{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1225AB-70+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1225AB-70","canonicalUrl":"https://icboms.com/analog-devices/DS1225AB-70","factsUrl":"https://icboms.com/api/mcp/products/DS1225AB-70%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1225AB-70+, NVSRAM (Non-Volatile SRAM), 64Kbit (8K x 8), Parallel Interface, 70 ns Access Time, 4.75V ~ 5.25V Supply, 0°C ~ 70°C, 28-EDIP Through Hole Package, Tube.","salesMarkdown":"## NVSRAM with 70 ns access — what it means for the bus The DS1225AB-70+ is a 64Kbit non-volatile SRAM from Maxim Integrated, organised as 8K x 8 bits with a parallel interface and a 70 ns access time. It combines the fast read/write cycle of a standard SRAM with non-volatile storage — data is retained when power is removed, without requiring a battery or EEPROM write cycle. This makes it a fit for applications that need to preserve calibration constants, configuration tables, or boot parameters across power cycles, while still allowing byte-wide random access at SRAM speeds. The 70 ns access time is the key timing parameter: it defines the minimum read-cycle time the host controller must allow, and it matches the bus timing of many legacy 8-bit microcontrollers and DSPs that expect a 70 ns or slower memory. If your controller's memory bus runs faster than 70 ns, you will need to insert wait states or look at a faster NVSRAM variant. ## Lifecycle and sourcing reality For a BOM line that needs this exact part, there is no forced migration risk today. It is an active, ROHS3-compliant part.","metaTitle":"DS1225AB-70+ NVSRAM 64Kbit Parallel 70ns 28-EDIP","metaDescription":"DS1225AB-70+ 64Kbit NVSRAM, 70 ns access time, parallel interface, 5V supply, 0-70°C, 28-EDIP. Active production, ROHS3 compliant.","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":"70 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":"4.75V ~ 5.25V","Memory Organization":"8K x 8","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"28-EDIP","Write Cycle Time - Word, Page":"70ns"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.99","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.99000","currency":"USD"},{"qty":10,"price":"$19.54700","currency":"USD"},{"qty":25,"price":"$19.33760","currency":"USD"},{"qty":50,"price":"$18.86060","currency":"USD"},{"qty":100,"price":"$16.55690","currency":"USD"},{"qty":250,"price":"$15.99840","currency":"USD"},{"qty":500,"price":"$15.56790","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS1225AB-DS1225AD.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for DS1225AB-70+?","answer":"There is no direct replacement from another manufacturer — this is a proprietary Maxim NVSRAM architecture. The DS1225AB-70+ is the faster version and can replace the -100 in designs that can handle the faster timing."},{"question":"What is DS1225AB-70+'s listed technology?","answer":"The DS1225AB-70+ uses NVSRAM (Non-Volatile SRAM) technology — it combines the fast read/write of SRAM with non-volatile data retention, without requiring a battery."},{"question":"Can I use DS1225AB-70+ as a replacement for DS1225AB-100?","answer":"Yes — the DS1225AB-70+ is pin-compatible with the DS1225AB-100 and has a faster 70 ns access time versus 100 ns. It can directly replace the -100 in a socket if the controller can handle the faster timing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1225AB-70","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1225AB-70 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}}