{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1390U-33+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1390U-33TR","canonicalUrl":"https://icboms.com/analog-devices/DS1390U-33TR","factsUrl":"https://icboms.com/api/mcp/products/DS1390U-33%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Maxim DS1390U-33+T&R, Clock/Calendar RTC, SPI interface, YY-MM-DD-dd date, HH:MM:SS:hh time, 2.97V to 5.5V supply, -40°C to 85°C, 10-uMAX/uSOP package.","salesMarkdown":"## Temperature grade and environment Rated for -40°C to 85°C, this RTC is suited for industrial enclosures, outdoor telecom pedestals, and factory-floor controllers where the ambient temperature swings beyond office-grade limits. The surface-mount 10-uMAX/uSOP footprint (3.00 mm width) keeps board area tight — a common constraint in panel-mount I/O modules and compact data loggers. ## Lifecycle and sourcing The DS1390U-33+T&R carries an Active product status and is ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect.","metaTitle":"DS1390U-33+T&R Real-Time Clock/Calendar, SPI, 10-uMAX","metaDescription":"Maxim DS1390U-33+T&R RTC with SPI interface, trickle-charger, alarm, industrial temp -40°C to 85°C. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"Clock/Calendar","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Alarm, Leap Year, Square Wave Output, Trickle-Charger","Interface":"SPI","Date Format":"YY-MM-DD-dd","Time Format":"HH:MM:SS:hh (12/24 hr)","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.97V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"10-uMAX/uSOP","Voltage - Supply, Battery":"1.3V ~ 5.5V","Current - Timekeeping (Max)":"175µA @ 2.97V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.43000","currency":"USD"},{"qty":10,"price":"$3.98000","currency":"USD"},{"qty":25,"price":"$3.76280","currency":"USD"},{"qty":100,"price":"$3.26110","currency":"USD"},{"qty":250,"price":"$3.09388","currency":"USD"},{"qty":500,"price":"$2.77614","currency":"USD"},{"qty":1000,"price":"$2.34132","currency":"USD"},{"qty":3000,"price":"$2.22425","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1390-DS1394.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does DS1390U-33+T&R support battery backup?","answer":"Yes. The DS1390U-33+T&R includes a dedicated battery-supply input (1.3V to 5.5V) for backup power, plus a trickle-charger to maintain a rechargeable backup cell or capacitor during main power."},{"question":"What is the closest pin-compatible alternative to DS1390U-33+T&R?","answer":"Within the Maxim SPI RTC family, the DS1390U-33+T&R shares the same 10-uMAX/uSOP footprint and SPI interface with other DS1390 variants. For a direct replacement, verify the supply voltage and temperature grade against the specific variant — no single pin-compatible alternate is listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1390U-33TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1390U-33TR 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}}