{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1501WZN+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1501WZNTR","canonicalUrl":"https://icboms.com/analog-devices/DS1501WZNTR","factsUrl":"https://icboms.com/api/mcp/products/DS1501WZN%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1501WZN+T&R Clock/Calendar RTC, Parallel Interface, 256B NVSRAM, Alarm, Watchdog Timer, Y2K, 28-SOIC (0.295\", 7.50mm Width), Tape & Reel.","salesMarkdown":"## Timekeeping and system supervision in one package The DS1501WZN+T&R from Analog Devices is a parallel-interface real-time clock (RTC) that combines timekeeping with a 256-byte NVSRAM, alarm, watchdog timer, and square-wave output — a single-chip solution for embedded systems that need to track calendar time and supervise processor activity. It formats time as HH:MM:SS in 24-hour mode and date as YY-MM-DD-dd, with leap-year correction through 2099 and Y2K compliance built in. ## Supply rails and power budget for the BOM The main supply range is 3 V to 3.6 V, with a separate battery-backup input accepting 2.5 V to 3.7 V — the RTC maintains timekeeping and NVSRAM retention when the main rail drops. Timekeeping current draw is 4 mA maximum across the full supply range, which sets the battery-life floor in backup mode.","metaTitle":"DS1501WZN+T&R RTC Clock/Calendar, Parallel, 256B NVSRAM","metaDescription":"Analog Devices DS1501WZN+T&R RTC with alarm, watchdog, Y2K. 3V-3.6V supply, -40°C to +85°C, 28-SOIC. Active, ROHS3. Request a quote.","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, 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":"$13.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.15000","currency":"USD"},{"qty":10,"price":"$12.08600","currency":"USD"},{"qty":25,"price":"$11.58480","currency":"USD"},{"qty":100,"price":"$10.20710","currency":"USD"},{"qty":250,"price":"$9.70608","currency":"USD"},{"qty":500,"price":"$9.07990","currency":"USD"},{"qty":1000,"price":"$8.32846","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DS1501WZN+T&R and get a price?","answer":"The DS1501WZN+T&R is an active, ROHS3-compliant part from Analog Devices."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1501WZNTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1501WZNTR 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}}