{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY26121ZXI-21T","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY26121ZXI-21T","canonicalUrl":"https://icboms.com/infineon/CY26121ZXI-21T","factsUrl":"https://icboms.com/api/mcp/products/CY26121ZXI-21T","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PacketClock™ Clock Generator IC, PLL Yes, Input Crystal, Output Clock/Crystal, 33.33MHz Max, 3.135V-3.465V, 16-TSSOP, Bulk.","salesMarkdown":"## PLL clock generator with 1:5 fanout The CY26121ZXI-21T is a PLL-based clock generator from Cypress's PacketClock™ series, accepting a crystal input and delivering clock and crystal outputs. It generates a single output frequency up to 33.33 MHz from a 1:5 input-to-output ratio, meaning one reference crystal drives five clock outputs — useful for distributing a clean timing signal across multiple ICs on the same board. The differential input and output are both marked No/No, so this is a single-ended CMOS clock generator — it does not produce LVDS or LVPECL levels. The output type is listed as Clock, Crystal, meaning one of the outputs can drive a crystal load directly. ## 16-TSSOP surface-mount footprint The supplier device package is 16-TSSOP, so the PCB land pattern matches the standard JEDEC MO-153 footprint for this body size. Supplied in bulk (tube) packaging, not tape-and-reel — factor this into your pick-and-place feeder setup if you are running high-volume assembly; bulk tubes require a tube feeder or manual loading.","metaTitle":"CY26121ZXI-21T Clock Generator, 33.33MHz, 16-TSSOP","metaDescription":"Active Cypress PacketClock™ clock generator IC, PLL-based, 1:5 fanout, 33.33 MHz max, 3.3V supply, -40 to 85°C, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"PacketClock™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Clock Generator","Input":"Crystal","Output":"Clock, Crystal","Series":"PacketClock™","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Frequency - Max":"33.33MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"1:5","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-TSSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.48","stockQuantity":0,"priceTiers":[{"qty":204,"price":"$1.48000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5ea56cabb1bb8c150aebfb0433361cee.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for CY26121ZXI-21T?","answer":"Submit an RFQ through the storefront; the sourcing desk will respond with current stock levels and a per-unit price based on your quantity."},{"question":"What is CY26121ZXI-21T's listed PLL status?","answer":"The CY26121ZXI-21T includes an integrated PLL (Phase-Locked Loop) — marked as PLL Yes in the specification. This means it uses a PLL to multiply the input crystal frequency up to the 33.33 MHz maximum output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY26121ZXI-21T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY26121ZXI-21T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}