{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M24C64-RMN6P","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M24C64-RMN6P","canonicalUrl":"https://icboms.com/stmicroelectronics/M24C64-RMN6P","factsUrl":"https://icboms.com/api/mcp/products/M24C64-RMN6P","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M24C64-RMN6P, 64Kbit I²C EEPROM, 1 MHz clock, 450 ns access, 1.8V-5.5V supply, -40°C to 85°C, 8-SOIC package.","salesMarkdown":"## What this 64Kbit I²C EEPROM brings to the board The STMicroelectronics M24C64-RMN6P is a 64Kbit serial EEPROM organized as 8K x 8 bits, accessed through an I²C interface at clock frequencies up to 1 MHz. That 1 MHz clock puts it in the Fast-mode Plus tier, so it keeps pace with modern MCU I²C peripherals without bus stretching or wait-state penalties. It's housed in an 8-pin SOIC (0.154\", 3.90mm width) — a standard footprint that fits into most existing board layouts without a respin. The write cycle time — 5 ms for a word or page write — is the period the EEPROM takes to program the internal memory array after the I²C master sends the stop condition. During that 5 ms window the part does not acknowledge its own slave address, so the bus master must either poll for ACK or insert a delay. For a 64Kbit device organized as 8K x 8, a full-chip rewrite at one byte per write would take over 40 seconds; page writes (typically 16 bytes per page for this family) bring that down to about 2.6 seconds. If your application writes configuration data infrequently — once per boot or on a field-update event — the 5 ms write time is invisible. But if you are logging sensor data at high rates, you will want to buffer writes in RAM and commit them in page-sized bursts. If your pick-and-place prefers tape-and-reel, the -RMN6T suffix is the same die in the same package on a 13-inch reel. ## Compatibility check: 3.3V logic and RoHS The 1.8V to 5.5V supply range means this part operates natively on a 3.3V rail. The I²C input thresholds scale with VCC: at 3.3V the low-level input is typically 0.3 x VCC (about 1.0V), and the high-level input is 0.7 x VCC (about 2.3V), so a standard 3.3V CMOS output drives it directly. The part is lead-free and RoHS-compliant per ST's standard material declaration; no separate certification document is in this listing, but the suffix does not carry a leaded (e.g., -E) indicator, consistent with the RoHS-compliant build.","metaTitle":"STMicroelectronics M24C64-RMN6P 64Kbit I²C EEPROM, 1 MHz","metaDescription":"STMicroelectronics M24C64-RMN6P 64Kbit I²C EEPROM, 1 MHz clock, 450 ns access, 1.8V-5.5V, -40°C to 85°C, SOIC-8. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Bulk","Technology":"EEPROM","Access Time":"450 ns","Memory Size":"64Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","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":"1.8V ~ 5.5V","Base Product Number":"M24C64","Memory Organization":"8K x 8","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f80a2f163f84bd6e64a778a5e4f1c6d9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M24C64-RMN6P/alternatives.json"},"ai":{"faq":[{"question":"Can M24C64-RMN6P replace M24C64-WMN6P?","answer":"The M24C64-WMN6P is the same 64Kbit I²C EEPROM in the same 8-pin SOIC package, but the -W suffix typically indicates a narrower supply range (2.5V to 5.5V) versus the -R suffix's 1.8V to 5.5V. The pinout is identical, so the -RMN6P is a drop-in replacement that also works at 1.8V. Check the specific datasheet for the -W variant to confirm any timing differences, but for most designs the -RMN6P is a superset replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M24C64-RMN6P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M24C64-RMN6P 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}}