{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FS128SAGMFI101","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FS128SAGMFI101","canonicalUrl":"https://icboms.com/infineon/S25FS128SAGMFI101","factsUrl":"https://icboms.com/api/mcp/products/S25FS128SAGMFI101","rawCanonicalId":null},"summary":{"shortDescription":"Cypress FS-S series S25FS128SAGMFI101, 128Mbit NOR Flash, SPI Quad I/O & QPI, 133 MHz clock, 1.7V–2V supply, 8-SOIC, -40°C to 85°C.","salesMarkdown":"## What this NOR flash is and where it fits The Cypress S25FS128SAGMFI101 is a 128 Mbit NOR flash memory from the FS-S series, organized 16M x 8 and accessed over an SPI bus that supports Quad I/O and QPI protocols at up to 133 MHz. It runs on a 1.7V to 2V supply rail — not the common 3.3V — so it is built for low-voltage core domains in networking gear, base stations, and industrial controllers where the main SoC or FPGA already runs at 1.8V. The 8-SOIC package is a standard footprint, easy to hand-rework if needed. ## Supply voltage — the spec that trips people up The 1.7V to 2V supply range is the single most important check before you drop this into a BOM. It will not work on a 3.3V SPI bus without a level shifter. If your design already has a 1.8V rail, this part is a natural fit; if not, you are adding a regulator just for the flash. The sibling S25FL128SAGNFI011 runs at 2.7V to 3.6V and is pin-compatible, so that is the swap if you need 3.3V. ## Interface and clock speed Quad I/O and QPI support means the part can deliver sustained read throughput well above a standard SPI part, useful for code shadowing or FPGA configuration storage. The 133 MHz clock rate is the top end — real throughput depends on the controller's drive strength and board layout, but with a clean signal path you can saturate a 104 MHz Quad SPI controller easily. ## Temperature grade and environment Rated for -40°C to 85°C ambient, this is an industrial-temperature part. It belongs in outdoor telecom cabinets, factory-floor PLCs, and automotive infotainment (non-engine bay). Not rated for 105°C or 125°C — if your design needs that, look at the S25FL128SAGMFV001 which extends to 105°C. ## Lifecycle and compliance It is RoHS3 compliant. No last-time-buy risk for new designs.","metaTitle":"S25FS128SAGMFI101 NOR Flash, 128Mbit, SPI Quad I/O, 133 MHz","metaDescription":"Cypress S25FS128SAGMFI101 128Mbit NOR Flash, SPI Quad I/O, 133 MHz clock, 1.7V-2V supply, -40°C to 85°C, 8-SOIC. Active production, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":"FS-S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Series":"FS-S","Package":"Tube","Technology":"FLASH - NOR","Memory Size":"128Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.209\\\", 5.30mm Width)","Clock Frequency":"133 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI - Quad I/O, QPI","Voltage - Supply":"1.7V ~ 2V","Memory Organization":"16M x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.64","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.64000","currency":"USD"},{"qty":10,"price":"$4.21400","currency":"USD"},{"qty":25,"price":"$4.12280","currency":"USD"},{"qty":50,"price":"$4.10060","currency":"USD"},{"qty":100,"price":"$3.67670","currency":"USD"},{"qty":250,"price":"$3.66332","currency":"USD"},{"qty":500,"price":"$3.52944","currency":"USD"},{"qty":1000,"price":"$3.39500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3dacfaf83e491952e2cb1c0f4a64c8b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does S25FS128SAGMFI101 work with a 3.3V supply?","answer":"No. The supply range is 1.7V to 2V. It will not operate on a 3.3V rail. If your design runs at 3.3V, the pin-compatible S25FL128SAGNFI011 (2.7V–3.6V) is the correct choice."},{"question":"Is S25FS128SAGMFI101 RoHS compliant?","answer":"Yes, it is RoHS3 compliant."},{"question":"Does S25FS128SAGMFI101 support Quad SPI?","answer":"Yes. It supports SPI with Quad I/O and QPI protocols, enabling higher read throughput than standard SPI."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FS128SAGMFI101","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FS128SAGMFI101 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}}