{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS12R885S-33+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS12R885S-33","canonicalUrl":"https://icboms.com/analog-devices/DS12R885S-33","factsUrl":"https://icboms.com/api/mcp/products/DS12R885S-33%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS12R885S-33+ Clock/Calendar RTC, Parallel Interface, 114B NVSRAM, 24-SOIC (0.295\", 7.50mm Width), Tube, Active.","salesMarkdown":"## What the 24-SOIC footprint means for your board The DS12R885S-33+ comes in a 24-SOIC wide-body (0.295\", 7.50 mm width) surface-mount package. That footprint is standard for SOIC-300 mil — the same land pattern as most 24-pin SOIC serial EEPROMs and SRAMs, so the board layout is a drop-in if you already have that footprint on the PCB. Supply range is 2.97 V to 3.63 V on the main rail, with a separate battery-backup input accepting 2 V to 3.05 V. Timekeeping current maxes out at 2 mA across the full supply range — the battery drain during backup is low enough that a 3 V coin cell holds the RTC for years. ## Integrated features beyond the clock This is not just a timekeeper — it includes 114 bytes of NVSRAM (non-volatile SRAM) that retains data through power loss, plus a trickle-charger for maintaining a rechargeable backup battery. The alarm and square-wave output let the RTC wake a sleeping host processor without polling. The parallel interface uses a standard 8-bit bus — address and data lines are multiplexed, so it ties directly to a microcontroller's memory-mapped I/O or an FPGA's peripheral bus without glue logic. Date format is YY-MM-DD-dd; time format is HH:MM:SS with 12/24-hour selection.","metaTitle":"DS12R885S-33+ RTC Clock/Calendar, 24-SOIC, Active","metaDescription":"DS12R885S-33+ from Analog Devices — RTC Clock/Calendar in 24-SOIC, 2.97V–3.63V supply, 2mA timekeeping current, -40°C to +85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Type":"Clock/Calendar","Package":"Tube","Features":"Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger","Interface":"Parallel","Date Format":"YY-MM-DD-dd","Memory Size":"114B","Time Format":"HH:MM:SS (12/24 hr)","Mounting Type":"Surface Mount","Package / Case":"24-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.97V ~ 3.63V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"24-SOIC","Voltage - Supply, Battery":"2V ~ 3.05V","Current - Timekeeping (Max)":"2mA @ 2.97V ~ 3.63V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.62000","currency":"USD"},{"qty":10,"price":"$5.04800","currency":"USD"},{"qty":25,"price":"$4.77240","currency":"USD"},{"qty":100,"price":"$4.13600","currency":"USD"},{"qty":250,"price":"$3.92384","currency":"USD"},{"qty":500,"price":"$3.52086","currency":"USD"},{"qty":1000,"price":"$2.96940","currency":"USD"},{"qty":2500,"price":"$2.82093","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS12R885S-33","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS12R885S-33 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}}