{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M24C64X-FCU6T/TF","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M24C64X-FCU6T-TF","canonicalUrl":"https://icboms.com/stmicroelectronics/M24C64X-FCU6T-TF","factsUrl":"https://icboms.com/api/mcp/products/M24C64X-FCU6T%2FTF","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M24C64X-FCU6T/TF, 64Kbit I2C serial EEPROM, 1 MHz clock, 650 ns access, 1.7V-5.5V supply, 4-WLCSP (0.71x0.73), -40°C to 85°C, Tape & Reel.","salesMarkdown":"## 64Kbit I2C EEPROM in a 4-bump WLCSP The STMicroelectronics M24C64X-FCU6T/TF is a 64Kbit serial EEPROM with an I2C interface, organized as 8K x 8 bits. The part is clocked at up to 1 MHz and features a 650 ns access time and a 5 ms write cycle time for word or page writes. ## Supply voltage and system compatibility It directly answers the question of whether this EEPROM works in a 3.3V or 5V system — it works in both, without a level shifter. This eliminates a common BOM headache when the same design needs to span a product family with different core voltages. The 1 MHz clock rate is the I2C fast-mode plus ceiling, so the bus timing budget is generous for most MCUs. ## Package and footprint for space-constrained boards The footprint is tiny — roughly 0.71 mm by 0.73 mm — which is the primary reason to select this variant over a larger SOIC or TSSOP. There is no last-time-buy or phase-out risk on the immediate horizon.","metaTitle":"STMicroelectronics M24C64X-FCU6T/TF 64Kbit I2C EEPROM, 1 MHz","metaDescription":"STMicroelectronics M24C64X-FCU6T/TF 64Kbit serial EEPROM with I2C interface, 1 MHz clock, 1.7V-5.5V supply, 4-WLCSP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tape & Reel (TR)","Technology":"EEPROM","Access Time":"650 ns","Memory Size":"64Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"4-XFBGA, WLCSP","Product Status":"Active","Clock Frequency":"1 MHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.7V ~ 5.5V","Base Product Number":"M24C64","Memory Organization":"8K x 8","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"4-WLCSP (0.71x0.73)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/aeba5e07806782f7330be33358118746.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M24C64X-FCU6T%2FTF/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M24C64X-FCU6T-TF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M24C64X-FCU6T-TF 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}}