{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"S25FL128LDPMFI003","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"S25FL128LDPMFI003","canonicalUrl":"https://icboms.com/infineon/S25FL128LDPMFI003","factsUrl":"https://icboms.com/api/mcp/products/S25FL128LDPMFI003","rawCanonicalId":null},"summary":{"shortDescription":"Infineon FL-L Series S25FL128LDPMFI003, 128Mbit NOR Flash, SPI - Quad I/O, QPI, 66 MHz, 2.7V-3.6V, -40°C to 85°C, 16-SOIC (0.295\", 7.50mm Width), Surface Mount, Tape & Reel.","salesMarkdown":"It uses a SPI interface with Quad I/O and QPI support, clocked at 66 MHz. Typical applications include firmware storage, boot code, configuration data, and parameter logging in embedded systems, industrial controllers, networking gear, and telecom infrastructure where a reliable, high-speed serial NOR Flash is needed. ## 66 MHz Quad I/O — what the clock speed means for read throughput The 66 MHz clock frequency is the maximum SPI clock for Quad I/O reads. With four data lines active, the effective read throughput reaches about 264 Mbps (66 MHz × 4 bits), which is enough for fast code shadowing or high-speed data logging without needing a parallel NOR. The QPI mode reduces the command overhead by using the same four lines for address and command, trimming latency on random reads. For designs that currently run a single-SPI NOR at lower clock rates, moving to this part can cut firmware load times significantly without a PCB redesign — the 16-SOIC footprint and 3.3V supply keep the migration simple. For a BOM planner, this removes the urgency to qualify a second source or stockpile for an impending EOL. ## Package and supply — what to check on the board The supply range of 2.7V to 3.6V means it runs directly from a 3.3V rail without an external regulator, but check that the rail stays above 2.7V during brown-out or cold-crank — if the supply dips below that, the memory may not retain data reliably during a write cycle. The industrial temperature grade covers most indoor and outdoor enclosures, though for extended automotive or downhole applications you would look at the automotive-grade siblings in the FL-L family.","metaTitle":"Infineon S25FL128LDPMFI003 128Mbit NOR Flash, 66 MHz SPI","metaDescription":"Infineon S25FL128LDPMFI003 128Mbit NOR Flash memory, SPI Quad I/O interface, 66 MHz clock, 2.7V-3.6V supply, -40°C to 85°C, 16-SOIC. Active lifecycle.","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-L","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":"66 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI - Quad I/O, QPI","Voltage - Supply":"2.7V ~ 3.6V","Base Product Number":"S25FL128","Memory Organization":"16M x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-SOIC","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7950","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the memory size of S25FL128LDPMFI003?","answer":"The S25FL128LDPMFI003 is a 128 Mbit NOR Flash, organized as 16M x 8 bits. That is 16 MB of non-volatile storage."},{"question":"What is the clock speed of S25FL128LDPMFI003?","answer":"The maximum SPI clock frequency is 66 MHz. With Quad I/O, the effective read throughput is about 264 Mbps."},{"question":"Is S25FL128LDPMFI003 compatible with 3.3V?","answer":"Yes, the supply voltage range is 2.7V to 3.6V, so it operates directly on a 3.3V rail. Ensure the rail stays above 2.7V during all operating conditions to guarantee reliable write operations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/S25FL128LDPMFI003","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/S25FL128LDPMFI003 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}}