{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"24AA00T-I/OT","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"24AA00T-I-OT","canonicalUrl":"https://icboms.com/microchip/24AA00T-I-OT","factsUrl":"https://icboms.com/api/mcp/products/24AA00T-I%2FOT","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 24AA00T-I/OT, 128-bit serial EEPROM, I²C, 400 kHz, 1.8V to 5.5V, SOT-23-5, -40°C to 85°C.","salesMarkdown":"The Microchip 24AA00T-I/OT is a 128-bit serial EEPROM organized as 16 x 8 bits, communicating over an I²C bus at up to 400 kHz. Its 128-bit capacity is a fraction of a typical EEPROM — think one-time calibration constants, serial numbers, or a few configuration bytes where a larger memory would be overkill. ## 3500 ns access time — the bus timing reality The 3500 ns access time is the read-cycle time for a byte over the I²C bus. At 400 kHz the bus clock period is 2500 ns, so the access time doesn't limit throughput — the bus protocol overhead does. For a 16-byte read, total transfer time is under a millisecond. This part is not for streaming data; it is for infrequent reads of small payloads. The ROHS3 compliance is current. ## SOT-23-5 package — footprint and storage The SOT-23-5 (SC-74A) package is a common 5-pin surface-mount footprint. The tape-and-reel variant (T suffix) ships on 7-inch reels; cut-tape options are also available. Store reels in a dry cabinet below 30°C / 60% RH to be safe.","metaTitle":"Microchip 24AA00T-I/OT EEPROM, 128-bit I²C, SOT-23-5","metaDescription":"128-bit (16 x 8) serial EEPROM, I²C interface, 400 kHz, 1.8V to 5.5V supply, -40°C to 85°C, SOT-23-5. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Access Time":"3500 ns","Memory Size":"128bit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"16 x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-5","Write Cycle Time - Word, Page":"4ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.26000","currency":"USD"},{"qty":3000,"price":"$0.25500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b4049ad2cb0b11f073dca362b2a06b9e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the exact memory size of 24AA00T-I/OT?","answer":"128 bits, organized as 16 bytes (16 x 8). That is 16 addressable locations, each holding one byte."},{"question":"Does 24AA00T-I/OT support 5V operation?","answer":"Yes. The supply voltage range is 1.8V to 5.5V, so it works on both 3.3V and 5V rails without a regulator."},{"question":"What are the alternatives or equivalents for 24AA00T-I/OT?","answer":"For a larger memory, the 24AA01 (1 Kbit) or 24LC32A (32 Kbit) are I²C-compatible options in similar packages. The 24AA01-I/P is a through-hole DIP variant. None are direct pin-compatible drop-ins — check the package and memory organization before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/24AA00T-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/24AA00T-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}}