{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M24C04-FMB5TG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M24C04-FMB5TG","canonicalUrl":"https://icboms.com/stmicroelectronics/M24C04-FMB5TG","factsUrl":"https://icboms.com/api/mcp/products/M24C04-FMB5TG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M24C04 series EEPROM, M24C04-FMB5TG, 4Kbit I2C, 512x8 organization, 400kHz clock, 1.7-5.5V supply, -20°C to 85°C, 8-UFDFPN (2x3) exposed-pad package, 5ms write cycle.","salesMarkdown":"## Sourcing reality for a discontinued EEPROM The M24C04-FMB5TG: No official replacement part number has been published by STMicroelectronics for this specific package variant; any functional substitute requires verifying the package footprint (8-UFDFPN 2x3 mm) and I2C address compatibility.","metaTitle":"STMicroelectronics M24C04-FMB5TG 4Kbit I2C EEPROM, Obsolete","metaDescription":"STMicroelectronics M24C04-FMB5TG 4Kbit I2C EEPROM, 512x8, 400kHz, 1.7-5.5V, -20C to 85C, 8-UFDFPN. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"title":"M24C04-FMB5TG","Package":"Tape & Reel (TR)","Technology":"EEPROM","Access Time":"900 ns","Memory Size":"4Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-UFDFN Exposed Pad","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.7V ~ 5.5V","Base Product Number":"M24C04","Memory Organization":"512 x 8","Operating Temperature":"-20°C ~ 85°C (TA)","Supplier Device Package":"8-UFDFPN (2x3)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6561","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f8766e766bc28e6b158fb7849bd12dd7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M24C04-FMB5TG/alternatives.json"},"ai":{"faq":[{"question":"What I2C clock speed does this EEPROM support, and does the 5ms write cycle fit a typical Cortex-M firmware budget?","answer":"The bus runs at up to 400 kHz. The 5ms write cycle per page is the figure that matters — a blocking write holds the bus for that duration, so a firmware loop that polls the ack bit without yielding will stall for the full page write time. Restructure as interrupt-driven or split writes into shorter operations if the main loop has cycle hard limits."},{"question":"The board runs on 3.3V — is there enough supply headroom for this part?","answer":"1.7 V to 5.5 V operating range means 3.3 V is well within the window. Under load transients the rail stays safely above the lower limit; the UFDFPN package does not create a thermal issue at EEPROM access currents on a 3.3 V rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M24C04-FMB5TG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M24C04-FMB5TG when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T02:21:57.306Z","lastPublished":"2026-07-21T02:21:57.306Z","indexable":true}}