{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M24C64-FCS6TP/K","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M24C64-FCS6TP-K","canonicalUrl":"https://icboms.com/stmicroelectronics/M24C64-FCS6TP-K","factsUrl":"https://icboms.com/api/mcp/products/M24C64-FCS6TP%2FK","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M24C64-FCS6TP/K, 64Kbit I²C EEPROM, 1 MHz, 450 ns access, 1.7V to 5.5V, -40°C to 85°C, 5-WLCSP (0.96x1.07 mm), Tape & Reel.","salesMarkdown":"## 64 Kbit I²C EEPROM in a wafer-level chip-scale package It operates at a clock frequency up to 1 MHz and delivers a 450 ns access time, making it a fit for parameter storage, calibration data, and firmware configuration in space-constrained designs. ## WLCSP package — board-space trade-offs This variant comes in a 5-bump WLCSP measuring 0.96 x 1.07 mm (supplier device package 5-WLCSP). That footprint is the smallest in the M24C64 family, roughly a third the area of an SO-8. Rework is possible with hot air if the board has a solder mask defined pad and you keep the nozzle temperature under 300°C — lift the part, not the pad. The tape-and-reel shipping format (Cut Tape also available) feeds directly into pick-and-place for high-volume assembly. ## Supply voltage and bus compatibility The I²C interface is open-drain, so the pull-up resistors set the bus voltage — match them to the fastest device on the bus. At 1 MHz, the bus capacitance budget tightens; keep total load under 400 pF to maintain rise-time specs. ## Write cycle time and endurance planning The write cycle time for a word or page is 5 ms. The 64 Kbit array is organized as 8K x 8, so each page write can update up to 8 bytes in one cycle. For frequent parameter updates, consider wear-leveling in software if the application requires more than a few hundred thousand writes to the same address. The base product number M24C64 spans multiple package options, so if your board later needs a larger footprint (SO-8, TSSOP-8), the same die in a different package is available without requalifying the memory controller interface.","metaTitle":"STMicroelectronics M24C64-FCS6TP/K 64Kbit I²C EEPROM","metaDescription":"STMicroelectronics M24C64-FCS6TP/K 64Kbit I²C EEPROM, 1 MHz, 1.7V to 5.5V, industrial temp -40°C to 85°C, 5-WLCSP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"EEPROM","Access Time":"450 ns","Memory Size":"64Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"5-UFBGA, 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":"5-WLCSP (0.96x1.07)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","priceTiers":[{"qty":1,"price":"$0.58000","currency":"USD"},{"qty":10,"price":"$0.52900","currency":"USD"},{"qty":25,"price":"$0.52240","currency":"USD"},{"qty":50,"price":"$0.51920","currency":"USD"},{"qty":100,"price":"$0.46430","currency":"USD"},{"qty":250,"price":"$0.46036","currency":"USD"},{"qty":500,"price":"$0.45354","currency":"USD"},{"qty":1000,"price":"$0.43732","currency":"USD"},{"qty":2500,"price":"$0.42502","currency":"USD"},{"qty":5000,"price":"$0.39832","currency":"USD"},{"qty":12500,"price":"$0.38524","currency":"USD"},{"qty":25000,"price":"$0.36221","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f80a2f163f84bd6e64a778a5e4f1c6d9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M24C64-FCS6TP%2FK/alternatives.json"},"ai":{"faq":[{"question":"Can M24C64-FCS6TP/K be used in 5V systems?","answer":"Yes. The I²C bus signals are open-drain and tolerate 5 V as long as the pull-up resistors are referenced to the bus voltage."},{"question":"What is the cross reference or replacement for M24C64-FCS6TP/K?","answer":"The closest functional peer is M24C64-DFCT6TP/K, which shares the same 64 Kbit density, I²C interface, 1 MHz clock, and 450 ns access time, but in a different package variant. For a direct drop-in replacement, verify the package footprint matches your board — the FCS6TP/K uses a 5-WLCSP, while the DFCT6TP/K uses a different WLCSP bump layout."},{"question":"Is M24C64-FCS6TP/K the same as M24C64-WMN6TP?","answer":"No. Both are 64 Kbit I²C EEPROMs from the M24C64 family, but the WMN6TP comes in an SO-8 package, while the FCS6TP/K is a 5-WLCSP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M24C64-FCS6TP-K","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M24C64-FCS6TP-K 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}}