{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY26121ZXI-21","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY26121ZXI-21","canonicalUrl":"https://icboms.com/infineon/CY26121ZXI-21","factsUrl":"https://icboms.com/api/mcp/products/CY26121ZXI-21","rawCanonicalId":null},"summary":{"shortDescription":"Cypress PacketClock™ CY26121ZXI-21 PLL clock generator, 33.33MHz max frequency, crystal input, 1:5 fanout, 3.135V–3.465V supply, -40°C to 85°C, 16-TSSOP surface mount.","salesMarkdown":"## Package and footprint for layout Housed in a 16-TSSOP package (4.40 mm wide), this part is a surface-mount fit for dense PCB layouts. ## Lifecycle and sourcing reality The CY26121ZXI-21 carries an active lifecycle status with ROHS3 compliance.","metaTitle":"CY26121ZXI-21 Clock Generator, 33.33MHz, 16-TSSOP","metaDescription":"Cypress CY26121ZXI-21 PacketClock™ PLL clock generator, 33.33MHz max, 3.135V–3.465V supply, -40°C to 85°C, 16-TSSOP. Active, ROHS3.","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":"What is the equivalent to CY26121ZXI-21?","answer":"A functional peer is the CY2305SXI-1HT, which is a fanout buffer / zero-delay buffer also in a 1:5 ratio and -40°C to 85°C range, but it operates from a 3.0 V supply and does not include a divider/multiplier. Verify your input voltage and PLL configuration before substituting."},{"question":"Can I use a 25 MHz crystal with CY26121ZXI-21?","answer":"The part accepts a crystal input, and the internal PLL can multiply to reach the 33.33 MHz maximum output. A 25 MHz crystal is within the typical operating range, but confirm the PLL multiplication ratio and output frequency do not exceed the 33.33 MHz limit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY26121ZXI-21","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY26121ZXI-21 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}