{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1337+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1337","canonicalUrl":"https://icboms.com/analog-devices/DS1337","factsUrl":"https://icboms.com/api/mcp/products/DS1337%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1337+ serial real-time clock, I²C 2-wire interface, 8-DIP through-hole package, 1.8V to 5.5V supply, -40°C to 85°C operating temperature.","salesMarkdown":"## RTC with I²C bus — what the ratings mean for the BOM The Maxim Integrated DS1337+ is a serial real-time clock (RTC) providing clock/calendar functionality with an I²C (2-wire serial) interface. It tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format, with integrated alarm, leap-year compensation, and a programmable square-wave output. The part is supplied in an 8-DIP through-hole package (0.300\" body width, 7.62 mm pitch) and operates from a single 1.8 V to 5.5 V supply. The industrial temperature range (-40°C to 85°C) covers outdoor telecom cabinets, factory-floor controllers, and battery-backed instrumentation where the RTC must keep time across power cycles. ## Timekeeping current — battery-life anchor The DS1337+ draws a maximum timekeeping current of 0.6 µA at 1.3 V to 1.8 V on the backup supply. That figure drives the coin-cell lifetime calculation. ## Active production — no LTB pressure ROHS3 compliant. No last-time-buy notice or end-of-life timeline is published. For procurement, that means the part can be specified into new designs without obsolescence risk, and the supply channel is standard distribution — not surplus or broker.","metaTitle":"DS1337+ RTC Clock/Calendar I²C 8-DIP, 1.8V-5.5V","metaDescription":"Maxim DS1337+ real-time clock with I²C interface, 0.6µA timekeeping current, -40°C to 85°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Clock/Calendar","Package":"Tube","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":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-PDIP","Current - Timekeeping (Max)":"0.6µA @ 1.3V ~ 1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.20000","currency":"USD"},{"qty":10,"price":"$3.77400","currency":"USD"},{"qty":25,"price":"$3.56800","currency":"USD"},{"qty":100,"price":"$3.09210","currency":"USD"},{"qty":250,"price":"$2.93356","currency":"USD"},{"qty":500,"price":"$2.63226","currency":"USD"},{"qty":1000,"price":"$2.21998","currency":"USD"},{"qty":2500,"price":"$2.10898","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1337-DS1337C.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can DS1337+ replace DS1307 directly?","answer":"The DS1337+ is pin-compatible with the DS1307 in the 8-DIP package and uses the same I²C interface, so a direct socket replacement is possible. However, verify the register map and alarm features — the DS1337+ adds a square-wave output and leap-year compensation that the DS1307 lacks."},{"question":"Is DS1337+ compatible with 3.3V logic?","answer":"Yes. The 1.8 V to 5.5 V supply range means the DS1337+ operates directly at 3.3 V, and its I²C interface is compatible with 3.3 V logic levels without additional components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1337","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1337 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}}