{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FS256SDSNFI001","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FS256SDSNFI001","canonicalUrl":"https://icboms.com/infineon/S25FS256SDSNFI001","factsUrl":"https://icboms.com/api/mcp/products/S25FS256SDSNFI001","rawCanonicalId":null},"summary":{"shortDescription":"Cypress FS-S series S25FS256SDSNFI001, 256Mbit FLASH - NOR, SPI - Quad I/O, QPI interface, 80 MHz clock, 1.7V ~ 2V supply, -40°C ~ 85°C, 8-WSON (6x8) package.","salesMarkdown":"The S25FS256SDSNFI001: It supports SPI with Quad I/O and QPI protocol at an 80 MHz clock rate. ## 80 MHz SPI clock — what it buys the firmware engineer The 80 MHz clock frequency is the maximum SPI clock the device supports. In Quad I/O mode, each clock edge transfers four bits. ## 1.7 V to 2 V supply — a narrow rail that demands attention The 1.7 V minimum is low enough to ride through a battery discharge curve on a single Li-ion cell near end-of-life, but the 2 V ceiling means you cannot run it from a 2.5 V or 3.3 V supply without a regulator. If your board already has a 1.8 V rail, this part drops in without an extra LDO. ## Package and thermal: 8-WSON with exposed pad Skipping the via stitch or leaving the pad floating will raise the junction temperature under sustained quad-read operation, especially at 85°C ambient. Cypress (now Infineon) continues to manufacture the FS-S series. The ROHS3 compliance is confirmed.","metaTitle":"Cypress S25FS256SDSNFI001 256Mbit NOR Flash","metaDescription":"Cypress S25FS256SDSNFI001 256Mbit FLASH - NOR, 80MHz SPI Quad I/O QPI, 1.7V-2V, -40°C to 85°C, 8-WSON. Active lifecycle.","metaKeywords":null},"attributes":{"series":"FS-S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"FS-S","Package":"Tube","Technology":"FLASH - NOR","Memory Size":"256Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"8-WDFN Exposed Pad","Clock Frequency":"80 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI - Quad I/O, QPI","Voltage - Supply":"1.7V ~ 2V","Memory Organization":"32M x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-WSON (6x8)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.53","priceTiers":[{"qty":200,"price":"$3.13600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3dacfaf83e491952e2cb1c0f4a64c8b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/S25FS256SDSNFI001/alternatives.json"},"ai":{"faq":[{"question":"Does S25FS256SDSNFI001 support Quad SPI?","answer":"Yes. The memory interface includes SPI - Quad I/O and QPI modes. Quad I/O uses four data lines for reads and writes, and QPI extends quad operation to the command phase for reduced overhead."},{"question":"What is the equivalent part for S25FS256SDSNFI001?","answer":"The closest functional peer in the same Cypress FS-S family is the S25FS512SAGNFI011, which doubles the density to 512 Mbit and raises the clock to 133 MHz. It shares the same 1.7 V supply range, SPI Quad I/O interface, and 8-WSON package footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FS256SDSNFI001","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FS256SDSNFI001 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}}