{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FL256SDSMFBG00","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FL256SDSMFBG00","canonicalUrl":"https://icboms.com/infineon/S25FL256SDSMFBG00","factsUrl":"https://icboms.com/api/mcp/products/S25FL256SDSMFBG00","rawCanonicalId":null},"summary":{"shortDescription":"Cypress FL-S series, 256Mbit SPI NOR Flash, 80 MHz clock, Quad I/O, 2.7-3.6V, -40 to 105°C, 16-SOIC.","salesMarkdown":"## 256 Mbit SPI NOR Flash for code storage and execute-in-place The Cypress S25FL256SDSMFBG00 is a 256 Mbit SPI NOR Flash memory from the FL-S series, organized as 32M x 8 bits. It communicates over a SPI bus with Quad I/O support, clocked at 80 MHz, which gives a read throughput suitable for direct code execution (XIP) in embedded systems without the pin count penalty of a parallel NOR bus. ## 80 MHz Quad I/O — what it means for bus timing At 80 MHz in Quad I/O mode, the read throughput is four data lines at 80 MHz. The SPI bus uses four signal traces. This discrepancy typically means the part is in the last-time-buy window or being phased out in favor of a newer density or voltage variant. For BOM freeze planning, treat this as a watch item: confirm current availability and lead time at quote, and evaluate the pin-compatible successor from the same FL-S family for new designs or long-term production commitments. ## Where it fits in the system This part is sized for firmware images in the 8-32 MB range — enough for a full Linux bootloader + kernel + rootfs on a small embedded controller, or a multi-megabyte application image on a high-end MCU. The non-volatile NOR technology supports reliable code storage with fast random access, unlike NAND which requires bad-block management and ECC. The Quad I/O interface is a standard peripheral on most modern MCUs and MPUs from ST, NXP, Microchip, and others.","metaTitle":"Cypress S25FL256SDSMFBG00 256Mbit SPI NOR Flash, 80 MHz","metaDescription":"Cypress S25FL256SDSMFBG00 256Mbit SPI NOR Flash, 80 MHz clock, Quad I/O, -40 to 105°C, 16-SOIC. Sourced and quoted to order against RFQ.","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":"Tray","Technology":"FLASH - NOR","Memory Size":"256Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","Clock Frequency":"80 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI - Quad I/O","Voltage - Supply":"2.7V ~ 3.6V","Base Product Number":"S25FL256","Memory Organization":"32M x 8","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"16-SOIC","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.7900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to S25FL256SDSMFBG00?","answer":"Within the same Cypress FL-S family, higher-density parts (e.g., 512 Mbit) in the same 16-SOIC package are pin-compatible for density upgrades. For a direct density match, confirm the exact order code of the active successor from the current FL-S datasheet."},{"question":"What is S25FL256SDSMFBG00's listed series?","answer":"The series is FL-S, Cypress's high-performance SPI NOR Flash family with Quad I/O support and clock speeds up to 80 MHz."},{"question":"What package does S25FL256SDSMFBG00 come in?","answer":"It is supplied in a 16-SOIC wide-body package (0.295-inch body width, 7.50 mm), surface-mount, on tray."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FL256SDSMFBG00","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FL256SDSMFBG00 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}}