{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FL128SDSMFN003","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FL128SDSMFN003","canonicalUrl":"https://icboms.com/infineon/S25FL128SDSMFN003","factsUrl":"https://icboms.com/api/mcp/products/S25FL128SDSMFN003","rawCanonicalId":null},"summary":{"shortDescription":"Cypress S25FL128SDSMFN003, FL-S series, 128Mbit SPI Quad I/O NOR Flash, 80 MHz clock, 2.7-3.6V supply, -40 to 125°C, 16-SOIC wide-body package, Tape & Reel.","salesMarkdown":"## 128 Mbit SPI NOR Flash for code and data storage It communicates over a Quad I/O SPI interface at up to 80 MHz, delivering the read throughput needed for direct code execution (XIP) and firmware-over-the-air staging in embedded systems. At 80 MHz in Quad I/O mode, the part sustains roughly 40 MB/s read throughput on a good layout. That is enough to feed a Cortex-M7 or a mid-range RISC-V core executing from Flash without a cache miss penalty on sequential code. The Quad I/O interface also cuts the signal count to six pins (four data, one clock, one chip-select), which frees up board space and simplifies routing compared to a parallel NOR or NAND interface. ## 125°C rating — not just another industrial part Many serial NOR Flash parts top out at 85°C or 105°C. The 125°C rating covers under-hood automotive, downhole instrumentation, and sealed enclosures near hot power stages. If your BOM calls for 125°C operation, this part qualifies without a derating margin. For a new design or a production BOM, this removes the single-source obsolescence risk that haunts older NOR Flash densities.","metaTitle":"S25FL128SDSMFN003 128Mbit SPI NOR Flash, 80 MHz","metaDescription":"Cypress S25FL128SDSMFN003 128Mbit SPI Quad I/O NOR Flash in 16-SOIC. 80 MHz clock, 2.7-3.6V supply, -40 to 125°C. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"FL-S","Package":"Tape & Reel (TR)","Technology":"FLASH - NOR","Memory Size":"128Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","Clock Frequency":"80 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI - Quad I/O","Voltage - Supply":"2.7V ~ 3.6V","Base Product Number":"S25FL128","Memory Organization":"16M x 8","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"16-SOIC","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.3400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is S25FL128SDSMFN003 compatible with S25FL128S?","answer":"Yes. The base product number S25FL128 covers the 128 Mbit density across the FL-S family. Other S25FL128S variants share the same die and command set but may differ in package or temperature range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FL128SDSMFN003","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FL128SDSMFN003 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}