHz. The internal PLL aligns output edges to the input, eliminating propagation delay across the clock tree — useful for synchronising multiple loads on a single board. ## 5V supply and commercial temperature range Operating temperature is rated 0°C to 70°C, which covers office equipment, telecom racks, and consumer electronics, but not industrial or automotive environments. The single-circuit design handles one PLL domain; for multiple independent clock domains you would need additional instances. ## Active lifecycle — no obsolescence concern No last-time-buy window is in effect. The part is RoHS non-compliant, so verify your assembly line's solder alloy compatibility if you are migrating to lead-free. ## Rework and footprint notes The 32-lead PLCC package uses J-leads, which are hand-reworkable with a hot-air station — the leads are visible and accessible. The body measures 11.43 x 13.97 mm. This footprint is not compatible with SOIC or QFP patterns, so a dedicated PLCC socket or land pattern is required.","metaTitle":"CY7B991-2JCT RoboClock PLL Clock Buffer, 80 MHz, 32-PLCC","metaDescription":"CY7B991-2JCT PLL-based fanout buffer, 1:8 distribution, 80 MHz max, 5V supply, 32-PLCC. Active production.","metaKeywords":null},"attributes":{"series":"RoboClock™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Fanout Buffer (Distribution), Zero Delay Buffer","Input":"CMOS","Output":"CMOS","Series":"RoboClock™","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"32-LCC (J-Lead)","Frequency - Max":"80MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"1:8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"32-PLCC (11.43x13.97)","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.35","stockQuantity":0,"priceTiers":[{"qty":23,"price":"$13.35000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c25c7042e74eb231695575086f061983.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the direct alternatives or replacements for CY7B991-2JCT?","answer":"The CY2305SXI-1HT is a functional peer — also a PLL-based fanout buffer, but with a 1:5 output ratio, 3.3V supply, and industrial temperature range (-40°C to 85°C). The CY7B991-2JCT offers 1:8 outputs at 5V with commercial temperature; the CY2305SXI-1HT is not a pin-for-pin replacement but covers a similar role in 3.3V systems."},{"question":"Can CY7B991-2JCT be used in 5V applications?","answer":"Yes, the supply range of 4.5V to 5.5V makes it suitable for 5V logic systems. Input and output are CMOS levels referenced to that supply rail."},{"question":"What is the typical lead time for CY7B991-2JCT?","answer":"Lead time is confirmed at quote time against an RFQ. As an active part, it is generally available through distribution channels, but current lead times vary with demand and inventory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY7B991-2JCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY7B991-2JCT 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}}