{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FS256SAGNFI000","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FS256SAGNFI000","canonicalUrl":"https://icboms.com/infineon/S25FS256SAGNFI000","factsUrl":"https://icboms.com/api/mcp/products/S25FS256SAGNFI000","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies FS-S series SPI NOR flash, S25FS256SAGNFI000, 256 Mbit, 133 MHz, Quad I/O, 1.7-2 V supply, -40 to 85°C, 8-WSON exposed pad, tray.","salesMarkdown":"## 256 Mbit SPI NOR flash in an 8-WSON exposed-pad package The S25FS256SAGNFI000 is a 256 Mbit SPI NOR flash from Infineon's FS-S series, organised as 32M x 8 bits and accessed through a Quad I/O SPI interface that also supports QPI mode for reduced command overhead on random reads. Clock frequency is rated at 133 MHz — in Quad I/O mode this gives a sustained read throughput that supports execute-in-place (XIP) for Cortex-M class microcontrollers without a separate DRAM buffer. The supply voltage window is 1.7 V to 2 V, which means the board's 1.8 V rail must hold regulation within ±200 mV across load transients; a 1.8 V ±10 % regulator that dips to 1.62 V on a current step will drop the part out of spec. Mounting is surface-mount per the standard WSON footprint; the exposed pad is electrically connected to the die substrate and should be tied to ground or left floating per the datasheet recommendation. The tray packaging is suitable for volume pick-and-place, though the part is also available in tape-and-reel through alternate order codes in the FS-S family. The -40°C cold-start guarantee means the flash reliably initialises after a freeze-thaw cycle — important for outdoor gateways and unheated cabinets in northern climates.","metaTitle":"Infineon S25FS256SAGNFI000 SPI NOR Flash, 256 Mbit, 133 MHz","metaDescription":"Infineon S25FS256SAGNFI000 FS-S SPI NOR flash, 256 Mbit, 133 MHz Quad I/O, 1.7-2 V, -40 to 85°C, 8-WSON. Active production — sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":"FS-S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"FS-S","Package":"Tray","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":"133 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":"$5.31","stockQuantity":18,"priceTiers":[{"qty":1,"price":"$5.31000","currency":"USD"},{"qty":10,"price":"$4.84300","currency":"USD"},{"qty":25,"price":"$4.75000","currency":"USD"},{"qty":40,"price":"$4.71550","currency":"USD"},{"qty":80,"price":"$4.23125","currency":"USD"},{"qty":338,"price":"$4.21538","currency":"USD"},{"qty":676,"price":"$3.95077","currency":"USD"},{"qty":1014,"price":"$3.78406","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3dacfaf83e491952e2cb1c0f4a64c8b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to the S25FS256SAGNFI000?","answer":"The S25FL256LAGBHI020 is a 256 Mbit SPI NOR flash in the same 8-WSON package, but it runs on a 2.7 V supply rail (vs 1.7-2 V for the FS-S part) and shares the same 133 MHz Quad I/O interface. The supply voltage difference means they are not drop-in replacements — the board's power rail must match the chosen part's range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FS256SAGNFI000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FS256SAGNFI000 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}}