{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"34AA02T-I/MNY","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"34AA02T-I-MNY","canonicalUrl":"https://icboms.com/microchip/34AA02T-I-MNY","factsUrl":"https://icboms.com/api/mcp/products/34AA02T-I%2FMNY","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 34AA02T-I/MNY, 2Kbit I²C EEPROM, 400 kHz clock, 1.7V–5.5V supply, 900 ns access, 256 x 8 organization, -40°C to 85°C, 8-WFDFN Exposed Pad package.","salesMarkdown":"## What this 2Kbit I²C EEPROM brings to a mixed-voltage BOM The Microchip 34AA02T-I/MNY is a 2Kbit serial EEPROM with an I²C interface running at 400 kHz, organized as 256 x 8 bits. The 1.7V to 5.5V supply range is its standout feature — it lets you drop the same part into a 1.8V MCU rail, a 3.3V sensor bus, or a legacy 5V logic design without a separate level translator. The 8-TDFN package (2x3 mm footprint) saves board area for space-constrained IoT or portable gear. ## Industrial temperature and active lifecycle — no obsolescence worry The lifecycle status is Active, meaning Microchip still manufactures it for new designs — no last-time-buy scramble. ROHS3 compliant, so it passes EU material restrictions as shipped. ## Write-cycle timing and bus-speed limits Word and page writes take 5 ms; the page-write buffer lets you load up to 8 bytes in one I²C burst before the internal programming cycle starts. The 400 kHz clock limit means this part runs on Fast-mode (400 kHz) buses, not High-speed (1 MHz). If your bus master already runs at 400 kHz, the 900 ns access time is well within the setup-and-hold margins for a 2.5 µs clock period. For 1 MHz buses you would need a different EEPROM — the 24AA02 family from Microchip does not support 1 MHz either. ## Packaging and tape/reel logistics The 8-TDFN (2x3 mm) body is a leadless package with an exposed pad on the bottom — the pad is not electrically connected internally, but soldering it to a PCB ground plane improves thermal conduction.","metaTitle":"Microchip 34AA02T-I/MNY 2Kbit I²C EEPROM, 400 kHz, 8-TDFN","metaDescription":"2Kbit I²C EEPROM from Microchip, 400 kHz clock, 1.7V–5.5V supply, 900 ns access, -40°C to 85°C, 8-TDFN package. Active lifecycle, ROHS3 compliant.","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":"900 ns","Memory Size":"2Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","Clock Frequency":"400 kHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.7V ~ 5.5V","Memory Organization":"256 x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-TDFN (2x3)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.35000","currency":"USD"},{"qty":25,"price":"$0.34480","currency":"USD"},{"qty":3300,"price":"$0.34500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/50a3de3d02ecc5d131490c6ae417eb68.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does 34AA02T-I/MNY support 1 MHz I²C?","answer":"No — the maximum clock frequency is 400 kHz, which is Fast-mode. For a 1 MHz bus you would need a High-speed-mode part such as the Microchip 24AA02XXX series, which also tops out at 400 kHz; 1 MHz I²C EEPROMs are rare in the 2Kbit density."},{"question":"What is the write cycle time for 34AA02T-I/MNY?","answer":"5 ms for both word and page writes. The page-write buffer accepts up to 8 bytes in one I²C burst before the internal programming cycle begins."},{"question":"Is 34AA02T-I/MNY compatible with 3.3V systems?","answer":"Yes — 3.3V falls comfortably inside the 1.7V to 5.5V supply range. The I²C bus thresholds scale with VCC, so a 3.3V rail gives a 0.99V VIL max and 2.31V VIH min (typical 0.3 x VCC / 0.7 x VCC), which is compatible with standard 3.3V MCU I/O."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/34AA02T-I-MNY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/34AA02T-I-MNY 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}}