{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1337U+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1337UTR","canonicalUrl":"https://icboms.com/analog-devices/DS1337UTR","factsUrl":"https://icboms.com/api/mcp/products/DS1337U%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Maxim DS1337U+T&R Clock/Calendar RTC, I²C 2-Wire Serial interface, Alarm/Leap Year/Square Wave Output, 1.8V–5.5V supply, -40°C to +85°C, 8-uMAX/uSOP package.","salesMarkdown":"## What the DS1337U+T&R is and where it fits The Maxim DS1337U+T&R is a Clock/Calendar real-time clock with an I²C (2-wire serial) interface, integrating alarm, leap-year compensation, and a programmable square-wave output. ## Timekeeping current — why 0.6 µA matters for the BOM The 0.6 µA maximum timekeeping current at 1.3 V–1.8 V is the headline spec for battery-life budgeting. In a coin-cell-backed RTC application, that draw extends backup runtime. ## I²C interface and features Communication is over a standard I²C (2-wire serial) bus, compatible with virtually every modern MCU. The alarm output and square-wave output (programmable frequency) can serve as a wake-up source or a periodic interrupt without polling the bus. ## Lifecycle and compliance The DS1337U+T&R is listed as Active with ROHS3 compliance. The part is sourced through independent distribution and quoted to order against an RFQ.","metaTitle":"DS1337U+T&R Real-Time Clock, I²C, 0.6µA, 8-uMAX/uSOP","metaDescription":"Maxim DS1337U+T&R Clock/Calendar RTC with I²C interface, alarm, square-wave output. 0.6µA timekeeping at 1.3V–1.8V. Industrial temp range. Active, 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","Interface":"I²C, 2-Wire Serial","Date Format":"YY-MM-DD-dd","Time Format":"HH:MM:SS (12/24 hr)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-uMAX/uSOP","Current - Timekeeping (Max)":"0.6µA @ 1.3V ~ 1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.40000","currency":"USD"},{"qty":10,"price":"$3.05300","currency":"USD"},{"qty":25,"price":"$2.88600","currency":"USD"},{"qty":100,"price":"$2.50130","currency":"USD"},{"qty":250,"price":"$2.37300","currency":"USD"},{"qty":500,"price":"$2.12928","currency":"USD"},{"qty":1000,"price":"$1.79578","currency":"USD"},{"qty":3000,"price":"$1.70599","currency":"USD"},{"qty":6000,"price":"$1.64186","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1337-DS1337C.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DS1337U+T&R RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is the difference between DS1337U+T&R and DS1337S+T&R?","answer":"The DS1337U+T&R comes in the 8-uMAX/uSOP package, while the DS1337S+T&R is in an 8-SOIC package. The uMAX is a smaller footprint (3.00 mm width vs ~3.9 mm for SOIC-8) with a finer 0.65 mm pitch. Functionally both are the same I²C RTC with identical features and electrical specs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1337UTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1337UTR 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}}