{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1337S+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1337S","canonicalUrl":"https://icboms.com/analog-devices/DS1337S","factsUrl":"https://icboms.com/api/mcp/products/DS1337S%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1337S+ real-time clock, Clock/Calendar type, I²C 2-Wire Serial interface, 1.8V~5.5V supply, 8-SOIC package, Tube.","salesMarkdown":"## 0.6 µA timekeeping current defines the battery budget The DS1337S+ draws 0.6 µA max in timekeeping mode at 1.3 V to 1.8 V — this is the current that drains the backup cell when the main supply is off. For a 220 mAh coin cell, that works out to roughly 42 years of theoretical shelf life before the battery is depleted, assuming no other load on the rail. The timekeeping circuit switches to the backup supply below the main supply threshold automatically. ## I²C interface and 8-SOIC package — board integration Communication is over a standard I²C, 2-wire serial bus — two pins (SCL, SDA) connect to the host controller. The device tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format, with built-in leap-year compensation through 2099. The square-wave output on the SQW pin can be programmed to 1 Hz, 4.096 kHz, 8.192 kHz, or 32.768 kHz — useful for driving a microcontroller wake-up or a charge pump without an external oscillator. ## Active production and compliance The device is rated for surface-mount assembly on standard 8-SOIC land patterns.","metaTitle":"Analog Devices DS1337S+ RTC Clock/Calendar, I2C, 8-SOIC","metaDescription":"DS1337S+ real-time clock from Analog Devices. I2C interface, 0.6µA timekeeping current at 1.3V-1.8V, -40°C to +85°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"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":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-SOIC","Current - Timekeeping (Max)":"0.6µA @ 1.3V ~ 1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.10000","currency":"USD"},{"qty":10,"price":"$3.67900","currency":"USD"},{"qty":25,"price":"$3.47760","currency":"USD"},{"qty":100,"price":"$3.01400","currency":"USD"},{"qty":250,"price":"$2.85944","currency":"USD"},{"qty":500,"price":"$2.56576","currency":"USD"},{"qty":1000,"price":"$2.16390","currency":"USD"},{"qty":2500,"price":"$2.05570","currency":"USD"},{"qty":5000,"price":"$1.97842","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the timekeeping current of DS1337S+ at the backup voltage?","answer":"The maximum timekeeping current is 0.6 µA at 1.3 V to 1.8 V on the backup supply. This low draw allows a small coin cell to maintain the clock for years when the main power is off."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1337S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1337S when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}