{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"25AA080B-I/ST","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"25AA080B-I-ST","canonicalUrl":"https://icboms.com/microchip/25AA080B-I-ST","factsUrl":"https://icboms.com/api/mcp/products/25AA080B-I%2FST","rawCanonicalId":null},"summary":{"shortDescription":"Microchip 25AA080B-I/ST, 8Kbit SPI EEPROM, 10 MHz clock, 1.8V–5.5V supply, 1K x 8 organization, 5ms write cycle, -40°C to 85°C, 8-TSSOP tube.","salesMarkdown":"## 8Kbit SPI EEPROM for industrial storage The Microchip 25AA080B-I/ST is an 8Kbit serial EEPROM with an SPI interface, organized as 1K x 8 bits. It runs at a 10 MHz clock rate and operates from a 1.8V to 5.5V supply, making it a drop-in for 3.3V or 5V logic systems. The 8-TSSOP package (4.40 mm width) suits space-constrained boards where a small footprint matters. ## Supply voltage and logic compatibility At 3.3V the SPI bus runs at full 10 MHz, which gives a clean read margin for a typical microcontroller SPI peripheral. The 5ms page write cycle is a hard limit for the firmware engineer — any write operation must wait that long before the next command, so the driver needs a polling loop or a timer-based delay. ## Package and mounting This part ships in a tube, not tape-and-reel — the procurement desk should note that if the pick-and-place line expects reels, the 25LC080AT-I/SN variant in the same 8-TSSOP footprint might be a better logistics fit. The 8-TSSOP body is 4.40 mm wide, a fine-pitch SOIC derivative. For the rework tech: MSL is not stated here, but a standard 8-TSSOP is typically MSL 1; still, a 24-hour bake at 125°C before reflow is cheap insurance if the moisture-barrier bag has been punctured. ## Lifecycle and sourcing posture That said, the RoHS compliance is listed as non-compliant — a flag for any BOM that requires full RoHS exemption documentation. If your compliance team needs a RoHS-compliant alternate in the same 8-TSSOP footprint, the 25LC080 series (e.g. 25LC080AT-I/SN) is a functional match with a 2.5V minimum supply.","metaTitle":"Microchip 25AA080B-I/ST 8Kbit SPI EEPROM, 10 MHz, 8-TSSOP","metaDescription":"Microchip 25AA080B-I/ST 8Kbit SPI EEPROM, 10 MHz clock, 1.8V-5.5V supply, -40°C to 85°C, 8-TSSOP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Package":"Tube","Technology":"EEPROM","Memory Size":"8Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","Clock Frequency":"10 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"1K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-TSSOP","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.72000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/981ea70e1ad404b8edc83bb57dca14f5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a direct replacement for 25AA080B-I/ST?","answer":"The 25LC080AT-I/SN shares the 8-TSSOP footprint and industrial temperature range but also requires 2.5V minimum. Both are tape-and-reel packaged, which may simplify automated assembly."},{"question":"Is 25AA080B-I/ST compatible with 3.3V logic?","answer":"Yes, the 1.8V to 5.5V supply range includes 3.3V, and the SPI interface operates at 10 MHz at that voltage without additional buffering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/25AA080B-I-ST","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/25AA080B-I-ST 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}}