{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"93AA76AT-I/OT","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"93AA76AT-I-OT","canonicalUrl":"https://icboms.com/microchip/93AA76AT-I-OT","factsUrl":"https://icboms.com/api/mcp/products/93AA76AT-I%2FOT","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 93AA76AT-I/OT, 8Kbit serial EEPROM, Microwire interface, 3 MHz clock, 1.8V to 5.5V supply, 1K x 8 organization, 5 ms write cycle, -40°C to 85°C, SOT-23-6.","salesMarkdown":"## 8 Kbit EEPROM in a SOT-23-6 — the Microwire workhorse The Microchip 93AA76AT-I/OT is an 8 Kbit serial EEPROM organized as 1K x 8 bits, communicating over a 3 MHz Microwire bus. The SOT-23-6 package keeps the footprint small — useful when board space is tight, but the fine-pitch leads demand a well-tuned reflow profile and a clean stencil aperture. ## 3 MHz Microwire — timing budget for the host At 3 MHz, each bit clocks in 333 ns. The Microwire protocol is a simple synchronous serial interface — three wires (SI, SO, SK) plus chip select. The host firmware must insert a 5 ms write-cycle delay after every word or page write before the next command; polling the DO line for ready/busy is the usual approach. If the host SPI peripheral can be configured for Microwire framing (leading edge data, trailing edge capture), no bit-banging is needed. The 1.8 V minimum supply means the bus levels stay compatible with low-voltage MCUs without a level shifter. For production BOMs that need a second-source option, the 93LC46CT-I/SN (1 Kbit, same Microwire interface, 2.5 V minimum supply, SOIC-8) is a functional alternative at a lower density — but the 93AA76AT-I/OT's 8 Kbit density and wider 1.8 V floor are the primary fit criteria. No pin-compatible drop-in replacement exists at the same density in SOT-23-6; the 93AA66B-I/MS (4 Kbit, MSOP-8) shares the Microwire protocol but differs in package and organization.","metaTitle":"Microchip 93AA76AT-I/OT 8Kbit Microwire EEPROM, SOT-23-6","metaDescription":"Microchip 93AA76AT-I/OT 8Kbit serial EEPROM with 3 MHz Microwire interface, 1.8V-5.5V supply, industrial temp -40°C to 85°C. SOT-23-6 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Memory Size":"8Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","Clock Frequency":"3 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Microwire","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"1K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-6","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.46","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.46000","currency":"USD"},{"qty":3000,"price":"$0.46500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5fe2c54d8ffd643009d52a64fa252a08.pdf","sourceUrl":null},"ai":{"faq":[{"question":"93AA76AT-I/OT equivalent or replacement?","answer":"No exact pin-compatible drop-in replacement exists at 8 Kbit in SOT-23-6. For a functional alternative at a lower density, the 93LC46CT-I/SN (1 Kbit, Microwire, SOIC-8) shares the same bus protocol but requires a different footprint and has a 2.5 V minimum supply. The 93AA66B-I/MS (4 Kbit, Microwire, MSOP-8) is another protocol-compatible option with a different package and organization."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/93AA76AT-I-OT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/93AA76AT-I-OT 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}}