{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"11AA020-I/SN","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"11AA020-I-SN","canonicalUrl":"https://icboms.com/microchip/11AA020-I-SN","factsUrl":"https://icboms.com/api/mcp/products/11AA020-I%2FSN","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 11AA020-I/SN, 2Kbit Serial EEPROM, Single Wire Interface, 100 kHz, 1.8V to 5.5V Supply, 256 x 8 Organization, 5ms Write Cycle, -40°C to 85°C, 8-SOIC Package, Tube.","salesMarkdown":"## Single-wire EEPROM for GPIO-constrained designs The Microchip 11AA020-I/SN is a 2Kbit serial EEPROM that communicates over a single-wire bus, freeing up I2C or SPI pins on the host MCU. ## Write-cycle timing and firmware scheduling Each word or page write takes 5ms, so the firmware must either poll the device or insert a delay before the next write attempt. This is typical for serial EEPROMs in this density class, but worth budgeting in the scheduler if the application writes calibration data or configuration parameters during normal operation. ## Supply voltage and logic compatibility No external level shifting is needed when the host MCU runs at 3.3V or 5V, which simplifies the BOM on mixed-voltage boards.","metaTitle":"Microchip 11AA020-I/SN 2Kbit Single-Wire EEPROM, 100 kHz","metaDescription":"Microchip 11AA020-I/SN 2Kbit EEPROM with single-wire interface, 1.8V-5.5V supply, 100 kHz clock, 5ms write, -40°C to 85°C, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"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":"100 kHz","lifecycle_stage":"eol_hot","Memory Interface":"Single Wire","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"256 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":"$0.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.30000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7e0bb80ac6f9ae234873f64c6baf4f4d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the write cycle time of the 11AA020-I/SN?","answer":"The write cycle time for a word or page is 5ms. Firmware must allow this interval between writes to the device."},{"question":"Is the 11AA020-I/SN RoHS compliant?","answer":"Yes, it is listed as ROHS3 Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/11AA020-I-SN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/11AA020-I-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}}