{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1090U-1+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1090U-1T","canonicalUrl":"https://icboms.com/analog-devices/DS1090U-1T","factsUrl":"https://icboms.com/api/mcp/products/DS1090U-1%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1090U-1+T EconOscillator™ Clock Generator, 8 MHz max, 3V to 5.5V supply, CMOS/TTL output, 1:1 input:output ratio, 8-uMAX/uSOP package, -40°C to 85°C, Active, ROHS3 Compliant.","salesMarkdown":"## What the DS1090U-1+T does in the timing chain The Maxim Integrated DS1090U-1+T is a single-circuit clock generator from the EconOscillator™ family. It takes a clock input and outputs a CMOS or TTL-level clock at up to 8 MHz, with a 1:1 input-to-output ratio and no internal PLL. The wide supply range of 3V to 5.5V lets it run from either a 3.3V or 5V rail without a separate regulator, which simplifies power distribution on mixed-voltage boards. The industrial temperature grade of -40°C to 85°C qualifies it for factory-floor controls, outdoor telecom cabinets, and motor-drive enclosures where the ambient can swing. ## 8 MHz ceiling and supply flexibility The 8 MHz maximum frequency is the hard ceiling for this part — if your bus or processor needs a faster reference clock, this is not the generator. For designs that run at 8 MHz or below, the DS1090U-1+T delivers a clean CMOS or TTL output without the jitter and lock-time overhead of a PLL-based part. The 3V to 5.5V supply range means the same BOM line works across 3.3V and 5V systems; just confirm the input clock amplitude meets the logic threshold at your chosen rail. The divider/multiplier is yes/no — it divides but does not multiply, so the output frequency is always the input frequency divided by an internal factor, not a multiplied-up version. ## Package and footprint for the layout The DS1090U-1+T is offered in an 8-uMAX/uSOP package (3.00 mm width, 8-lead TSSOP/MSOP footprint). The supplier device package is 8-uMAX/uSOP, which is the standard Maxim uMAX body. For PCB layout, the 0.118-inch (3.00 mm) width and 0.0256-inch (0.65 mm) lead pitch are the critical dimensions. The surface-mount package is MSL 3 out of the bag — bake before reflow if the moisture-barrier bag has been open past the floor-life window. No exposed thermal pad, so dissipation is through the leads and the board copper. ## Lifecycle and compliance status The DS1090U-1+T is listed as Active with ROHS3 compliance. The ROHS3 compliance covers the full substance restriction list, which avoids the administrative overhead of managing exemptions.","metaTitle":"DS1090U-1+T Clock Generator, 8 MHz, 3-5.5V, 8-uMAX/uSOP","metaDescription":"Maxim Integrated DS1090U-1+T EconOscillator clock generator, 8 MHz max, 3V to 5.5V supply, 8-uMAX/uSOP, -40 to 85°C. Active, RoHS3.","metaKeywords":null},"attributes":{"series":"EconOscillator™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"No","Type":"Clock Generator","Input":"Clock","Output":"CMOS, TTL","Series":"EconOscillator™","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Frequency - Max":"8MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-uMAX/uSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.24079","stockQuantity":0,"priceTiers":[{"qty":3000,"price":"$1.24079","currency":"USD"},{"qty":6000,"price":"$1.19483","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1090.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency range of DS1090U-1+T?","answer":"The maximum output frequency is 8 MHz. The part accepts a clock input and outputs a CMOS or TTL-level clock at the same frequency (1:1 ratio) or divided down — it does not multiply the input frequency."},{"question":"Is DS1090U-1+T RoHS compliant?","answer":"Yes, it is ROHS3 Compliant per the manufacturer's listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1090U-1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1090U-1T 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}}