{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"93LC56B-E/SN","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"93LC56B-E-SN","canonicalUrl":"https://icboms.com/microchip/93LC56B-E-SN","factsUrl":"https://icboms.com/api/mcp/products/93LC56B-E%2FSN","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 93LC56B-E/SN, 2Kbit serial EEPROM, Microwire interface, 2 MHz clock, 2.5V to 5.5V supply, 128 x 16 organization, 8-SOIC package, -40°C to 125°C, ROHS3 compliant.","salesMarkdown":"The Microchip 93LC56B-E/SN is a 2Kbit serial EEPROM organized as 128 x 16 bits, accessed through a Microwire (3-wire) synchronous interface. The 2 MHz clock rate supports firmware read/write loops without dead cycles — useful for storing calibration constants, configuration tables, or small lookup data in industrial or automotive modules. The 8-SOIC footprint is standard across the 93LCxx family, so a density upgrade to 4Kbit or 8Kbit (same package, same pinout) is a straightforward BOM swap if firmware storage grows. ## Write-cycle timing and endurance for field updates Word and page write cycles complete in 6 ms (typical). That is fast enough for in-application parameter updates — think trimming a sensor offset or updating a serial number — without holding the bus for long. The 128 x 16 organization means each write addresses a 16-bit word, which aligns well with 16-bit MCU data paths or packed 8-bit values. For designs that store a few dozen calibration words, this part avoids the overhead of a larger serial Flash.","metaTitle":"Microchip 93LC56B-E/SN EEPROM, 2Kbit Microwire, 8-SOIC","metaDescription":"Microchip 93LC56B-E/SN 2Kbit serial EEPROM with Microwire interface, 2 MHz clock, 2.5V-5.5V supply, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tube","Technology":"EEPROM","Memory Size":"2Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"2 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Microwire","Voltage - Supply":"2.5V ~ 5.5V","Memory Organization":"128 x 16","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"6ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.41","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.41000","currency":"USD"},{"qty":25,"price":"$0.38000","currency":"USD"},{"qty":100,"price":"$0.37000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/33bdc1b24bf9736ab78bdb13e3779170.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the memory size of 93LC56B-E/SN?","answer":"2Kbit, organized as 128 x 16 bits."},{"question":"What is a suitable replacement for 93LC56B-E/SN?","answer":"The 93LC46A-I/ST is a functional peer with the same Microwire interface and 2 MHz clock, but it is a 1Kbit device (128 x 8) and rated only to 85°C. For a drop-in density match, look at the 93LC66 (4Kbit) or 93LC76 (8Kbit) in the same 8-SOIC package — verify the pinout matches your layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/93LC56B-E-SN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/93LC56B-E-SN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}