{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1673E-3+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1673E-3","canonicalUrl":"https://icboms.com/analog-devices/DS1673E-3","factsUrl":"https://icboms.com/api/mcp/products/DS1673E-3%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1673E-3+ Portable System Controller, Real-Time Clock, 20-TSSOP, Tube, 2.7V-3.3V, 3-Wire Serial, Alarm, Watchdog Timer.","salesMarkdown":"## Portable system controller with integrated RTC The DS1673E-3+ is a portable system controller from Analog Devices that integrates a real-time clock (RTC) with alarm, leap-year compensation, and a watchdog timer. It communicates over a 3-wire serial interface and tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format. ## Supply range and timekeeping current Operates from a 2.7V to 3.3V main supply, with a separate battery backup input from 2.5V to 3.7V. Timekeeping current draw is 100µA maximum at 3V, which sets the battery-life budget for portable designs where the RTC must keep time while the main rail is off. ## 20-TSSOP package and board integration Housed in a 20-TSSOP (4.40mm width) surface-mount package, the DS1673E-3+ occupies a compact footprint for space-constrained portable-system PCBs. The supplier device package is the same 20-TSSOP, so the land pattern matches the standard JEDEC MO-153 outline for this body width.","metaTitle":"Analog Devices DS1673E-3+ RTC, Portable System Controller","metaDescription":"DS1673E-3+ from Analog Devices: portable system controller RTC, 2.7-3.3V supply, 100µA timekeeping, 3-wire serial, 20-TSSOP. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Portable System Controller","Package":"Tube","Features":"Alarm, Leap Year, Watchdog Timer","Interface":"3-Wire Serial","Date Format":"YY-MM-DD-dd","Time Format":"HH:MM:SS (12/24 hr)","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 3.3V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"20-TSSOP","Voltage - Supply, Battery":"2.5V ~ 3.7V","Current - Timekeeping (Max)":"100µA @ 3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.11000","currency":"USD"},{"qty":10,"price":"$10.21400","currency":"USD"},{"qty":25,"price":"$9.79080","currency":"USD"},{"qty":100,"price":"$8.62660","currency":"USD"},{"qty":250,"price":"$8.20320","currency":"USD"},{"qty":500,"price":"$7.67398","currency":"USD"},{"qty":1000,"price":"$7.03889","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the DS1673E-3+ used for?","answer":"The DS1673E-3+ is a portable system controller with an integrated real-time clock, alarm, leap-year compensation, and watchdog timer. It is used in battery-powered or portable equipment that needs to track time and date over a 3-wire serial interface while consuming minimal current (100µA max at 3V) during timekeeping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1673E-3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1673E-3 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}}