{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1225AD-85+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1225AD-85","canonicalUrl":"https://icboms.com/analog-devices/DS1225AD-85","factsUrl":"https://icboms.com/api/mcp/products/DS1225AD-85%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS1225AD-85+ NVSRAM, 64Kbit (8K x 8), 85 ns access time, parallel interface, 4.5V-5.5V supply, 0°C to 70°C, 28-pin EDIP (600-mil) through-hole, ROHS3 compliant.","salesMarkdown":"## NVSRAM technology — SRAM speed with battery-backed retention The DS1225AD-85+: This is a Non-Volatile SRAM (NVSRAM) — it combines the fast read/write cycle of a standard SRAM (85 ns access time, 85 ns write cycle) with an integrated lithium energy cell that retains the memory contents when the main supply is removed. No external battery, no EEPROM write-cycle wear, and no data-loss during power transitions. The memory is organized as 8K x 8 bits (64Kbit total) with a parallel interface. ## 28-pin EDIP footprint — legacy through-hole, direct socket replacement Housed in a 28-pin EDIP (600-mil wide, 0.100-inch pitch) through-hole module. The EDIP is the standard footprint for this class of NVSRAM — it drops into existing sockets on boards designed for the Dallas Semiconductor/Maxim DS1225 series. The supplier device package (28-EDIP) matches the industry-standard pinout for 8K x 8 NVSRAMs. Shipping in Tube packaging — typical for through-hole DIP modules. No tape-and-reel option; this is a manual-insertion part for through-hole assembly lines or rework benches. ROHS3 compliant (2015/863/EU) — no lead, mercury, cadmium, or restricted phthalates. No RoHS exemption is required for this part, so it ships freely into EU-regulated markets without documentation overhead. Availability and current pricing confirmed at RFQ time.","metaTitle":"Analog Devices DS1225AD-85+ NVSRAM, 64Kbit, 85 ns, 28-EDIP","metaDescription":"Active-production NVSRAM from Analog Devices. 64Kbit (8K x 8), 85 ns access, parallel interface, 28-pin EDIP. ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Technology":"NVSRAM (Non-Volatile SRAM)","Access Time":"85 ns","Memory Size":"64Kbit","Memory Type":"Non-Volatile","Memory Format":"NVSRAM","Mounting Type":"Through Hole","Package / Case":"28-DIP Module (0.600\\\", 15.24mm)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"4.5V ~ 5.5V","Memory Organization":"8K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-EDIP","Write Cycle Time - Word, Page":"85ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$22.12","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$22.12000","currency":"USD"},{"qty":10,"price":"$20.59900","currency":"USD"},{"qty":25,"price":"$20.37840","currency":"USD"},{"qty":50,"price":"$19.87580","currency":"USD"},{"qty":100,"price":"$17.44800","currency":"USD"},{"qty":250,"price":"$16.85944","currency":"USD"},{"qty":500,"price":"$16.40576","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the 85 ns access time and why does it matter for my system bus?","answer":"The 85 ns access time is the maximum time the memory takes to present valid data after the address is latched. For a system with a 10 MHz bus clock (100 ns cycle), this leaves only 15 ns of timing margin after the access completes — tight but workable if the bus controller has zero-wait-state capability. A faster part (70 ns or 55 ns) would add margin, but the 85 ns variant is the standard speed grade for most legacy 8-bit microcontroller interfaces."},{"question":"Does this NVSRAM require an external battery or supercapacitor?","answer":"No. The DS1225AD-85+ integrates a lithium energy cell inside the EDIP module. The memory retains data for years without external power — no coin cell, no supercapacitor, and no battery holder on the PCB. This is the defining advantage over battery-backed SRAM modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1225AD-85","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1225AD-85 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}}