{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1305+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1305","canonicalUrl":"https://icboms.com/analog-devices/DS1305","factsUrl":"https://icboms.com/api/mcp/products/DS1305%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1305+ SPI real-time clock, 96B NVSRAM, trickle-charger, 16-DIP (0.300\", 7.62mm), 2V–5.5V supply, 0°C–70°C.","salesMarkdown":"## SPI RTC with 96B NVSRAM and trickle-charger The DS1305+ is a full-featured SPI real-time clock that tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format, with an integrated 96-byte NVSRAM for storing calibration or configuration data without an external EEPROM. It runs from a single 2V to 5.5V supply and draws 25.3µA to 81µA in timekeeping (depending on supply voltage) — low enough for battery-backed designs where the main rail drops out and the RTC must keep running on a coin cell. ## Package and integration fit Housed in a 16-pin DIP (0.300\" body width, 7.62mm pitch) with through-hole mounting — the DS1305+ is a direct drop-in for breadboard prototyping or legacy through-hole PCB layouts that need a SPI RTC without migrating to a surface-mount package. The 16-PDIP footprint is standard, so the DS1305+ mates with a 16-pin DIP socket or solders into plated through-holes on a 0.100\" pitch grid. ## Built-in features that reduce external BOM The battery-backup supply input (Vbatin) accepts 2V to 5.5V, matching the main supply range, so the same coin-cell chemistry works for both the RTC core and the NVSRAM retention.","metaTitle":"DS1305+ Analog Devices RTC, SPI, 96B NVSRAM, 16-DIP","metaDescription":"Active-production DS1305+ SPI real-time clock from Analog Devices. 96B NVSRAM, trickle charger, 2V–5.5V supply. 16-DIP package, 0°C–70°C. Quoted to order.","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, NVSRAM, Trickle-Charger","Interface":"SPI","Date Format":"YY-MM-DD-dd","Memory Size":"96B","Time Format":"HH:MM:SS (12/24 hr)","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"16-PDIP","Voltage - Supply, Battery":"2V ~ 5.5V","Current - Timekeeping (Max)":"25.3µA ~ 81µA @ 2V ~ 5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.57000","currency":"USD"},{"qty":10,"price":"$6.84200","currency":"USD"},{"qty":25,"price":"$6.52360","currency":"USD"},{"qty":100,"price":"$5.66430","currency":"USD"},{"qty":250,"price":"$5.40976","currency":"USD"},{"qty":500,"price":"$4.93242","currency":"USD"},{"qty":1000,"price":"$4.29598","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the DS1305+ used for?","answer":"It is a SPI real-time clock (RTC) that keeps time and date with alarm, leap-year correction, and 96 bytes of non-volatile SRAM for storing calibration or user data. It is used in embedded systems, data loggers, industrial controllers, and any application that needs accurate timekeeping with a simple SPI interface."},{"question":"What compliance documentation does Analog Devices provide for the DS1305+?","answer":"The DS1305+ is ROHS3 compliant. Analog Devices provides a datasheet and RoHS certificate of compliance. No UL or IEC certification is listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1305","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1305 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T18:26:21.188Z","lastPublished":"2026-07-20T18:26:21.188Z","indexable":true}}