{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1501WZN+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1501WZN","canonicalUrl":"https://icboms.com/analog-devices/DS1501WZN","factsUrl":"https://icboms.com/api/mcp/products/DS1501WZN%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1501WZN+, Clock/Calendar RTC, Parallel Interface, 256B NVSRAM, Alarm, Watchdog Timer, Y2K, 3V-3.6V, -40°C to 85°C, 28-SOIC, Tube.","salesMarkdown":"## RTC with integrated NVSRAM and watchdog — what this part packs The DS1501WZN+ from Analog Devices is a parallel-interface real-time clock (RTC) that also integrates 256 bytes of NVSRAM, a watchdog timer, an alarm, a square wave output, and Y2K/leap-year tracking. It keeps time in HH:MM:SS (24-hour) and YY-MM-DD-dd date formats. The parallel bus makes it a direct drop-in for designs that already use a byte-wide RTC interface — no SPI or I²C translation needed. ## Supply and temperature — what the ratings mean for the BOM Industrial temperature grade (-40°C to 85°C) covers outdoor telecom cabinets, factory-floor controllers, and automotive cabin-adjacent modules. No derating needed for the RTC function across that span. ## Lifecycle and sourcing ROHS3 compliant.","metaTitle":"DS1501WZN+ RTC Clock/Calendar, Parallel, 256B NVSRAM","metaDescription":"DS1501WZN+ RTC from Analog Devices. Parallel interface, 256B NVSRAM, watchdog timer, alarm, Y2K. Industrial temp -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Clock/Calendar","Package":"Tube","Features":"Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K","Interface":"Parallel","Date Format":"YY-MM-DD-dd","Memory Size":"256B","Time Format":"HH:MM:SS (24 hr)","Mounting Type":"Surface Mount","Package / Case":"28-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"28-SOIC","Voltage - Supply, Battery":"2.5V ~ 3.7V","Current - Timekeeping (Max)":"4mA @ 3V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$14.57000","currency":"USD"},{"qty":10,"price":"$13.39200","currency":"USD"},{"qty":25,"price":"$12.83640","currency":"USD"},{"qty":100,"price":"$11.31010","currency":"USD"},{"qty":250,"price":"$10.75500","currency":"USD"},{"qty":500,"price":"$10.06112","currency":"USD"},{"qty":1000,"price":"$9.22847","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1501-DS1511.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does DS1501WZN+ have a watchdog timer?","answer":"Yes, the DS1501WZN+ includes a watchdog timer as one of its integrated features, along with alarm, leap year compensation, NVSRAM, square wave output, and Y2K tracking."},{"question":"Does DS1501WZN+ support battery backup?","answer":"Yes, it has a dedicated battery backup supply input (2.5V to 3.7V) that maintains timekeeping and NVSRAM contents when the main supply drops."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1501WZN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1501WZN 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}}