{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FM24C04B-GTR","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"FM24C04B-GTR","canonicalUrl":"https://icboms.com/infineon/FM24C04B-GTR","factsUrl":"https://icboms.com/api/mcp/products/FM24C04B-GTR","rawCanonicalId":null},"summary":{"shortDescription":"Cypress F-RAM™ FM24C04B-GTR, 4Kbit (512 x 8) non-volatile FRAM, I²C interface, 1 MHz clock, 550 ns access, 4.5V–5.5V supply, -40°C to 85°C, 8-SOIC surface mount.","salesMarkdown":"The Cypress FM24C04B-GTR is a 4Kbit Ferroelectric RAM (FRAM) from the F-RAM series — a non-volatile memory that combines the fast write speed and low power of SRAM with the data retention of EEPROM. Organized as 512 x 8 bits and accessed through an I2C interface at up to 1 MHz, it delivers a 550 ns access time with no write-cycle delay. ## 5V rail and I2C bus — what the specs mean for your BOM The 4.5V–5.5V supply range ties this part to legacy 5V domains. If your design runs on 3.3V I2C, the low-voltage sibling FM24CL04B-G (2.7V–3.6V) is the drop-in substitute — same 4Kbit density, same 8-SOIC footprint, same 1 MHz bus rate. That matters for high-frequency data logging where an EEPROM would stall for the write cycle. The FM24C04B-GTR is supplied in an 8-pin SOIC (3.90 mm body width) on Tape & Reel — the -GTR suffix. The base part FM24C04B-G ships in Tube; same die, same electricals, just a different output medium for pick-and-place lines. Cypress lists the product status as Active and ROHS3 compliant, so no end-of-life clock is ticking. The 8-SOIC footprint is shared across the entire 4Kbit and 64Kbit F-RAM family, meaning a density upgrade to the FM24CL64B-GTR (64Kbit, I2C, same package) requires no board layout change.","metaTitle":"Cypress FM24C04B-GTR F-RAM, 4Kbit I2C 1MHz 8SOIC","metaDescription":"Cypress FM24C04B-GTR 4Kbit F-RAM, I2C 1MHz, 550ns access, 4.5-5.5V, -40 to 85°C, 8-SOIC. Active, ROHS3.","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)","Access Time":"550 ns","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":"1 MHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"4.5V ~ 5.5V","Base Product Number":"FM24C04","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":"$1.7900","priceTiers":[{"qty":1,"price":"$1.79000","currency":"USD"},{"qty":10,"price":"$1.63300","currency":"USD"},{"qty":25,"price":"$1.58880","currency":"USD"},{"qty":50,"price":"$1.58060","currency":"USD"},{"qty":100,"price":"$1.41290","currency":"USD"},{"qty":250,"price":"$1.40876","currency":"USD"},{"qty":500,"price":"$1.38750","currency":"USD"},{"qty":1000,"price":"$1.32859","currency":"USD"},{"qty":2500,"price":"$1.27951","currency":"USD"},{"qty":5000,"price":"$1.23697","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6db6ae9bdf907297860f58b7ad27cc40.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FM24C04B-GTR/alternatives.json"},"ai":{"faq":[{"question":"Is FM24C04B-GTR a direct replacement for the FM24C04B-G?","answer":"Yes — the FM24C04B-GTR and FM24C04B-G share the same Cypress F-RAM die, same 4Kbit density, same I2C interface, same 8-SOIC package. The only difference is the shipping medium: -GTR is Tape & Reel, -G is Tube. No electrical or footprint requalification needed."},{"question":"Is FM24C04B-GTR compatible with standard 24C04 EEPROMs?","answer":"Functionally yes — the I2C protocol, addressing, and 8-SOIC footprint match the 24C04 serial EEPROM pinout. The key difference is FRAM's write speed: no write-cycle delay or page-buffer management required. If your firmware polls the ACK after every EEPROM write, you can remove that polling loop for the FM24C04B-GTR."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/FM24C04B-GTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/FM24C04B-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}}