{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1341U+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1341UTR","canonicalUrl":"https://icboms.com/analog-devices/DS1341UTR","factsUrl":"https://icboms.com/api/mcp/products/DS1341U%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Maxim DS1341U+T&R, Clock/Calendar RTC, I2C 2-Wire Serial, Alarm/Leap Year/Square Wave Output, 1.8V–5.5V, 0.5µA–0.6µA Timekeeping, -40°C–85°C, 8-uMAX/uSOP, Tape & Reel.","salesMarkdown":"## RTC with sub-microamp timekeeping for battery-backed designs The DS1341U+T&R is a real-time clock/calendar IC that tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format, with automatic leap-year compensation. It communicates over an I2C-compatible 2-wire serial interface. ## Active lifecycle and compliance It is ROHS3 compliant. No official second-source or pin-compatible replacement is listed in the Maxim portfolio, so the part is single-sourced; however, the active lifecycle and broad distributor stocking mitigate supply risk.","metaTitle":"Maxim DS1341U+T&R RTC Clock/Calendar, I2C, 8-uMAX","metaDescription":"Maxim DS1341U+T&R RTC clock/calendar with I2C interface, alarm, leap year, square wave output. 1.8V–5.5V supply, 0.5µA timekeeping current.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"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)":"0.5µA ~ 0.6µA @ 3V ~ 5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.45000","currency":"USD"},{"qty":10,"price":"$3.10100","currency":"USD"},{"qty":25,"price":"$2.93160","currency":"USD"},{"qty":100,"price":"$2.54070","currency":"USD"},{"qty":250,"price":"$2.41036","currency":"USD"},{"qty":500,"price":"$2.16282","currency":"USD"},{"qty":1000,"price":"$1.82406","currency":"USD"},{"qty":3000,"price":"$1.73286","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/DS1341-DS1342.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DS1341U+T&R RoHS compliant?","answer":"Yes, the DS1341U+T&R is ROHS3 compliant, meeting the latest EU RoHS requirements."},{"question":"What is the closest pin-compatible alternative to DS1341U+T&R in this component family?","answer":"Maxim does not list a direct pin-compatible second-source or replacement for the DS1341U+T&R within its own portfolio. For a functionally similar I2C RTC in the same package, consider the DS1340U+ (8-uMAX), which also offers a clock/calendar with trickle charger, but verify pin compatibility against the datasheet."},{"question":"How accurate is the DS1341U+T&R RTC?","answer":"The DS1341U+T&R uses an external 32.768 kHz crystal for timekeeping; its accuracy depends entirely on the crystal's tolerance and temperature stability. The RTC itself does not include on-chip temperature compensation or trimming registers, so the overall timekeeping error is dominated by the crystal's ppm rating. A typical ±20 ppm crystal yields about ±1.7 seconds per day deviation."},{"question":"How to set alarm on DS1341U RTC?","answer":"The alarm is set by writing the desired alarm time and date match registers (seconds, minutes, hours, day/date) via I2C, then enabling the alarm interrupt in the control register. The alarm can be configured for a one-time match or a repeating match (e.g., every minute, every hour). The alarm output is available on the INT pin or can be routed to the square-wave output pin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1341UTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1341UTR 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}}