{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M24256-DFMC6TG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M24256-DFMC6TG","canonicalUrl":"https://icboms.com/stmicroelectronics/M24256-DFMC6TG","factsUrl":"https://icboms.com/api/mcp/products/M24256-DFMC6TG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M24256-DFMC6TG, 256Kbit I²C EEPROM, 1 MHz clock, 450 ns access, 1.7V-5.5V supply, -40°C to 85°C, 8-UFDFPN (2x3) package.","salesMarkdown":"## 256 Kbit I²C EEPROM in a 2x3 mm DFN The STMicroelectronics M24256-DFMC6TG is a 256 Kbit serial EEPROM organized as 32 K x 8 bits, accessed over an I²C bus at up to 1 MHz. The 450 ns access time is the random-read latency from the bus; page writes complete in 5 ms. Housed in an 8-UFDFPN (2x3 mm) package with an exposed pad, it targets space-constrained designs in industrial control, telecom, and sensor modules where non-volatile parameter storage is needed. ## 450 ns access and 5 ms page write — bus timing on the I²C line The 450 ns access time is the random-read latency from the I²C bus; at 1 MHz clock, the first data byte appears after the address byte plus this delay. For back-to-back reads, the bus master must respect the minimum time between STOP and START conditions. The 5 ms page-write cycle time is the internal programming window — the part does not acknowledge further I²C commands during that interval. Firmware should poll for ACK or insert a 5 ms delay after each page write before attempting the next transfer. The M24256-DFMC6TG is an active part with no end-of-life notice. It is ROHS3 compliant.","metaTitle":"STMicroelectronics M24256-DFMC6TG 256Kbit I²C EEPROM, 1 MHz","metaDescription":"STMicroelectronics M24256-DFMC6TG 256Kbit I²C EEPROM, 1 MHz clock, 450 ns access, 1.7V-5.5V supply, -40°C to 85°C, 8-UFDFPN. ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Access Time":"450 ns","Memory Size":"256Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-UFDFN Exposed Pad","Clock Frequency":"1 MHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.7V ~ 5.5V","Memory Organization":"32K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-UFDFPN (2x3)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.53","priceTiers":[{"qty":1,"price":"$0.53000","currency":"USD"},{"qty":10,"price":"$0.52000","currency":"USD"},{"qty":25,"price":"$0.48280","currency":"USD"},{"qty":50,"price":"$0.48040","currency":"USD"},{"qty":100,"price":"$0.42660","currency":"USD"},{"qty":250,"price":"$0.42120","currency":"USD"},{"qty":500,"price":"$0.41484","currency":"USD"},{"qty":1000,"price":"$0.40375","currency":"USD"},{"qty":5000,"price":"$0.36295","currency":"USD"},{"qty":10000,"price":"$0.35894","currency":"USD"},{"qty":15000,"price":"$0.35658","currency":"USD"},{"qty":25000,"price":"$0.34809","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c862b22f86a18ef34ddcbc72533c8d3a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M24256-DFMC6TG/alternatives.json"},"ai":{"faq":[{"question":"Is M24256-DFMC6TG RoHS compliant?","answer":"Yes, the M24256-DFMC6TG is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M24256-DFMC6TG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M24256-DFMC6TG 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}}