{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"11LC040T-E/TT","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"11LC040T-E-TT","canonicalUrl":"https://icboms.com/microchip/11LC040T-E-TT","factsUrl":"https://icboms.com/api/mcp/products/11LC040T-E%2FTT","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 11LC040T-E/TT, 4Kbit Serial EEPROM, Single Wire Interface, 512 x 8 Organization, 100 kHz Clock, 2.5V to 5.5V Supply, -40°C to +125°C, SOT-23-3 Package, Tape & Reel.","salesMarkdown":"## Single-wire 4Kbit EEPROM in a three-pin SOT-23-3 The Microchip 11LC040T-E/TT is a 4Kbit serial EEPROM that communicates over a single-wire interface, packing 512 x 8 bits of non-volatile storage into a SOT-23-3 package. That third pin is the data line — the other two are supply and ground — which frees up GPIO on a microcontroller compared to a two-wire I²C or SPI part.","metaTitle":"Microchip 11LC040T-E/TT 4Kbit EEPROM, Single Wire, SOT-23-3","metaDescription":"Microchip 11LC040T-E/TT 4Kbit EEPROM with single-wire interface, 100 kHz clock, 2.5V-5.5V supply, -40°C to 125°C. SOT-23-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Memory Size":"4Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Clock Frequency":"100 kHz","lifecycle_stage":"eol_hot","Memory Interface":"Single Wire","Voltage - Supply":"2.5V ~ 5.5V","Memory Organization":"512 x 8","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SOT-23-3","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.36","priceTiers":[{"qty":1,"price":"$0.36000","currency":"USD"},{"qty":3000,"price":"$0.36000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7e0bb80ac6f9ae234873f64c6baf4f4d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/11LC040T-E%2FTT/alternatives.json"},"ai":{"faq":[{"question":"What is the memory size of 11LC040T?","answer":"The device is organized as 512 x 8 bits, giving a total of 4Kbit of non-volatile EEPROM storage."},{"question":"Is 11LC040T compatible with 3.3V?","answer":"Yes — the supply voltage range is 2.5V to 5.5V, so it operates directly from a 3.3V rail without a level shifter."},{"question":"How does 11LC040T compare to 24LC04?","answer":"The 24LC04 is a 4Kbit I²C EEPROM, while the 11LC040T uses a single-wire interface. The 11LC040T saves one GPIO pin and board space with its SOT-23-3 package, but the 24LC04's I²C bus allows multiple devices on the same two wires. The 11LC040T's 100 kHz single-wire clock is slower than the 24LC04's 400 kHz I²C, but for infrequent parameter writes the throughput difference rarely matters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/11LC040T-E-TT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/11LC040T-E-TT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}