{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FM25040B-GTR","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"FM25040B-GTR","canonicalUrl":"https://icboms.com/infineon/FM25040B-GTR","factsUrl":"https://icboms.com/api/mcp/products/FM25040B-GTR","rawCanonicalId":null},"summary":{"shortDescription":"Cypress F-RAM™ series, FM25040B-GTR, 4Kbit FRAM, SPI interface, 20 MHz clock, 4.5V–5.5V supply, 8-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## What this FRAM does on the board The Cypress FM25040B-GTR is a 4Kbit ferroelectric RAM from the F-RAM series — a non-volatile memory that writes at bus speed without the write-cycle delays of serial EEPROM. It talks SPI at up to 20 MHz, stores 512 x 8 bits, and holds data without a backup battery. If you are replacing an EEPROM that bottlenecks your write throughput, this is the swap that eliminates the wait states. ## Sourcing and fit for production The 8-SOIC package is a standard footprint.","metaTitle":"FM25040B-GTR F-RAM 4Kbit SPI 20MHz 8-SOIC, Active","metaDescription":"Cypress FM25040B-GTR FRAM, 4Kbit non-volatile memory, SPI interface at 20 MHz, 4.5V-5.5V supply, industrial temp -40 to 85°C. Active part, available to order.","metaKeywords":null},"attributes":{"series":"F-RAM™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"Infineon Technologies","Series":"F-RAM™","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"FRAM (Ferroelectric RAM)","Memory Size":"4Kbit","Memory Type":"Non-Volatile","Memory Format":"FRAM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","Clock Frequency":"20 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"FM25040","Memory Organization":"512 x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0100","priceTiers":[{"qty":1,"price":"$2.01000","currency":"USD"},{"qty":10,"price":"$1.83500","currency":"USD"},{"qty":25,"price":"$1.78480","currency":"USD"},{"qty":50,"price":"$1.77580","currency":"USD"},{"qty":100,"price":"$1.58730","currency":"USD"},{"qty":250,"price":"$1.58268","currency":"USD"},{"qty":500,"price":"$1.55880","currency":"USD"},{"qty":1000,"price":"$1.49262","currency":"USD"},{"qty":2500,"price":"$1.43747","currency":"USD"},{"qty":5000,"price":"$1.38968","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a2d20322b81029c6c6a674bbe44a80d4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FM25040B-GTR/alternatives.json"},"ai":{"faq":[{"question":"Does FM25040B-GTR work at 3.3V supply?","answer":"No. The supply range is 4.5V to 5.5V — it is a 5V-only part. For a 3.3V rail, use the FM25L04B-GTR which is pin-compatible and runs at 2.7V to 3.6V."},{"question":"What is a direct replacement for FM25040B-GTR?","answer":"The tube-packaged FM25040B-G is the same die in a tube format. For a low-voltage alternative, the FM25L04B-GTR is pin-compatible but operates at 2.7V to 3.6V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/FM25040B-GTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/FM25040B-GTR 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}}