{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IMIFS781BT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IMIFS781BT","canonicalUrl":"https://icboms.com/infineon/IMIFS781BT","factsUrl":"https://icboms.com/api/mcp/products/IMIFS781BT","rawCanonicalId":null},"summary":{"shortDescription":"IMIFS781BT, Spread Spectrum Clock Generator, PLL Yes, Input CMOS/TTL, Output CMOS/TTL, Frequency Max 82 MHz, Voltage Supply 2.97V–3.63V / 4.5V–5.5V, Operating Temperature 0°C–70°C, Package 8-TSSOP, Surface Mount.","salesMarkdown":"The IMIFS781BT is a spread spectrum clock generator with an integrated PLL, designed to reduce electromagnetic interference (EMI) by modulating the output clock frequency over a controlled range. It accepts CMOS or TTL input and delivers CMOS or TTL output up to 82 MHz, making it a fit for desktop PCs, office peripherals, consumer electronics, and other equipment that must pass radiated-emissions limits without bulky shielding. The single 1:1 input-to-output ratio means it generates one spread-spectrum clock from one reference — no fanout, no zero-delay buffering. That rules out outdoor telecom cabinets, engine bays, or factory-floor environments where the ambient climbs above 70°C. If your design lives indoors on a desktop or inside an appliance, the temperature grade is fine. ## Package and footprint Housed in an 8-pin TSSOP (4.40 mm body width), surface-mount. No differential outputs — single-ended CMOS/TTL only. The divider/multiplier is marked No/No, so the output frequency is set by the reference and the PLL multiplication ratio (internal to the device, not user-configurable via external pins). ## Lifecycle and sourcing posture RoHS non-compliant per the listing, so if your BOM requires RoHS exemption or you're building for a market that enforces it, factor that in.","metaTitle":"IMIFS781BT Spread Spectrum Clock Generator, 82 MHz, PLL","metaDescription":"IMIFS781BT spread spectrum clock generator with PLL, 82 MHz max, CMOS/TTL I/O, 2.97V–5.5V supply, 8-TSSOP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Spread Spectrum Clock Generator","Input":"CMOS, TTL","Output":"CMOS, TTL","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","Frequency - Max":"82MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2.97V ~ 3.63V, 4.5V ~ 5.5V","Divider/Multiplier":"No/No","Number of Circuits":"1","Ratio - Input:Output":"1:1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"8-TSSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.64","stockQuantity":0,"priceTiers":[{"qty":466,"price":"$0.64000","currency":"USD"}]},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/bjpr36ars7/CYPRS07181-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"Does IMIFS781BT support spread spectrum modulation?","answer":"Yes, the IMIFS781BT is a spread spectrum clock generator. Its PLL modulates the output clock frequency to reduce EMI, which is the primary function of this part."},{"question":"What is the maximum frequency of IMIFS781BT?","answer":"The maximum output frequency is 82 MHz, with CMOS or TTL output levels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IMIFS781BT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IMIFS781BT 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}}